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Galvanometer Question & Answers

May 23, 2022 By WatElectronics

This article lists 100 Galvanometer MCQs for Engineering Students. All the Galvanometer Questions & Answers given below includes solution and link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of the galvanometer.

The galvanometer is a type of electromechanical device which is categorized into two types they are pivoted coil and suspended coil galvanometers. It is one type of instrument which uses a magnetic field, measures simply DC and they are more responsive. 

The galvanometers are invented in 1802 by Johann Schweiger, the unit of galvanometers is radian/ampere or division/ampere. The suspension, stable magnet, and moving coil are the parts of the galvanometer. The galvanometers are highly reliable, accurate, and highly sensitive. 

In a dead-beat galvanometer, the coil is wound on a conducting frame, and this dead-beat galvanometer is used for deflection of current. In a dead-beat galvanometer, the coil stops oscillating when the circuit switches off. 

In a ballistic galvanometer, the coil is wound on a non-conducting frame, and the ballistic galvanometer is used for deflection of charge. In a ballistic galvanometer, the coil keeps on oscillating even if the circuit-switched is off. 

1). Which one of the following galvanometers used for deflection of current?
HintThe ballistic galvanometer used for deflection of charge
2). In which one of the following galvanometers the coil is wound on a conducting frame?
HintIn ballistic galvanometer the coil is wound on a non-conducting frame
3). In which one of the following galvanometers the coil stops oscillating when the circuit switch off?
HintIn ballistic galvanometer, the coil keeps on oscillating even the circuit-switched off 
4). Which one of the following meters is a type of electromechanical device?
HintThe ammeter is a type of one of the electric instruments 
5). Which one of the following instruments uses a magnetic field?
HintThe galvanometer is one type of electromechanical instrument 
6). Which one of the following meters has a high sensitivity?
HintThe sensitivity is high in potentiometer whereas the sensitivity is low in voltmeter
7). Which one of the following instrument measures simply DC?
HintThe ammeter measures both DC and AC 
8). Which one of the following instruments is more responsive?
HintThe ammeter instrument is less responsive 
9). The moving coil galvanometers are categorized into _____________ types?
HintThe moving coil galvanometers are categorized into two types they are pivoted coil and suspended coil galvanometers
Read more about Ballistic Galvanometer 
10). The vibrational galvanometer is categorized into _____________ types?
HintThe vibrational galvanometer is categorized into two types they are moving coil type and moving magnet type galvanometers
11). Which one of the following type galvanometers is a portable instrument?
HintThe moving coil galvanometer is not a portable instrument 
12). Which one of the following type galvanometers is a moving magnet and fixed coil type?
HintThe moving coil galvanometer is a moving coil and fixed magnet type galvanometer 
13). There are __________ types of errors are there in induction instruments?
HintThe temperature and frequency errors are two types of errors in induction instruments 
14). The quadrant type electrostatic voltmeters are used up to ____________ KV?
HintThe quadrant type electrostatic voltmeters are used up to 20 KV
15). Which one of the following meter functions as clock mechanism?
HintThe clock meter is one type of energy meter 
16). Which one of the following meter operations depends on electrolytic action?
HintThe electrolytic meter is also one type of energy meter 
17). Which one of the following meters is really a small electric motor?
HintThe motor meters is also one type of energy meter 
18). The motor meters are categorized into ______________ types?
HintThe mercury motor, commutator motor, and induction motors are the type of motor meters 
19). Which one of the following meters used on AC circuits?
HintThe mercury motor meters used on dc circuits and commutator motor meters used on both ac and dc circuits
20). Which one of the following is a type of error in motor meters?
HintThe friction errors and braking errors are two types of errors in motor meters
21). The advantages of using galvanometers are ___________?
HintThe main disadvantage of using galvanometers is they used to measure only the direct currents
22). Which one of the following galvanometers is a type of DC galvanometer?
HintThe tuned detector and phase sensitive are types of Ac galvanometer 
23). Which one of the following is represented by a letter A?
HintThe number of turns in the coil is represented by the letter N and the current through the coil is represented by a letter I 
24). The mechanical hysteresis is an example for ______________ damping?
HintThe shock absorbers are an example of hydraulic damping 
25). Which one of the following meters used on AC and DC circuits?
HintThe induction motor meters used on AC circuits and mercury motor meters used on DC circuits

Galvanometer Important MCQs 

26). Which one of the following is represented by a letter N?
HintThe current through coil is represented by a letter I and the area of galvanometer coil is represented by a letter A 
27). The squeeze film damping is an example for ______________ damping?
HintThe shock absorbers is an example for hydraulic damping
28). The gun is an example for ____________ type of damping?
HintThe toilet flush button is an example for over damped and the stringed instruments is an example for under damped 
29). The simple pendulum is an example for ______________ vibration?
HintThe oscillation is an example for forced vibration 
30). The toilet flush button is an example for ____________ type of damping?
HintThe stringed instruments is an example for under damped and the gun is an example for critical type of damping 
31). The source of availability is mains or generator in ___________ current?
HintThe source of availability is cell or battery in direct current 
32). The power factor is always one in _______________ current?
HintThe power factor is always lies between o and 1 in direct current 
33). Which one of the following is a high resistance galvanometer?
HintThe ammeter is a low resistance galvanometer 
34). The flow indicator is an example for ______________ instruments?
HintThe pressure gauge is an example for passive instruments
35). Which one of the following components are used in ballistic galvanometer?
HintIn ballistic galvanometers errors may occur due to the use of permanent magnets, springs, etc
36). The resolution can be adjusted easily in ______________ type of instrument?
HintThe resolution can't be adjusted easily in passive type of instrument 
37). The technology renew period is long in __________ type of instrument?
HintThe technology renew period is short in visual type of instrument
38). Which one of the following instruments is vendor defined?
HintThe virtual instrument is user defined instruments 
39). Which one of the following instruments is low cost and reusable?
HintThe traditional instruments are expensive 
40). The hardware is the key in _______________ type of instruments?
HintThe software is the key in virtual type of instruments 
41). The figure shown below is a block diagram of ___________ galvanometer?
Mirror galvanometer
HintIn mirror galvanometer is also one type of measuring instrument which measures current 
42). Which one of the following instruments is expensive?
HintThe analog instruments are not expensive compare to digital 
43). In which one of the following instruments the accuracy is less?
HintThe accuracy is more in digital instruments compare to analogue 
44). The digitalization of signal is required in _____________ type of voltmeter?
HintThe digitalization of signal is not required in analogue type of voltmeter 
45). The speed of operation is more in ______________ type of voltmeter?
HintThe speed of operation is less in analogue type of voltmeter 
46). Which one of the following voltmeters has an overload indication?
HintThe analogue voltmeter doesn't have an overload indication 
47). The sensitivity is more in ______________ type of voltmeters?
HintThe sensitivity is less in analogue type of voltmeters 
48). which one of the following voltmeters has better resolution?
HintThe resolution is poor in analogue voltmeters 
49). Which one of the following meters is based on null deflection method?
HintThe voltmeters are based only on the deflection method 
50). Which one of the following types of voltmeters have an auto ranging feature?
HintThe analog type of voltmeter doesn't have an auto ranging feature 

Galvanometer MCQs for Quiz 

51). The __________ voltmeters are not calibrated automatically before every measurement?
HintThe digital voltmeters are calibrated automatically before every measurement 
52). The figure shown below is a block diagram of ___________ galvanometer?
Ballistic Galvanometer
HintIn ballistic galvanometer the coil is wound on a non-conducting frame 
53). The moment of inertia must be large in ______________ type of galvanometer?
HintThe moment of inertia must be small in dead-beat type of galvanometer 
54). The resolution is 0.001 or more in _____________ type of instruments?
HintThe resolution is 0.01 or more in analogy type of instruments 
55). Which one of the following instruments is not expensive?
HintThe digital instruments are expensive compare to analogue 
56). The shock absorbers are an example for ______________ damping?
HintThe mechanical hysteresis is an example for material damping 
57). The torque to weight ratio is ___________ in moving coil galvanometer?
HintThe advantage of moving coil galvanometer is the torque to weight ratio is high 
58). The Ah meter is one type of _____________ electrical measuring instrument?
HintThe integrating electrical measuring instruments measures the total energy
59). The figure shown below is a block diagram of ___________ galvanometer?
Dead-beat Galvanometer
HintIn dead-beat galvanometer the coil is wound on a conducting frame 
60). Which one of the following meters have a good range of measurements?
HintThe digital voltmeter doesn't have a good range of measurements compare to analog voltmeter 
61). The __________ voltmeters are calibrated automatically before every measurement?
HintThe analogue voltmeters are not calibrated automatically before every measurement 
62). Which one of the following types of voltmeters doesn't have an auto ranging feature?
HintThe digital type of voltmeter has an auto ranging feature 
63). Which one of the following meters is based on deflection method?
HintThe potentiometer is based on null deflection method 
64). In which one of the following voltmeters the resolution is poor?
HintThe digital voltmeter has better resolution 
65). In which one of the following voltmeters the sensitivity is less?
HintThe sensitivity is more in digital type of voltmeters 
66). Which one of the following voltmeters doesn't have an overload indication?
HintThe digital voltmeter has an overload indication 
67). The speed of operation is less in ______________ type of voltmeter?
HintThe speed of operation is more in digital type of voltmeter
68). The digitalization of signal is not required in _____________ type of voltmeter?
HintThe digitalization of signal is required in digital type of voltmeter
69). In which one of the following instruments the accuracy is more?
HintIn an antilog instruments the accuracy is less compared to digital 
70). The figure shown below is a block diagram of ___________ galvanometer?
Moving Coil Galvanometer
HintThe air friction damping is used in moving coil instruments 
71). The resolution is 0.01 or more in _____________ type of instruments?
HintThe resolution is 0.001 or more in digital type of instruments 
72). The software is the key in _______________ type of instruments?
HintThe hardware is the key in traditional type of instruments 
73). Which one of the following instruments is expensive?
HintThe virtual instrument is low cost and reusable 
74). Which one of the following instruments is user defined?
HintThe traditional instrument is vendor defined instruments 
75). The technology renew period is short in __________ type of instrument?
HintThe technology renew period is long in conventional type of instrument 

Galvanometer MCQs for Students 

76). The resolution can't be adjusted easily in ______________ type of instrument?
HintThe resolution can be adjusted easily in active type of instrument 
77). Which one of the following instruments are simple to design?
HintThe active instruments are complex to design 
78). The pressure gauge is an example for ______________ instruments?
HintThe flow indicator is an example for active instruments 
79). Which one of the following is a low resistance galvanometer?
HintThe voltmeter is a high resistance galvanometer 
80). The power factor is always lies between o and 1 in _______________ current?
HintThe power factor is always one in direct current 
81). The source of availability is cell or battery in ___________ current?
HintThe source of availability is mains or generator in alternate current 
82). The oscillation is an example for ______________ vibration?
HintThe simple pendulum is an example for free vibration 
83). The stringed instruments are an example for ____________ type of damping?
HintThe toilet flush button is an example for over damped and the gun is an example for critical type of damping 
84). The figure shown below is a block diagram of ___________ galvanometer?
Schematic of Tangent Galvanometer
HintIn tangent galvanometer measures electric current 
85). Which one of the following is represented by a letter I?
HintThe number of turns in coil is represented by a letter N and the area of galvanometer coil is represented by a letter A 
86). Which one of the following galvanometers is a type of DC galvanometer?
HintThe DArsonval galvanometer is a type of DC galvanometer 
Read more about Galvanometer
87). The moment of inertia must be very small in ______________ type of galvanometer?
HintThe moment of inertia must be large in ballistic type of galvanometer 
88). Which one of the following meters used on DC circuits?
HintThe induction motor meters used on AC circuits and commutator motor meters used on both AC and DC circuits 
89). The wattmeters are categorized into _____________ types?
HintThe dynamometer and induction type meters are two types of wattmeters 
90). The attracted disc type electrostatic voltmeters are used up to ____________ KV?
HintThe attracted disc type electrostatic voltmeters are used up to 500 KV
91). The electrostatic voltmeters are categorized into _____________ types?
HintThe attracted disc type and quadrant types are the types of electrostatic voltmeters  
92). Which one of the following type galvanometers is a moving coil and fixed magnet type galvanometer?
HintThe moving magnet galvanometer is a moving magnet and fixed coil type galvanometer 
93). Which one of the following type galvanometers is not a portable instrument?
HintThe moving magnet galvanometer is a portable instrument 
94). Which one of the following instruments is less responsive?
HintThe galvanometer instrument is more responsive 
95). Which one of the following instrument measures both DC and AC?
HintThe galvanometer instrument measures simply DC 
96). Which one of the following instruments is less exact?
HintThe ammeter is one type of instrument that is more exact 
97). Which one of the following meters is a type of electric instrument?
HintThe galvanometer is a type of electromechanical device 
98). In which one of the following galvanometers the coil keeps on oscillating even the circuit switched off?
HintIn dead-beat galvanometer the coil stops oscillating when the circuit switch off 
99). In which one of the following galvanometers the coil is wound on a non-conducting frame?
HintIn dead-beat galvanometer the coil is wound on a conducting frame 
100). Which one of the following galvanometers used for deflection of charge?
HintThe dead-beat galvanometer used for deflection of current  
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