WorksheetsCPL Acft Tech - Engine performance
Total questions: 15
Worksheet time: 8mins
Force is equal to
Acceleration x Mass
Power x Time
Distance x Torque
Brake Power x Distance
A normally aspirated engine is one which
is not fitted with a supercharger or turbocharger
has a turbocharger but no supercharger
has a supercharger but no turbocharger
has both a supercharger and a turbocharger
Work is equal to
the square root of acceleration
Force x Distance
Watts x Force
Mass x Acceleration
The capacity to do work is
Power
Energy
Torque
Force
The power output from the crankshaft of a piston engine can be expressed in
Brake Horsepower
Indicated Power
Friction Power
Maximum Continuous Power
Torque is
what some IAANZ students do too much of
a force which produces a turning motion
measured in Joules
the capacity to do work
100 HP is equal to approximately how many kiloWatts?
75
125
150
175
"Rated Power" is the brake power developed by an engine in good condition under....
standard conditions and at a stated RPM
full throttle
standard conditions and full throttle height
full throttle and at service ceiling
For a non-supercharged engine, the critical altitude of an aircraft will be close to
sea level
full throttle height
service ceiling
Power is
the rate of doing work
equal to Force x Distance
the capacity to do work
a turning or twisting force
Which of these conditions will produce the most efficient engine performance? Select all those that apply.
Mixture properly leaned
Aircraft at full throttle height
Low RPM and high manifold pressure
Carburetor heat selected on
Thinking about the Power Available (also known as Brake Power) and Power Required curves, when graphed against TAS, which statement is correct?
The difference between the curves represents power losses due to...
engine friction
propeller inefficiency
propeller inefficiency and engine friction
drag
Mechanical efficiency involves the relationship between power input and power output. It can be calculated by;
brake power divided by indicated power
brake power divided by fuel consumption
volume of the charge divided by piston displacement
fuel flow divided by brake power
Volumetric efficiency can be calculated by
brake power divided by indicated power
brake power divided by fuel consumption
volume of the charge divided by piston displacement
fuel flow divided by brake power
The Thermal efficiency of an engine is the
brake power divided by indicated power
brake power divided by fuel consumption
volume of the charge divided by piston displacement
fuel flow divided by piston displacement
