Current can be measured effectively by making use of ____

1.d.c. voltmeter

2.a.c. ammeter

3.d.c. ammeter

4.a.c. voltmeter

Energy meter can be directly used in measurement.

1.True

2.False

3.all of the above

4.None of the mentioned

Input impedance depends on _____

1.resistance

2.capacitance

3.inductance

4. voltage

Low voltage signals can be measured by _______

1.amplifiers

2. transformers

3. transformers

4.voltmeters

Preliminary light load adjustment involves _______

1.applying rated voltage across current coil

2.making use of a light load

3.applying rated voltage across pressure coil

4.adjusting the light load

Sensitivity is of the order of ______

1. MV

2. V

3.GV

4.mV

Voltage ranges in a meter are _____

1. 5-10-15

2.20-50-100

3.0.5-1-1.5

4.1-3-10

What is the effect of the input on the transistor Q2?

1.bias on Q2 decreases

2. bias on Q2 is constant

3. bias on Q2 is zero

4.bias on Q2 increases

A rotating phase sequence indicator consists of _____

1.1 coil

2.2 coils

3. 5 coils

4.3 coils

An electronic energy meter is advantageous compared to conventional ones.

1.True

2.False

3.all of the above

4.None of the mentioned

An electronic energy meter makes use of ______

1.IC

2.Transformer

3.CRO

4.Multimeter

Analog signal is converted _______

1. into oscillations

2. into digital

3.into pulses

4.into current

At high frequencies the capacitive reactance ____

1.is constant

2. increases

3.decreases

4.becomes zero

Average power is _______

1.product of voltage and current

2.product of average current and voltage

3.product of instantaneous voltage and current

4.product of absolute voltage and current

Average responding voltmeter is cheap and accurate.

1.True

2.False

3.all of the above

4.None of the mentioned

Basic circuit of multimeter consists ______

1.of a.c. amplifier

2. of d.c. amplifier

3.operational amplifier

4. power amplifier

Bridge is balanced by ______

1. galvanometer

2.oscillator

3.zero adjustment resistor

4.head phone

Creep adjustment involves _____

1.adjusting the creep

2.exciting the current coil

3.adjusting the turns ratio

4.exciting the pressure coil

Creeping in an energy meter can be found using ______

1.creep adjustment

2.preliminary light load adjustment

3.full load u.p.f adjustment

4. light load adjustment

Decibel covers a small range of values.

1. True

2.False

3.all of the above

4.None of the mentioned

Disc rotation is determined by ____

1.the supply voltage

2. an arrow

3.the turns ratio

4.the load current

Eddy e.m.f produces a torque.

1.True

2.False

3.all of the above

4.None of the mentioned

Electronic multimeter measures ______

1.voltage, current and resistance

2.voltage, current and resistance

3.current and power

4.energy and power

Excitation of the three coils produces _____

1.a static magnetic field

2.a rotating magnetic field

3. a static electric field

4. a rotating electric field

Frequency of oscillation in an electronic energy meter depends on ______

1. output current of multiplier

2. output voltage of multiplier

3.output power of multiplier

4.input resistance of multiplier

Full load u.p.f adjustment involves ______

1.adjusting the loads at unity power factor

2.applying rated voltage to pressure coil and a p.f. of unity for current coil

3.only applying rated voltage to pressure coil

4.only a p.f. of unity for the current coil

High range can be obtained in a basic D.C. electronic voltmeter by ________

1. a transformer

2.an attenuator

3.a transducer

4.a resistor

How many types of phase sequence indicators are there?

1.1

2.5

3.2

4.10

Input impedance of a voltmeter is ______

1.high

2.low

3.medium

4.zero

Input impedance of an electronic voltmeter is _____

1. low

2.high

3.medium

4. zero

Light load adjustment involves ________

1.applying rated voltage across the pressure coil

2.adjusting a light load

3.applying rated current across the transformer

4.applying rated voltage across the current coil

Linear meter with 1% accuracy must have ______

1.100 divisions

2.50 divisions

3. 200 divisions

4.500 divisions

Low power factor adjustment involves _____

1.adjusting the power factor at lower loads

2.applying rated voltage to pressure coil and a p.f. of 0.5 for current coil

3.only applying rated voltage to pressure coil

4.only a p.f. of 0.5 for the current coil

Measurement of energy involves _____

1.inductance and capacitance measurement

2.power consumption and time duration

3. resistance measurement and voltage drop

4. current consumption and voltage drop

Measurement of heat power ________

1.uses a heat sink

2. uses a thermometer

3.uses a thermocouple

4.uses a black body

Meter can be isolated from the circuit in a basic D.C. electronic voltmeter.

1.True

2.False

3.all of the above

4.None of the mentioned

Meter reading is obtained by _____

1.sensing voltage

2. sensing heat power

3.sensing current

4. sensing resistance

Noise is a function of ______

1. voltage

2.current

3.bandwidth

4.frequency

Overloading is ________

1.damages the meter

2. increases the temperature

3.doesnâ€™t affect the meter

4.decreases the sensitivity

Phase sequence indicator gives the maximum value of phase voltages.

1.True

2. False

3.all of the above

4.None of the mentioned

R.M.S value means ______

1.root mean square

2.rate mean second

3.root median second

4.rate mode second

Response of thermocouples is fast.

1.True

2.False

3.all of the above

4.None of the mentioned

Sensitivity of electronic voltmeter is high.

1. True

2.False

3.all of the above

4.None of the mentioned

Sufficient heating of the heater is ensured by ______

1.increasing the temperature

2. making use of induction coil

3.amplifying d.c. input

4.amplifying a.c. input

Synchronization of A.C. supply means ________

1.different phase sequence

2.same phase sequence

3.zero phase

4.using a transformer

The three coils are _____

1.star connected

2.delta connected

3.not connected

4.shorted

What is basic range of a meter?

1.causes maximum deflection

2.causes minimum deflection

3.causes zero deflection

4.causes medium deflection

What is the main disadvantage of a true r.m.s responding voltmeter?

1. presence of transducer

2.presence of thermocouple

3.presence of transformer

4.presence of oscillator

What is the naming convention for the two thermocouples?

1.thermocouple 1 and thermocouple 2

2. input thermocouple and output thermocouple

3.measuring thermocouple and balancing thermocouple

4.internal thermocouple and external thermocouple

What is the role of a multiplier?

1. it multiplies the voltage and current

2.divides the alternating voltage and current

3.supplies instantaneous voltage and current

4.multiplies alternating voltage and current

- Electrical Measurement MCQ Question Set 1
- Electrical Measurement MCQ Question Set 2
- Electrical Measurement MCQ Question Set 3
- Electrical Measurement MCQ Question Set 4
- Electrical Measurement MCQ Question Set 5
- Electrical Measurement MCQ Question Set 6
- Electrical Measurement MCQ Question Set 7
- Electrical Measurement MCQ Question Set 8
- Electrical Measurement MCQ Question Set 9
- Electrical Measurement MCQ Question Set 10
- Electrical Measurement MCQ Question Set 11
- Electrical Measurement MCQ Question Set 12
- Electrical Measurement MCQ Question Set 13
- Electrical Measurement MCQ Question Set 14
- Electrical Measurement MCQ Question Set 15
- Electrical Measurement MCQ Question Set 16
- Electrical Measurement MCQ Question Set 17
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- Digital Communications MCQs set-2
- Digital Communications MCQs set-3
- Digital Communications MCQs set-4
- Digital Communications MCQs set-5
- Digital Communications MCQs set-6
- Digital Communications MCQs set-7
- Digital Communications MCQs set-8
- Digital Communications MCQs set-9
- Digital Communications MCQs set-10
- Digital Communications MCQs set-11
- Digital Communications MCQs set-12
- Digital Communications MCQs set-13
- Digital Communications MCQs set-14
- Digital Communications MCQs set-15
- Digital Communications MCQs set-16
- Digital Communications MCQs set-17

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