Explore topic-wise MCQs in Electrical Engineering Questions.

CFL means

For welding aluminium alloys, the electrodes used are

Which among the following is mechanical braking?

The metal which can be extracted from its ore by the method of electrolysis is /are

When sulfate molecules reacts with the water then

According to the Faraday’s first laws of electrolysis, the mass of substance liberated during electrolysis is

The efficiency of heating is more for

The core type induction furnace and the coreless type induction furnace are

The heat can be transferred from high temperature body to low temperature body by

Direct resistance heating method is used in

Heat in water and air is transferred by

For improving the power factor of coreless type induction furnace,

In induction heating, the heat produced is

In direct core type induction furnaces, the leakage reactance of the magnetic circuit is

The electrodes used in carbon arc welding are made up of

The current efficiency is defined as the ratio of

In radiation mode of heat transfer, the heat is transferred from one body to other

AC series motors are most suitable for

The sun’s rays reach the earth without heating the atmosphere, this is due to

In indirect core type of furnace, the element is heated by induction, which transfer the heat to the charge by

High frequency eddy current heating is used for

The inside wall of fluorescent tube is coated with

The rate of heat produced by dielectric heating is increased by

Arc welding is also known as

Throwing power is the ability of the electrolyte to produce

Reduction factor of a source of light is the ratio of its

The range of visible radiation lies between

According to second law of illumination, the illumination at any point on an inclined surface is

According to the first law of illumination, the illumination of a surface due to a source of light is

The artificial source of light is

The polar curves are used to find out the

Nitrogen is added with the argon in an incandescent lamp to

In diesel electric drive,

The energy required for refining of gold in kWh / tone is about

In speed time curve for trains, the notching period is

In internal combustion engine drive, a gear box is

In urban or city train service, the

The example of plastic welding is

The motor which is most suitable for the traction work is / are

After welding, the welded parts retain which properties of the metal?

Three phase induction motor is not suitable for traction purpose because

The fusion welding is also known as

The illumination due to good daylight is approximately equal to

Lux is the unit of

The suitable lamps for street lighting are

The glare can be reduced by

The propulsion of heavy vehicle is called

Flood lighting is used for

Pantograph collector is used in railways where the train runs at 100 to 130 kmph. Which among the following is true about pantograph collector?

The steam engine drive and electric traction drive