Measurement and Instrumentation Objective Question and Answer
Measurement and Instrumentation MCQ Multiple Choice Questions - Page 4 for Practice
91. To measure a resistance with the help of a potentiometer it is
Correct Answer is: not necessary to standardise the potentiometer
92. To measure an A. C. voltage by using an A.C. potentiometer, it is desirable that the supplyfor the potentiometer in taken
Correct Answer is: from the same source as the unknown voltage
93. To measure radio frequency, the suitable frequency meter is
Correct Answer is: hetrodyne frequency meter
94. Two holes in the disc of energymeter are drilled at the opposite sides of the spindle to
Correct Answer is: eliminate creeping at no load
95. Various adjustments in an energy meter include
Correct Answer is: temperature compensation
96. Volt box is a component to
Correct Answer is: extend voltage range
97. Wagner earthing device is used to eliminate errors due to
Correct Answer is: electrostatic coupling
98. Wattmeter cannot be designed on the principle of
Correct Answer is: moving iron instrument
99. When a capacitor was connected to the terminal of ohmmeter, the pointer indicated a low resistance initially and then slowly came to infinity position. This shows that capacitor is
Correct Answer is: all right
100. Which of the following are integrating instruments ?
Correct Answer is: Ampere-hour and watt-hour meters
101. Which of the following devices may be used for extending the range of instruments ?
Correct Answer is: All of the above
102. Which of the following devices should be used for accurate measurement of low D.C. voltage ?
Correct Answer is: D.C. potentiometer
103. Which of the following essential features is possessed by an indicating instrument ?
Correct Answer is: All of the above
104. Which of the following instruments indicate the instantaneous value of the electrical quantity being measured at the time at which it is being measured ?
Correct Answer is: Indicating instruments
105. Which of the following is an essential part of a motor meter ?
Correct Answer is: All of the above
106. Which of the following is measured by using a vector voltmeter ?
Correct Answer is: All of the above
107. Which of the following meters are not used on D.C. circuits
Correct Answer is: Induction meters
108. Which of the following properties a damping oil must possess ?
