1) 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
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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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2) 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
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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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3) 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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Answer
Explanation
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ANSWER: Thermography
Explanation:
No explanation is available for this question!
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4) A vibrating level sensors consist of
a. One piezoelectric oscillators
b. Two piezoelectric oscillators
c. Three piezoelectric oscillators
d. Four piezoelectric oscillators
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Answer
Explanation
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ANSWER: Two piezoelectric oscillators
Explanation:
No explanation is available for this question!
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5) In radiation methods, the detector system is located
a. At the top of the liquid filled tank
b. At the bottom of liquid filled tank
c. In middle of the liquid filled tank
d. Outside a liquid filled tank
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Answer
Explanation
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ANSWER: Outside a liquid filled tank
Explanation:
No explanation is available for this question!
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6) 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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Answer
Explanation
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ANSWER: Almost unaffected and remains same
Explanation:
No explanation is available for this question!
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7) 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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Answer
Explanation
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ANSWER: Bottom of the vessel containing the liquid
Explanation:
No explanation is available for this question!
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8) 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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Answer
Explanation
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ANSWER: Both (a) and (b)
Explanation:
No explanation is available for this question!
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9) 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
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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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10) Dipsticks are used for the
a. Pressure measurement
b. Flow measurement
c. Displacement measurement
d. Level measurement
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Answer
Explanation
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ANSWER: Level measurement
Explanation:
No explanation is available for this question!
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