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Pressure Measurement MCQs | Pressure Measurement Multiple Choice Questions and Answers

Questions
1 In which of the following categories be thin plate diaphragm included?
A Primary transducer
B Secondary transducer
C Voltage measuring devices
D Spring balance systems

Answer: Primary transducer
2 Which of the following quantities can be measured using bellows?
A Gauge pressure
B Differential pressure
C Absolute pressure
D All of the mentioned

Answer: All of the mentioned
3 Which of the following conversion take place in bourdon tubes?
A Pressure to voltage
B Pressure to strain
C Pressure to displacement
D Pressure to force

Answer: Pressure to displacement
4 Which of the following devices convert pressure to displacement?
A Bellow
B Diaphragm
C Capsule
D Both diaphragm and capsule

Answer: Both diaphragm and capsule
5 Which of the following is not a type of pressure sensing element?
A Orifice plate
B Manometer
C Bourdon tube
D Bellows

Answer: Orifice plate
6 If the pressure applied to the “low” side of a ∆P transmitter increases while the pressure applied to the “high” side remains steady, the transmitter output should:
A Decrease
B Fail low
C Remain the same
D Fail high

Answer: Decrease
7 …………. are integrating instruments?
A Ammeters
B Ampere-hour and Watt-hour meters
C Wattmeters
D Voltmeters

Answer: Ampere-hour and Watt-hour meters
8 ………….. instruments indicate the instantaneous value of the electrical quantity being measured at the time at which it is being measured?
A Indicating
B Absolute
C Recording
D None of the above

Answer: Indicating
9 Which of the following properties a damping oil must possess?
A should not have corrosive action upon the metal of the vane
B should be non-evaporating
C must be a good insulator
D all of the above

Answer: all of the above
10 For handling greater currents induction wattmeter are used in conjunction with …………….
A current transformer
B potential transformer
C power transformer
D all of the above

Answer: current transformer
11 The range of electrostatic voltmeter can be extended by using …………..
A Capacitance potential divider method
B Resistance potential divider method
C Both (1) and (2)
D None of these

Answer: Both (1) and (2)
12 In electrostatic instruments iron is not used for construction. These instruments are ………..
A Free from hysteresis and eddy current losses
B Free from temperature errors
C Dependent on temperature errors
D Both (1) and (2)

Answer: Both (1) and (2)
13 Electrostatic voltmeter instruments are suitable for ……………
A Both AC and DC work
B DC work only
C AC work only
D None of these

Answer: Both AC and DC work
14 In electrostatic voltmeters, the principle of their operation is the force of attraction between electric charges on neighboring plates between which potential difference is maintained. The attracted – disc type electrostatic instruments are used for the measurement of …………..
A Very high voltages
B Very low voltages
C Low voltages
D High voltages

Answer: Very high voltages
15 If the quantity to be measured remains constant during the process of taking the repeated measurements then the random errors can be eliminated by ………………
A Calculating the mean of the number of repeated measurements
B Calculating the median of the number of repeated measurements
C Calculating the sum of the numbers of repeated measurements
D Either (1) or (2)

Answer: Either (1) or (2)
16 If the degree of damping of an instrument should be adjusted to a value which is sufficient to enable the pointer to rise quickly to its deflected position without overshooting is called as …………
A Dead beat
B Overdamped
C Underdamped
D None of these

Answer: Dead beat
17 If the resistance in a circuit is given by 80 Ω ± 0.2% and the current flowing through it is 5A ± 0.1%, then the uncertainty in the power will be ………….
A ± 0.2 %
B ± 0.4 %
C ± 0.6 %
D ± 0.8 %

Answer: ± 0.4 %
18 In light emitting diode, the available light emitting region is …………..
A From 2.5 to 25 mm
B Less than 2.5 mm
C Greater than 25 mm
D Greater than 50 mm

Answer: From 2.5 to 25 mm
19 In rotary variable differential transformer, the mutual inductance between the primary and secondary coils varies …………
A Linearly with the angular displacement
B Non – linearly with the linear displacement
C Linearly with the linear displacement
D Non – linearly with the angular displacement

Answer: Linearly with the angular displacement
20 The potential transformers are used to measure large voltage using …………..
A Low range ammeter
B High range voltmeter
C Low range voltmeter
D High range ammeter

Answer: Low range ammeter

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