Civil Engineering MCQs

Page No. 10

Euler’s dimensionless number relates the following_______________?


a inertial force and gravity

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bviscous force and inertial force

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c viscous force and buoyancy force

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dpressure force and inertial force

✓



Dynamic viscosity of most of the gases with rise in temperature___________________?


aincreases

✓


bdecreases

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cunpredictable

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dnone of the above

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View Answer increases

The speed of sound in a ideal gas varies directly as its ______________?


apressure

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btemperature

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cdensity

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d absolute temperature

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A metal with specific gravity of o floating in a fluid of same specific gravity a will___________________?


a sink to bottom

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bfloat over fluid

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cpartly immersed

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dbe fully immersed with top surface at fluid surface

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Dynamic viscosity of most of the liquids with rise in temperature____________________?


aincreases

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bdecreases

✓


c remains unaffected

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dunpredictable

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View Answer decreases

Which of the following instrument can be used for measuring speed of a submarine moving in deep sea_________________?


aVenturimeter

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bOrifice plate

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chot wire anemometer

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d pitot tube

✓


View Answer pitot tube

Mercury is often used in barometer because _________________?


ait is the best liquid

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bthe height of barometer will be less

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c its vapour pressure is so low that it may be neglected

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d both B. and C.

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View Answer both B. and C.

Which of the following instrument can be used for measuring speed of an aeroplane ________________?


aVenturimeter

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bOrifice plate

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crotameter

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d pitot tube

✓


View Answer pitot tube

Barometer is used to measure__________________?


apressure in pipes, channels etc.

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b atmospheric pressure

✓


cvery low pressure

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drain level

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In an isothermal atmosphere, the pressure__________________?


adecreases linearly with elevation

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bremains constant

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c varies in the same way as the density

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dunpredictable

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