Ground Operations And Servicing

Question 1

During starting of a turbine powerplant using a compresses air starter, a hung start occurred. Select the proper produce.
A. Shut off the fuel.
B. Re-engage the starter.
C. Shut the engine down.

Answer 1

C. Shut the engine down.

Question 2

A hung start in a jet engine is often caused by;
A. Malfunctions in the ignition system.
B. The starter cutting off too soon.
C. Shut the engine down.

Answer 2

C. Shut the engine down.

Question 3

Which statement below reflects a typical requirement when towing some aircraft?
A. Discharge all hydraulic pressure to prevent accidental operation of the nose wheel steering mechanism.
B. Tailwheel aircraft must be towed backwards.
C. If the aircraft has a steerable nose wheel, the torque-link lock should be set to full swivel.

Answer 3

C. If the aircraft has a steerable nose wheel, the torque-link lock should be set to full swivel.

Question 4

Which statement is true regarding tiedown of small aircraft?
A. The aircraft should be headed downwind inn order to eliminate or minimize wing lift.
B. Leave the nose wheel or tailwheel unlocked.
C. Nylon or Dacron rope is preferred to Manila rope.

Answer 4

C. Nylon or Dacron rope is preferred to Manila rope.

Question 5

When approaching the front of an idling het engine, the hazard area extends forward of the engine approximately:
A. 10 feet.
B. 15 feet.
C. 25 feet.

Answer 5

C. 25 feet.

Question 6

Which of the following is the most satisfactory extinguishing agent for use on a carburetor or intake fire?
A. Dry chemical.
B. A fine, water mist.
C. Carbon dioxide.

Answer 6

C. Carbon dioxide.

Question 7

(Refer to the Figure 50) identify the signal to engage rotor on a rotorcraft.
A. 1
B. 3
C. 2

Answer 7

B. 3

Question 8

If a radial engine has been shut down for more than 30 minutes, the propeller should be rotated through at least two revolutions to:
A. Check for hydraulic lock.
B. Check for leaks.
C. Prime the engine.

Answer 8

A. Check for hydraulic lock.

Question 9

The priming of a fuel injected horizontally opposed engine is accomplished by placing the fuel control lever in the:
A. IDLE-CUTOFF position.
B. AUTO-RICH position.
C. FULL-Rich position.

Answer 9

C. FULL-Rich position.

Question 10

The most important condition to be monitored during start after fuel flow begins in turbine engine is the:
A. EGT,TIT, or ITT.
B. RPM.
C. Oil pressure.

Answer 10

A. EGT,TIT, or ITT.

Question 11

Which of the following conditions has the most potential for causing engine damage when starting or attempting to start a turbine engine?
A. Hung start.
B. Cold start.
C. Hot start.

Answer 11

C. Hot start.

Question 12

How is a flooded engine, equipped with a float type carburetor, cleared of excessive fuel?
A. Crank the engine with the starter or by hand, with the mixture control in cutoff, ignition switch off, and the throttle fully open, until fuel charge has been cleared.
B. Turn off the fuel and ignition, discontinue the starting attempt until the fuel has cleared.
C. Crank the engine with the starter or by hand, with the mixture control in cutoff, ignition switch on, and the throttle fully open, until fuel charge has been cleared.

Answer 12

A. Crank the engine with the starter or by hand, with the mixture control in cutoff, ignition switch off, and the throttle fully open, until fuel charge has been cleared.

Question 13

(Refer to Figure 51) Which marshaling signal should be given if a taxing aircraft is in imminent danger of striking and object?
A. 1 or 3.
B. 2.
C. 3.

Answer 13

C. 3.

Question 14

Generally, when an induction fire occurs during starting of a reciprocating engine, the first course of action should be to;
A. Discharge carbon dioxide form the fire extinguisher into the air intake of the engine.
B. Continue cranking and start the engine if possible.
C. Close the throttle.

Answer 14

B. Continue cranking and start the engine if possible.

Question 15

If a fire develops in an engine during the starting procedure, you should:
A. Discontinue the start attempt and allow the fireguard to extinguish the fire.
B. Continue cranking to start the engine and extinguish the fire.
C. Continue cranking and allow the fireguard to extinguish the fire.

Answer 15

B. Continue cranking to start the engine and extinguish the fire.

Question 16

When starting and found operating an aircraft’s engine, the aircraft should be positioned to head into the wind primarily:
A. To aid in achieving and maintaining the proper air flow into the engine induction system.
B. For engine cooling purposes.
C. To help cancel out engine torque effect.

Answer 16

B. For engine cooling purposes.

Question 17

When approaching the rear of an idling turbojet or turbofan engine, the hazard area extends aft of the engine approximately:
A. 200 feet.
B. 100 feet.
C. 50 feet.

Answer 17

B. 100 feet.

Question 18

If a hot start occurs during starting of a turbine powerplant, what is the likely cause?
A. The starting unit overheated.
B. The ambient temperature was too high (over 100*F)
C. The fuel/air mixture was excessively rich.

Answer 18

C. The fuel/air mixture was excessively rich.

Question 19

What effect, if any, will aviation gasoline mixed with jet fuel have on a turbine engine?
A. No appreciable effect.
B. The tetraethyl lead in the gasoline forms deposits on the turbine blades.
C. The tetraethyl lead in the gasoline forms deposits on the compressor blades.

Answer 19

B. The tetraethyl lead in the gasoline forms deposits on the turbine blades.

Question 20

(1) jet fuel is of higher viscosity than aviation gasoline and therefore holds contaminants more readily.
(2) viscosity has no relation to contaminants of fuel.
A. Only 1 is true.
B. Both 1 and 2 are true.
C. Neither 1 nor 2 is true.

Answer 20

A. Only 1 is true.

Question 21

When towing a large aircraft:
A. A person should be in the cockpit to watch for obstructions.
B. Persons should be stationed at the nose, each wingtip, and the empennage at all times.
C. A person should be in the cockpit to operate the brakes.

Answer 21

C. A person should be in the cockpit to operate the brakes.

Question 22

Weathervaning tendency is greatest when taxiing:
A. Both a nose wheel and tailwheel-type airplanes in a quartering tailwind.
B. A tailwheel-type airplane in a direct cross wind.
C. A nosewheel-type airplane in a quartering headwind.

Answer 22

B. A tailwheel-type airplane in a direct cross wind.

Question 23

When taxiing an airplane with a quartering tailwind, the elevators and:
A. Upwind aileron should be held in the up position.
B. Upwind aileron should be held in the down position.
C. Both ailerons should be kept in the neutral position.

Answer 23

B. Upwind aileron should be held in the down position.

Question 24

When taxiing (or towing) an aircraft, a flashing red light from the control tower means:
A. Stop and wait for a green light.
B. Move clear off the runway/taxiway immediately.
C. Return to starting point.

Answer 24

B. Move clear off the runway/taxiway immediately.

Question 25

A person should approach or leave a helicopter in the pilot’s feild of vision whenever the engine is running in order to avoid: A. The tail rotor. B. The main rotor. C. Blowing dust or debris caused by rotor downwash.

Answer 25

A. The tail rotor.

Question 26

When taxiing (or towing) an aircraft, a flashing white light from the control tower means: A. Move clear of the runway/taxiway immediately/ B. Ok to proceed but use extreme caution. C. Return to starting point.

Answer 26

C. Return to starting point.

Question 27

When taxiing (or towing) an aircraft, an alternating red and green light from the control tower means: A. Move clear of the runway/taxiway immediately/ B. Ok to proceed but use extreme caution. C. Return to starting point.

Answer 27

B. Ok to proceed but use extreme caution.

Question 28

When stopping a nosewheel-type airplane after taxiing, the nosewheel should be left: A. Unlocked and pointed straight ahead. B. Turned at a small angle towards up hill if the parking area is not perfectly flat. C. Pointed straight ahead.

Answer 28

C. Pointed straight ahead.

Question 29

When first to move an aircraft while taxiing, it is important to: A. Test the brakes. B. Closely monitor the instruments. C. Notify the control tower.

Answer 29

A. Test the brakes.

Question 30

The color of 100LL fuel is, A. Blue. B. Colorless or straw. C. Red.

Answer 30

A. Blue.

Question 31

How are aviation fuels, which posses greater antiknock qualities than 100 octane, classified? A. According to the milliliters of lead. B. By reference to normal heptane. C. By performance numbers.

Answer 31

C. By performance numbers.

Question 32

Why is ethylene dibromide added to aviation gasoline? A. To remove zinc silicate deposits from the spark plugs. B. To scavenge lead oxide from the cylinder combustion chambers. C. To increase the antiknock rating of the fuel.

Answer 32

B. To scavenge lead oxide from the cylinder combustion chambers.

Question 33

Both gasoline and kerosene have certain advantages for use as turbine fuel. Which statement is true in reference to the advantages of each? A. Kerosene has higher heat energy/value per unit weight than gasoline. B. Gasoline has a higher heat energy/value per unit volume than kerosene. C. Kerosene has a higher heat energy/value per unit volume than gasoline.

Answer 33

C. Kerosene has a higher heat energy/value per unit volume than gasoline.

Question 34

What must accompany fuel vaporization? A. An absorption of heat. B. A decrease in vapor pressure. C. A reduction in volume.

Answer 34

A. An absorption of heat.

Question 35

Characteristics of detonation are: A. Cylinder pressure remains the same, excessive cylinder head temperature, and a decrease in engine power. B. Rapid rise cylinder pressure, excessive cylinder head temperature, and a decrease in engine power. C. Rapid rise in cylinder pressure, cylinder head temperature normal, and a decrease in engine power.

Answer 35

B. Rapid rise cylinder pressure, excessive cylinder head temperature, and a decrease in engine power.

Question 36

A fuel that vaporizes too readily may cause: A. Hard starting. B. Detonation. C. Vapor lock.

Answer 36

C. Vapor lock.

Question 37

Jet fuel number identifiers are: A. Performance numbers to designate the volatility of the fuel. B. Performance numbers and are relative to the fuel’s performance in the aircraft engine. C. Type numbers and have no relation to the fuel’s performance in the aircraft engine.

Answer 37

C. Type numbers and have no relation to the fuel’s performance in the aircraft engine.

Question 38

The main differences between grades 100 and 100LL fuel are: A. Volatility and lead content. B. Volatility, lead content, and color. C. Lead content and color.

Answer 38

C. Lead content and color.

Question 39

Characteristics of aviation gasoline are: A. High heat value, high volatility. B. High heat value, Low volatility. C. Low heat value, low volatility.

Answer 39

A. High heat value, high volatility.

Question 40

Tetraethyl lead is added to aviation gasoline to: A. Retard the formation of corrosives. B. Improve the gasoline’s performance in the engine. C. Dissolve the moisture in the gasoline.

Answer 40

B. Improve the gasoline’s performance in the engine.

Question 41

A fuel that does not vaporize readily enough can cause: A. Vapor lock. B. Detonation. C. Hard starting.

Answer 41

C. Hard starting.