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Mechanical Engineering - Hydraulics and Fluid Mechanics

Exercise : Hydraulics and Fluid Mechanics - Section 1
46.
The weight per unit volume of a liquid at a standard temperature and pressure is called
specific weight
mass density
specific gravity
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
The centre of buoyancy is the centre of area of the immersed body.
Correct
Incorrect
Answer: Option
Explanation:
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48.
The metacentric heights of two floating bodies A and B are 1 m and 1.5 m respectively. Select the correct statement.
The bodies A and B have equal stability
The body A is more stable than body B
The body B is more stable than body A
The bodies A and B are unstable
Answer: Option
Explanation:
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49.
In open channels, the specific energy is the
total energy per unit discharge
total energy measured with respect to the datum passing through the bottom of the channel
total energy measured above the horizontal datum
kinetic energy plotted above the free surface of water
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
The Bernoulli's equation is based on the assumption that
there is no loss of energy of the liquid flowing
the velocity of flow is uniform across any cross-section of the pipe
no force except gravity acts on the fluid
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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