ME4I
22443
Multiple Choice Questions (MCQs)
1 Closeness with true value is called as- (A) Precision
- (B) Repeatability
- (C) Accuracy
- (D) Readability
2 The element which converts one form of signal into another form is called as
- (A) Transmitter
- (B) Transducer
- (C) Transformer
- (D) Translator
3 Making, checking & adjusting of instrument scale is called as
- (A) Correction
- (B) Precision
- (C) Resolution
- (D) Calibration
4 Variable area meter is also called as
- (A) Pyrometer
- (B) Rotameter
- (C) Thermometer
- (D) Anemometer
5 The sensitive element in hair hygrometer is
- (A) Carbon slice
- (B) Human hair
- (C) Vibrating tube and sensor
- (D) Silicon jelly
6 Overshoot is
- (A) Ratio of change of output signal to input signal
- (B) Minimum departure of pointer on steady state
- (C) Maximum departure of pointer above steady state
- (D) None of the above
7 Sling psychrometer is used for measurement of
- (A) Dry bulb temperature
- (B) Relative humidity
- (C) Wet bulb temperature
- (D) None of the above
8 Eddy current dynamometer is used for
- (A) Acoustic measurement
- (B) Cutting force measurement
- (C) Angular measurement
- (D) Shaft power measurement
9 Which one of the following is used for vibration measurement?
- (A) Humistor
- (B) Accelerometer
- (C) Sling psychrometer
- (D) Pyrometer
10 Ultrasonic flow meter works on
- (A) Propagation of sound wave
- (B) Propagation of light wave
- (C) Change of resistivity
- (D) Change of mutual inductance
11 Electrodynamic microphone is used for measurement of
- (A) Sound measurement
- (B) Liquid level
- (C) Strain
- (D) Water flow
12 Pressure measurement using Bourdon tube pressure gauge is example of
- (A) Direct measurement
- (B) Indirect measurement
- (C) Pressure control measurement
- (D) Flow control measurement
13 The degree of closeness with which the measuring instrument indicates or records a changing value of measurement variable input is called as
- (A) Fidelity
- (B) Hysteresis
- (C) Sensitivity
- (D) Precision
14 Photo voltaic cell is example of
- (A) Passive transducer
- (B) Elastic transducer
- (C) Active transducer
- (D) Resistive transducer
15 In Bourdon tube pressure gauge pressure is connected to
- (A) Free end of Bourdon tube
- (B) Both ends together
- (C) None of the above
- (D) Fixed end of Bordon tube
16 The reading is taken in optical pyrometer when
- (A) Filament is too bright
- (B) Filament breaks
- (C) Filament disappears
- (D) Filament is too dark
17 Automobile speedometer is
- (A) Revolution counter
- (B) Slipping clutch tachometer
- (C) Centrifugal force tachometer
- (D) Drag cup tachometer
18 Which instrument is contact less temperature measuring instrument?
- (A) Radiation pyrometer
- (B) Pressure gauge thermometer
- (C) Platinum resistance thermometer
- (D) Thermocouple
19 Which instrument works on principle of mutual inductance
- (A) Shaft encoder
- (B) LVDT
- (C) Quartz thermometer
- (D) Ultrasonic flowmeter
20 When instrument gives different reading for same value of input while measured in upscale and in downscale the error is called as
- (A) Hysteresis
- (B) Zero drift
- (C) Random error
- (D) Environmental error
21 The difference between true value and measured value is called as
- (A) Backlash
- (B) Error
- (C) Resolution
- (D) Dead zone
22 Absolute pressure is
- (A) Gauge pressure
- (B) Atmospheric pressure +gauge pressure
- (C) Atmospheric pressure – gauge pressure
- (D) None of the above
23 LVDT works on
- (A) AC
- (B) DC
- (C) Both AC & DC
- (D) None of the above
24 The name of instrument where we take readings of dry bulb and wet bulb temperature is
- (A) Quartz thermometer
- (B) Hair hygrometer
- (C) Sling psychrometer
- (D) Strain gauge
25 Following instrument is used for speed measurement
- (A) Bellow
- (B) Pirani gauge
- (C) Stroboscope
- (D) Thermocouple
26 Following is undesirable characteristic of instrument
- (A) Accuracy
- (B) Measuring lag
- (C) Sensitivity
- (D) Precision
27 What is the span of the instrument having range -100 to +100?
- (A) 0
- (B) 200
- (C) 100
- (D) None of the above
28 The FET IS
- (A) Fast forward transformation
- (B) Fast Fourier transformation
- (C) Fast force transducer
- (D) None of the above
29 In which instrument readability is better
- (A) Analog
- (B) Digital
- (C) Mechanical
- (D) None of the above
30 When two dissimilar metals are joined to form a loop and two junctions. If junctions are kept at different temperature emf is generated. This statement is
- (A) Faradays law
- (B) Seebeck effect
- (C) Pyrometry
- (D) Pascals law
31 Constantan is alloy of
- (A) Nickel + chromium
- (B) Copper + nickel
- (C) Iron + nickel
- (D) Nickel + chromium
32 Thermistor is used for measurement of
- (A) Steam pressure
- (B) Temperature
- (C) Velocity of flowing fluid
- (D) None of the above
33 Pressure actuated thermometer is used for measurement of
- (A) Pressure
- (B) Temperature
- (C) Pressure and temperature
- (D) None of the above
34 In case of Rota-meter the float material should be
- (A) Heavier than fluid to be metered
- (B) Lighter than fluid to be metered
- (C) Equal specific weight
- (D) None of the above
35 In load-cell there is
- (A) RTD
- (B) RVDT
- (C) Strain gauge
- (D) LVDT
36 In bimetallic thermometer, the bimetallic strip consists of
- (A) Two different nonmetals strips
- (B) Two different metals strips joined together
- (C) Two metal strips of same material
- (D) None of the above
37 Dynamo-meter is used for measurement of
- (A) Torque Measurement
- (B) Permeability
- (C) Force
- (D) Angular measurements
38 Sensitivity depends upon
- (A) Output and input
- (B) Only output
- (C) Only input
- (D) None of the above
39 The physical form of unit is called as
- (A) Calibration
- (B) Error detector
- (C) Dummy gauge
- (D) Standard
40 Precision depends upon
- (A) Accuracy
- (B) Conformity of successive readings
- (C) Range
- (D) Span