Measurement And Instrumentation MCQ Questions & Answers

Section 1 Section 2 Section 3 Section 4

31.
For accurate measurement of voltage the most suitable equipment

A. Analog Voltmeter

B. Digital Voltmeter

C. CRO

D. None of these

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32.
A coil is tuned to response at 1 MHz with a resonating capacitance of 72 pF. At 500 kHz, the resonance is obtained with a resonating capacitance value of 360 pF. The self-capacitance of the coil is

A. 12 pF

B. 24 pF

C. 36 pF

D. 72 pF

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33.
Match List-I with List-II and select the correct answer using the options given below:

List-I (Characteristics) List-II (ADCs)

a. Parallel comparator 1. Null balancing type

b. Successive approximation 2. Fastest converter

c. Dual-slope 3. Voltage dependent conversion time

d. Counter-ramp 4. Integrating type

A. a-2, b-1, c-3, d-4

B. a-2, b-1, c-4, d-3

C. a-1, b-2, c-4, d-3

D. a-1, b-2, c-3, d-4

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34.
The internal resistance of the milliammeter must be very low for

A. high accuracy

B. high sensitivity

C. minimum effect on the current in the circuit

D. maximum voltage drop across the meter

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35.
Which of the following cannot provide as much time interval accuracy as the oscilloscope but can capture and display eight or more signals simultaneously, something that scopes cannot do?

A. Logic analyzer

B. Digital oscilloscope

C. Frequency analyzer

D. Wave analyzer

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36.
The three impedances of an ac bridge shown in given figure are:
Z₁ = 200Ω∠60°, Z₂ = 400Ω∠-90°, Z₃ = 300Ω∠0°
The value of Z₄ for the bridge to be balanced is

A. 150Ω∠30°

B. 400Ω∠90°

C. 300Ω∠90°

D. 600Ω∠-150°

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37.
In a linear variable differential transformer (LVDT).

A. all three windings have equal number of turns

B. two secondary windings have equal number of turns

C. the induced voltages in two secondaries are unequal

D. the induced voltages in two secondaries are in phase

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38.
Electrical positional system telemetering uses for transmission of signal in

A. Two wires only

B. Two or three wires only

C. Two or three or four wires only

D. Two or three four or even five wires

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39.
A potentiometer is basically a

A. deflectional type instrument

B. null type instrument

C. deflectional as well as null type instrument

D. a digital instrument

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40.
Match List-I with List-II and select the correct answer using the options given below:

List-I (Bridge) List-II (Quantity)

a. Wheatstone bridge 1. Capacitance

b. Wien bridge 2. Very low resistance

c. Kelvin double bridge 3. Resistance

d. Schering bridge 4. Frequency

A. a-3, b-4, c-2, d-1

B. a-2, b-1, c-3, d-4

C. a-3, b-1, c-2, d-4

D. a-2, b-4, c-3, d-1

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1 2 3 4 5 6 7 8 9 10

List-I (Characteristics)	List-II (ADCs)
a. Parallel comparator	1. Null balancing type
b. Successive approximation	2. Fastest converter
c. Dual-slope	3. Voltage dependent conversion time
d. Counter-ramp	4. Integrating type

List-I (Bridge)	List-II (Quantity)
a. Wheatstone bridge	1. Capacitance
b. Wien bridge	2. Very low resistance
c. Kelvin double bridge	3. Resistance
d. Schering bridge	4. Frequency

Measurement And Instrumentation MCQ Questions & Answers | ECE

31. For accurate measurement of voltage the most suitable equipment

Answer & Solution

32. A coil is tuned to response at 1 MHz with a resonating capacitance of 72 pF. At 500 kHz, the resonance is obtained with a resonating capacitance value of 360 pF. The self-capacitance of the coil is

Answer & Solution

Answer & Solution

34. The internal resistance of the milliammeter must be very low for

Answer & Solution

35. Which of the following cannot provide as much time interval accuracy as the oscilloscope but can capture and display eight or more signals simultaneously, something that scopes cannot do?

Answer & Solution

36. The three impedances of an ac bridge shown in given figure are: Z1 = 200Ω∠60°, Z2 = 400Ω∠-90°, Z3 = 300Ω∠0° The value of Z4 for the bridge to be balanced is

Answer & Solution

37. In a linear variable differential transformer (LVDT).

Answer & Solution

38. Electrical positional system telemetering uses for transmission of signal in

Answer & Solution

39. A potentiometer is basically a

Answer & Solution

40. Match List-I with List-II and select the correct answer using the options given below: List-I (Bridge) List-II (Quantity) a. Wheatstone bridge 1. Capacitance b. Wien bridge 2. Very low resistance c. Kelvin double bridge 3. Resistance d. Schering bridge 4. Frequency

Answer & Solution

Read More Section(Measurement and Instrumentation)

31.
For accurate measurement of voltage the most suitable equipment

32.
A coil is tuned to response at 1 MHz with a resonating capacitance of 72 pF. At 500 kHz, the resonance is obtained with a resonating capacitance value of 360 pF. The self-capacitance of the coil is

34.
The internal resistance of the milliammeter must be very low for

35.
Which of the following cannot provide as much time interval accuracy as the oscilloscope but can capture and display eight or more signals simultaneously, something that scopes cannot do?

36.
The three impedances of an ac bridge shown in given figure are:
Z₁ = 200Ω∠60°, Z₂ = 400Ω∠-90°, Z₃ = 300Ω∠0°
The value of Z₄ for the bridge to be balanced is

37.
In a linear variable differential transformer (LVDT).

38.
Electrical positional system telemetering uses for transmission of signal in

39.
A potentiometer is basically a

40.
Match List-I with List-II and select the correct answer using the options given below:

List-I (Bridge) List-II (Quantity)

a. Wheatstone bridge 1. Capacitance

b. Wien bridge 2. Very low resistance

c. Kelvin double bridge 3. Resistance

d. Schering bridge 4. Frequency