Powerplant

Question 0

The variable geometry (VG) system varies the position of the inlet guide vanes and the stator vanes on stages:

Answer 0

1 to 4

Question 1

The cf34-8c5, with APR, has a thrust rating of:

Answer 1

13,560-14,750 lbs

Question 2

What engine model is equipped on the crj-900 series of aircraft?

Answer 2

CF34-8C5

Question 3

During normal operation, the data concentrator units monitor:

Answer 3

N1, ITT, N2, oil pressure, temperature, engine vibration, and fuel flow

Question 4

10th stage bleed air is used for:

Answer 4

Air Conditioning

Question 5

The engines may be started using the APU, ground source or engine cross bleed:

Answer 5

True

Question 6

Cross bleed air starts require that:

Answer 6

Operating engine to achieve 42 psi

Question 7

IGN B is powered from

Answer 7

Battery Bus

Question 8

Ignition A

Answer 8

AC Bus

Question 9

Ignition B

Answer 9

DC Battery Bus

Question 10

Ignition cut-out occurs at:

Answer 10

50% N2

Question 11

Refilling of the oil system is provided by a replenishment tank:

Answer 11

Located in the aft equipment bay

Question 12

Engine oil is cooled by:

Answer 12

Fuel/ oil heat exchanger because fuel is cold & oil is hot

Question 13

80% of engine thrust is generated by?

Answer 13

Bypass Air

Question 14

How are the CRJ engines protected from compressor stall and surge protection?

Answer 14

Variable geometric vanes

Question 15

Under what conditions can the FADEC be set to Flex Thrust?

Answer 15

All of the above : thrust levers at idle or shutoff detects, WOW for at least one minute, assumed temperature is greater than actual outside air temperature, & airspeed is less than 65 knots

Question 16

When will One Engine Operational thrust be activated?

Answer 16

N1 mismatch 15% RPM

Question 17

The left engine is the master engine for

Answer 17

N1 & N2 sync

Question 18

The primary thrust setting reference is:

Answer 18

N1

Question 19

With wing anti-ice on, the N2 rpm indicators will:

Answer 19

Turn white from 0 to 77%

Question 20

Pressing the left engine START switch light

Answer 20

Opens the left bleed air start valve and the isolation valve

Question 21

FLEX N1 is computed by the

Answer 21

FMS computer