Air Tech- Engine Performance

Force is equal to

• Acceleration x Mass

• Power x Time

• Distance x Torque

• Brake Power x Distance

Tags

NGSS.HS-PS2-1

Work is equal to

• Force x Distance

• Acceleration x Mass

• Distance x Torque

• Distance x Time

The capacity to do work is

• Power

• Energy

• Torque

• Force

Tags

NGSS.HS-PS3-2

The power output from the crankshaft of a piston engine can be expressed in

• Brake Horsepower (BHP)

• Indicated Power (IP)

• Friction Power (FP)

• Maximum Continuous Power (MCP)

Torque is

• Something I do too much of

• A force which produces a turning motion

• Measure in Joules

• The capacity to do work

"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

Power is

• the rate of doing work

• equal to Force x Distance

• the capacity to do work

• a turning or twisting force

Tags

NGSS.HS-PS3-2

Which of these conditions will produce the most efficient engine performance? Select all that apply

• Mixture properly leaned

• Aircraft at full throttle height

• Low RPM and high manifold pressure

• Carburettor heat selected on

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