DAY 2

Question 1

Removable connection of tubes to the tube sheet is called
A. Ferrule
C. Socket
B. Nipple
D. Saddle

Answer 1

A

Question 2

Which of the following is the dynamic characteristics of an instrument?
A. Reproducibility C. Dead zone
B. Sensitivity D. Fidelity

Answer 2

D

Question 3

The pipe joint mostly used for pipes carrying water at low pressures is
A. socket joint C. union joint
B. nipple joint D. spigot and socket joint

Answer 3

A

Question 4

Fresh water carrying pipelines in chemical industries are color with __________ color.
A. sea green C. brown
B. yellow D. red

Answer 4

A

Question 5

The purpose of tanning in leather industry is to
A. stiffen the leather.
B. smoothen the leather.
C. make it flexible.
D. impart water resistance.

Answer 5

A

Question 6

Zirconia probe is used for the continuous
measurment of, flue gases going out of
the furnace.
A. oxygen in
B. carbon dioxide in
C. carbon monoxide in
D temperature of

Answer 6

A

Question 7

The reaction, C + CO2 +> 2C0, taking place during
coal gasification is called the
reaction.
A. Neumann reversal
B. shift conversion
C. Boudouard
D reduction

Answer 7

C

Question 8

A countercurrent extraction battery
is used to extract NaOH
from theoretical feed of NaOH and CaCO3 produced by the causticization of lime
but with 4 lb H20 per 1b CacO3.
The final extract solution is to contain 10%
NaOH on recovery of 98% of the NaOH. How many theoretical stages will be
required? The underflow may be assumed constant at 2 lb solution per
CaCO3

Answer 8

4

Question 9

If the operation of the extraction units could be improved so that the
underflow contained only 1 lb solution per lb CaCO3, how many stages would
be required?

Answer 9

3