Chemical Engineering - Chemical Engineering Basics
Exercise :: Chemical Engineering Basics - Section 3
11.
Baffles provided on the shell side of a shell and tube heat exchanger are meant for
A.
providing support for the tubes. B.
improving heat transfer. C.
both 'a' & 'b'. D.
preventing the fouling of tubes & stagnation of shell side fluid.
Answer: Option C
Explanation:
12.
When an isolated thermodynamic system executes a process,
A.
work is done. B.
heat transfer takes place. C.
mass flow occurs across the boundary of the system. D.
no chemical reaction takes place within the system.
Answer: Option D
Explanation:
13.
Brittleness induced due to the presence of sulphur in steel can be reduced by adding
A.
manganese B.
magnesium C.
vanadium D.
copper
Answer: Option A
Explanation:
14.
Atomic __________ of an element is a whole number.
Answer: Option B
Explanation:
15.
The boiling & freezing points on a newly defined temperature scale in degree 'D' are 400°D & 100°D respectively. The temperature reading corresponding to 60°C on this new temperature scale will be equal to __________ °D.
Answer: Option D
Explanation: