Chemical Engineering - Process Equipment and Plant Design

11.
In the design of a paddle agitator, the ratiois normally taken as
0.1
0.8
0.25
0.5
Answer: Option
Explanation:
No answer description is available. Let's discuss.

12.
The design stress, which is more than the damaging stress, is the least unit stress that will render a member unfit for service before the end of its normal life. The design stress factor or factor of safety indicates the margin between design stress and the __________ stress.
working
damaging
allowable
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

13.
Hole diameter of the seive trays in the distillation column ranges from __________ mm.
lto3
4 to 8
3 to 12.5
12.5 to 18.5
Answer: Option
Explanation:
No answer description is available. Let's discuss.

14.
Factor of safety (i.e., overdesign factor) in heat transfer equipments is about __________ percent more than the actual/theoretical design factor.
5-10
15-20
30-35
35-40
Answer: Option
Explanation:
No answer description is available. Let's discuss.

15.
For annular flow of a fluid, the ratio of the equivalent diameter for pressure drop calculation to the equivalent diameter for heat transfer calculation is
Answer: Option
Explanation:
No answer description is available. Let's discuss.