Civil Engineering MCQs

Page No. 10

Euler’s dimensionless number relates the following_______________?


a inertial force and gravity


bviscous force and inertial force


c viscous force and buoyancy force


dpressure force and inertial force



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


aincreases


bdecreases


cunpredictable


dnone of the above


View Answer increases

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


apressure


btemperature


cdensity


d absolute temperature



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


a sink to bottom


bfloat over fluid


cpartly immersed


dbe fully immersed with top surface at fluid surface



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


aincreases


bdecreases


c remains unaffected


dunpredictable


View Answer decreases

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


aVenturimeter


bOrifice plate


chot wire anemometer


d pitot tube


View Answer pitot tube

Mercury is often used in barometer because _________________?


ait is the best liquid


bthe height of barometer will be less


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


d both B. and C.


View Answer both B. and C.

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


aVenturimeter


bOrifice plate


crotameter


d pitot tube


View Answer pitot tube

Barometer is used to measure__________________?


apressure in pipes, channels etc.


b atmospheric pressure


cvery low pressure


drain level



In an isothermal atmosphere, the pressure__________________?


adecreases linearly with elevation


bremains constant


c varies in the same way as the density


dunpredictable



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