Engines - Misc

Question 1

Primary purpose of flat rated engine is to provide ___ over wide ambient temp range

Answer 1

Constant Thrust

Question 2

The F108-CF-100 engine develops approx ___ of thrust at sea level

Answer 2

22,000lbs

Question 3

The ____ is a hydromechanical component which governs N2 by metering fuel to the engines based on throttle setting, as modified by engine control variables

Answer 3

Main Engine Control (MEC)

Question 4

The MEC ____ automatically compensates for airplane ___ operation.

Answer 4

acceleration fuel schedule; engine bleed air

Question 5

The ___ controls N1 by trimming the MEC to maintain constant thrust

Answer 5

Power Management Control (PMC)

Question 6

With PMC off, MEC is controlled directly by

Answer 6

Throttles

Question 7

PMC changes ___ through MEC to maintain desired ___ rating throughout takeoff and climb

Answer 7

fuel flow; thrust

Question 8

During engine start, when the throttle is first poaced into the start range, the fuel flow ranges between ___ and ___ prior to lightoff (before ignition)

Answer 8

300 and 680 pph

Question 9

With PMC OFF the engine no longer has ___ protection. For takeoff, the PMC inop engine should be set ___ less than the others

Answer 9

overboost; 2%

Question 10

Except for EWO, do not takeoff with more than ___ PMC inop

Answer 10

1

Question 11

EGT caution light comes on at

Answer 11

870 (+/-2)

Question 12

The ___ and ___gages will be inop when only battery power is used during engine start (until a gen is online)

Answer 12

engine oil px; fuel flow

Question 13

If EGT exceeds ___ shut engine down

Answer 13

930C

Question 14

During start, if fuel flow exceeds ___ before light-off, a hot start can occur

Answer 14

680

Question 15

During normal start, throttle is moved to START when N2 reaches

Answer 15

25%

Question 16

If APU or start cart is unable to motor engine to 25%N2, the start sequence can be initiated when max motoring speed reached above ___. (Max motoring speed is less than __ increase in N2 in ___

Answer 16

20%N2; 1%; 5sec

Question 17

Except cold wx starts, when throttle in START EGT should rise within

Answer 17

10sec

Question 18

During start, after starter switch in START, ___should come on and stay on

Answer 18

Start Valve Open Light

Question 19

When engine reaches ___, throttle should be placed in IDLE

Answer 19

50%

Question 20

During at scramble start, throttle is moved to START at

Answer 20

20%N2

Question 21

During scramble start, start outboards when inboards reach

Answer 21

42%

Question 22

Starter damage can occure if starter reengaged above

Answer 22

63%N2