Question 1

A Dynamometer type wattmeter responds to the:

Accepted Answer

A) average value of the active power 
B) average value of the reactive power 
C) peak value of the active power 
D) peak value of the reactive power 
A) average value of the active power 
B) average value of the reactive power 
C) peak value of the active power 
D) peak value of the reactive power

Question 2

The braking torque provided by a permanent magnet in a single phase energy meter is proportional to the

Accepted Answer

A) square of the flux of the permanent magnet 
B) speed of the meter 
C) distance of the permanent magnet from the centre of the revolving disc 
D) all of the above. 
A) square of the flux of the permanent magnet 
B) speed of the meter 
C) distance of the permanent magnet from the centre of the revolving disc 
D) all of the above.

Question 3

The phenomenon of creeping occurs in

Accepted Answer

A) voltmeter 
B) ammeter 
C) wattmeter 
D) watt-hour meter 
A) voltmeter 
B) ammeter 
C) wattmeter 
D) watt-hour meter

Question 4

An Induction meter meter can handle current upto

Accepted Answer

A) 10a 
B) 30a 
C) 200a 
D) 100a 
A) 10a 
B) 30a 
C) 200a 
D) 100a

Question 5

The power factor of a single phase load can be calculated if the instruments available are

Accepted Answer

A) one voltmeter and one ammeter 
B) one voltmeter, one ammetqr and one wattmeter 
C) one voltmeter, one ammeter and one energy meter 
D) any of the above 
A) one voltmeter and one ammeter 
B) one voltmeter, one ammetqr and one wattmeter 
C) one voltmeter, one ammeter and one energy meter 
D) any of the above

A Dynamometer type wattmeter responds to the:

The braking torque provided by a permanent magnet in a single phase energy meter is proportional to the

The phenomenon of creeping occurs in

An Induction meter meter can handle current upto

The power factor of a single phase load can be calculated if the instruments available are

Electrical Instrumentation

Instrumentation and Electrical Engineering

Electrical Measurement and Testing

Energy Meter Adjustments and Measurement Techniques

Filters

Exam 4: Watt/Meters and Energy Meters

A Dynamometer type wattmeter responds to the:

The braking torque provided by a permanent magnet in a single phase energy meter is proportional to the

The phenomenon of creeping occurs in

An Induction meter meter can handle current upto

The power factor of a single phase load can be calculated if the instruments available are

Electrical Instrumentation

Instrumentation and Electrical Engineering

Electrical Measurement and Testing

Energy Meter Adjustments and Measurement Techniques

Filters