Question: The chemical effect of current is used in ______________?

• 1. D.C. ammeter hour meter
• 2. D.C. ammeter
• 3. D.C. energy meter
• 4. none of the above

Question: For handling greater currents induction wattmeters are used in conjunction with______________?

• 1. potential transformers
• 2. current transformers
• 3. power transformers
• 4. either of the above

Question: is an instrument which measures the insulation resistance of an electric circuit relative to earth and one another_______________?

• 1. Tangent galvanometer
• 2. Meggar
• 3. Current transformer
• 4. None of the above

Question: Induction type single phase energy meters measure electric energy in_______________?

• 1. kW
• 2. Wh
• 3. kWh
• 4. VAR

Question: A moving-coil permanent-magnet instrument can be used as flux-meter_____________?

• 1. by using a low resistance shunt
• 2. by using a high series resistance
• 3. by eliminating the control springs
• 4. by making control springs of large moment of inertia

Question: Most common form of A.C. meters met with in every day domestic and industrial installations are______________?

• 1. mercury motor meters
• 2. commutator motor meters
• 3. induction type single phase energy meters
• 4. all of the above

Question: An induction meter can handle current up to_____________?

• 1. 10 A
• 2. 30 A
• 3. 60 A
• 4. 100 A

Question: __________ instruments are those which measure the total quantity of electricity delivered in a particular time ?

• 1. Absolute
• 2. Indicating
• 3. Recording
• 4. Integrating

Question: Resistances can be measured with the help of_______________?

• 1. wattmeters
• 2. voltmeters
• 3. ammeters
• 4. ohmmeters and resistance bridges

Question: The use of _________ instruments is merely confined within laboratories as standardizing instruments?

• 1. absolute
• 2. indicating
• 3. recording
• 4. integrating