Fuel System/metering iclicker

Question 1

The general requirements for an aircraft engine include : efficiency, reliability, and a low weight-to-horsepower ratio. It also must:

Answer 1

have good fuel economy, high durability, and be capable of sustained high power output.

Question 2

The crankcase of an aircraft engine:

Answer 2

Is the foundation of the engine containing crankshaft bearings and cylinder pads

Question 3

Moveable counterweights reduce

Answer 3

the dynamie vibrations in an aircraft reciprocating engine.

Question 4

Some cylinder barrels are hardened by

Answer 4

Nitriding.

Question 5

Master rod bearings are generally what type of bearing?

Answer 5

Plain

Question 6

Full-floating piston pins are those which allow motion between the pin and

Answer 6

the piston and the small end of the connecting rod.

Question 7

The five events of a four stroke cycle engine, in the correct order of their occurrence, are

Answer 7

Intake, compression, ignition, power, exhaust.

Question 8

The actual power delivered to the propeller of an aircraft engine is called

Answer 8

brake horsepower.

Question 9

The horsepower developed in the cylinders of a reciprocating engine is known as the

Answer 9

Indicated horsepower.

Question 10

Ground boosted engine manifold pressure is generally considered to be any manifold pressure above

Answer 10

30 Inches Hg.

Question 11

When starting an engine equipped with a carburetor air heater, in what position should the heater control be placed?

Answer 11

Cola position filtered alr

Question 12

What directly regulates the speed of a turbocharger?

Answer 12

waste gate

Question 13

What carburetor component measures the amount of air delivered to the engine ?

Answer 13

venturi

Question 14

The throttle valve of float-type carburetors is located

Answer 14

Between the venturi and the engine

Question 15

Carburetor icing is most severe at

Answer 15

At temperatures belween 30 and 40 “F

Question 16

The economizer system in a floal-type carburetor

Answer 16

Increases the fuel air ratio at high power settings.

Question 17

The fuel level within the float chamber of a properly adjusted float-type carburetor will

Answer 17

slightly lower than the discharge nozzle outlet.

Question 18

Fuel is discharged for idling speeds on a float-type carburetor

Answer 18

from the idle discharge noze (orifice).

Question 19

During which stage of engine operation would you want the fuel metering system to supply the leanest mixture.

Answer 19

Cruise Rpm.

Question 20

All conditions being equal, a rich mixture burns faster than a lean mixture .

Question 21

A gravity fed fuel system must supply 175% of the take off fuel flow requirement.

Answer 21

False 150%

Question 22

During idle RPM the engine is primarily cooled

Answer 22

A rich fuel mixture

Question 23

Which of the following is used on a pressure carburetor to increase fuel flow to the engine on takeoff power or engine settings above 75%.

Answer 23

Economizer system.

Question 24

Which of the following fuel metering system has a fuel injector located near the cylinder head and uses venture and impact air to control the fuel flow.

Answer 24

Bendix RSA fuel injection system.

Question 25

According to FAR 23.997 there must be a fuel strainer or main filter between the fuel tank outlet and the inlet of the fuel metering device.

Answer 25

True