Chemical Engineering - Fluid Mechanics

6.
At what value of crank angle (roughly), no flow of water from or into the air vessel takes place in case of a double acting reciprocating pump ?
40° and 140°
45° and 60°
90° and 80°
20° and 120°
Answer: Option
Explanation:
No answer description is available. Let's discuss.

7.
The range of a particular rotameter can be increased by
use of floats of different densities.
no means.
increasing the diameter of the float.
decreasing the diameter of the float.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

8.
Which of the following is dimensionless ?
Angular velocity
Fanning friction factor
Specific volume
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

9.
A liquid is pumped at the rate of 600 litres using 1000 rpm. If the rpm is changed to 1100, the liquid pumped is __________ litres.
600
660
1.1
60
Answer: Option
Explanation:
No answer description is available. Let's discuss.

10.
A compressor that takes suction at a pressure below atmospheric and discharge against atmospheric pressure is called a __________ pump.
sump
volute
vacuum
submerged
Answer: Option
Explanation:
No answer description is available. Let's discuss.