Engine run
Engine Run Quiz
Test your knowledge on engine operations with this comprehensive quiz designed for technicians and enthusiasts alike. With 42 detailed questions, you'll cover maximum allowable limits, emergency shutdown procedures, and essential maintenance practices.
- 42 challenging questions
- Multiple choice format
- Perfect for technicians and students
What is the maximum allowable ITT prior to spraying water into the engine after waiting 45 minutes after an engine run?
150c
100
540
302
During emergency shutdown, ground personnel shall be positioned by the operator as required.
True
False
Max NF speed during any run is:
92%
93%
94%
94.5%
One full turn on the VG feedback cable changes vane angle how many degrees and what direction opens VGs?
1.2 degrees, clockwise
1.6 degrees, counterclockwise
1.2 degrees, counterclockwise
1.6 degrees, clockwise
During a compressor stall, if stall is recoverable,
Turn ignition on
Bring throttle to max
Stopcock throttle
Immediately set throttle to cut off
At what percent core rpm can the starter be reengaged during coast down to extinguish an internal fire?
0%
10%
Any
5%
An idle speed adjustment of two clicks CW will:
Increase speed by .4%
Increase speed by 4%
Decrease speed by .4%
Decrease speed by 4%
If oil pressure fluctuation exceed +-5, engine shall:
Return to idle for 5 minutes
Be shutdown
Be shutdown and check oil level
Continue to be tested during break-in run
The minimum starter duty cycle off time is 5 minutes.
True
False
____ gallon(s) of MIL 1010 oil is used to preserve an engine.
4
2
3
1
After 1st engine start of the day, subsequent start times will not exceed __ seconds?
45
20
30
60
During emergency shutdown , EMER STOP shall be activated to shutdown the engine only when injury to personnel may result and all the other means fail
True
Falso
How long does oil pressure have to decrease toward normal on starts made under low ambient air temperature conditions? If pressure is not decreasing toward normal, what must be performed?
2 min., accelerate to warm oil and monitor oil pressure
2.5 min., shutdown engine
1 min., shutdown engine
1 min., accelerate to warm oil and monitor oil pressure
During max power trim, what is maximum allowable GAS GEN SPEED (ng)?
100%
104%
94.5%
99.4%
During cold starting, the LPT may be seized up to how many minutes?
3
4
5
6
What is the maximum ITT limit other than start for a TF34?
825
860
895
929
The VG schedule limit at 92% should be 0 +-___
2.5
2.0
1.5
1.0
After calibrating left VG the display shall indicate 62.1 +-__
.1
.01
.02
.2
If VG tracking is excessively open (VG Schedule value more than -4 on DDU) Stress damage to stage 1 compressor blades may result if the engine is operated above what percent?
Idle
92% NG
70% NG
80%NF
Wait 5 minutes and motor the engine for an additional __ minute(s) after depreservation.
1 minute
2 minutes
3 minutes
4 minutes
What is the maximum allowable ITT on engine start
895F for 12 seconds
860c
860F for 12 seconds
895c
All acceleration and deceleration PLA movements during break-in run, except chops and bursts, shall be 4-6 second controlled movements.
True
False
Before Trim Change to: break-in run has been completed, at each shutdown, as engine rollover stops, engine must be motored for 2 minutes on starter to prevent seizure of engine.
True
False
When can idle speed be adjusted
Only when engine is shtutdown
At idle only
When motoring
Both a and b
What is the maximum allowable speed to operate the engine with the cowl open?
25% NF
70%NG
56% NG
Idle
When performing a fuel flow override check when can the T5 disable switch be set to DISABLE?
When the engine is shutdown only
At PLA angles less than 25 Degrees
Less than 745 c ITT
When throttle lever is at idle
What ITT or higher is an indication of a post shutdown fire?
150c
540c
302c
10004c
Do not allow rinse solutions to enter engine until motoring speed has reached 24-28% NG.
True
False
One click of the T5 adjustment cable adjusts ITT by:
5c
3c
2c
1c
Max ng during run is:
94.4%
95%
99.5%
99.4%
At what RPM is the ATS switch to be released on normal engine starts?
45% ng
28% ng
Idle
56% ng
If water wash is required, and ambient air temperature is between _ and _ degrees Fahrenheit methanal must be added to water rinse solution.
32, 0
0, -50
40,-15
Not needed
How many minutes must you not exceed when taking an oil sample after engine run?
10 mintues
15 minutes
25 minutes
30 minutes
What T.O is used to reference cal the PLA in the TEMS EPU
3304-6-212-44
2j-tf34-116-9
3304-6-559-1
1a-10a-10-10
When must the variable geometry vane angle be referenced in the TEMS EPU
Between 24-28% NF
Prior to engine motoring
Motoring between 24-28% NG
At Idle only
Under normal operation, the oil pressure should be within:
38-90
39-90
40-90
40-95
If the starter cuts out below _% ng immediately stopcock throttle.
45
28
39
59
Positive oil pressure must be observed within _seconds after actuating the motor switch?
60
30
15
5
When adjusting idle RPM, 1 click on the fuel control alters speed by setting by_?
.2% NG
.5% ng
.2%nf
.5%nf
Oil pressure must have a rapid drop a minimum of _seconds after placing throttle in off.
5 seconds
10 seconds
25 seconds
30 seconds
Light off shall occur within _ seconds after placing ignition switch to ON?
5
10
15
20
At or below what ambient air temperature may ice conditions exist?
32f
35f
41f
0f
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