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MCQ
BASIC ELECTRONICS
CONTROL SYSTEM ENGINEERING
DIGITAL ELECTRONICS
ELECTRICAL CIRCUIT ANALYSIS
ELECTRICAL ENERGY CONSERVATION AND AUDITING
ELECTRICAL ENGINEERING MATERIALS
ELECTRICAL MACHINES
ELECTRICAL WIRING
ELECTROMAGNETICS
MEASUREMENT & INSTRUMENTATION
MICROPROCESSOR AND MICROCONTROLLER INTERFACING
POWER ELECTRONICS & DRIVES
POWER SYSTEM
SIGNALS & SYSTEMS
UTILIZATION OF ELECTRICAL ENERGY
MEASUREMENT & INSTRUMENTATION
Q1.
The use of________ instruments is merely confined within Laboratories as standardizing instrument:
Absolute
Indicating
Recording
Integrating
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Solution
Q2.
Which of the following current transformers should saturate faster.
Capacitive current transformer
Protective current transformer
Measuring current transformer
Inductive current transformer
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Solution
Q3.
A Wattmeter is reading backwards in an experiment. Upscale reading can be obtained by reversing
Pressure coil connection only
Current coil connection only
Both pressure and current coil connection only
Either pressure or current coil connection
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Solution
Q4.
Before disconnecting an ammeter from an energized current transformer circuit, the current transformer
Primary should be opened.
Secondary should be shorted.
Secondary should be opened.
Primary should be shorted.
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Solution
Q5.
The resolution of an indicating instrument is
The smallest change in the output reading due to drifting of the pointer.
The smallest change in the applied stimulus that will indicate a detectable change in the deflection.
The difference between various readings for the same applied stimulus.
The difference between the first two readings for different applied stimulus.
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Solution
Q6.
Induction wattmeter can measure
a.c power only
d.c power only
both d.c and a.c power
none of the above
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Solution
Q7.
In Kelvin double bridge, two sets of readings are taken when measuring a low resistance, one with the current in one direction and the other with direction of current reversed. This is done to eliminate the effect of
Contact resistance
Resistance of leads
Changes in battery voltage
Thermo- electric emfs
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Solution
Q8.
If a resistor is known to be of 100 Ω and has a possible error of ± 10 Ω, then this ± 10 Ω is what type of error?
Systematic
Absolute
Manual
Instrument
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Solution
Q9.
Two voltmeters A and B having resistance 4000 Ω and 6000 Ω respectively are jointed in series across 200 V supply. The voltage across the two voltmeters will be___________.
\( V_A = 200 V \: and \: V_B = 200 V \)
\( V_A = 80 V \: and \: V_B = 120 V \)
\( V_A = 120 V \: and \: V_B = 120 V \)
\( V_A = 80 V \: and \: V_B = 80 V \)
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Solution
Q10.
A potentiometer may be used for
measurement of current
calibration of ammeter and voltmeter
measurement of resistance
all of the above
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Solution
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