Reduction Gearbox (RGB) 1-16

Question 1

The RGB reduces power turbine output shaft speed of over ___________ to
the propeller operating speed of ____________.

Answer 1

30,000 RPM ; 2000 RPM

Question 2

The RGB is mounted on the ________ of the engine

Answer 2

front

Question 3

How is the RGB driven?

Answer 3

by the hot gases impinging on the two-stage power turbine.

Question 4

There is no mechanical connection between the RGB and the gas generator section.

Answer 4

True

Question 5

A ______ is mounted in the RGB to detect ferrous material in the oil.

Answer 5

chip detector

Question 6

Where is the propeller interface unit (PIU), torque probe, and permanent magnet alternator (PMA) mounted?

Answer 6

on top of the RGB

Question 7

The air conditioning compressor is mounted

on the left side of the RGB

Answer 7

False. It is on the right side of the RGB

Question 8

How is engine power output measured?

Answer 8

by the torque produced by the reduction gearbox