Electrical Measurements MCQs
Contents
- 1 The strain gauge is a
- 2 The temperature coefficient of resistance for the material of shunt should be
- 3 Electrostatic instruments are used only as
- 4 The watt-hour meter is
- 5 When terminals of series ohmmeter are open-circuited the pointer reads
- 6 The resolution of the instrument is defined as the
- 7 Which of following is likely to have the largest resistance
- 8 In single phase energy meter, if brake magnet is moved toward the center of spindle, the disc speed
- 9 In a function generator, the output waveform of integrator is
The strain gauge is a
The strain gauge is a
- Passive device and converts mechanical displacement into a change of resistance
- Active device and converts mechanical displacement into a change of resistance
- Passive device and converts electrical displacement into a change of resistance
- Active device and converts electrical displacement into a change of resistance
Correct answer: 1. Passive device and converts mechanical displacement into a change of resistance
The temperature coefficient of resistance for the material of shunt should be
The temperature coefficient of resistance for the material of shunt should be:
- Negative
- Positive
- Negligible
- None of these
Correct answer: 3. Negligible
Also read: Temperature coefficient of resistance of given conductor is defined as
Electrostatic instruments are used only as
Electrostatic instruments are used only as:
- Ammeters
- Voltmeters
- Both of above
- Wattmeters
Correct answer: 2. Voltmeters
The watt-hour meter is
The watt-hour meter is:
- A transmitter device
- A recorder device
- An indicating instrument
- An integrating instrument
Correct answer: 4. An integrating instrument
When terminals of series ohmmeter are open-circuited the pointer reads
When terminals of series ohmmeter are open-circuited the pointer reads:
- Zero
- High value of resistance
- Infinity
- None of these
Correct answer: 3. Infinity
The resolution of the instrument is defined as the
The resolution of the instrument is defined as the:
- Maximum quantity it can measure
- Minimum quantity it can measure
- Maximum non-linearity
- None of these
Correct answer: 2. Minimum quantity it can measure
Which of following is likely to have the largest resistance
Which of following is likely to have the largest resistance:
- Ammeter of range 1 A
- Voltmeter of range 10 V
- Moving coil galvanometer
- A copper wire having 1 m length and 3 mm diameter
Correct answer: 2. Voltmeter of range 10 V
In single phase energy meter, if brake magnet is moved toward the center of spindle, the disc speed
In single phase energy meter, if brake magnet is moved toward the center of spindle, the disc speed:
- Decreases
- Increases
- Remains same
- None of these
Correct answer: 2. Increases
In a function generator, the output waveform of integrator is
In a function generator, the output waveform of integrator is
- Sinusoidal
- Square
- Saw-tooth
- Triangular
Correct answer: 4. Triangular
Read more Electrical Engineering MCQs here.
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