Engineering Questions with Answers - Multiple Choice Questions
Chemical Process Calculation MCQ’s – The Mechanical Energy balance
1 - Question
Energy in the system plus the surroundings is always
a) Conserved
b) Vary
c) Increasing
d) Decreasing
View Answer
Answer: a
Explanation: Energy in the system plus the surroundings is always Conserved.
2 - Question
Coefficient of performance the heat removed from a process divided by the work input to the process.
The given statement is
a) True
b) False
c) Can`t say
d) None of the mentioned
View Answer
Answer: a
Explanation: Energy in the system plus the surroundings is always Conserved.
3 - Question
An idealized process in which changes occur under a differential imbalance in temperature, pressure etc. is called
a) Reversible process
b) Irreversible process
c) Ideal process
d) None of the mentioned
View Answer
Answer: a
Explanation: An idealized process in which changes occur under a differential imbalance in temperature, pressure etc. is called Reversible process.
4 - Question
________________ is the type of energy that can be completely converted from one form to another.
a) Chemical Energy
b) Electrical Energy
c) Mechanical Energy
d) None of the mentioned
View Answer
Answer: c
Explanation: Mechanical Energy is the type of energy that can be completely converted from one form to another.
5 - Question
Bernoulli equation is applicable for a _________state process.
a) Steady
b) Un-steady
c) Equilibrium
d) None of the mentioned
View Answer
Answer: d
Explanation: Bernoulli equation is applicable for a steady state process.
6 - Question
Mechanical efficiency is the actual work output from a process divided by the work output if the process were reversible.
The given statement is
a) True
b) False
c) Can`t say
d) None of the mentioned
View Answer
Answer: a
Explanation: Mechanical efficiency is the actual work output from a process divided by the work output if the process were reversible.
7 - Question
Heat engine efficiency the actual ________ output from a process divided by the _______ input from a source.
a) Work, Heat
b) Heat, Work
c) Work, Work
d) Heat, Heat
View Answer
Answer: a
Explanation: Heat engine efficiency the actual work output from a process divided by the heat input from a source.
8 - Question
__________ is the ratio of the work done by an organism or machine to the amount of food or fuel consumed and/or to the energy expanded.
a) Efficiency
b) Work power
c) Heat capacity
d) None of the mentioned
View Answer
Answer: a
Explanation: Efficiency is the ratio of the work done by an organism or machine to the amount of food or fuel consumed and/or to the energy expanded.
9 - Question
Mechanical form of energy is
a) Work
b) Kinetic energy
c) Potential energy
d) All of the mentioned
View Answer
Answer: d
Explanation: Work, Kinetic energy and Potential energy, all are the form of Mechanical energy.
10 - Question
Mechanical energy is completely convertible by a __________engine from one form to another within the class.
a) Reversible
b) Irreversible
c) Steady
d) None of the mentioned
View Answer
Answer: d
Explanation: Mechanical energy is completely convertible by an ideal (reversible) engine from one form to another within the class.