Chemical Process Calculation Questions and Answers – Pressure and Hydrostatic Head-III

This set of Chemical Process Calculation Test focuses on “Pressure and Hydrostatic Head-III”.

1. If a pressure of 400 Pa acts on 20 m2 area, what is the value force?
a) 2 KN
b) 4 KN
c) 6KN
d) 8KN
View Answer

Answer: d
Explanation: Force = Pressure*Area.

2. Given that both liquid A and liquid B exert the same amount of pressure, what would be the height of column of liquid A if the density of liquid A is twice the density of liquid B and the height of column of liquid B is 10 cm?
a) 5 cm
b) 10 cm
c) 20 cm
d) None of the above
View Answer

Answer: a
Explanation: Dgh = Constant.

3. Atmospheric pressure is the pressure at a point due to the weight of the air above it.
Above given statement is
a) Incorrect
b) Correct
c) Partially correct
d) None of the mentioned
View Answer

Answer: b
Explanation: Atmospheric pressure is the pressure at a point due to the weight of the air above it.
advertisement
advertisement

4. 25 psia is equal to
a) 25.88 in Hg
b) 50.88 in Hg
c) 75.88 in Hg
d) 100.88 in Hg
View Answer

Answer: b
Explanation: 25 psia = (25*29.92)/14.7 = 50.88 Hg.

5. 40 psia equals
a) 175.64 kPa
b) 275.64 kPa
c) 375.64 kPa
d) 475.64 kPa
View Answer

Answer: b
Explanation: 40 psia = (40*101.3)/14.7.
Note: Join free Sanfoundry classes at Telegram or Youtube

6. 56 in Hg equals
a) 13.76 psia
b) 27.52 psia
c) 28.56 psia
d) 57.12 psia
View Answer

Answer: b
Explanation: 56 in Hg = (56*14.7)/29.92 = 27.52 psia.

7. 1 atm pressure equals to
a) 29.92 in Hg
b) 25.65 in Hg
c) 27.68 in Hg
d) 24.74 in Hg
View Answer

Answer: a
Explanation: 1 atm = 29.92 in Hg.
advertisement

8. 760 mm Hg equals
a) 33.94 ft H2O
b) 22.56 ft H2O
c) 11.24 ft H2O
d) None of the mentioned
View Answer

Answer: a
Explanation: 760 mm Hg = 1 atm = 33.94 ft H2O.

9. Piezometer is used for the pressure measurement of only _______
a) Solid
b) Liquid
c) Gas
d) None of the mentioned
View Answer

Answer: b
Explanation: Piezometer is used for the pressure measurement of only liquid.
advertisement

10. If the open end manometer`s open end is closed and in the blank area there is vacuum. The manometer measures
a) Absolute pressure
b) Gauge pressure
c) Atmospheric pressure
d) Vacuum
View Answer

Answer: a
Explanation: If the open end manometer`s open end is closed and in the blank area there is vacuum. The manometer measures absolute pressure.

Sanfoundry Global Education & Learning Series – Chemical Process Calculation.
To practice all areas of Chemical Process Calculation for tests, here is complete set of 1000+ Multiple Choice Questions and Answers.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

advertisement
advertisement
Subscribe to our Newsletters (Subject-wise). Participate in the Sanfoundry Certification contest to get free Certificate of Merit. Join our social networks below and stay updated with latest contests, videos, internships and jobs!

Youtube | Telegram | LinkedIn | Instagram | Facebook | Twitter | Pinterest
Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

Subscribe to his free Masterclasses at Youtube & discussions at Telegram SanfoundryClasses.