Pressure Measurement MCQs and Answers for competitive exams

Questions

81 Electrostatic instruments are generally used as …………

A Ammeters

B Watt-hour meters

C Voltmeters

D Wattmeters

View Answer

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

View Answer

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

View Answer

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

View Answer

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

View Answer

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

View Answer

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

View Answer

Answer: Thermocouples

88 An ohmmeter is a ………… instrument.

A moving coil

B moving iron

C dynamometer

D None of the above

View Answer

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

View Answer

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

View Answer

Answer: permanent magnet D.C. generator

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