Measurements and Instrumentation Part 3
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Attempt Free Measurements and Instrumentation Part 3 Here. Read The Important Electrical MCQ From Below.
guaranteed accuracy of 1% full-scale reading is
B) 0.181%
C) 0.0018%
D) 18.10%
Answer
[2] The induction of a high Q inductor can be measured by a
B) Hay Bridge
C) Maxwell Bridge
D) Wien Bridge
Answer
Measurements and Instrumentation Part 3
[3] If a DC voltmeter is made from an ammeter having a fed of 100μA then its sensitivity (in KΩ/V) will be
Answer
Guidelines: Assertion (A) and Reason (R) type Questions 4 and 5:
(B) Both a and R are correct and R is not explanation for A.
(C) A is true but R is false.
(D) A is false but R is true.
[4] A: The screen of a CRT is coated with phosphor on the inside.
R: Phosphor absorbs the KE of the bombarding electrons and re-emits energy at a frequency in the visible region.
Answer
[5] A: The Weign Bridge can be used for frequency measurements.
B: The Weign Bridge uses only capacitors and resistors.
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Measurements and Instrumentation Part 3
[6] It is desired to convert a 0-1000A meter movement, with an internal resistance of 100 ohms, into a 0-100mA
meter. The required value of shunt resistance is about
Answer
| List I | List II |
| (a) Megger | (p) Measurement of loss angle in a dielectric |
| (b) Spectrum analyzer | (q) Measurement of frequency |
| (c) Schering bridge | (r) Measurement of insulation resistance |
| (d) Digital counter | (s) Measurement of harmonics |
Answer
[8] In moving coil meters, damping is provided by
B) the aluminium frame of the coil.
C) eddy current disk.
D) The coil spring attached to the moving mechanism.
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Measurements and Instrumentation Part 3
[9] A 0 to 300V voltmeter has a guaranteed accuracy of 1% of full scale reading. The voltage measured by the instrument is 83V. The percentage limiting error is
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[10] An Aryton shunt is used to make a D’Arsonval galvanometer into a
Answer
Measurements and Instrumentation Part 3
