Mechanical Engineering - Hydraulics and Fluid Mechanics
Exercise :: Hydraulics and Fluid Mechanics - Section 5
1.
A glass tube of small diameter (d ) is dipped in fluid. The height of rise or fall in the tube given by (where w = Specific weight of liquid, α = Angle of contact of the liquid surface, and σ = Surface tension)
Answer: Option C
Explanation:
2.
An internal mouthpiece is said to be running free if the length of the mouthpiece is __________ the diameter of the orifice.
A. less than twice B. more than twice C. less than three times D. more than three times
Answer: Option C
Explanation:
3.
The discharge over a rectangular notch is
A. inversely proportional to H 3/2 B. directly proportional to H 3/2 C. inversely proportional to H 5/2 D. directly proportional to H 5/2
Answer: Option B
Explanation:
4.
The volume of a fluid __________ as the pressure increases.
A. remains same B. decreases C. increases
Answer: Option B
Explanation:
5.
The pressure of the liquid flowing through the divergent portion of a venturimeter
A. remains constant B. increases C. decreases D. depends upon mass of liquid
Answer: Option C
Explanation:
