Ground ops

Question 1

(Refer to Figure 50.) Identify the signal to engage rotor on a rotorcraft

Answer 1

3

Question 2

During starting of a turbine powerplant using a compressed air starter, a hung start occurred. Select the proper procedure

Answer 2

Shut the engine down

Question 3

Characteristics of a detonation are

Answer 3

Rapid rise in cylinder pressure, excessive cylinder had temperature, and a decrease in engine power

Question 4

if a hot start occurs during starting of a turbine powerplant, what is the likely cause?

Answer 4

The fuel/air mixture was exceedingly rich

Question 5

If a radial engine has been shut down for more than 30 minutes, the propeller should be rotated through at least two revolutions to

Answer 5

Check for hydraulic lock

Question 6

When first starting to move an aircraft while taxiing, it is important to

Answer 6

Test the brakes

Question 7

A person should approach or leave a helicopter in the pilot’s field of vision whenever the engine is running in order to avoid

Answer 7

The tail rotor

Question 8

How are aviation fuels, which passes greater antiknock qualities than 100 octane, classified?

Answer 8

By performance numbers

Question 9

When stopping a nose wheel type airplane after taxiing (or towing) the nose wheel should be left

Answer 9

Pointed straight ahead

Question 10

If an engine fire develops during the starting procedures the first step you should take in the extinguishing the fire is

Answer 10

Continue cranking to start the engine & blow out the fire.

Question 11

Why is the ethylene dibromide added to aviation gasoline?

Answer 11

To scavenge lead oxide from the cylinder combustion chambers.

Question 12

The most important condition to be monitored during start after fuel flow begins in a turbine engine is the

Answer 12

EGT, TIT, or ITT

Question 13

The color of 100LL fuel is

Answer 13

Blue

Question 14

Jet fuel number identifiers are

Answer 14

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

Question 15

When starting and ground operating an aircraft’s engine. the aircraft should be positioned to head into the wind primarily

Answer 15

For engine cooling putpose

Question 16

When taxiing (or towing) an aircraft, an alternating red and green light from the control tower means

Answer 16

OK to proceed but use extreme caution

Question 17

Tetraethyl lead is added to aviation gasoline to

Answer 17

Improve the gasoline’s performance in the engine.

Question 18

Which of the following conditions has the most potential for causing engine damage when starting or attempting to start a turbine engine?

Answer 18

Hot start

Question 19

When taxiing an airplane with a quartering tailwind, the elevators and

Answer 19

Upwind aileron should be held in the down position

Question 20

A hung start in a jet engine is often caused by

Answer 20

The starter cutting off too soon.

Question 21

How is a flooded engine, equipped, with a float-type carburetor, cleared of excessive fuel?

Answer 21

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

Question 22

Weathervaning tendency is greatest when taxiing

Answer 22

A tailwheel-type airplane in a direct crosswind

Question 23

1) Jet fuel is higher viscosity than aviation gasoline and therefore holds contaminants better.
2) Viscosity has no relation to contamination of fuel.
Regarding the above statements,

Answer 23

Only no.1 is true

Question 24

The priming of a fuel injected horizontally opposed engine is accomplished by placing the fuel control lever in the

Answer 24

FULL-RICH position

Question 25

What must accompany fuel vaporization?

Answer 25

An absorption of heat

Question 26

A fuel that vaporizes too readily may cause

Answer 26

Vapor lock

Question 27

Both gasoline and kerosene have certain advantages for use as turbine fuel. Which statement is true in reference to the advantages of each?

Answer 27

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

Question 28

When taxiing (or towing) an aircraft, a flashing red light from the control tower means

Answer 28

Moves clear of the runaway/taxiway immediately

Question 29

When approaching the rear of an idling turbojet or turbofan engine, the hazard area extends aft of the engine approximately

Answer 29

100 feet

Question 30

Which of the following is the most satisfactory extinguishing agent for use on a carburetor or intake fire?

Answer 30

Carbon dioxide

Question 31

Which statement below reflects a typical requirement when towing some aircraft?

Answer 31

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

Question 32

(Refer to Figure 51.) Which marshaling signal should be given if a taxiing aircraft is in imminent danger of striking an object?

Answer 32

3

Question 33

What affect, if any, will aviation gasoline mixed with jet fuel have on a turbine engine?

Answer 33

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

Question 34

The main differences between grades 100 and 100LL

Answer 34

Lead content and color

Question 35

When approaching the front of an idling ket engine, the hazard area extends forward of the engine approximately

Answer 35

25

Question 36

Which statement(s) is/are true regarding tie down of small aircraft?

1) Manila (hemp) rope has a tendency to stretch when it gets wet.
2) nylon or dacron rope is preferred to manila rope.
3) The aircraft should be headed downwind in order to eliminate or minimize wing lift.
4) Leave the nose wheel or tail wheel unlocked?

Answer 36

2