TRANSFORMERS – Air – DGCA Question Bank For Politics

Convert 14 volts DC to 26 volts AC

Reduce the A.C supply to 26 volts for some instruments.

Change 115 volts to 200 volts for engine instruments.

Convert 28 volts DC to 28 volts AC

varies its turns ratio automatically to maintain a constant output voltage with varying input voltage.

has only one coil which is used as both primary and secondary

will maintain a constant output frequency with a varying supply frequency

requires an inductive supply.

the same as the primary if the cable diameter is the same

greater than that on the primary.

less than on the primary

always the same as on the primary

twice as many turns on the secondary as on the primary

half as many turns on the secondary as on the primary

half as much current flowing in the secondary as in the primary

four times as many turns on the secondary as on the primary.

in proportion to the transformation ratio

in inverse proportion to the transformation ratio.

the same as the power input.

increased in a step up transformer

the current flow will be maximum.

the current flow will be negligible

the current will be in phase with the voltage

the voltage in the primary will be always greater than the secondary

an autotransformer.

a step up.

a step down.

a magnetic amplifier

Dgca Question Bank For Pilots