Energy Conversion

A commulatively compounded motor does not run at dangerous speed at light loads because of the presence of

DC shunt motors are used in those applications where _____ is required.

Galvanic cell is the other name of

For the same rating _____ motor has the highest starting torque.

The voltage regulation of an alternator with a power factor of 0.8 lagging is _____ at unity power factor.

Which is the most suitable for punch presses?

In a vacuum cleaner, _____ motor is generally used.

A type of secondary cell that can be recharged but with an electrolyte that cannot be refilled.

Silver-cadmium is a secondary cell with a nominal open-circuit voltage of

Which is a variable speed motor?

The most commonly used method of speed control of a dc motor is by varying

_____ give the relative activity in forming ion charges for some of the chemical elements

The ac armature winding of an alternator is

The air-gap in an alternator is _____ in an induction machine.

Nickel-iron cell is a secondary cell with a nominal open-circuit voltage output of 1.2 and is otherwise known as

A dc series motor is suitable for

Which is the most suitable motor for elevators?

The voltage output of a cell depends on

The alternators driven by _____ do not have a tendency to hunt.

Damper windings are used in alternators to