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AMT 287 Exam 1 Questions And Answers
|Latest 2025 | Guaranteed Pass
Neglecting drag, how much power is needed to cause a 2500 pound airplane to climb at 1000
R2/mig
Express your answer in ft-lbs/min, watts and HP. - Answer✔2500 lb * 1000 ft= 2,500,000 ft-
lb/min
(1 HP/33,000 ft-lb/min) * (2,500,000 ft-lb/min) = 75.76 HP
(746 watts/ 1 HP)*(75.7 HP) = 56,515.115 watts
Three minutes after take-off how much potential energy will the aircraft of Question #1 possess
(neglet remaining fuel in the tanks)? - Answer✔2,500 lb * 1000 ft.min * 3 min = 7,500,000 ft-lb
PE = 7,500,000 ft-lb
What are the states of matter? Define or describe each. - Answer✔Solids: Have a definite
volume and a definite shape
Liquids: Have a definite volume but take the shape of vessel
Gases: Have neither a definite cilium nor shape but expands
Plasma: Made of very hot, ionized gases (sun and stars)
What distinguishes a liquid from a gas and what is a fluid? - Answer✔1) Gases fill their
containers completely, but liquids may not
2) Gases are lighter than equal climes of liquids
3) Gases are highly compressible, but liquids are essentially not compressible
1
, ©FYNDLAY 2025 ALL RIGHTS RESERVED 8:29 AM A+
Fluid: a substance which changes its shape easily and takes the shape of the container.
Show the value of pressure of the standard day atmosphere at sea level in five different units of
measure. - Answer✔1) 760 mm of mercury
2) 14.70 lbs/in^2
3) 1,1013.25 * 10^3 dynes
4) 1,013.25 millibars
5) 101.325 kilopascals
Show the value of temperature of the standard day atmosphere at sea level in four different
units of measure. - Answer✔1) 59˚ F
2) 15˚ C
3) 298.18 ˚K
4) 518.67˚ R
What kind of a lever is your forearm? - Answer✔3rd class lever
What kind of a lever is a hydraulic wobble pump handle? - Answer✔3rd Class lever
What are the differences between inertia and momentum? - Answer✔Inertia is the resistance
offered by a body to the motion whereas momentum is the tendency of a body to continue
moving.
What is the principal fluid used for propulsion by most heat engines? - Answer✔Air is the
principal fluid for propulsion
Define Thrust - Answer✔Thrust it the force which propels the aircraft.
2
, ©FYNDLAY 2025 ALL RIGHTS RESERVED 8:29 AM A+
What is THP (name and define, or describe it)? - Answer✔THP is thrust horsepower
calculated by multiplying thrust by by aircraft speed (in MPH) divided by by 375 mile-pounds
per hour.
(thrust* aircraft speed (mph))/ (375 miles-punters per hour) = THP
How much thrust is being used by an atreraft that is using 100 THP to go 100 MPH? -
Answer✔X(100mph)/375 = 100 THP
X= 375 lbs of thrust
How much more or less thrust than the airplane of Question #5 is another aircraft using that is
using 100 THP, just like the airplane of Question #5, but is going 90 KTS? -
Answer✔X(103.6)/375 = 100 THP
X=632.0 lbs of thrust
13.0 lbs less than Q #5
What are the advantages of a hydraulic lifter? - Answer✔The advantages of a hydraulic valve
filter or tappets is that it automatically keep the value at 0, trapping the oil in the pressure
chamber. Then, a predetermined leakage occurs between the plunger and cylinder,
compensating for any expansion or contraction in the valve train.
Name all the parts in a typical cylinder assembly: describe the function of each and what
material it is made of. - Answer✔There are two major parts in a cylinder assembly: 1) Cylinder
head 2) Cylinder barrel.
1) The cylinder head is made out of aluminum alloy. Provides a place for the combustion of the
fuel/air mixture and to give the cylinder more heat conductivity for adequate cooling.
2) The cylinder barrel is made out of steel alloy. They hold the piston, therefore, the steel alloy
must be light and withstand high temperatures.
What is the purpose of the process called nitriding? - Answer✔The purpose of nitriding is for
the steel of the cylinder barrel to soak up nitrogen for the gas which forms iron nitrides on the
exposed surface.
3
AMT 287 Exam 1 Questions And Answers
|Latest 2025 | Guaranteed Pass
Neglecting drag, how much power is needed to cause a 2500 pound airplane to climb at 1000
R2/mig
Express your answer in ft-lbs/min, watts and HP. - Answer✔2500 lb * 1000 ft= 2,500,000 ft-
lb/min
(1 HP/33,000 ft-lb/min) * (2,500,000 ft-lb/min) = 75.76 HP
(746 watts/ 1 HP)*(75.7 HP) = 56,515.115 watts
Three minutes after take-off how much potential energy will the aircraft of Question #1 possess
(neglet remaining fuel in the tanks)? - Answer✔2,500 lb * 1000 ft.min * 3 min = 7,500,000 ft-lb
PE = 7,500,000 ft-lb
What are the states of matter? Define or describe each. - Answer✔Solids: Have a definite
volume and a definite shape
Liquids: Have a definite volume but take the shape of vessel
Gases: Have neither a definite cilium nor shape but expands
Plasma: Made of very hot, ionized gases (sun and stars)
What distinguishes a liquid from a gas and what is a fluid? - Answer✔1) Gases fill their
containers completely, but liquids may not
2) Gases are lighter than equal climes of liquids
3) Gases are highly compressible, but liquids are essentially not compressible
1
, ©FYNDLAY 2025 ALL RIGHTS RESERVED 8:29 AM A+
Fluid: a substance which changes its shape easily and takes the shape of the container.
Show the value of pressure of the standard day atmosphere at sea level in five different units of
measure. - Answer✔1) 760 mm of mercury
2) 14.70 lbs/in^2
3) 1,1013.25 * 10^3 dynes
4) 1,013.25 millibars
5) 101.325 kilopascals
Show the value of temperature of the standard day atmosphere at sea level in four different
units of measure. - Answer✔1) 59˚ F
2) 15˚ C
3) 298.18 ˚K
4) 518.67˚ R
What kind of a lever is your forearm? - Answer✔3rd class lever
What kind of a lever is a hydraulic wobble pump handle? - Answer✔3rd Class lever
What are the differences between inertia and momentum? - Answer✔Inertia is the resistance
offered by a body to the motion whereas momentum is the tendency of a body to continue
moving.
What is the principal fluid used for propulsion by most heat engines? - Answer✔Air is the
principal fluid for propulsion
Define Thrust - Answer✔Thrust it the force which propels the aircraft.
2
, ©FYNDLAY 2025 ALL RIGHTS RESERVED 8:29 AM A+
What is THP (name and define, or describe it)? - Answer✔THP is thrust horsepower
calculated by multiplying thrust by by aircraft speed (in MPH) divided by by 375 mile-pounds
per hour.
(thrust* aircraft speed (mph))/ (375 miles-punters per hour) = THP
How much thrust is being used by an atreraft that is using 100 THP to go 100 MPH? -
Answer✔X(100mph)/375 = 100 THP
X= 375 lbs of thrust
How much more or less thrust than the airplane of Question #5 is another aircraft using that is
using 100 THP, just like the airplane of Question #5, but is going 90 KTS? -
Answer✔X(103.6)/375 = 100 THP
X=632.0 lbs of thrust
13.0 lbs less than Q #5
What are the advantages of a hydraulic lifter? - Answer✔The advantages of a hydraulic valve
filter or tappets is that it automatically keep the value at 0, trapping the oil in the pressure
chamber. Then, a predetermined leakage occurs between the plunger and cylinder,
compensating for any expansion or contraction in the valve train.
Name all the parts in a typical cylinder assembly: describe the function of each and what
material it is made of. - Answer✔There are two major parts in a cylinder assembly: 1) Cylinder
head 2) Cylinder barrel.
1) The cylinder head is made out of aluminum alloy. Provides a place for the combustion of the
fuel/air mixture and to give the cylinder more heat conductivity for adequate cooling.
2) The cylinder barrel is made out of steel alloy. They hold the piston, therefore, the steel alloy
must be light and withstand high temperatures.
What is the purpose of the process called nitriding? - Answer✔The purpose of nitriding is for
the steel of the cylinder barrel to soak up nitrogen for the gas which forms iron nitrides on the
exposed surface.
3
