1) Turbine meters are generally preferred for
a. Low-viscosity and high flow measurements
b. High viscosity and low flow measurements
c. High viscosity and high flow measurements
d. Low viscosity and low flow measurements
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2) The flow meter which is replacing the differential pressure meters in its applications is
a. Vortex-shedding flow meter
b. Electromagnetic flow meters
c. Ultrasonic flow meters
d. All of these
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3) Dipsticks are used for the
a. Pressure measurement
b. Flow measurement
c. Displacement measurement
d. Level measurement
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4) The most common application of float system is
a. To monitor the fuel tank level in motor vehicle
b. To monitor the flow of solid
c. To monitor the flow of liquid
d. All of these
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Answer
Explanation
Related Ques
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ANSWER: To monitor the fuel tank level in motor vehicle
Explanation:
No explanation is available for this question!
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5) Capacitive devices are used for the level measurement of
a. Only liquid
b. Solid in powdered form
c. Both (a) and (b)
d. None of these
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6) In ultrasonic level gauge, the ultrasonic source is placed at the
a. Bottom of the vessel containing the liquid
b. Top of the vessel containing the liquid
c. Middle of the vessel containing the liquid
d. Far from the vessel containing the liquid
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7) If the ambient temperature is doubled and pressure fluctuates, then the transmission time of radar through air is
a. Almost unaffected and remains same
b. Increases
c. Decreases
d. None of these
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8) In radiation methods, the detector system is located at
a. The top of the liquid filled tank
b. The bottom of liquid filled tank
c. Middle of the liquid filled tank
d. Outside a liquid filled tank
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9) A vibrating level sensors consists of
a. One piezoelectric oscillators
b. Two piezoelectric oscillators
c. Three piezoelectric oscillators
d. Four piezoelectric oscillators
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10) Contact devices used for the measurement of level are
a. Less reliable then devices which does not make contact with the material
b. More reliable then devices which does not make contact with the material
c. Less reliable then devices which makes contact with the material
d. More reliable then devices which makes contact with the material
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Answer
Explanation
Related Ques
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ANSWER: Less reliable then devices which does not make contact with the material
Explanation:
No explanation is available for this question!
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11) Instrument which is capable of discriminating temperature differences of even 0.1 degree Celsius is
a. Fibre-optic level sensors
b. Laser method
c. Thermography
d. Vibrating level sensors
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12) In fibre-optic level sensors, the amount of light loss depends on
a. The proportion of cable that is submerged in the liquid
b. Amount of light which is reflected back
c. The proportion of cable that is not in the liquid
d. Amount of light which is not reflected back
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Answer
Explanation
Related Ques
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ANSWER: The proportion of cable that is submerged in the liquid
Explanation:
No explanation is available for this question!
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13) To increase the current sensitivity below 10 mV, electronic instrument uses
a. Amplifiers
b. Modulator
c. Transducer
d. Oscillator
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14) Electronic voltmeters can be designed to measure
a. Only very small voltages
b. Only very high voltages
c. Both very small and very high voltages
d. None of these
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15) An RMS reading voltmeter can accurately measure voltages of
a. Sine waveforms
b. Square waveforms
c. Saw tooth waveforms
d. All of these
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16) In electronic voltmeter, the range of input voltages can be extended by using
a. Functional switch
b. Input attenuator
c. Rectifier
d. Balanced bridge dc amplifier
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17) The measurement range of digital voltmeter is
a. 1V to 1MV
b. 1V to 1kV
c. 1kV to 1MV
d. 100 kV to 100MV
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18) Which among the following is not the type of digital voltmeters?
a. Ramp type
b. Integrating
c. Potentiometric type
d. None of these
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19) In a ramp type DVM, the multivibrator determines the rate at which the
a. Clock pulses are generated
b. Measurement cycles are initiated
c. It oscillates
d. Its amplitude varies
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20) In potentiometric type DVM, the adjustment of sliding contact is done by
a. A single phase servomotor
b. Two phase servomotor
c. Three phase servomotor
d. All of these
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21) In the beginning, all the outputs of the successive approximation type register is at
a. Logic zero
b. Logic one
c. Toggling
d. None of these
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22) Q meter is used to measure the properties of
a. Inductive coils
b. Non inductive coils
c. Capacitive coils
d. Both (a) and (c)
e. None of these
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23) The different types of analog recorders are
a. Graphic recorders
b. Oscillographic recorders
c. Magnetic tape recorders
d. All of these
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24) X-Y recorders is the type of
a. Graphic recorders
b. Oscillographic recorders
c. Magnetic tape recorders
d. Digital recorders
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25) The measurements which can be simplifies by using X-Y recorders is /are
a. Speed-torque characteristics of motors
b. Regulation curves of power supplies
c. Hysteresis curves
d. All of these
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26) Depending on whether the display is a numeric or alphanumeric, the segmental displays is
a. 7 segmental
b. 14 segmental
c. 21 segmental
d. Either (a) or (b)
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27) In light emitting diode, the available light emitting region is
a. Less than 2.5 mm
b. From 2.5 to 25 mm
c. Greater than 25 mm
d. Greater than 50 mm
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28) In liquid crystal displays, the liquid crystal exhibits properties of
a. Liquid
b. Solids
c. Gases
d. Both (a) and (b)
e. None of these
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29) A liquid crystal display requires
a. An AC drive
b. A DC drive
c. Both AC and DC drive
d. None of these
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30) The full range of audibility in audio frequency oscillator is
a. 0 to 20 Hz
b. 20 Hz to 2 kHz
c. 20 Hz to 20 kHz
d. 20 Hz to 20 MHz
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31) The basic difference between square wave and pulse generator is their
a. Waveforms shape
b. Duty cycles
c. Frequency range
d. Cost
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32) In function generator, the output waveform of integrator is
a. Sinusoidal
b. Square
c. Triangular
d. Saw-tooth
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