Measurement and Instrumentation solved MCQs

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The use of _____ instruments is merely confined within laboratories as stand¬ardizinginstruments The use of _____ instruments is merely confined within laboratories as stand¬ardizinginstruments. absolute indicating recording integrating discuss The answer is: A. absolute
Which of the following instruments indicate the instantaneous value of the electrical quantitybeing measured at the time at which it is being measured ? Which of the following instruments indicate the instantaneous value of the electrical quantitybeing measured at the time at which it is being measured ? Absolute instruments Indicating instruments Recording instruments Integrating instruments discuss The answer is: B. Indicating instruments
_____ instruments are those which measure the total quantity of electricity delivered in aparticular time _____ instruments are those which measure the total quantity of electricity delivered in aparticular time. Absolute Indicating Recording Integrating discuss The answer is: D. Integrating
Which of the following are integrating instruments ? Which of the following are integrating instruments ? Ammeters Voltmeters Wattmeters Ampere-hour and watt-hour meters discuss The answer is: D. Ampere-hour and watt-hour meters
Resistances can be measured with the help of Resistances can be measured with the help of wattmeters voltmeters ammeters ohmmeters and resistance bridges discuss The answer is: D. ohmmeters and resistance bridges
According to application, instruments are classified as According to application, instruments are classified as switch board portable both (a) and (b) moving coil discuss The answer is: C. both (a) and (b)
Which of the following essential features is possessed by an indicating instrument ? Which of the following essential features is possessed by an indicating instrument ? Deflecting device Controlling device Damping device All of the above discuss The answer is: D. All of the above
A _____ device prevents the oscillation of the moving system and enables the latter toreach its final position quickly A _____ device prevents the oscillation of the moving system and enables the latter toreach its final position quickly deflecting controlling damping any of the above discuss The answer is: C. damping
The spring material used in a spring control device should have the following property The spring material used in a spring control device should have the following property. Should be non-magnetic Most be of low temperature co-efficient Should have low specific resistance All of the above discuss The answer is: D. All of the above
Which of the following properties a damping oil must possess ? Which of the following properties a damping oil must possess ? Must be a good insulator Should be non-evaporating Should not have corrosive action upon the metal of the vane All of the above discuss The answer is: D. All of the above
A moving-coil permanent-magnet instrument can be used as _____ by using a lowresistance shunt A moving-coil permanent-magnet instrument can be used as _____ by using a lowresistance shunt. ammeter voltmeter flux-meter ballistic galvanometer discuss The answer is: D. ballistic galvanometer
A moving-coil permanent-magnet instrument can be used as flux-meter A moving-coil permanent-magnet instrument can be used as flux-meter by using a low resistance shunt by using a high series resistance by eliminating the control springs by making control springs of large moment of inertia discuss The answer is: A. by using a low resistance shunt
Which of the following devices may be used for extending the range of instruments ? Which of the following devices may be used for extending the range of instruments ? Shunts Multipliers Current transformers All of the above discuss The answer is: C. Current transformers
An induction meter can handle current upto An induction meter can handle current upto 10 A 30 A 30 A 100 A discuss The answer is: D. 100 A
For handling greater currents induction wattmeters are used in conjunction with For handling greater currents induction wattmeters are used in conjunction with potential transformers current transformers power transformers either of the above discuss The answer is: D. either of the above
Induction type single phase energy meters measure electric energy in Induction type single phase energy meters measure electric energy in kW Wh kWh VAR discuss The answer is: B. Wh
Most common form of A.C. meters met with in every day domestic and industrialinstallations are Most common form of A.C. meters met with in every day domestic and industrialinstallations are mercury motor meters commutator motor meters induction type single phase energy meters all of the above discuss The answer is: C. induction type single phase energy meters
Which of the following meters are not used on D.C. circuits Which of the following meters are not used on D.C. circuits Mercury motor meters Commutator motor meters Induction meters None of the above discuss The answer is: C. Induction meters
Which of the following is an essential part of a motor meter ? Which of the following is an essential part of a motor meter ? An operating torque system A braking device Revolution registering device All of the above discuss The answer is: C. Revolution registering device
A potentiometer may be used for A potentiometer may be used for measurement of resistance measurement of current calibration of ammeter all of the above discuss The answer is: D. all of the above

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