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:
