Question 1

Measurement range of a voltmeter can be extended by using:

Accepted Answer

A) high current resistance 
B) high series resistance 
C) low shunt resistance 
D) low series resistance 
A) high current resistance 
B) high series resistance 
C) low shunt resistance 
D) low series resistance B

Question 2

The major advantage of electromagnet type meter over a permanent magnet meter is

Accepted Answer

A)  the electromagnet meter costs much less 
B) the permanent magnet meter has a more sluggish coil 
C)  the electromagnet meter need not be aligned with the earth's magnetic field 
D)  the electromagnet meter is more rugged 
A)  the electromagnet meter costs much less 
B) the permanent magnet meter has a more sluggish coil 
C)  the electromagnet meter need not be aligned with the earth's magnetic field 
D)  the electromagnet meter is more rugged D

Question 3

_____ instruments are those which measure the total quantity of electricity delivered in a particular time.

Accepted Answer

A) absolute 
B) indicating 
C) recording 
D) integrating 
A) absolute 
B) indicating 
C) recording 
D) integrating D

Question 4

Which of the following essential features is possessed by an indicating instrument ?

Accepted Answer

A) deflecting device 
B) controlling device 
C) damping device 
D) all of the above 
A) deflecting device 
B) controlling device 
C) damping device 
D) all of the above

Question 5

The spring material used in a spring control device should have the following property.

Accepted Answer

A) should be non-magnetic 
B) most be of low temperature co-efficient 
C) should have low specific resistance 
D) all of the above 
A) should be non-magnetic 
B) most be of low temperature co-efficient 
C) should have low specific resistance 
D) all of the above

Question 6

The deflection torque can be produced by:

Accepted Answer

A) gravity control 
B) spring control 
C) air friction 
D) magneitcally 
A) gravity control 
B) spring control 
C) air friction 
D) magneitcally

Question 7

A voltmeter should have

Accepted Answer

A)  low internal resistance 
B)  high internal resistance 
C)  electrostatic plates 
D)  a sensitive amplifier 
A)  low internal resistance 
B)  high internal resistance 
C)  electrostatic plates 
D)  a sensitive amplifier

Question 8

An ammeter requires a change of 4A in its coil to produce a pointer deflection of 8mm then its sensitivity is

Accepted Answer

A) 2.5 mm/a 
B) 2.0 mm/a 
C) 0.5 mm/a 
D) none of the above 
A) 2.5 mm/a 
B) 2.0 mm/a 
C) 0.5 mm/a 
D) none of the above

Question 9

Which of the following voltmeter have least power consumption:

Accepted Answer

A) moving iron 
B) hot-wire 
C) electrostatic 
D) induction type 
A) moving iron 
B) hot-wire 
C) electrostatic 
D) induction type

Question 10

The change in the direction of a compass needle, when a current carrying wire is brought near, is called

Accepted Answer

A)  electromagnetic deflection 
B)  electroscopic force 
C) magnetic force 
D)  electrostatic force 
A)  electromagnetic deflection 
B)  electroscopic force 
C) magnetic force 
D)  electrostatic force

Question 11

A _____ device prevents the oscillation of the moving system and enables the latter to reach its final position quickly

Accepted Answer

A) deflecting 
B) controlling 
C) damping 
D) any of the above 
A) deflecting 
B) controlling 
C) damping 
D) any of the above

Question 12

Which of the following instruments indicate the instantaneous value of the electrical quantity being measured at the time at which it is being measured ?

Accepted Answer

A) absolute instruments 
B) indicating instruments 
C) recording instruments 
D) integrating instruments 
A) absolute instruments 
B) indicating instruments 
C) recording instruments 
D) integrating instruments

Question 13

The ratio and phase angle errors in potential transformer may be reduced by

Accepted Answer

A) increasing the exciting current 
B) increasing the resistance and leakage reactance in the transformer 
C) by not employing turns compensation 
D) none of the above 
A) increasing the exciting current 
B) increasing the resistance and leakage reactance in the transformer 
C) by not employing turns compensation 
D) none of the above

Question 14

The use of _____ instruments is merely confined within laboratories as standardizing instruments.

Accepted Answer

A) absolute 
B) indicating 
C) recording 
D) integrating 
A) absolute 
B) indicating 
C) recording 
D) integrating

Question 15

Which of the following instruments have least torque/weight ratio:

Accepted Answer

A) dynamometer type 
B) pmmc 
C) attraction type moving iron 
D) repulsion type moving iron 
A) dynamometer type 
B) pmmc 
C) attraction type moving iron 
D) repulsion type moving iron

Question 16

For increasing the range of an ammeter, connect:

Accepted Answer

A) a high value resistance in series with the ammeter coil 
B) a high value resistance in parallel with the ammeter coil 
C) a low value resistance in parallel with the ammeter coil 
D) a low value resistance in series with the ammeter coil 
A) a high value resistance in series with the ammeter coil 
B) a high value resistance in parallel with the ammeter coil 
C) a low value resistance in parallel with the ammeter coil 
D) a low value resistance in series with the ammeter coil

Question 17

Fluid friction damping can be used in

Accepted Answer

A) horizontally mounted instruments 
B) vertically mounted instruments 
C) both horizontally mounted instruments and vertically mounted instruments 
D) none of the above 
A) horizontally mounted instruments 
B) vertically mounted instruments 
C) both horizontally mounted instruments and vertically mounted instruments 
D) none of the above

Question 18

Chemical effect is used for the operation of:

Accepted Answer

A) voltmeter 
B) ammeter 
C) ampere hour meter 
D) kwh meter 
A) voltmeter 
B) ammeter 
C) ampere hour meter 
D) kwh meter

Question 19

Moving coil instruments are:

Accepted Answer

A) permanent magnet type 
B) dynamometer type 
C) induction type 
D) permanent magnet and dynamometer type 
A) permanent magnet type 
B) dynamometer type 
C) induction type 
D) permanent magnet and dynamometer type

Question 20

Electrostatic type instruments are mainly used for measurement of

Accepted Answer

A) heavy currents 
B) low currents 
C) low voltages 
D) high voltages 
A) heavy currents 
B) low currents 
C) low voltages 
D) high voltages

Measurement range of a voltmeter can be extended by using:

The major advantage of electromagnet type meter over a permanent magnet meter is

_____ instruments are those which measure the total quantity of electricity delivered in a particular time.

Which of the following essential features is possessed by an indicating instrument ?

The spring material used in a spring control device should have the following property.

The deflection torque can be produced by:

A voltmeter should have

An ammeter requires a change of 4A in its coil to produce a pointer deflection of 8mm then its sensitivity is

Which of the following voltmeter have least power consumption:

The change in the direction of a compass needle, when a current carrying wire is brought near, is called

A _____ device prevents the oscillation of the moving system and enables the latter to reach its final position quickly

Which of the following instruments indicate the instantaneous value of the electrical quantity being measured at the time at which it is being measured ?

The ratio and phase angle errors in potential transformer may be reduced by

The use of _____ instruments is merely confined within laboratories as standardizing instruments.

Which of the following instruments have least torque/weight ratio:

For increasing the range of an ammeter, connect:

Fluid friction damping can be used in

Chemical effect is used for the operation of:

Moving coil instruments are:

Electrostatic type instruments are mainly used for measurement of

Instrumentation and Electrical Engineering

Electrical Measurement and Testing

Watt/Meters and Energy Meters

Energy Meter Adjustments and Measurement Techniques

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Exam 1: Electrical Instrumentation

Measurement range of a voltmeter can be extended by using:

The major advantage of electromagnet type meter over a permanent magnet meter is

_____ instruments are those which measure the total quantity of electricity delivered in a particular time.

Which of the following essential features is possessed by an indicating instrument ?

The spring material used in a spring control device should have the following property.

The deflection torque can be produced by:

A voltmeter should have

An ammeter requires a change of 4A in its coil to produce a pointer deflection of 8mm then its sensitivity is

Which of the following voltmeter have least power consumption:

The change in the direction of a compass needle, when a current carrying wire is brought near, is called

A _____ device prevents the oscillation of the moving system and enables the latter to reach its final position quickly

Which of the following instruments indicate the instantaneous value of the electrical quantity being measured at the time at which it is being measured ?

The ratio and phase angle errors in potential transformer may be reduced by

The use of _____ instruments is merely confined within laboratories as standardizing instruments.

Which of the following instruments have least torque/weight ratio:

For increasing the range of an ammeter, connect:

Fluid friction damping can be used in

Chemical effect is used for the operation of:

Moving coil instruments are:

Electrostatic type instruments are mainly used for measurement of

Instrumentation and Electrical Engineering

Electrical Measurement and Testing

Watt/Meters and Energy Meters

Energy Meter Adjustments and Measurement Techniques

Filters