Level Measurement - MCQs with answers

Level Measurement - MCQs with answers

Q1. Dipsticks are used for the

A. Pressure measurement
B. Flow measurement
C. Displacement measurement
D. Level measurement

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Q2. 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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Q3. 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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Q4. 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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Q5. 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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Q6. 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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Q7. 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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Q8. 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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Q9. 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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Q10. 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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