With each visit of this Electrical and Electronics Measurements and Instrumentation online Quiz / Practice Test, the list of MCQs / Objective Questions presented will be different, offering you a diverse set of practice opportunities. This variability encourages you to practice extensively, refining the accuracy of your answers and your overall grasp of the content. By utilizing this resource, you can hone your skills and become more adept at managing time constraints during actual exams.
Test Instructions
Question type
Randomized MCQs.Changes every time you visit the test
Total Number of Questions
30
Time Limit
20 Minutes
Points
1 Point for each Question
Remaining Time: 0 MINUTES
0 of 30 questions completed
Questions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Information
You have already completed the test before. Hence you can not start it again.
0 of 30 questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 points, (0 )
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Question 1 of 30
Q-1.An oscilloscope has an input capacitance of 50 pF and a resistance of 2 MΩ and the voltage divider ratio of 10. The parameter of high impedance probe are
Your Answer:Correct
Your Answer:Incorrect
Question 2 of 30
Q-2.In an permanent magnet moving coil ammeter the deflection of the pointer is proportional to product of flux density of magnetic field produced by the permanent magnet and current in the moving coil. if the strength of permanent magnet becomes 95% of the original, The meter gives erroneous reading resulting into error. This error can be classified as:
Your Answer:Correct
Your Answer:Incorrect
Question 3 of 30
Q-3.An Astatic movement in an electrodynamometer type of instrument is used for :
Your Answer:Correct
Your Answer:Incorrect
Question 4 of 30
Q-4.Modern electronic multimeters measure resistance by
Your Answer:Correct
Your Answer:Incorrect
Question 5 of 30
Q-5.A vibration galvanometer is tuned
Your Answer:Correct
Your Answer:Incorrect
Question 6 of 30
Q-6.In single-phase induction-type energy meters, lag adjustments are done by
Your Answer:Correct
Your Answer:Incorrect
Question 7 of 30
Q-7.In D.C technogenerators used for measurement of speed of a shaft , frequent calibration has to done because
Your Answer:Correct
Your Answer:Incorrect
Question 8 of 30
Q-8.An alternator is being synchronized to the busbars whose frequency is 50 Hz. The bulbs of the synchroscope flickers at a frequency of 10 Hz. The frequency of the alternator is :
Your Answer:Correct
Your Answer:Incorrect
Question 9 of 30
Your Answer:Correct
Your Answer:Incorrect
Question 10 of 30
Q-10.The power in a 3 phase four wire circuit can be measured by using
Your Answer:Correct
Your Answer:Incorrect
Question 11 of 30
Q-11.A typical telemetry carrier frequency 230 MHz may be used with a bandwidth of ±320kHz using A.M. a data with a bandwidth of 4 kHz has to be transmitted. Subcarrier having a frequency 32 kHz and 44 kHz are modulated. The frequency bands utilized are
Your Answer:Correct
Your Answer:Incorrect
Question 12 of 30
Q-12.When using d.c signal conditioning system, with a carrier of 3 kHz, the data frequency should be limited to :
Your Answer:Correct
Your Answer:Incorrect
Question 13 of 30
Q-13.If an induction type energy meter runs fast, it can be slowed down by :
Your Answer:Correct
Your Answer:Incorrect
Question 14 of 30
Q-14.Capacitive transducers are normally used for
Your Answer:Correct
Your Answer:Incorrect
Question 15 of 30
Q-15.Burrow’s permeameter is preffered to other permeameters as it :
Your Answer:Correct
Your Answer:Incorrect
Question 16 of 30
Q-16.The dimension of inductance in CGS s system are :
Your Answer:Correct
Your Answer:Incorrect
Question 17 of 30
Q-17.The transfer instrument which is used for standardisation of a polar-type ac potentiometer is
Your Answer:Correct
Your Answer:Incorrect
Question 18 of 30
Q-18.In a graded index fibre, the total reflected light takes a
Your Answer:Correct
Your Answer:Incorrect
Question 19 of 30
Q-19.A spring produces a controlling torque of 16x10-6 Nm for a deflection of 120Y. If the width and length become two times their original values and the thickness is halved, the value of controlling torque for the same deflection will be
Your Answer:Correct
Your Answer:Incorrect
Question 20 of 30
Q-20.The sensitivity of a PMMC instrument is 10kΩ/V. if this instrument is used in the rectifier type voltmeter with the half wave rectification, what would be the sensitivity?
Your Answer:Correct
Your Answer:Incorrect
Question 21 of 30
Q-21.Shunt-type ohmmeters have a switch along with the battery to
Your Answer:Correct
Your Answer:Incorrect
Question 22 of 30
Q-22.A voltage controlled oscillator(Vco ) is an instrument
Your Answer:Correct
Your Answer:Incorrect
Question 23 of 30
Q-23.Two sets of readings are taken in a Kelvin’s double bridge with the battery polarity reversed in order to
Your Answer:Correct
Your Answer:Incorrect
Question 24 of 30
Q-24.When measuring insulation resistance of cables using d.c sources, the galvanometer used should be initially short circuited because .
Your Answer:Correct
Your Answer:Incorrect
Question 25 of 30
Q-25.A high pass RC filter acts as a pure differentiator when______________
where ω = applied frequency and τ = time constant of RC circuit.
Your Answer:Correct
Your Answer:Incorrect
Question 26 of 30
Q-26.The bandwidth of RF including microwave is approximately
Your Answer:Correct
Your Answer:Incorrect
Question 27 of 30
Q-27.In an A.M. system, the modulated output voltage has Emin = 15 V, the modulation index is :
Your Answer:Correct
Your Answer:Incorrect
Question 28 of 30
Q-28.Absolute encoders are used for
Your Answer:Correct
Your Answer:Incorrect
Question 29 of 30
Q-29.A 4-range milliammeter having ranges of 0-10 mA, 0-50 mA, 0-100mA and 0-500 mA. It is used for measurement of current whose magnitude is not known. In order to prevent damage to the instrument, the selector switch of the ammeter should be first placed at
Your Answer:Correct
Your Answer:Incorrect
Question 30 of 30
Q-30.A circular peice of specimen has a surface resistance Rs. its diameter is d and the thickness is t. the surface resistivity ps of the specimen is given by :
Your Answer:Correct
Your Answer:Incorrect
Practice More Online Tests