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Engineering
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ME Set-1
Hydraulics and fluid mechanics
140

Hydraulics and fluid mechanics MCQ with Answers

140) When a body is placed over a liquid, it will sink down if

gravitational force is equal to the upthrust of the liquid

gravitational force is less than the upthrust of the liquid

gravitational force is more than the upthrust of the liquid

none of the above

Answer is:

gravitational force is more than the upthrust of the liquid

Hydraulics and fluid mechanics MCQ with Answers

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Related Hydraulics and fluid mechanics MCQ with Answers

141) A flow whose streamline is represented by a curve, is called

one-dimensional flow

two-dimensional flow

three-dimensional flow

four-dimensional flow

Answer is:

two-dimensional flow

A flow whose streamline is represented by a curve, is called

142) When the Mach number is less than unity, the flow is called

sub-sonic flow

sonic flow

super-sonic flow

hyper-sonic flow

Answer is:

sub-sonic flow

143) When the end contractions of the weir are suppressed, then number of end contractions (n) are taken as zero

Agree

Disagree

Answer is:

Agree

144) A flow is called hyper-sonic, if the Mach number is

less than unity

unity

between 1 and 6

none of these

Answer is:

none of these

Hydraulics and fluid mechanics MCQ with Answers

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