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Pistons quiz 2

Total questions: 14

Worksheet time: 7mins

Name
Class
Date
1.

Most carburetors use this device to draw fuel from the bowl to the fuel nozzle.

a)

Float valve

b)

Butterfly valve

c)

Venturi

d)

Mixture control

2.

In a float type carburetor, the fuel level is maintained

a)

Level with the inlet fuel filter

b)

Just below the outlet of the accelerator pump nozzle

c)

Just below the main fuel nozzle (1/8”)

d)

Even with the idle jet

3.

A Venturi works by increasing airspeed through the carburetor and

a)

Increasing the pressure

b)

Decreasing the resistance

c)

Decreasing the pressure

d)

Increasing the temperature

4.

What type of bearing must be lubricated with oil under pressure

a)

Roller bearings

b)

Needle bearings

c)

Plain bearings

d)

Thrust bearings

5.

In a high wing piston powered aircraft, fuel is usually delivered to a float type carb using

a)

An engine drive pump

b)

An electric pump

c)

Gravity

d)

A motive flow pump

6.

A carburetor that does not use a float chamber is a

a)

Side draft carburetor

b)

Pressure carburetor

c)

Turbocharged carburetor

d)

Fuel injected carburetor

7.

The device in a carburetor used to manually adjust the fuel flow is

a)

Accelerator pump

b)

Float valve

c)

Mixture control valve

d)

Butterfly valve

8.

How do you stop an aircraft engine

a)

Turn ignition ( mags) OFF

b)

Cut off air to the carburetor

c)

Cut off fuel to the main and idle fuel nozzels

d)

Switch OFF the left mag

9.

A “ spin on “ type oil filter must be

a)

Installed while the engine is warm

b)

Torqued correctly and safety wired

c)

Must be turned anticlockwise when being installed

d)

Must only be installed hand tight.

10.

In a dry sump type oil system

a)

There must be a pressure pump and a scavenge pump.

b)

an oil separator must be installed

c)

Only multi grade oil may be used

d)

The oil tank must be pressurized

11.

During the break in period on a piston engine

a)

Only multi grade oil may be used

b)

Mineral oil must be used

c)

Synthetic oil must be used

d)

Straight grade oils may only be used.

12.

When the butterfly valve is opened in a float type carburetor, what device ensures the smooth operation of the engine

a)

The fuel pump

b)

The acceleratior pump

c)

The float valve

d)

The Venturi

13.

The idle mixture screw adjusts the amount of fuel flowing through the

a)

Mail fuel nozzle

b)

The float valve

c)

The mixture control

d)

The idle fuel nozzle

14.

The pressure drop in a carburetor Venturi can also lead to possible

a)

Excess fuel flow

b)

Ice accumulation

c)

Build up of sediment

d)

Accumulation of fuel “ varnish “