M15c13

27問 • 9ヶ月前

ユーザ名非公開

通報

問題一覧

When is the starter circuit terminated:

when a self sustaining speed is reached

Selecting Start on the flight deck

sets starter circuit and ignition circuit ON

In a low voltage starter system, how is the starter terminated in the event of self sustaining speed not being reached?

By the cut- off time switch.

What is the main difference between the an AC and DC ignition circuit?

the trembler switch or (chopper circuit) is not required in AC circuit

Why must the igniter plugs be depth checked before fitment?

If too deep they will burn but if not deep enough they will not light the engine

If assistance from the starter were cut off below self accelerating speed the engine would

fail to accelerate to idle speed. this is known as a hang start.

All air starter have a run time limitation to prevent

overheating

Self starting speed is

The RPM at which the engine continues without external assistance.

According to the large gas turbine engines the starter motor is mainly:

air turbine

The start master switch on the cockpit

switches the starting system ‘ON’. On some aircraft will prepare the aircraft electrical system for the start operation

An Igniter Plug for a large gas turbine takes the form of :

surface discharge plug

An HEIU (high energy Ignition units )is rated in

joules

Turbine engine igniter plug operates

when starting or relighting the engine

Compared to an electrical starter, an air starter

has a better power to weight ratio

The type and power source for the starter:

varies in accordance with engine and aircraft Requirements

The electrical supply for starting system may be of

low voltage or high voltage

As soon as the starter has accelerated the compressor sufficiently to establish an airflow through the engine

the ignition is turned on, followed by the fuel.

Engagement and disengagement of Sprag Clutch in the starter is effected:

centrifugally.

starter generator operates as a generator

after the engine has reached a self-sustaining speed

The distribution of Air in the air Turbine Starter achieved by:

electrically operated valves, switch controlled, from the flight deck.

Air for starting may be obtained from

an auxiliary power unit

The Air supply to the starter control is regulated by

the starting valve.

Hung Start means

Engine lights up and reaches self-sustaining speed, but then the rpm is slow or fails to reach IDLE rpm

The discharge resistors are fitted to ensure that

any stored energy in the capacitor is dissipated within one minute of the system being switched off.

The correct Starting Sequence for gas turbine engine

starter, Ignition , fuel

On starting a jet engine, failure to light-up is indicated by

low engine speed.

The glow plug operates

by heat action

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mod5 training

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問題一覧

When is the starter circuit terminated:

when a self sustaining speed is reached

Selecting Start on the flight deck

sets starter circuit and ignition circuit ON

In a low voltage starter system, how is the starter terminated in the event of self sustaining speed not being reached?

By the cut- off time switch.

What is the main difference between the an AC and DC ignition circuit?

the trembler switch or (chopper circuit) is not required in AC circuit

Why must the igniter plugs be depth checked before fitment?

If too deep they will burn but if not deep enough they will not light the engine

If assistance from the starter were cut off below self accelerating speed the engine would

fail to accelerate to idle speed. this is known as a hang start.

All air starter have a run time limitation to prevent

overheating

Self starting speed is

The RPM at which the engine continues without external assistance.

According to the large gas turbine engines the starter motor is mainly:

air turbine

The start master switch on the cockpit

switches the starting system ‘ON’. On some aircraft will prepare the aircraft electrical system for the start operation

An Igniter Plug for a large gas turbine takes the form of :

surface discharge plug

An HEIU (high energy Ignition units )is rated in

joules

Turbine engine igniter plug operates

when starting or relighting the engine

Compared to an electrical starter, an air starter

has a better power to weight ratio

The type and power source for the starter:

varies in accordance with engine and aircraft Requirements

The electrical supply for starting system may be of

low voltage or high voltage

As soon as the starter has accelerated the compressor sufficiently to establish an airflow through the engine

the ignition is turned on, followed by the fuel.

Engagement and disengagement of Sprag Clutch in the starter is effected:

centrifugally.

starter generator operates as a generator

after the engine has reached a self-sustaining speed

The distribution of Air in the air Turbine Starter achieved by:

electrically operated valves, switch controlled, from the flight deck.

Air for starting may be obtained from

an auxiliary power unit

The Air supply to the starter control is regulated by

the starting valve.

Hung Start means

Engine lights up and reaches self-sustaining speed, but then the rpm is slow or fails to reach IDLE rpm

The discharge resistors are fitted to ensure that

any stored energy in the capacitor is dissipated within one minute of the system being switched off.

The correct Starting Sequence for gas turbine engine

starter, Ignition , fuel

On starting a jet engine, failure to light-up is indicated by

low engine speed.

The glow plug operates

by heat action