?

B．could cause FDP vapors to enter the aircraft but would have no effect on engine thrust or power.

?

C．can reduce engine performance and cause surging and/or compressor stalls.

正确答案：C

(119)Which is an effect of ice, snow, or frost formation on an airplane?

? ? ?

A．Decreased angle of attack for stalls. B．Decreased stall speed. C．Decreased pitchup tendencies.

正确答案：A

(120)Which is an effect of ice, snow, or frost formation on an airplane?

? ? ?

A．Increased stall speed.

B．Increased pitchdown tendencies. C．Increased angle of attack for stalls.

正确答案：A

(121)Baffle plates in wing fuel cells prevent

?

Fuel coming from one tank to another during turbulent flight

? ?

Over pressure in the fuel tank

Movement of the fuel (surging) in the tank during acceleration/deceleration and in turbulence

正确答案：C

(122)Engine bleed air is supplied to the air gap above the fuel in the tanks primarily to

? ?

A．warm the fuel

B．ensure an adequate supply of fuel pressure is maintained to the APU

?

C．prevent cavitation

正确答案：C

(123)Minimum specific fuel consumption of the turboprop engine is normally available in which altitude range?

? ? ?

A．10,000 feet to 25,000 feet. B．25,000 feet to the tropopause. C．The tropopause to 45,000 feet

正确答案：B

(124)ESHP (Equivalent shaft horsepower) of a turboprop engine is a measure of

? ? ?

A．Turbine inlet temperature B．Shaft horsepower and jet thrust C．Propeller thrust only

正确答案：B

(125)What does the term of Equivalent shaft horsepower (ESHP) of a turboprop engine describe?

? ? ?

A．shaft horsepower and jet thrust. B．jet thrust only. C．propeller thrust only.

正确答案：A

(126)What criteria determines which engine is the \

?

A．The one with the center of thrust closest to the centerline of the fuselage.

?

B．The one with the center of thrust farthest from the centerline of the fuselage.

?

C．The one designated by the manufacturer, which develops most usable thrust.

正确答案：A

(127)Where is the critical altitude of a supercharged-reciprocating engine?

?

A．the altitude at which maximum allowable BMEP can be obtained

?

B．the highest altitude at which a desired manifold pressure can be obtained

?

C．highest altitude where the mixture can be leaned to best power ratio

正确答案：B

(128)What is the definition of the critical altitude of a supercharged-reciprocating engine?

?

A．Highest altitude where the mixture can be leaned to best power ratio.

?

B．The highest altitude at which a desired manifold pressure can be obtained.

?

C．The altitude at which maximum allowable BMEP can be obtained.