HYDRAULICS

Q: Atmospheric pressure varies with

(a) :  altitude
(b) :  temperature
(c) :  weather conditions
(d) :  all of the above
(e) :  None of these
Answer:  all of the above
Explanation:  

Q: A rise or fall of liquid in a glass tube of a very small diameter when dipped is

(a) :  directly proportional to the force per unit length of periphery
(b) :  direcly proportional to the sine of the angle of contact
(c) :  directly proportional to the specific weight of liquid
(d) :  nversely proportional to the diameter of the glass tube.
(e) :  None of these
Answer:  directly proportional to the specific weight of liquid
Explanation:  

Q: Non-over flow double curvature concrete arch, is provided in

(a) :  Bhakra dam
(b) :  Hirakund dam
(c) :  Nagarjuna Sagar dam
(d) :  Iddiki dam
(e) :  None of these
Answer:  Iddiki dam
Explanation:  

Q: The ratio of maximum velocity to average velocity of viscous fluid through a circular pipe is

(a) :  0.5
(b) :  0.75
(c) :  1.25
(d) :  2
(e) :  None of these
Answer:  2
Explanation:  

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