DC Electrics - DC Motors: DGCA Technical General questions

Question 1

Rotary actuators are used for:

Accepted Answer

Operation of fuel cocks

Answer

Undercarriage retraction

Answer

Centre of gravity assessment

Answer

Movement of control surfaces

Question 2

Actuator normal travel is controlled by:

Accepted Answer

Limit microswitches

Answer

A clutch

Answer

Mechanical indicators

Answer

Mechanical stops

Question 3

On a twin engined DC aircraft having two DC generators load sharing is achieved by:

Accepted Answer

An equalizing circuit to sense the difference and equalize the voltages of the two generators

Answer

Equalizing engine RPMs

Answer

Synchronizing relays and voltage coil tuners

Answer

An equalizing circuit to sense the difference and equalize the field currents of the two generators

Question 4

Pilots are informed of rotary actuator positions by:

Accepted Answer

Lights or doll's eye indicators

Answer

Non-return valves

Answer

Travel indicators

Answer

Veger counters

Question 5

Press-to-test lights are used:

Accepted Answer

To indicate to the pilot that the circuit has power and is complete

Answer

To control the movement of a rotary actuator

Answer

To indicate to the pilot that the circuit has operated

Answer

Only to indicate to the pilot that the equipment has malfunctioned

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