ATR 42: Trivia Questions On Aircraft Maintenance! Quiz
Below is an Atr 42: Trivia Questions Quiz on Aircraft Maintenance! In the Airforce, it is expected that all the planes are always ready to go and pose no threats to the soldiers operating them, and this is made possible by the maintenance crew. Do take up the quiz and see if you are skilled enough to hold the position.
- 1.
THE MASTER WARNING SYSTEM IS TYPICALLY IDENTIFIED WITH?
- A.
Advisory
- B.
Emergency situation
- C.
Abnormal Situation
Correct Answer
B. Emergency situationExplanation
The master warning system is typically associated with an emergency situation. This system is designed to alert the pilot or operator of an aircraft or machinery about a critical or potentially dangerous condition that requires immediate attention. It serves as a vital tool to ensure the safety and prompt response in emergency situations, allowing the operator to take necessary actions to mitigate risks and prevent further damage or harm.Rate this question:
-
- 2.
WHAT IS THE FUNCTION OF THE EMERGENCY BATTERY WHILE THE ENGINE START ROTARY SELECTOR IS SET TO START OR CRANK?
- A.
It provides positive power to protect critical items from power transient. It never powers the starters.
- B.
During a battery start or when using the opposite GEN for a cross-start (on ground), it provides backup starter power if the MAIN BAT is weak.
- C.
During a battery start only, it provides backup starter power if the MAIN BAT is week.
Correct Answer
A. It provides positive power to protect critical items from power transient. It never powers the starters.Explanation
The emergency battery functions to provide positive power to protect critical items from power transients. It is not used to power the starters.Rate this question:
-
- 3.
STBY BUS OVRD PUSH BUTTON SET ON OVRD MEANS THAT:
- A.
DC STBY BUS and AC STBY BUS trough INV 1 are supplied from DC HOT MAIN BAT BUS.
- B.
DC STYBY BUS AND AC STBY BUS trough INV 1 are supplied from DC HOT EMER BUS.
- C.
DC STYBY BUS AND AC STBY BUS trough INV 1 are supplied from DC HOT MAIN BAT BUS.
Correct Answer
B. DC STYBY BUS AND AC STBY BUS trough INV 1 are supplied from DC HOT EMER BUS. -
- 4.
AT TAKE OF POWER, HOW MANY ENGINES CAN ONE ELECTRIC PUMP SUPPLY?
- A.
Both engines.
- B.
Jet pump supply is necessary for take off.
- C.
Only one
Correct Answer
C. Only oneExplanation
The correct answer is "Only one." This means that one electric pump can only supply power to one engine during takeoff. It implies that jet pump supply is not necessary for takeoff and only one engine requires the electric pump for power.Rate this question:
-
- 5.
HOW ARE THE OIL PRESSURE SURGES PREVENTED DURING COLD WEATHER START?
- A.
By a pressure regulating valve.
- B.
By a cold relief valve that bypasses the oil back to the tank.
- C.
A and B are correct
Correct Answer
B. By a cold relief valve that bypasses the oil back to the tank.Explanation
During cold weather starts, the oil in the engine may become thicker and more viscous, leading to increased oil pressure. This can cause surges and potentially damage the engine. To prevent this, a cold relief valve is used. This valve bypasses the oil back to the tank, reducing the pressure and ensuring that the oil flows smoothly through the engine. Therefore, option B is correct.Rate this question:
-
- 6.
AIRCRAFT ON GROUND, PWR MGT ON T.O., APTCS PUSH BUTTON ON, ATPCS IS ARMED IF?
- A.
Both PL above 65´ and both torque above 90%
- B.
Both PL above 65´ and both CL on max. RPM.
- C.
Both PL above 56` and both torque above 53%
Correct Answer
C. Both PL above 56` and both torque above 53%Explanation
The correct answer is "Both PL above 56` and both torque above 53%". This means that the Power Levers (PL) of both engines should be positioned above 56 degrees and the torque of both engines should be above 53%. This condition indicates that the engines are generating sufficient power and are ready for takeoff.Rate this question:
-
- 7.
WHEN THE PWR MGT IS SET INTAKE OFF POSITION, WHAT IS INDICATED BY THE TWO AMBER TARGET BUGS ON THE TORQUE GAUGES?
- A.
PWR MGT amber bugs are not indicating with PW MGT in TO position.
- B.
PWR MGT amber bugs are set by FDAU (flight data acquisition unit) to the reserve take off power setting (up trim value).
- C.
PWR MGT amber bugs are set by FDAU (flight data acquisition unit) to the normal take off power setting (take ff value).
Correct Answer
B. PWR MGT amber bugs are set by FDAU (flight data acquisition unit) to the reserve take off power setting (up trim value).Explanation
The two amber bugs on the torque gauges indicate the reserve take off power setting (up trim value) when the PWR MGT is set to the intake off position. This setting is determined and set by the FDAU (flight data acquisition unit).Rate this question:
-
- 8.
A/C ON GROUND, SUPPLIED BY BATTERY ONLY, BOTH CONDITION LEVERS IN SHUT OFF POSITION; THE FIRE TEST WILL OPERATE?
- A.
Engine fire light on CAP and in free handle, the red light in CL
- B.
Engine fire light on CAP and in free handle MASTER CAUTIONS and CRC in both loudspeakers.
- C.
Engine fire light on CAP and in fire handle, MASTER WARNINGS and CRC in CM1 loudspeaker.
Correct Answer
C. Engine fire light on CAP and in fire handle, MASTER WARNINGS and CRC in CM1 loudspeaker.Explanation
When the aircraft is on the ground and the engines are shut off, the fire test will only operate if the engine fire light is on the CAP (Control Annunciator Panel) and in the fire handle. In this scenario, the MASTER WARNINGS and CRC (Crew Rest Compartment) will be activated and heard in the CM1 (Crew Member 1) loudspeaker.Rate this question:
-
- 9.
T.O. INHI FUNCTION IS CANCELLED AUTOMATICALLY WHEN:
- A.
Gear is locked up
- B.
The first leg of landing gear and flaps are up.
- C.
Gear and flaps are up
- D.
The first leg of landing gear unlocks before retraction.
Correct Answer
D. The first leg of landing gear unlocks before retraction.Explanation
When the first leg of the landing gear unlocks before retraction, the T.O. INHI function is automatically cancelled. This means that the function is no longer active and any restrictions or limitations it imposed are lifted.Rate this question:
-
- 10.
IN CASE OF MAIN BAT OVHT WITH MAIN BAT CHG FAULT LIGHT ON, WHAT HAPPENS TO THE BUSSES POWERED BY THAT BATTERY?
- A.
They automatically transfer to EMER BAT
- B.
The HOT MAIN BAT BUS is lost and DC ESS BAT BUS is powered by DC BUS 1.
- C.
They will lose power when the battery goes below 19.5 V.
Correct Answer
B. The HOT MAIN BAT BUS is lost and DC ESS BAT BUS is powered by DC BUS 1.Explanation
When the main battery overheat with the main battery charge fault light on, the HOT MAIN BAT BUS is lost. In this situation, the DC ESS BAT BUS is powered by DC BUS 1.Rate this question:
-
- 11.
A/C ON GROUND AND ACW WXT PWR SELECTED ON, STARTING RH ENGINE AND PUTTING RH CL MAX RPM?
- A.
ACW BUS 1 and ACW BUS 2 are supplied by RH ACW GEN
- B.
ACW BUS 1 is still supplied by ACW EXT PWR ACW BUS 2 is supplied by ACW 2 GEN.
- C.
ACW BUS 1 and ACW BUS 2 are still supplied by ACW WXT PWR
Correct Answer
C. ACW BUS 1 and ACW BUS 2 are still supplied by ACW WXT PWRExplanation
The explanation for the given answer is that even though the RH engine is being started and the RH CL is at maximum RPM, the ACW BUS 1 and ACW BUS 2 are still being supplied by ACW WXT PWR. This means that the power source for these buses is still coming from the ACW WXT PWR instead of the RH ACW GEN or ACW EXT PWR.Rate this question:
-
- 12.
HOW IS THE LP VALVE AT THE OUTLET OF EACH TANK CONTROLLED?
- A.
Electrically by the related fire handle (DC BUS 1 or 2 for the motor 1, DC EMER BUS for the motor 2).
- B.
By the related CL.
- C.
Mechanically by the related fire handle.
Correct Answer
A. Electrically by the related fire handle (DC BUS 1 or 2 for the motor 1, DC EMER BUS for the motor 2).Explanation
The LP valve at the outlet of each tank is controlled electrically by the related fire handle. The motor 1 is controlled by DC BUS 1 or 2, while the motor 2 is controlled by DC EMER BUS.Rate this question:
-
- 13.
DURING START SEQUENCE, THE CROSS START SYSTEM:
- A.
Makes use of the opposite DC GEN to start.
- B.
Makes use of the MAIN BAT until 10% NH, THEN USES main bat AND OPPOSITE DC GEN (on ground only)
- C.
Makes use of the MAIN BAT until 10% NH.
Correct Answer
B. Makes use of the MAIN BAT until 10% NH, THEN USES main bat AND OPPOSITE DC GEN (on ground only)Explanation
The correct answer is "Makes use of the MAIN BAT until 10% NH, THEN USES main bat AND OPPOSITE DC GEN (on ground only)". This means that during the start sequence, the cross start system initially relies on the main battery (MAIN BAT) until the engine reaches 10% NH (N1 high). After reaching this threshold, the system switches to using both the main battery and the opposite DC generator (OPPOSITE DC GEN) for starting the engine. However, this method of starting the engine using both the main battery and the opposite DC generator is only applicable when the aircraft is on the ground.Rate this question:
-
- 14.
HOW IS A FAILD ENGINE DETECTED BY THE ATPCS?
- A.
When one torquemeter drops below 21%
- B.
When NP goes below 60% with the related power lever above flight idle.
- C.
When one pressure falls below 6 psi.
Correct Answer
A. When one torquemeter drops below 21%Explanation
The ATPCS (Automatic Thrust Power Control System) detects a failed engine when one torquemeter drops below 21%. This indicates that the engine is not producing the required amount of power.Rate this question:
-
- 15.
FIRE PROCEDURE ON LEFT ENGINE. AFTER AGENT 1 DISCHARGE, YOU SEE
- A.
Agent 1 DISCH on left engine + agent 2 DISCH on right engine.
- B.
Agent 1 DISCH on left engine only
- C.
Agent 1 DISCH on left engine + agent 1 DISCH on right engine.
Correct Answer
A. Agent 1 DISCH on left engine + agent 2 DISCH on right engine.Explanation
The correct answer is "Agent 1 DISCH on left engine + agent 2 DISCH on right engine." This means that after discharging agent 1 on the left engine, you should also discharge agent 2 on the right engine. This action is necessary to ensure that both engines are properly treated and any potential fire is extinguished.Rate this question:
-
- 16.
SMOKE DETECTORS ARE PROVIDED? =
- A.
In the avionics compt. The forward and after cargo compt.
- B.
In the cockpit, the cabin, the cargo compt.
- C.
In the cockpit, the avionics compt, and the cargo compt.
Correct Answer
A. In the avionics compt. The forward and after cargo compt.Explanation
Smoke detectors are provided in the avionics compartment, as well as in the forward and after cargo compartments. This is important for early detection of smoke or fire, allowing the crew to take necessary actions to prevent further damage or potential hazards. It is crucial to have smoke detectors in these areas to ensure the safety of the aircraft and its occupants.Rate this question:
-
- 17.
THE CROOS-FEED BLEED VALVE OPENS AUTOMATICALLY?
- A.
In flight single engine operation
- B.
On ground, both engines running
- C.
On ground, when BLEED AIR is supplied from a single engine.
Correct Answer
C. On ground, when BLEED AIR is supplied from a single engine.Explanation
The cross-feed bleed valve opens automatically on the ground when bleed air is supplied from a single engine. This means that when only one engine is running and providing bleed air, the valve will automatically open to allow the bleed air to be distributed to the necessary systems. This is important for maintaining proper airflow and pressure in the aircraft's systems while on the ground.Rate this question:
-
- 18.
WHAT DOES THE ¨COMPT TEMP¨ INDICATOR DISPLAY?
- A.
Only the compartment temperature of the selected side.
- B.
The compartment and duct temperature of the selected side.
- C.
The pack and duct temperature of the selected side
Correct Answer
B. The compartment and duct temperature of the selected side.Explanation
The "COMPT TEMP" indicator displays both the compartment and duct temperature of the selected side. This means that it provides information about the temperature in both the compartment and the duct on the selected side.Rate this question:
-
- 19.
IF A PACK VALVE IS CLOSED OR INOPERATIVE:
- A.
The other pack, supplies both compartments via PNEUMATIC CROSSFEED.
- B.
Hot air is still available from that pack via the TEMP CONTROL VALVE
- C.
The other pack supplies both compartments (cockpit, cabin) through the mixing camber.
Correct Answer
C. The other pack supplies both compartments (cockpit, cabin) through the mixing camber.Explanation
If a pack valve is closed or inoperative, the other pack will supply both compartments (cockpit, cabin) through the mixing chamber. This means that the air from the functioning pack will be distributed to both compartments, ensuring that both the cockpit and cabin receive the necessary supply of air. Additionally, hot air is still available from the functioning pack via the temp control valve, further contributing to the air supply in both compartments.Rate this question:
-
- 20.
HOW IS THE SYSTEM PROTECTED AGAINST EXCEEDING THE MAXIMUM CABIN DIFFERENTIAL PRESSURE?
- A.
Both outflow valves incorporate a manometric capsule (aneroid= to hold the valve open sufficiently to prevent overpressure.
- B.
Both outflow valves incorporate an electrically driven torque motor designed to fully open the valve
- C.
Only the electro pneumatic valve incorporates a manometric capsule to hold the valve open sufficiently to prevent overpressure.
Correct Answer
A. Both outflow valves incorporate a manometric capsule (aneroid= to hold the valve open sufficiently to prevent overpressure.Explanation
The system is protected against exceeding the maximum cabin differential pressure by incorporating a manometric capsule (aneroid) in both outflow valves. This capsule is designed to hold the valve open sufficiently to prevent overpressure.Rate this question:
-
Back to top