Tag Archives: ratio

An engine pressure ratio (EPR) gauge reading normally shows the ratio of:

A: jet pipe pressure to combustion chamber pressure.
B: jet pipe pressure to compressor inlet pressure.
C: combustion chamber pressure to compressor inlet pressure.
D: compressor outlet pressure to compressor inlet pressure.

 

 

 

 

 

 

 

 

Answer: B

An aeroplane has the following flap settings: 0(degrees), 15(degrees), 30(degrees) and 45(degrees). Slats can also be selected. Which of the following selections will most adversely affect the CL/CD ratio?

A: Flaps from 30(degrees) to 45(degrees).
B: The slats.
C: Flaps from 0(degrees) to 15(degrees).
D: Flaps from 15(degrees) to 30(degrees).

 

 

 

 

 

 

 

 

Answer: A

Which statement is correct for a descent without engine thrust at maximum lift to drag ratio speed?

A: A tailwind component increases the ground distance.
B: A headwind component increases the ground distance.
C: A tailwind component increases fuel and time to descent.
D: A tailwind component increases the time in the descent

 

 

 

 

 

 

 

 

Answer: A