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Pressure Measurement MCQs | Pressure Measurement MCQs and Answers for competitive exams

81 Electrostatic instruments are generally used as …………
[A] Ammeters
[B] Watt-hour meters
[C] Voltmeters
[D] Wattmeters
Answer: Voltmeters
82 The gravity controlled instruments has to be kept …………
[A] Horizontal
[B] Inclined at 45 degree
[C] Inclined at 75 degree
[D] Finite error
Answer: Vertical

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83 The undesirable characteristics of a measuring system is …………….
[A] Non linearity
[B] Dead zone
[C] Drift
[D] All of these
Answer: All of these
84 Suitable method for the reduction of systematic errors is / are ……………
[A] Instrument must be designed carefully
[B] By introducing an equal and opposite environmental input for compensating the effect of environmental input in a measurement system
[C] By adding high gain feedback to measurement system
[D] All of these
Answer: All of these
85 The measurements which can be simplified by using X – Y recorders is / are …………..
[A] Hysteresis curves
[B] Speed – torque characteristics of motors
[C] Regulation curves of power supplies
[D] All of these
Answer: All of these
86 Contact devices used for the measurement of level are …………
[A] Decreases
[B] Increases
[C] Remains same
[D] None of these
Answer: Decreases
87 If at one end, the two wires made of different metals are joined together then a voltage will get produced between the two wires due to difference of temp between the two ends of wires. This effect is observed in ………..
[A] Thermistors
[B] RTD
[C] Ultrasonics
[D] Thermocouples
Answer: Thermocouples
88 An ohmmeter is a ………… instrument.
[A] moving coil
[B] moving iron
[C] dynamometer
[D] None of the above
Answer: moving coil
89 To measure a very high resistance, we should use ………..
[A] Meggar
[B] Kelvin’s double bridge
[C] Wheat stone bridge
[D] None of these
Answer: Meggar
90 The electric power t a Meggar is provided by ………..
[A] permanent magnet D.C. generator
[B] battery
[C] any of the above
[D] A.C. generator
Answer: permanent magnet D.C. generator

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