Chemical Process Calculation Questions and Answers – Energy Balances – Work – I

This set of Chemical Process Calculation Multiple Choice Questions & Answers (MCQs) focuses on “Energy Balances – Work – I”.

1. _____________ is the form of energy that represents a transfer of energy between the system and surrounding.
a) Potential energy
b) Kinetic energy
c) Work
d) None of the mentioned
View Answer

Answer: c
Explanation: Work is the form of energy that represents a transfer of energy between the and surrounding.

2. Work ______ be stored.
a) Can
b) Can not
c) always can
d) None of the mentioned
View Answer

Answer: b
Explanation: Work cannot be stored.

3. Work is a ______________ variable.
a) Path
b) State
c) Neither Path nor State
d) None of the mentioned
View Answer

Answer: a
Explanation: Work is a Path variable.
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4. When surrounding perform a work on the system, work is
a) Positive
b) Negative
c) Zero
d) None of the mentioned
View Answer

Answer: a
Explanation: When surrounding perform a work on the system, work is Positive.

5. Work is negative when ________ performs a work on the ____________________
a) System, Surrounding
b) Surrounding, System
c) System, System
d) Surrounding, Surrounding
View Answer

Answer: a
Explanation: Work is negative when System performs a work on the surrounding.
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6. Which one is not a type of work?
a) Mechanical work
b) Electrical work
c) Shaft work
d) All of the mentioned
View Answer

Answer: d
Explanation: Mechanical, Electrical and Shaft are kind of work.

7. _______________ work that occurs because of a ________ force that moves the boundary of a system.
a) Mechanical, Mechanical
b) Electrical, Electrical
c) Shaft, Shaft
d) Flow, Flow
View Answer

Answer: a
Explanation: Mechanical work that occurs because of a Mechanical force that moves the boundary of a system.
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8. If a system generates electric current and the current is passed through a resistance outside the system. The work done is
a) Positive
b) Negative
c) Zero
d) None of the mentioned
View Answer

Answer: b
Explanation: Work is done on the surrounding.

9. If electric work is done inside the system because of an applied voltage from outside the system, work done is ______________
a) Positive
b) Negative
c) Zero
d) None of the mentioned
View Answer

Answer: a
Explanation: This time work is done on the system.
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10. _________ occurs when an electric current passes through an electric resistance in the circuit.
a) Mechanical work
b) Electrical work
c) Shaft work
d) Flow work
View Answer

Answer: b
Explanation: Electrical work occurs when an electric current passes through an electric resistance in the circuit.

Sanfoundry Global Education & Learning Series – Chemical Process Calculation.
To practice all areas of Chemical Process Calculation, 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]

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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.

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