Chemical Process Calculation Questions and Answers Part-3

1. Conversion factor to change inches in to cm. is
a) 1/2.54
b) 2.54
c) 1/12
d) 12

Answer: b
Explanation: 1 in. = 2.54 cm.

2. 3.5 mile is equal to
a) 18480 ft.
b) 2217600 in.
c) 56327 m
d) All of the mentioned

Answer: d
Explanation: 1 mile = 5280 ft., 1 ft. = 12 in., 1 in. = 2.54 cm.

3. The Pascal (Pa) unit of pressure can be written as:
a) N.m-2
b) mg/mL
c) MmHg
d) Kg .m2

Answer: a
Explanation: The Pascal (Pa) unit of pressure is Force/Area.

4. 1 bar pressure is equal to
a) 10 KN/m2
b) 100 KN/m2
c) 1000 KN/m2
d) 10000 KN/m2

Answer: b
Explanation: 1 bar pressure is equal to 100 KN/m2.

5. The below given distance units are arranged in an order of
nm, mm, dm, m, Km
a) Smallest to largest
b) Largest to smallest
c) Not arranged in any correct order
d) None of the mentioned

Answer: a
Explanation: The distance units are arranged in an order of smallest to largest.

6. Conversion factor 32.174 is mostly used for lbf to lbm or lbm to lbf conversion.
The above given statement is
a) Correct
b) Incorrect
c) The value conversion factor is not correct
d) None of the mentioned

Answer: a
Explanation: The conversion factor = 32.174 (ft)(lbm)/(s2)(lbf).

7. 30 mile/hour is equal to
a) 25.26 ft./sec
b) 35.36 ft./sec
c) 45.46 ft./sec
d) 55.56 ft./sec

Answer: c
Explanation: 1 mile = 5280 ft. and 1 hr. = 3600 sec.

8. 25 Kg is
a) 2.500 g
b) 2.5000 g
c) 55 lb
d) 0.055 lb

Answer: d
Explanation: 1 lb = 454 gm.

9. 28 lbm/ft. is eqal to
a) 41.7 kg/m
b) 41.7 g/cm
c) 41.7 g/ft
d) None of the mentioned

Answer: a
Explanation: 1 lbm = 454 gm, 1ft = 0.3084 m.

10. 100 gal is equal to
a) 378.5 L
b) 23100 cubic inch
c) 13.36 cubic inch
d) All of the mentioned

Answer: d
Explanation: 1 gal = 3.78541 L.