Chemical Engineering - Chemical Engineering Basics

11.
For a first order chemical reaction, the concentration of the reactant decreases __________ with time.
linearly
exponentially
logarithmically
inversely
Answer: Option
Explanation:
No answer description is available. Let's discuss.

12.
Air standard Otto cycle is more efficient than the diesel cycle for the same
heat addition & compression ratio.
heat addition & pressure.
compression ratio & pressure.
cylinder dimension & rpm.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

13.
In case of brasses, with decreasing zinc percentage and increasing copper percentage, its __________ increases.
percentage elongation
brinell hardness
tensile strength
all 'a' , 'b' & 'c'
Answer: Option
Explanation:
No answer description is available. Let's discuss.

14.
A suitable lubricant used for watches is
metallic soap solution
grease
palm oil
hazel-nut oil
Answer: Option
Explanation:
No answer description is available. Let's discuss.

15.
Out of the following __________ iron has the best capability to bear sudden & excessive shocks.
white
cast
wrought
pig
Answer: Option
Explanation:
No answer description is available. Let's discuss.