Piston Engines - Fuel Injection: DGCA Technical General questions

Question 1

The fuel manifold valve:

Accepted Answer

distributes fuel continuously to all of the cylinders continuously.

Answer

meters the amount of fuel delivered to the engine in proportion to the amount of air being delivered to the engine.

Answer

distributes fuel to each cylinder in the correct firing order.

Answer

is kept entirely separate from the priming system.

Question 2

The discharge nozzles of a fuel injected engine are matched to:

Accepted Answer

the engine they are fitted to and to the nozzles on the other cylinders.

Answer

supply exactly the same amounts of fuel as each other.

Answer

the type of engine they are fitted to.

Answer

the octane rating of the fuel supply.

Question 3

The engine driven fuel pump supplies:

Accepted Answer

more fuel than is required by the engine; the excess fuel is recycled.

Answer

the exact amount of fuel required for all running conditions.

Answer

the exact amount of fuel required for all running and starting conditions.

Answer

more fuel than is required by the engine, the excess being used as priming fuel.

Question 4

The Common Rail:

Accepted Answer

is, in effect, a reservoir of high pressure fuel

Answer

is, in effect, a reservoir of low pressure fuel.

Answer

is a device common to both the fuel and lubrication systems.

Answer

is a device common to both the ignition and lubrication systems.

Question 5

When an engine is fitted with a fuel injection system:

Accepted Answer

a separate priming system is not required.

Answer

it does not require priming.

Answer

a separate priming system must be fitted.

Answer

priming fuel originates from the excess supplied from the engine driven pump.

6 more questions in this chapter