Chemical Engineering — Test 137
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Question 1
Cd, Cc and Cv are related (for flow through an orifice) as (where, Cd = discharge co-efficient, Cc = co-efficient of contraction = (area of jet at vena-contracta/area of opening), Cv = co-efficient of velocity = (actual velocity at vena-contracta/theoretical velocity)?
Question 2
A pipe of I.D. 4 m is bifurcated into two pipes of I.D. 2 m each. If the average velocity of water flowing through the main pipe is 5 m/sec, the average velocity through the bifurcated pipes is__________________?
Question 3
Pick out the Hagen-Poiseuille‟s equation ?
Question 4
The pressure head of a flow meter remains constant for_________________?
Question 5
Which of the following quantities are computed by using the hydraulic radius for noncircular ducts ?
Question 6
A pressure head of 320 metres of water in meters of CCl4 (sp.gr = 1.6) will be__________________?
Question 7
For pipe flows, head is proportional to __________ at constant capacity(where, D = pipe diameter) ?
Question 8
Check in a centrifugal pump is________________?
Question 9
Reciprocating pumps are not able to compete with the centrifugal pump for industrial use, mainly because these pumps have_____________?
Question 10
In an incompressible fluid, the density is____________________?