Mechanical Engineering - Hydraulics and Fluid Mechanics
Exercise :: Hydraulics and Fluid Mechanics - Section 7
1.
The specific gravity of an oil whose specific weight is 7.85 kN/m3 , is
Answer: Option A
Explanation:
2.
The body will float if the force of buoyancy is __________ the weight of the liquid displaced.
A.
equal to B.
less than C.
more than
Answer: Option C
Explanation:
3.
According to Darcy's formula, the loss of head due to friction in the pipe is (where f = Darcy's coefficient, l = Length of pipe, v = Velocity of liquid in pipe, and d = Diameter of pipe)
Answer: Option A
Explanation:
4.
The ratio of specific weight of a liquid to the specific weight of pure water at a standard temperature is called
A.
density of liquid B.
specific gravity of liquid C.
compressibility of liquid D.
surface tension of liquid
Answer: Option B
Explanation:
5.
The velocity of liquid flowing through an orifice varies with the available head of the liquid.
Answer: Option A
Explanation: