Mc-130h Engine Run Quiz
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General quiz for use by those studying MC-130H engine run program
Questions and Answers
- 1.
The #1 engine generator powers what AC bus under normal operation?
- A.
Essential
- B.
Right
- C.
Left
- D.
Main
Correct Answer
C. LeftExplanation
The #1 engine generator powers the Left AC bus under normal operation.Rate this question:
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- 2.
Maximum starting temperature with one re-start allowed?
- A.
750C
- B.
975C
- C.
1077C
- D.
850C
Correct Answer
D. 850CExplanation
The maximum starting temperature with one re-start allowed is 850°C. This means that the temperature can reach up to 850°C initially, and if it needs to be restarted, it can be brought back to that temperature. However, it cannot exceed 850°C even with a re-start.Rate this question:
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- 3.
What actions should be taken if the start valve light fails to extinguish within approximately 15 seconds of releasing starter button?
- A.
Condition lever feather, fire handle pulled for effected engine.
- B.
Radio the control tower declaring an emergency.
- C.
Radio the MOC to dispatch the fire department.
- D.
Place the bleed air switch for the effected engine to off and shut down the engine.
- E.
All of the above
Correct Answer
D. Place the bleed air switch for the effected engine to off and shut down the engine.Explanation
If the start valve light fails to extinguish within approximately 15 seconds of releasing the starter button, it indicates a potential issue with the engine start. In this situation, the correct action to take is to place the bleed air switch for the affected engine to off and shut down the engine. This is important to prevent any further damage or potential hazards.Rate this question:
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- 4.
Rotation of the propeller should be indicated by the ground observer within how long of engaging the starter button?
- A.
20 seconds
- B.
5 seconds
- C.
Immediately
- D.
10 seconds
Correct Answer
B. 5 secondsExplanation
The ground observer should indicate the rotation of the propeller within 5 seconds of engaging the starter button. This indicates that the propeller is functioning properly and the engine has started successfully. Waiting any longer could indicate a problem with the engine or starter system.Rate this question:
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- 5.
What is the normal starting temperature in null?
- A.
800C-840C
- B.
750C-830C
- C.
780C-810C
- D.
831C-850C
Correct Answer
C. 780C-810C -
- 6.
For engine restart, turbine inlet temperature must be below what temperature?
- A.
400C
- B.
150-250C
- C.
200-400C
- D.
200C and 100C if using enrichment
Correct Answer
D. 200C and 100C if using enrichmentExplanation
The correct answer is 200C and 100C if using enrichment. This means that for an engine restart, the turbine inlet temperature must be below 200C. However, if enrichment is being used, the temperature must be below 100C. Enrichment refers to the process of adding extra fuel to the engine to increase its power output. Therefore, if enrichment is being used, the temperature threshold for engine restart is lower.Rate this question:
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- 7.
With any two engine generators operating, which electrical buses will be powered?
- A.
Main and Essential
- B.
Left and Right
- C.
All electrical buses
- D.
None of the above
Correct Answer
C. All electrical busesExplanation
When any two engine generators are operating, all electrical buses will be powered. This means that all the electrical systems on the aircraft will receive power, ensuring that all essential functions and equipment are operational. This is important for maintaining the safety and functionality of the aircraft during flight.Rate this question:
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- 8.
What is the normal pressure range for the emergency and auxiliary hydraulic systems?
- A.
2900-3200psi
- B.
2900-3500psi
- C.
2900-3300psi
- D.
Nothing below 3300psi
Correct Answer
C. 2900-3300psiExplanation
The normal pressure range for the emergency and auxiliary hydraulic systems is between 2900 and 3300psi.Rate this question:
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- 9.
What are the three sources of bleed air?
- A.
Wind, power cart, an aircraft in front operating it's engines
- B.
LOPAC, Huffer cart, lox cart
- C.
External, APU, engine
- D.
All of the above
Correct Answer
C. External, APU, engineExplanation
The answer "External, APU, engine" correctly identifies the three sources of bleed air. Bleed air is extracted from the compressor stages of the aircraft's engines, the auxiliary power unit (APU), and from external sources such as ground power units or air conditioning units. These sources provide the necessary compressed air for various aircraft systems, including cabin pressurization, air conditioning, and engine starting.Rate this question:
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- 10.
What is the RPM range of low speed ground idle (LSGI)?
- A.
92.5-100.5%
- B.
96-106%
- C.
69-75.5%
- D.
None of the above
Correct Answer
C. 69-75.5%Explanation
The correct answer is 69-75.5%. This range represents the RPM (Rotations Per Minute) range of low speed ground idle (LSGI). LSGI is a mode in which the engine operates at a lower RPM while the aircraft is on the ground, typically during taxiing or when the aircraft is stationary. This range ensures that the engine runs at an appropriate speed for ground operations, providing sufficient power without causing excessive wear or fuel consumption.Rate this question:
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- 11.
The engine low oil light illuminates at?
- A.
4 US Quarts
- B.
4-12 US Gal
- C.
4 US Gal
- D.
2 Quarts low
Correct Answer
C. 4 US GalExplanation
The engine low oil light illuminates at 4 US Gal because this is the specified amount of oil that triggers the warning system. When the oil level in the engine drops below this threshold, the sensor detects it and activates the low oil light to alert the driver.Rate this question:
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- 12.
What is the normal engine generator frequency?
- A.
110-125cps/hz
- B.
9-21cps/hz
- C.
24cps/hz
- D.
380-420cps/hz
Correct Answer
D. 380-420cps/hzExplanation
The normal engine generator frequency is 380-420cps/hz. This frequency range is commonly used in engine generators to ensure efficient and reliable operation of electrical equipment. It is important for the frequency to be within this range to prevent damage to the equipment and ensure proper functioning.Rate this question:
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- 13.
What is the range for the normal brake accumulator pre-load?
- A.
1000 psi +or- 100psi
- B.
1200psi +or- 100psi
- C.
1500psi +or- 100psi
- D.
300psi +or- 100pi
Correct Answer
C. 1500psi +or- 100psiExplanation
The correct answer is 1500psi +or- 100psi. This means that the range for the normal brake accumulator pre-load is 1400psi to 1600psi.Rate this question:
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- 14.
What is the maximum allowable oil pressure in the power section during starting and warm-up?
- A.
60-85psi
- B.
50-60psi
- C.
250psi
- D.
50-100psi
Correct Answer
D. 50-100psiExplanation
During starting and warm-up, the maximum allowable oil pressure in the power section is between 50-100psi. This range ensures that the oil pressure is sufficient to lubricate the engine components and provide proper functioning without causing any damage or excessive wear. It allows for a gradual increase in oil pressure as the engine warms up, ensuring smooth operation and preventing any potential issues that could arise from low or high oil pressure.Rate this question:
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- 15.
During start, the start valve light should illuminate within?
- A.
3 seconds of engaging start button
- B.
10 seconds of engaging start button
- C.
5 seconds of engaging start button
- D.
15 seconds of engaging start button
Correct Answer
C. 5 seconds of engaging start buttonExplanation
The start valve light should illuminate within 5 seconds of engaging the start button. This indicates that the start valve is functioning properly and fuel is being supplied to the engine for ignition. If the light does not illuminate within this timeframe, there may be an issue with the start valve or fuel supply system.Rate this question:
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- 16.
What is the maximum turbine inlet temperature that should not be exceeded?
- A.
1067-1083C
- B.
1083C
- C.
1010
- D.
19,600 in/lbs
Correct Answer
B. 1083CExplanation
The maximum turbine inlet temperature that should not be exceeded is 1083C.Rate this question:
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- 17.
In fuel balancing, what is the total amount allowed between wings?
- A.
500-1000lbs
- B.
1500lbs
- C.
1000-2000lbs more than one another
- D.
1200lbs between symmetricals
Correct Answer
B. 1500lbsExplanation
In fuel balancing, the total amount allowed between wings is 1500lbs. This means that the difference in fuel quantity between the left and right wings should not exceed 1500lbs. This ensures that the aircraft remains balanced and stable during flight.Rate this question:
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- 18.
When fuel balancing, how much fuel should be maintained between outboard and inboard tanks?
- A.
2500-3000lbs
- B.
1000-2000lbs
- C.
500-1000lbs, with the outboard kept higher than the inboard
- D.
500-1000lbs, with the inboard kept higher than the outboard
- E.
None of the above
Correct Answer
C. 500-1000lbs, with the outboard kept higher than the inboardExplanation
When fuel balancing, it is recommended to maintain 500-1000lbs of fuel between the outboard and inboard tanks, with the outboard tank kept higher than the inboard tank. This helps to maintain the proper balance and stability of the aircraft during flight.Rate this question:
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- 19.
When balancing fuel, how much fuel should be maintained between symmetrical main and external tanks?
- A.
1500lbs
- B.
500-1000lbs
- C.
1000lbs
- D.
There is no need to maintain fuel load between these tanks
Correct Answer
C. 1000lbsExplanation
The correct answer is 1000lbs. When balancing fuel between symmetrical main and external tanks, it is important to maintain an equal amount of fuel in both tanks. This helps to ensure proper weight distribution and stability of the aircraft during flight. By keeping 1000lbs of fuel in each tank, the aircraft remains balanced and reduces the risk of imbalance-related issues.Rate this question:
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- 20.
The start valve light should extinguish approximately how long after releasing the starter button?
- A.
5 seconds
- B.
10 seconds
- C.
20 seconds
- D.
15 seconds
Correct Answer
D. 15 secondsExplanation
The start valve light should extinguish approximately 15 seconds after releasing the starter button.Rate this question:
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- 21.
What is the fuel source for the APU?
- A.
#3 Auxiliary pump
- B.
#1 External tank
- C.
#2 Boost pumps
- D.
Surge box located in the #2 tank
Correct Answer
D. Surge box located in the #2 tankExplanation
The fuel source for the APU is the surge box located in the #2 tank.Rate this question:
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- 22.
What is the normal oil tank quantity of the APU?
- A.
4 US gal
- B.
4-12 US quarts
- C.
4 US quarts
- D.
4-12 US gal
Correct Answer
C. 4 US quartsExplanation
The normal oil tank quantity of the APU is 4 US quarts.Rate this question:
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- 23.
What is the Utility and Booster hydraulic system pre-loads
- A.
2900psi
- B.
1000psi +or- 100psi
- C.
300psi +or- 100psi
- D.
1500psi +or- 100psi
Correct Answer
D. 1500psi +or- 100psiExplanation
The utility and booster hydraulic system pre-loads are set at 1500psi with a tolerance of plus or minus 100psi. This means that the system is designed to operate at a pressure of 1500psi, but it can fluctuate within a range of 100psi higher or lower than that value. This allows for some flexibility in the system's performance while still maintaining a relatively consistent pressure level.Rate this question:
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- 24.
During normal operation, the APU generator will power what electrical bus?
- A.
Only left
- B.
Only right
- C.
Only essential
- D.
Only main
Correct Answer
C. Only essentialExplanation
The APU generator will power only the essential electrical bus during normal operation. This means that it will provide power to the systems that are necessary for the safe operation of the aircraft, such as critical instruments, essential lighting, and communication systems. The left, right, and main electrical buses are not powered by the APU generator in this scenario.Rate this question:
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- 25.
If the start valve light does not illuminate within 5 seconds during starting what action should be taken?
- A.
Condition lever feather
- B.
Discontinue start
- C.
Discharge fire agent
- D.
Evacuate the aircraft
Correct Answer
B. Discontinue startExplanation
If the start valve light does not illuminate within 5 seconds during starting, the correct action to be taken is to discontinue the start. This is because the start valve light indicates that the start valve is open and fuel is being introduced into the engine. If the light does not illuminate, it suggests a potential issue with the start valve or fuel flow, and continuing the start could lead to further complications or damage to the engine. Therefore, it is necessary to discontinue the start to prevent any potential risks or damages.Rate this question:
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- 26.
What is the APU starter duty cycle?
- A.
1 min on, 5 min off
- B.
1 min on, 4 min off
- C.
1 min on, 30 min off
- D.
1on 1 off, 1on 5 off, 1on 30 off
Correct Answer
B. 1 min on, 4 min offExplanation
The APU starter duty cycle refers to the amount of time the APU starter is operated and the amount of time it is allowed to rest. In this case, the correct answer is "1 min on, 4 min off," which means that the APU starter is operated for 1 minute and then allowed to rest for 4 minutes before it can be operated again. This duty cycle helps prevent overheating and allows the starter to cool down between cycles, ensuring its proper functioning and longevity.Rate this question:
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- 27.
During starting, the APU should indicate
- A.
98-102%
- B.
98-102% within 60 seconds
- C.
100% +or- 2% within 35 seconds
- D.
100% +or- 5% within 15 seconds
Correct Answer
C. 100% +or- 2% within 35 secondsExplanation
The correct answer is 100% +or- 2% within 35 seconds. This means that during starting, the APU (Auxiliary Power Unit) should reach a speed of 100% with an acceptable deviation of plus or minus 2% within 35 seconds. This indicates that the APU is starting up efficiently and functioning properly within the specified time frame and speed range.Rate this question:
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- 28.
For engine power settings in excess of ________, with a wind velocity of ______, the aircraft will be headed into the wind within_______.
- A.
19,600 in/lb, 10 Knots, 45 Degrees
- B.
9,000 in/lb, 20 Knots, 30 Degrees
- C.
7,000 in/lb, 10 Knots, 30 Degrees
- D.
5,000 in/lb, 30 Knots, 10 Degrees
Correct Answer
C. 7,000 in/lb, 10 Knots, 30 DegreesExplanation
For engine power settings in excess of 7,000 in/lb, with a wind velocity of 10 Knots, the aircraft will be headed into the wind within 30 Degrees.Rate this question:
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- 29.
What is the bleed air bleed down check limitations?
- A.
35psi to 20psi in 14 seconds
- B.
30psi to 15psi in no less than 16 seconds
- C.
30psi to 15psi in at least 4 minutes
- D.
30psi to 15psi in less than 16 seconds
Correct Answer
B. 30psi to 15psi in no less than 16 secondsExplanation
The bleed air bleed down check limitations refer to the rate at which the pressure in the system decreases. The correct answer states that the pressure should go from 30psi to 15psi in no less than 16 seconds. This means that the pressure should not decrease faster than 30psi to 15psi in 16 seconds, indicating a specific time frame for the bleed down process.Rate this question:
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- 30.
The #4 engine generator powers what electrical AC bus under normal operation?
- A.
Main
- B.
Left
- C.
Right
- D.
Essential
Correct Answer
C. RightExplanation
The #4 engine generator powers the electrical AC bus on the right side under normal operation.Rate this question:
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- 31.
In numbered sequence (#1,#2,#3,#4) what engine generator powers which electrical AC bus?
- A.
Right, Left, Main, Essential
- B.
Left, Main, Essential, Right
- C.
Right, Essential, Main, Right
- D.
Left, Essential, Main, Right
Correct Answer
D. Left, Essential, Main, RightExplanation
The correct answer indicates that the left engine generator powers the left electrical AC bus, the essential generator powers the essential electrical AC bus, the main generator powers the main electrical AC bus, and the right engine generator powers the right electrical AC bus.Rate this question:
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- 32.
During normal operation, what is the power section oil pressure limit?
- A.
50-60psi
- B.
150-250psi
- C.
50-100psi
- D.
65-80psi
Correct Answer
A. 50-60psiExplanation
The power section oil pressure limit during normal operation is 50-60psi. This means that the oil pressure should be maintained within this range to ensure proper functioning of the power section. Pressure below or above this range may indicate a problem or potential damage to the system.Rate this question:
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- 33.
What is the limit for normal engine generator voltage?
- A.
12-24 volts
- B.
110-120 volts
- C.
380-420 volts
- D.
21-24 volts
Correct Answer
B. 110-120 voltsExplanation
The normal limit for engine generator voltage is 110-120 volts. This range is commonly used for most electrical appliances and equipment in residential and commercial settings. It ensures that the voltage supplied by the generator is within a safe and acceptable range for the proper functioning of electrical devices.Rate this question:
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- 34.
What is the maximum allowable engine torque that should not be exceeded?
- A.
500 ft/lbs
- B.
19,600 in/lbs
- C.
19,600 ft/lbs
- D.
1,960 in/lbs
Correct Answer
B. 19,600 in/lbsExplanation
The maximum allowable engine torque that should not be exceeded is 19,600 in/lbs. This means that the engine should not produce a torque greater than this value, as it may lead to mechanical failure or damage. Torque is a measure of rotational force, and in this case, it is measured in inch-pounds. Therefore, the correct answer indicates the maximum limit for the engine torque in inch-pounds.Rate this question:
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- 35.
The engine should be on speed and stable within how long of engaging starting sequence?
- A.
30 seconds
- B.
94% or rated speed
- C.
16% of rated speed
- D.
60 seconds
Correct Answer
D. 60 secondsExplanation
The engine should be on speed and stable within 60 seconds of engaging the starting sequence. This means that after starting the engine, it should reach its desired speed and maintain stability within a minute. This is important for the proper functioning and efficiency of the engine.Rate this question:
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- 36.
During normal operation, the APU EGT (exhaust gas temperature) should not exceed what temperature?
- A.
400C
- B.
600-610C
- C.
680C
- D.
None of the above
Correct Answer
C. 680CExplanation
During normal operation, the APU EGT (exhaust gas temperature) should not exceed 680C. This temperature threshold is likely determined based on the specifications and limitations of the APU system. Exceeding this temperature could indicate a potential issue or malfunction with the APU, which could lead to further damage or safety concerns. Therefore, monitoring and ensuring that the APU EGT stays below 680C is important for the safe and efficient operation of the aircraft.Rate this question:
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- 37.
Which electrical buses will be powered with a single engine generator operating?
- A.
Left and right
- B.
Essential and main
- C.
Main only
- D.
Essential only
Correct Answer
B. Essential and mainExplanation
The correct answer is "essential and main". This means that both the essential and main electrical buses will be powered by a single engine generator operating.Rate this question:
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- 38.
What is the minimum reduction gear box oil pressure in low speed ground idle (LSGI)?
- A.
45-50psi
- B.
70psi
- C.
100psi
- D.
50psi
Correct Answer
D. 50psiExplanation
The minimum reduction gearbox oil pressure in low speed ground idle (LSGI) is 50psi. This pressure is necessary to ensure proper lubrication and operation of the gearbox at low speeds. Any pressure lower than this could lead to insufficient lubrication and potential damage to the gearbox components.Rate this question:
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- 39.
What is the normal engine starting temperature (TIT)?
- A.
Any number below 750C
- B.
850-965C
- C.
750-830C
- D.
1077C
Correct Answer
C. 750-830CExplanation
The normal engine starting temperature (TIT) is typically between 750-830C. This range ensures that the engine reaches a suitable temperature for efficient combustion and operation. Temperatures below 750C may not provide enough heat for proper ignition, while temperatures above 830C could potentially cause damage to the engine components. Therefore, the correct answer is 750-830C.Rate this question:
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- 40.
What is the pre-load for the emergency brake accumulator?
- A.
1500psi +or-100psi
- B.
1000psi +or- 100psi
- C.
300psi +or- 100psi
- D.
None of the above
Correct Answer
B. 1000psi +or- 100psiExplanation
The correct answer is 1000psi +or- 100psi. This means that the pre-load for the emergency brake accumulator is 1000psi with a tolerance of plus or minus 100psi.Rate this question:
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- 41.
What is the normal reduction gear box oil pressure?
- A.
50-60psi
- B.
250psi
- C.
100psi for 30minutes maximum
- D.
150-250psi
Correct Answer
D. 150-250psiExplanation
The normal reduction gear box oil pressure is between 150-250psi. This range is considered standard for the oil pressure in a reduction gear box. It is important for the oil pressure to be within this range to ensure proper lubrication and functioning of the gear box. Higher or lower oil pressure levels can indicate potential issues or damage to the gear box.Rate this question:
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- 42.
What is the maximum starting temperature with one re-start allowed?
- A.
750C
- B.
975C
- C.
1077C
- D.
850C
Correct Answer
D. 850CExplanation
The maximum starting temperature with one re-start allowed is 850C. This means that if the temperature reaches 850C and needs to be restarted, it can be brought back to that same temperature. It cannot exceed 850C in any case.Rate this question:
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- 43.
What action should be taken if the starting temperature is between 831C and 850C?
- A.
There is no action required
- B.
Immediately stop start and evacuate the aircraft
- C.
Continue start until 965C
- D.
Continue between the temperatures and document the 781A aircraft forms
Correct Answer
D. Continue between the temperatures and document the 781A aircraft formsExplanation
If the starting temperature is between 831C and 850C, the correct action to be taken is to continue the start and document the 781A aircraft forms. This suggests that there is no immediate danger or issue with the starting temperature within this range, but it is still important to record the temperature for documentation purposes.Rate this question:
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- 44.
The APU generator will also power the main AC electrical bus as well as the essential when what condition is met?
- A.
The DC power switch is in battery
- B.
Its above 70F outside
- C.
The AC bus is tied
- D.
Bleed air is turned on
Correct Answer
C. The AC bus is tiedExplanation
When the AC bus is tied, the APU generator will power the main AC electrical bus as well as the essential. This means that the APU generator will provide electrical power to both the main AC electrical bus and the essential systems when the AC bus is connected or tied.Rate this question:
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- 45.
The #2 engine generator powers what AC electrical bus under normal operation?
- A.
Main
- B.
Right
- C.
Essential
- D.
Left
Correct Answer
C. EssentialExplanation
The #2 engine generator powers the Essential AC electrical bus under normal operation.Rate this question:
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- 46.
What is the normal engine oil quantity?
- A.
4 US quarts
- B.
4 US gallons
- C.
2 quarts low
- D.
4-12 US gallons
Correct Answer
D. 4-12 US gallons -
- 47.
During start and warm-up, what is the allowable reduction gear box oil pressure?
- A.
150-270psi
- B.
May exceed 250psi
- C.
Any number below 100psi
- D.
+or- 20
Correct Answer
B. May exceed 250psiExplanation
During start and warm-up, the allowable reduction gear box oil pressure may exceed 250psi.Rate this question:
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- 48.
What is the maximum reverse RPM limit?
- A.
94-102%
- B.
98-102%
- C.
92.5-100.5%
- D.
96-106%
Correct Answer
D. 96-106%Explanation
The correct answer is 96-106%. This range represents the maximum reverse RPM limit. Reverse RPM refers to the speed at which an engine can rotate in the opposite direction. The range of 96-106% indicates that the engine can safely operate in reverse at speeds between 96% and 106% of its maximum RPM.Rate this question:
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- 49.
The #3 engine generator powers what AC electrical bus under normal operation?
- A.
Right
- B.
Essential
- C.
Main
- D.
Left
Correct Answer
C. MainExplanation
The #3 engine generator powers the Main AC electrical bus under normal operation.Rate this question:
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- 50.
What is the normal ground idle RPM?
- A.
69-75.5%
- B.
94-102%
- C.
92.5-100.5%
- D.
96-106%
Correct Answer
B. 94-102%Explanation
The normal ground idle RPM is typically between 94-102%. This range represents the normal operating speed for the engine while it is idling on the ground. It is important for the RPM to be within this range to ensure proper engine performance and functionality.Rate this question:
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