# Electrical measurements/Electrical Measurement MCQ Question Set 7 Sample Test,Sample questions

1.d.c. voltmeter

2.a.c. ammeter

3.d.c. ammeter

4.a.c. voltmeter

## Question: ` Energy meter can be directly used in measurement.`

1.True

2.False

3.all of the above

4.None of the mentioned

1.resistance

2.capacitance

3.inductance

4. voltage

1.amplifiers

2. transformers

3. transformers

4.voltmeters

## Question: ` 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

1. MV

2. V

3.GV

4.mV

1. 5-10-15

2.20-50-100

3.0.5-1-1.5

4.1-3-10

## Question: ` 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

1.1 coil

2.2 coils

3. 5 coils

4.3 coils

## Question: `An electronic energy meter is advantageous compared to conventional ones.`

1.True

2.False

3.all of the above

4.None of the mentioned

1.IC

2.Transformer

3.CRO

4.Multimeter

## Question: `Analog signal is converted _______`

1. into oscillations

2. into digital

3.into pulses

4.into current

1.is constant

2. increases

3.decreases

4.becomes zero

## Question: `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

## Question: `Average responding voltmeter is cheap and accurate.`

1.True

2.False

3.all of the above

4.None of the mentioned

## Question: `Basic circuit of multimeter consists ______`

1.of a.c. amplifier

2. of d.c. amplifier

3.operational amplifier

4. power amplifier

1. galvanometer

2.oscillator

## Question: `Creep adjustment involves _____`

2.exciting the current coil

4.exciting the pressure coil

## Question: `Decibel covers a small range of values.`

1. True

2.False

3.all of the above

4.None of the mentioned

## Question: `Disc rotation is determined by ____`

1.the supply voltage

2. an arrow

3.the turns ratio

## Question: `Eddy e.m.f produces a torque.`

1.True

2.False

3.all of the above

4.None of the mentioned

## Question: `Electronic multimeter measures ______`

1.voltage, current and resistance

2.voltage, current and resistance

3.current and power

4.energy and power

## Question: `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

## Question: `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

## Question: `Full load u.p.f adjustment involves ______`

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

1. a transformer

2.an attenuator

3.a transducer

4.a resistor

1.1

2.5

3.2

4.10

1.high

2.low

3.medium

4.zero

1. low

2.high

3.medium

4. zero

## Question: `Light load adjustment involves ________`

1.applying rated voltage across the pressure coil

3.applying rated current across the transformer

4.applying rated voltage across the current coil

1.100 divisions

2.50 divisions

3. 200 divisions

4.500 divisions

## Question: `Low power factor adjustment involves _____`

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

## Question: `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

## Question: `Measurement of heat power ________`

1.uses a heat sink

2. uses a thermometer

3.uses a thermocouple

4.uses a black body

## Question: `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

## Question: `Meter reading is obtained by _____`

1.sensing voltage

2. sensing heat power

3.sensing current

4. sensing resistance

1. voltage

2.current

3.bandwidth

4.frequency

## Question: `Overloading is ________`

1.damages the meter

2. increases the temperature

3.doesnâ€™t affect the meter

4.decreases the sensitivity

## Question: `Phase sequence indicator gives the maximum value of phase voltages.`

1.True

2. False

3.all of the above

4.None of the mentioned

## Question: `R.M.S value means ______`

1.root mean square

2.rate mean second

3.root median second

4.rate mode second

## Question: `Response of thermocouples is fast.`

1.True

2.False

3.all of the above

4.None of the mentioned

## Question: `Sensitivity of electronic voltmeter is high.`

1. True

2.False

3.all of the above

4.None of the mentioned

## Question: `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

## Question: `Synchronization of A.C. supply means ________`

1.different phase sequence

2.same phase sequence

3.zero phase

4.using a transformer

## Question: `The three coils are _____`

1.star connected

2.delta connected

3.not connected

4.shorted

## Question: `What is basic range of a meter?`

1.causes maximum deflection

2.causes minimum deflection

3.causes zero deflection

4.causes medium deflection

## Question: `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

## Question: `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

## Question: `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

## More MCQS

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