An aircraft that is located 30 miles from a VOR station and shows a 1/2 scale deflection on the CDI would be 2 1/2 or (2.5) miles. from the selected course centerline. This is further explained below.
What is aircraft?Generally, A vehicle or equipment that is able to fly by getting assistance from the air around it is referred to as an aircraft. It does this by using either static lift or the dynamic lift that an airfoil provides, or in certain circumstances by employing the downward thrust that jet engines provide. All of these methods work together to counteract the pull of gravity.
The ground segment of a VOR system and the airplane receiver segment make up the whole of the system. Ground stations may be found at both on- and off-airport locations in order to offer pilots with guidance information while they are on route, as well as when they are arriving at and departing from airports. A VOR antenna, a VOR frequency selector, and a cockpit instrument are all components that make up the aircraft's equipment.
In conclusion, If an aircraft is positioned 30 miles away from a VOR station and exhibits a 1/2 scale deviation on the CDI, then the aircraft is located 2 1/2 miles, or (2.5), off the course centerline that was set.
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Both copper and stainless steel are being considered as a wall material for a liquid cooled rocket nozzle. The cooled exterior of the wall is maintained at 150°C, while the combustion gases within the nozzle are at 2750°C. The gas side heat transfer coefficient is known to be hᵢ = 2×10⁴ W/m²-K, and the radius of the nozzle is much larger than the wall thickness. Thermal limitations dictate that the temperature of copper must not exceed 540°C, while that of the steel must not exceed 980°C. What is the maximum wall thickness that could be employed for each of the two materials? For Cu, ρ = 8933 kg/m³, k = 378 W/m-K and for stainless steel, ρ = 7900 kg/m³, k = 23.2 W/m-K
a. The maximum thickness of the copper nozzle is 3.3 mm
b. The maximum thickness of the steel nozzle is 0.054 mm
The question has to do with heat transfer
What is heat transfer?Heat transfer is the movement of heat energy from one body to anotrher.
How to calculate the maximum wall thickness?Since the rate of heat loss by the gas equal rate of heat gain by the metal.
Rate of heat loss by gasThe rate of heat loss by gas is P = -hA(T - T') where
h = heat transfer coefficient of gas = 2 × 10⁴ W/m²-K, A = surface area of nozzle, T = maximum temperature of metal and T = Temperature of gas = 2750°CRate of heat gain by metalThe rate of heat gain by metal is given by P' = kA(T - T")/t where
k = thermal coefficient of metal, A = surface area of nozzle, T = maximum temperature of metal, T" = temperature of exterior wall of nozzle = 150°C and t = thickness of nozzle. Maximum thickness of nozzle.Since P = P', we have that
-hA(T - T') = kA(T - T")/t
Making t subject of the formula, we have
t = -k(T - T")/h(T - T')
a. Maximum thickness for copper nozzleGiven that for copper
T = 540°C and k = 378 W/m-KSubstituting the values of the variables into t, we have
t = -k(T - T")/h(T - T')
t = -378 W/m-K(540°C - 150°C)/[2 × 10⁴ W/m²-K(540°C - 2750°C)]
t = -378 W/m-K(390°C)/[2 × 10⁴ W/m²-K(-2210°C)]
t = 147420 W/m/4420 × 10⁴ W/m²
t = 147420 W/m/44200000 W/m²
t = 0.0033 m
t = 3.3 mm
So, the maximum thickness of the copper nozzle is 10.71 cm
b. Maximum thickness for steel nozzleGiven that for steel
T = 980°C and k = 23.2 W/m-KSubstituting the values of the variables into t, we have
t = -k(T - T")/h(T - T')
t = -23.2 W/m-K(980°C - 150°C)/[2 × 10⁴ W/m²-K(980°C - 2750°C)]
t = -23.2 W/m-K(830°C)/[2 × 10⁴ W/m²-K(-1770°C)]
t = 19256 W/m/3540 × 10⁴ W/m²
t = 19256 W/m/35400000 W/m²
t = 0.0000544 m
t = 0.0544 mm
t ≅ 0.054 mm
So, the maximum thickness of the steel nozzle is 0.054 mm
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Cd, also called blank______, was the first widely available optical format for pc users.
Answer: Compact Disc
c) Also known as moral philosophy, Et hics is a branch of phil osophy which
seeks to address questions about morality; that is, about concepts like good and bad, right and wrong, justice, virtue, etc. There is quite a number of approaches to the study of ethical issues. With clear illustrations, compare and contrast Duty-based and Out come – based ethics
It should be noted that duty-based ethics is the intent of an action while outcome-based ethics means the outcome of an action.
What are ethics?It should be noted that ethics are the moral principles that govern a person's behaviour or the conducting of an activity.
Here, duty-based ethics are what people are talking about when they refer to the principle of the thing.
Also, duty-based ethics teaches that some acts are right or wrong based on how they're viewed in the society.
It should be noted that outcome-based ethics simply dictates that the decision to act in a particular way should be beneficial to the people and have a positive impact on them. In this case, the focus is on the result.
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When an inside corner is being welded in the horizontal position, undercutting can be decreased or prevented by?
Answer:
By using a forward-inclined half-moon torch position, stopping momentarily at each end of the weld pool
Explanation:
By using a forward-inclined half-moon torch position, stopping momentarily at each end of the weld pool
Adjusting welding parameters, using appropriate electrode size, and maintaining proper torch angle can prevent undercutting in horizontal
welding of an inside corner.
We have,
When an inside corner is being welded in the horizontal position, undercutting can be decreased or prevented by adjusting the welding parameters, such as:
- Controlling Welding Parameters:
Adjusting the welding parameters is crucial in preventing undercutting.
It involves regulating the welding current, voltage, and travel speed.
- Selecting Appropriate Electrode Size:
Choosing the right electrode size is essential to control the heat generated during the welding process.
Smaller electrode diameters generally provide lower heat input, which can help prevent undercutting.
- Maintaining Proper Torch Angle and Manipulation Techniques:
Keeping the correct torch angle during welding is crucial to control the weld pool and metal deposition.
- reducing the welding current and travel speed
- using the appropriate electrode size
- maintaining proper torch angle and manipulation techniques.
Thus,
Adjusting welding parameters, using appropriate electrode size, and maintaining proper torch angle can prevent undercutting in horizontal welding of an inside corner.
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When measuring the resistance of an electrical load, connect the meter ____ the load.
Answer:
multimeter
Explanation: in parallel
What pretakeoff check should be made of a vacuum-driven heading indicator in preparation for an ifr flight?
Answer:
After 5 minutes, set the indicator to the magnetic heading of the aircraft and check for proper alignment after taxi turns.
Explanation:
The pretakeoff check is that;
After 5 minutes, set the indicator to the magnetic heading of the aircraft and check for proper alignment after taxi turns.
Perform pre-flight checks on the vacuum-driven heading indicator, including the power source, zero setting, gyro drift, and accurate operation before an IFR flight.
We have,
Before a flight, especially for IFR (Instrument Flight Rules) operations, it's crucial to conduct a thorough pre-flight check of the vacuum-driven heading indicator, also known as the directional gyro or DG.
The heading indicator is a crucial instrument for maintaining proper heading during flight. Here are the key checks to perform:
- Power and Vacuum Source:
Ensure that the aircraft's vacuum system is functioning correctly and providing adequate suction to power the heading indicator.
Verify that the vacuum system pressure is within the manufacturer's specified range.
- Instrument and Case Inspection:
Visually inspect the heading indicator and its case for any signs of damage, cracks, or loose fittings.
Make sure the instrument's glass is clean and clear for easy readability.
- Zero Setting:
Set the heading indicator to the correct heading using the aircraft's magnetic compass or another reliable heading reference. This process is known as "synchronizing" the heading indicator.
- Gyro Drift Check:
- Operation Check:
Thus,
Perform pre-flight checks on the vacuum-driven heading indicator, including the power source, zero setting, gyro drift, and accurate operation before an IFR flight.
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Technician A says that some manufacturers recommend against breaking the cylinder glaze with a glaze breaker when re-ringing an engine that has not been removed from the car. Technician B says that a Flex-Hone is used to help break the cylinder glaze so new rings can seat more easily. Who is right
Both Technician A that says that some manufacturers recommend against breaking the cylinder glaze with a glaze breaker and Tech B that says Flex-Hone is used to help break the cylinder glaze are right.
What is the reason behind deglazing a cylinder?
Deglazing can be regarded as the techniques that is been used on the surface of an engine cylinder which is been roughened to create friction between the moving parts .
Doing this will now give room for engine oil to grip the sides of the cylinder, hence Both Technician A that says that some manufacturers recommend against breaking the cylinder glaze with a glaze breaker and Tech B that says Flex-Hone is used to help break the cylinder glaze are right.
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How do you fix this?
from random import randint
class Character:
def __init__(self):
self.name = ""
self.health = 1
self.health_max = 1
def do_damage(self, enemy):
damage = min(
max(randint(0, self.health) - randint(0, enemy.health), 0),
enemy.health)
enemy.health = enemy.health - damage
if damage == 0:
print("%s evades %s's attack." % (enemy.name, self.name))
else:
print("%s hurts %s!" % (self.name, enemy.name))
return enemy.health <= 0
class Enemy(Character):
def __init__(self, player):
Character.__init__(self)
self.name = 'a goblin'
self.health = randint(1, player.health)
class Player(Character):
def __init__(self):
Character.__init__(self)
self.state = 'normal'
self.health = 10
self.health_max = 10
def quit(self):
print(
"%s can't find the way back home, and dies of starvation.\nR.I.P." % self.name)
self.health = 0
def help(self): print(Commands.keys())
def status(self): print("%s's health: %d/%d" %
(self.name, self.health, self.health_max))
def tired(self):
print("%s feels tired." % self.name)
self.health = max(1, self.health - 1)
def rest(self):
if self.state != 'normal':
print("%s can't rest now!" % self.name)
self.enemy_attacks()
else:
print("%s rests." % self.name)
if randint(0, 1):
self.enemy = Enemy(self)
print("%s is rudely awakened by %s!" %
(self.name, self.enemy.name))
self.state = 'fight'
self.enemy_attacks()
else:
if self.health < self.health_max:
self.health = self.health + 1
else:
print("%s slept too much." % self.name)
self.health = self.health - 1
def explore(self):
if self.state != 'normal':
print("%s is too busy right now!" % self.name)
self.enemy_attacks()
else:
print("%s explores a twisty passage." % self.name)
if randint(0, 1):
self.enemy = Enemy(self)
print("%s encounters %s!" % (self.name, self.enemy.name))
self.state = 'fight'
else:
if randint(0, 1):
self.tired()
else:
if randint(0, 1):
self.fall()
def flee(self):
if self.state != 'fight':
print("%s runs in circles for a while." % self.name)
self.tired()
else:
if randint(1, self.health + 5) > randint(1, self.enemy.health):
print("%s flees from %s." % (self.name, self.enemy.name))
self.enemy = None
self.state = 'normal'
else:
print("%s couldn't escape from %s!" %
(self.name, self.enemy.name))
self.enemy_attacks()
def attack(self):
if self.state != 'fight':
print("%s swats the air, without notable results." % self.name)
self.tired()
else:
if self.do_damage(self.enemy):
print("%s executes %s!" % (self.name, self.enemy.name))
self.enemy = None
self.state = 'normal'
if randint(0, self.health) < 10:
self.health = self.health + 1
self.health_max = self.health_max + 1
print("%s feels stronger!" % self.name)
else:
self.enemy_attacks()
def enemy_attacks(self):
if self.enemy.do_damage(self):
print("%s was slaughtered by %s!!!\nR.I.P." %
(self.name, self.enemy.name))
def fall(self):
print(
"%s fell down a pit and dies.\nR.I.P." % self.name)
self.health = 0
Commands = {
'quit': Player.quit,
'help': Player.help,
'status': Player.status,
'rest': Player.rest,
'explore': Player.explore,
'flee': Player.flee,
'attack': Player.attack,
}
p = Player()
p.name = input("What is your character's name? ")
print("(type help to get a list of actions)\n")
print("%s enters a dark cave, searching for adventure." % p.name)
while(p.health > 0):
line = input("> ")
args = line.split()
if len(args) > 0:
commandFound = False
for c in Commands.keys():
if args[0] == c[:len(args[0])]:
Commands[c](p)
commandFound = True
break
if not commandFound:
print("%s doesn't understand the suggestion." % p.name)
Using the knowledge in computational language in python it is possible to write a code that was fixed;
Writting in python:from random import randint
class Character:
def __init__(self):
self.name = ""
self.health = 1
self.health_max = 1
def do_damage(self, enemy):
damage = min(
max(randint(0, self.health) - randint(0, enemy.health), 0),
enemy.health)
enemy.health = enemy.health - damage
if damage == 0:
print("%s evades %s's attack." % (enemy.name, self.name))
else:
print("%s hurts %s!" % (self.name, enemy.name))
return enemy.health <= 0
class Enemy(Character):
def __init__(self, player):
Character.__init__(self)
self.name = 'a goblin'
self.health = randint(1, player.health)
class Player(Character):
def __init__(self):
Character.__init__(self)
self.state = 'normal'
self.health = 10
self.health_max = 10
def quit(self):
print(
"%s can't find the way back home, and dies of starvation.\nR.I.P." % self.name)
self.health = 0
def help(self): print(Commands.keys())
def status(self): print("%s's health: %d/%d" %
(self.name, self.health, self.health_max))
def tired(self):
print("%s feels tired." % self.name)
self.health = max(1, self.health - 1)
def rest(self):
if self.state != 'normal':
print("%s can't rest now!" % self.name)
self.enemy_attacks()
else:
print("%s rests." % self.name)
if randint(0, 1):
self.enemy = Enemy(self)
print("%s is rudely awakened by %s!" %
(self.name, self.enemy.name))
self.state = 'fight'
self.enemy_attacks()
else:
if self.health < self.health_max:
self.health = self.health + 1
else:
print("%s slept too much." % self.name)
self.health = self.health - 1
def explore(self):
if self.state != 'normal':
print("%s is too busy right now!" % self.name)
self.enemy_attacks()
else:
print("%s explores a twisty passage." % self.name)
if randint(0, 1):
self.enemy = Enemy(self)
print("%s encounters %s!" % (self.name, self.enemy.name))
self.state = 'fight'
else:
if randint(0, 1):
self.tired()
def flee(self):
if self.state != 'fight':
print("%s runs in circles for a while." % self.name)
self.tired()
else:
if randint(1, self.health + 5) > randint(1, self.enemy.health):
print("%s flees from %s." % (self.name, self.enemy.name))
self.enemy = None
self.state = 'normal'
else:
print("%s couldn't escape from %s!" %
(self.name, self.enemy.name))
self.enemy_attacks()
def attack(self):
if self.state != 'fight':
print("%s swats the air, without notable results." % self.name)
self.tired()
else:
if self.do_damage(self.enemy):
print("%s executes %s!" % (self.name, self.enemy.name))
self.enemy = None
self.state = 'normal'
if randint(0, self.health) < 10:
self.health = self.health + 1
self.health_max = self.health_max + 1
print("%s feels stronger!" % self.name)
else:
self.enemy_attacks()
def enemy_attacks(self):
if self.enemy.do_damage(self):
print("%s was slaughtered by %s!!!\nR.I.P." %
(self.name, self.enemy.name))
Commands = {
'quit': Player.quit,
'help': Player.help,
'status': Player.status,
'rest': Player.rest,
'explore': Player.explore,
'flee': Player.flee,
'attack': Player.attack,
}
p = Player()
p.name = input("What is your character's name? ")
print("(type help to get a list of actions)\n")
print("%s enters a dark cave, searching for adventure." % p.name)
while(p.health > 0):
line = input("> ")
args = line.split()
if len(args) > 0:
commandFound = False
for c in Commands.keys():
if args[0] == c[:len(args[0])]:
Commands[c](p)
commandFound = True
break
if not commandFound:
print("%s doesn't understand the suggestion." % p.name)
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A resistor, an inductor, and a capacitor are connected in series to an ac source. What is the condition for resonance to occur?.
Answer:if power factor =1 is possible for that.
Explanation:when pf is unity. means 1.
What is the name of this piece?
Answer: block o’ metal
Explanation:
Which disk interface uses parallel data transfer but has high reliability and an advanced command set? group of answer choices sata pata scsi sas
A disk interface that is designed and developed to use parallel data transfer but with high reliability and an advanced command set is: C. PATA.
What is a hard-disk drive?A hard-disk drive can be defined as an electro-mechanical, non-volatile data storage device that is made up of magnetic disks (platters) that rotates at high speed.
What is Disk Management?Disk Management can be defined as a type of utility that is designed and developed to avail end users an ability to convert two or more basic disks on a computer system to dynamic disks.
In Computer technology, PATA is a disk interface that is designed and developed to use parallel data transfer but with high reliability and an advanced command set.
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What is voltage drop?
Answer:
Explanation:
It is the voltage a voltmeter would read when connected across something that has resistance.
___________0_________O______O_______
| |
| | |
|_____________________| |_____________ |
|
The diagram above is supposed to represent 3 lightbulbs connected in series. The vertical lines in the middle are supposed to be a battery which powers the three light bulbs. If you put a voltmeter across one of the lightbulbs, it will read a voltage that is 1/3 of the voltage of the battery.
Answer
That reading you get across the one light bulb is The Voltage Drop.
The household refrigerator fresh-food compartment is a good example of ____ refrigeration
A pilot reports that when the hydraulic pump is running, the pressure is normal. However, when the pump is stopped, no hydraulic pressure is available. This is a indication of a
A pilot reports that when the hydraulic pump is running, the pressure is normal. However, when the pump is stopped, no hydraulic pressure is available. This is an indication of a leaking accumulator air valve
This is further explained below.
What is an accumulator air valve?Generally, An accumulator of the bladder type is a metal tank that houses a rubber bladder that is filled with compressed gas. This form of the accumulator is also sometimes referred to as a hydro-pneumatic accumulator. In addition, the discharge port has a poppet valve, and the gas valve that is used to precharge the bladder has its own separate valve.
In conclusion, When the hydraulic pump is operating normally, according to the report of a pilot, the pressure is normal. On the other hand, there is no hydraulic pressure available when the pump is turned off. The presence of this symptom is evidence of a leaky accumulator air valve.
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Question 5 of 10
How much cubic inch space is required inside a box for 4 #6 XHHN current carrying conductors?
The maximum cubic inch space that is required inside a box for 4 #6 XHHN current carrying conductors is 10 cubic inches.
What is current carrying conductor?
A current-carrying conductor is a conductor that experience a force when it is in a magnetic field, due to the interaction between the magnetic field & the field (magnetic) produced by moving charges in the wire.
The HHN stands for High Heat-resistant Nylon-coated.
The maximum cubic inch space that is required inside a box for 4 #6 XHHN current carrying conductors is calculated as follows;
cubic inch space = 4 x 2.5 in³
cubic inch space = 10 in³
Thus, the maximum cubic inch space that is required inside a box for 4 #6 XHHN current carrying conductors is 10 cubic inches.
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The factor of safety for a machine element depends on the particular point selected for the analysis.
This bar is made of AISI 1006 cold-drawn steel (Sy=280MPa) and it is loaded by the forces F=0.55kN, P=8.0kN and T=30N.m. Based upon the Von Misses theory, determine the safety factor for points A and B.
Based upon the Von Mises theory, the safety factor for points A and B are 2.77 and 6.22 respectively.
How to calculate the safety factor for points A and B?From the diagram of this bar made of AISI 1006 cold-drawn steel shown in the image attached below, we can logically deduce the following parameters:
Stress, Sy = 280 MPa.Force, F = 0.55 kN to N = 550 N.Pressure, P = 8.0 kN to N = 800 N.Surface tension, T = 30 Nm.Length, l = 100 mm to m = 0.1 m.Diameter, d = 200 mm to m = 0.02 m.At point A, the stress is given by this equation:
σx = Mc/I + P/Area
[tex]\sigma_x = \frac{Fl(\frac{d}{2}) }{\frac{\pi d^2}{64} } +\frac{P}{\frac{\pi d^2}{4} } \\\\[/tex]
σx = 32Fl/πd³ + 4P/πd²
Substituting the given parameters into the formula, we have;
σx = 32(550)(0.1)/π(0.02)³ + 4(800)/π(0.02)²
σx = 95.49 MPa.
Next, we would determine the torque:
Mathematically, torque can be calculated by using this formula:
τxy = Tr/J = 16T/πd³
τxy = 16(30)/π(0.02)³
τxy = 19.10 MPa.
From Von Misses theory, we have:
σVM = √(σx² + 3τxy²)
σVM = √(95.49² + 3(19.10)²)
σVM = 101.1 MPa.
Now, we can calculate the safety factor for point A:
n = Sy/σVM
n = 280/101.1
n = 2.77.
At point B, the stress is given by this equation:
σx = 4P/πd²
σx = 4(800)/π(0.02)²
σx = 25.47 MPa.
Next, we would determine the torque:
Mathematically, torque can be calculated by using this formula:
τxy = Tr/J = 16T/πd³ + 4V/3A
τxy = 16(30)/π(0.02)³ + 4(550)/3π(0.02)³
τxy = 21.43 MPa.
From Von Mises theory, we have:
σVM = √(σx² + 3τxy²)
σVM = √(25.47² + 3(21.43)²)
σVM = 45.02 MPa.
Now, we can calculate the safety factor for point B:
n = Sy/σVM
n = 280/45.02
n = 6.22.
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What term is used to describe when a room becomes so hot that everything in it ignites simultaneously?.
When a room becomes so hot that everything in it ignites simultaneously it is termed a flashover.
What is a flashover?In a confined space, a flashover occurs when the majority of the directly exposed flammable material ignites almost simultaneously. Certain organic compounds go through thermal decomposition when heated and emit combustible gases as a result.
Every flammable surface exposed to thermal radiation in a compartment or confined space ignites quickly and simultaneously during a flashover, a thermally driven event. For typical combustibles, flashover typically happens when the upper section of the compartment achieves a temperature of about 1,100 °F.
Flashover circumstances are more likely to occur in buildings with hidden compartments, lower ceiling heights, room partitions, and energy-efficient or hurricane windows.
Therefore, the sudden ignition of everything in the room is called a flashover.
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The ________ system removes and reduces heat caused by friction between the moving engine parts and the explosion of fuel in the cylinders.
The cooling system removes and reduces the heat caused by friction between the moving engine parts and the explosion of fuel in the cylinders. The correct option is d)
What is the cooling system?The cooling system is a system that works on engines of machines and cars. It prevents friction for the parts of the engine that are moving and runs a smooth machine.
It also prevents the heating of the machines. Furthermore, it is like a liquid coolant that cools the machines and prevents overheating.
Thus, the correct option is d) cooling.
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The question is incomplete. Your most probably complete question is given below:
a) steering
b) brake
c) suspension
d) cooling
Both copper and stainless steel are being considered as a wall material for a liquid cooled rocket nozzle. The cooled exterior of the wall is maintained at 150°C, while the combustion gases within the nozzle are at 2750°C. The gas side heat transfer coefficient is known to be hᵢ = 2×10⁴ W/m²-K, and the radius of the nozzle is much larger than the wall thickness. Thermal limitations dictate that the temperature of copper must not exceed 540°C, while that of the steel must not exceed 980°C. If the nozzle is constructed with the maximum wall thickness, which material would be preferred? For Cu, ρ = 8933 kg/m³, k = 378 W/m-K and for stainless steel, ρ = 7900 kg/m³, k = 23.2 W/m-K
a. The maximum thickness of the copper nozzle is 0.33 cm
b. The maximum thickness of the steel nozzle is 0.054 cm
c. The material preferred is steel
The is a heat transfer question
What is heat transfer?Heat transfer is the movement of thermal energy from one body to the other.
How do we calculate the maximum wall thickness?We know that the rate of heat loss by the gas equals rate of heat gain by the metal.
The rate of heat loss by gasThe rate of heat loss by gas is P₁ = -hA(T₂ - T₁) where
h = The heat transfer coefficient of gas = 2 × 10⁴ W/m²-K,A = The surface area of nozzle,T₂ = The maximum temperature of metal and T₁ = The temperature of gas = 2750°CThe rate of heat gain by metalThe rate of heat gain by metal is P₂ = kA(T₂ - T₃)/d where
k = The hermal coefficient of metal,A = The surface area of nozzle,T₂ = The maximum temperature of metal,T₃ = The temperature of exterior wall of nozzle = 150°C and d = thickness of nozzle.The maximum thickness of nozzle.Given that P₁ = P₂, we can write
-hA(T - T') = kA(T - T")/d
So we make d subject of the formula, thus
t = -k(T₂ - T₃)/h(T₂ - T₁)
a. Maximum thickness for copper nozzleWe know that for copper
T₂ = 540°C andk = 378 W/m-KSubstituting the values of the variables into d, we have
d = -k(T₂ - T₃)/h(T₂ - T₁)
d = -378 W/m-K(540°C - 150°C)/[2 × 10⁴ W/m²-K(540°C - 2750°C)]
d = -378 W/m-K(390°C)/[2 × 10⁴ W/m²-K(-2210°C)]
d = -147420 W/m/-4420 × 10⁴ W/m²
d = 147420 W/m/44200000 W/m²
d = 0.0033 m
d = 0.33 cm
So, the maximum thickness of the copper nozzle is 0.33 cm
b. Maximum thickness for steel nozzleWe know that for steel
T₂ = 980°C andk = 23.2 W/m-KSubstituting the values of the variables into d, we have
d = -k(T₂ - T₃)/h(T₂ - T₁)
d = -23.2 W/m-K(980°C - 150°C)/[2 × 10⁴ W/m²-K(980°C - 2750°C)]
d = -23.2 W/m-K(830°C)/[2 × 10⁴ W/m²-K(-1770°C)]
d = -19256 W/m/-3540 × 10⁴ W/m²
d = 19256 W/m/35400000 W/m²
d = 0.00054 m
d = 0.054 cm
So, the maximum thickness of the steel nozzle is 0.054 cm
c. Which material is preferred?Since the steel nozzle has a thickness of 0.054 cm while the copper nozzle has a thickness of 0.33 cm, we see that the thickness of the steel nozzle is less. So, the steel is preffered.
So, the material preferred is steel
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Explain the concept quality
Answer:
Hey there!
Explanation:
This is your answer....
The standard of something as measured against other things of a similar kind; the degree of excellence of something.
OR
Quality engineering is the discipline of engineering concerned with the principles and practice of product and service quality assurance and control. In software development, it is the management, development, operation and maintenance of IT systems and enterprise architectures with a high quality standard.
Hope it helps!
Brainliest pls!
Have a good day!^^
what do you understand by the statement"the relative velocity of a body A with respect to body B".
The relative velocity is defined as the velocity of an object with respect to another observer. It is the time rate of change of relative position of one object with respect to another object.
What is the relative velocity of A with respect to B?The relative velocity of A with respect to B= velocity of the body A – velocity of the body B.
What is relative velocity and its formula?The relative velocity formula is expressed as. V → = V A B → + V B C → Where. VAB is the velocity with respect to A and B, VBC is the velocity with respect to B and C and VAC is the velocity with respect to A and C.
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the upper joint is directly above the lower joint when
viewed from the side
Answer: zero caster
Explanation:
Dampness or moisture introduces ____ into the weld, which causes cracking when some metals are welded.
Answer: Dampness or moisture introduces hydrogen into the weld, which causes cracking when some metals are welded.
Explanation:
This moisture (hydrogen) is a major cause of weld cracking and porosity.
You have three gear wheels a, b and c connected to each other,if you turn the first gear wheel "a" clockwise what will happen to b and c
In the case above, It will take more time for a tooth of wheel B and C to make a full turn (slower) than it will for a tooth of wheel A.
What are gear wheels?A gear wheel is known to be a kind of a wheel that is known to be made up of a teeth and/or cogs that is known to function with those of other aspect of the wheel or part.
Note that in the above case, lets use a scenario that Wheel P has 5 teeth. Wheel M has 3 teeth and wheel N has 1 teeth. If wheel P makes a full turn, wheel M turn will be slower as well as wheel N which will take more time.
Therefore, In the case above, It will take more time for a tooth of wheel B and C to make a full turn than it will for a tooth of wheel A.
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A station supplies 250 kVA at a lagging power factor of 0.8. A synchronous motor is connected in parallel with the load. If combined load is 250 kW with lagging p.f. of 0.9, determine:
Answer:al part of question
Explanation:voltage
What color is a board sternlight
We can infer and logically deduce that the color of a boat's sternlight is white.
What is a sternlight?A sternlight can be defined as a white light that is designed and developed to be placed as closely as possible and practical with the stern shining continuously (constantly).
By default, a sternlight is typically affixed to the boat in such a way that the light will shine out at an angle of 135 degrees (135°) from the back of the boat.
In this context, we can infer and logically deduce that the color of a boat's sternlight is white and it avails sailors and other persons the opportunity of determining and knowing the direction that a boat (vessel) is moving.
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Complete Question:
What color is a boat sternlight?
Exam Lesson Name: The Trades of Plumbing and Pipet
Exam number: 286115RR
Exam Guidelines
Exam Instructions
Question 4 of 20:
Select the best answer for the question.
4. Before starting construction work on a building, you should apply for which of the following?
OA. A contractor's license
OB. A permit
OC. A bond
OD. An inspector's approval
Mark for review (Will be highlighted on the review page)
Answer: ………………..
Explanation:???????????????
Question 2: (a) In your own words, clearly distinguish and differentiate between Ethics in Engineering and Ethics in Computing ( 9 Marks) (b) Draw a table of comparison to illustrate your answer in (a) and provide in each case five practical examples in the fields outlined above.
Engineering ethics is not without abstraction, but in contrast with computing, it is animated by a robust and active movement concerned with the seamless identification of ethics with practice.
What is engineering?This is a branch of science and technology concerned with the design, building, and use of engines, machines, and structures that uses scientific principles.
Comparing ethics in engineering and ethics in computing:
Engineering ethics are a set of rules and guidelines. While computing ethics deals with procedures, values and practices.In engineering ethics, engineers must adhere to these rules as a moral obligation to their profession While in computing ethics, the ethics govern the process of consuming computer technology.Following these ethics for the two professions will NOT cause damage, but disobeying them causes damage.Some practical examples in the computing field:
Avoid using the computer to harm other people such as creating a bomb or destroying other people's work.Users also should not use a computer for stealing activities like breaking into a bank or company.Make sure a copy of the software had been paid for by the users before it is used.Some practical examples in the engineering field:
Integrity for oneself.Respect for one another.Pursuit of excellence and accountability.Hence, Engineering ethics is the field of system of moral principles that apply to the practice of engineering and following them is important to the profession.
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what happend to the roster after he laid eggs
Answer: The Animal was sentenced in a solemn judicial proceeding and condemned to be burned alive
Explanation: bye rooster xd
Your cousin shows you an ipod that she got in 2005. you’re amazed that she was a(n) ________ adopter according to rogers’ bell curve.
