# Electrical measurements/Electrical Measurement MCQ Question Set 3 Sample Test,Sample questions

1.20.0 â„¦

2.22.22 â„¦

3. 25.0 â„¦

4.50.0 â„¦

1.Lx = R3 R5

2.Lx = CR5

3.Lx = CR3

4.Lx = CR3 R5

1. Y1Y3 = Y2Y4

2.Y1Y2 = Y3Y4

3.Y1Y4 = Y2Y3

4.Y1 Y3 = Y2 Y4

## Question: ` Impedance Z3 consists of______`

1.resistance R3

2.capacitance C3

3.vibration galvanometer

4.capacitance C3 in series with resistance R3

## Question: ` Impedance Z4 consists of ______`

1. resistance Rx

2.capacitance Cx

3.combination of capacitance Cx and resistance Rx

4.consists of a detector

## Question: ` Ratio arms of the bridge consists of _____`

1.pure inductances

2.pure resistances

3. pure capacitances

4.inductance and capacitance

1.1.4 %

2. 1.7 %

3.2.4 %

4.3.4 %

1.sinusoidal

2.cosinusoidal

3. tangential

4.logarithmic

## Question: ` Tuned detectors are used in the frequency range of ____`

1.1 Hz to 100 Hz

2.10 Hz to 100 Hz

3.1 kHz to 100 kHz

4. 1 MHz to 100 MHz

1. 120 â„¦

2.400 â„¦

3.1.8 kâ„¦

4.2.4 kâ„¦

1.0.010 â„¦

2.0.011 â„¦

3.0.025 â„¦

4.1.0 â„¦

1.3750 rev/kW-h

2.3600 rev/kW-h

3. 1000 rev/kW-h

4.960 rev/kW-h

1.110

2.100

3.11

4.10

1.2.25 %

2.2.35 %

3.4.5 %

4.4.71 %

## Question: `AC bridge is an outcome of ________`

1.Kelvin bridge

2.Megger

3.De Sauty bridge

4.Wheatstone bridge

## Question: `Actual balance condition can be obtained by _____`

1.varying R1

2.varying R3

3.varying R2

4.varying R1 and R3

## Question: `Anderson bridge is a modified form of ________`

1.Wheatstoneâ€™s bridge

2.Maxwell bridge

3.Kelvin double bridge

4.Schering bridge

## Question: `Anderson bridge is used for ________`

1.the measurement of self-inductance

2.the measurement of resistance

3.the measurement of capacitance

4.the measurement of impedance

## Question: `Andersonâ€™s bridge is basically used for ________`

1.measurement of capacitance

2.measurement of resistance

3.measurement of inductance

4.measurement of voltage

## Question: `At high frequencies in an AC bridge, the source is _______`

1.tuned amplifiers

2.oscillators

3.vibration galvanometer

4.high voltage source

1.amplifiers

2. regulators

3.oscillators

4. op amps

1. power line

2. e.m.f

3.galvanometer

4. tuned circuit

1.Z1 Z4 = Z2 Z3

2.Z1 Z2 = Z3 Z4

3. Z2 Z4 = Z1 Z3

4.Z1 Z3 = Z2 Z4

## Question: `Bridge can be used at audio frequency.`

1. True

2. False

3.all of the above

4.None of the mentioned

## Question: `Bridge depends on frequency.`

1.True

2.False

3.all of the above

4.None of the mentioned

## Question: `Bridge is used for the measurement of _________`

1.high Q factor

2.medium Q factor

3. low Q factor

4.very low Q factor

## Question: `Bridge must be balanced for _____`

1.magnitude

2.angle

3.magnitude and angle

4. power

1.tangential

2. negative

3.positive

4. logarithmic

1. positive

2.negative

3. zero

4.exponential

## Question: `For single frequency value, the most sensitive detector is ____`

1.tuned detector

2.vibration galvanometer

4.oscillator

## Question: `How is the bridge balanced?`

1.using resistance R1

2.using resistance R1

3.through capacitance C3

4.through capacitance Cx

## Question: `In a capacitance bridge, the arms are _________`

1.resistive

2.capacitive

3.inductive

4.mixture of resistance, capacitance and inductance

## Question: `In the simplest form, an AC bridge consists of _______`

1.arms, source and a detector

2.arms and source

3. source and detector

4.arms and detector

## Question: `Inductance comparison bridge is used to compute _____`

1.unknown inductance and resistance

2.unknown resistance

3. unknown inductance

4.unknown capacitance

1. using R2

2. using R1

3. using R1

4.using Lx

1.source

2.detector

3. power

4. impedance

## Question: `Ra and Rd are the opposite arms of a Wheatstone bridge as are Rc and Rb. The source voltage is applied across Ra and Rc. Then when the bridge is balanced which one of the following is true?`

1. Ra = Rc Rd/Rb

2. Ra = Rc Rd/Rb

3.Ra = Rb Rd/Rc

4.Ra = Rb + Rc + Rd

## Question: `Source is _______`

1.dc supply

2.ac supply

3.mixed mode supply

4.high voltage supply

## Question: `The frequency range of a typical oscillator is _______`

1.1 Hz to 50 Hz

2. 1 kHz to 100 KHz

3.40 Hz to 125 kHz

4.1 MHz to 150 MHz

## Question: `The output frequency of an oscillator is _______`

1.unstable and fixed

3. stable and fixed

4.unstable and variable

## Question: `The output power of an oscillator is not enough to drive power circuits.`

1. True

2. False

3.all of the above

4.None of the mentioned

1.1 kW

2.1 MW

3.1 mW

4. 7 W

1.Q sin (4t -30)

2.Q sin (2t +15)

3.Q sin (8t +60)

4.Q sin (4t +30)

## Question: `Tuned amplifier circuits respond to broad bandwidth at bridge frequency.`

1. True

2.False

3.all of the above

4.None of the mentioned

## Question: `Tuned amplifiers can be set to _______`

1. low frequencies

2.high frequencies

3.any frequency

4.audio frequencies

## Question: `Unknown capacitance value is obtained by ______`

1.comparison with standard

2.using a tuned detector

3.using capacitance of other ratio arms

4.using a vibration galvanometer

## Question: `Vibration galvanometers are used for ____`

1.very high frequency

2.very low frequency

3.low audio frequency

4.high audio frequency

## Question: `What is the frequency range for a headphone as a detector?`

1.20 Hz to 20 kHz

2. 10 kHz to 1 MHz

3.10 MHz to 1 GHz

4.250 Hz to 4 kHz

## Question: `When a bridge is balanced?`

1.no voltage drop across the circuit

2.power dissipation is high

3. temperature of the circuit is high

4.no current flows

## Question: `When the capacitor used is imperfect, the inductance value changes.`

1.True

2.False

3.all of the above

4.None of the mentioned

## More MCQS

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