Question: The household energy meter is_______________?

• 1. an indicating instrument
• 2. a recording instrument
• 3. an integrating instrument
• 4. none of the above

Question: An ammeter is a______________?

• 1. secondary instrument
• 2. absolute instrument
• 3. recording instrument
• 4. integrating instrument

Question: The switch board instruments________________?

• 1. should be mounted in vertical position
• 2. should be mounted in horizontal position
• 3. either A or B
• 4. neither A nor B

Question: The pointer of an indicating instrument should be______________?

• 1. very light
• 2. very heavy
• 3. either A or B
• 4. neither A nor B

Question: Which of the following meters are not used on D.C. circuits______________?

• 1. Mercury motor meters
• 2. Commutator motor meters
• 3. Induction meters
• 4. None of the above

Question: In a portable instrument, the controlling torque is provided by_____________?

• 1. spring
• 2. gravity
• 3. eddy currents
• 4. all of the above

Question: In majority of instruments damping is provided by______________?

• 1. fluid friction
• 2. spring
• 3. eddy currents
• 4. all of the above

Question: The disc of an instrument using eddy current damping should be of________________?

• 1. conducting and magnetic material
• 2. non-conducting and magnetic material
• 3. conducting and non-magnetic material
• 4. none of the above

Question: The function of shunt in an ammeter is to______________?

• 1. by pass the current
• 2. increase the sensitivity of the ammeter
• 3. increase the resistance of ammeter
• 4. none of the above

Question: A potentiometer may be used for_________________?

• 1. measurement of resistance
• 2. measurement of current
• 3. calibration of ammeter
• 4. all of the above