Q1:- The dynamometer type wattmeter is used on
1.
ac only
2.
dc only
3.
ac and dc both
4.
full wave rectified
ANSWER:-3
Q2:- Most commonly used wattmeter is
1.
induction type
2.
electrostatic type
3.
dynamometer type
4.
moving iron type
ANSWER:-3
Q3:- A wattmeter can be used
1.
only for one rated current
2.
for different rating current without any change
3.
different rating current with change of
connection without multimeter
4.
with different currents with change of
connections and multimeter
ANSWER:-4
Q4:- The meter constant of energy meter is given by
1.
rev./kw
2.
rev./kWh
3.
rev./watt
4.
rev./kWhr
ANSWER:-2
Q5:- Wattmeter are available for different rating of
1. current
2. voltages
3.
currents and voltages both
4.
currents and voltages with change of connection
without multiplier
ANSWER:-4
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