Pressure Measurement MCQs | 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

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
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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