Electrical Engineering Quiz

Which of the following is a unit of electrical pressure?

• Watt

• Ampere

• ohm

• Volt

In resistance color coding, red color is assigned to what value?

• 3

• 8

• 2

• 1

What is another name for a secondary cell?

• Wet cell

• Storage cell

• Dry cell

• Disposable cell

How is a voltmeter connected in a circuit?

• Connect in short circuit across the load

• Connect in shunt across the load

• Connect in series across the load

• Connect in open circuit with the load

In the American Wire Gauge, as the number of gauge wire increases, the wire diameter _.

• Increases

• decreases

• does not change

• does change

A generator may lost residual magnetism because of _.

• vibration

• over-excitation

• heating

• varying loads

A meter whose needle is initially at the center.

• Dynamometer

• Iron vane meter

• Galvanometer

• Voltmeter

A universal motor can be operated on which of the following supply currents?

• dc current only

• ac or dc currents

• 3-phase ac current only

• ac current only

A 6-volt lead-acid battery has an internal resistance of 0.01 ohm. How much current will flow if the battery has a short circuit?

• 60 A

• 600 A

• infinity

• zero

An electric iron takes 3- 1/2 A. If the heating element has a resistance of 40 ohms, what is its power consumption?

• 0.45 kW

• 0.49 kW

• 0.35 kW

• 0.51 kW