This set of Chemical Process Calculation Multiple Choice Questions & Answers (MCQs) focuses on “Kinetic and Potential Energy”.
1. Energy a system possesses because of its velocity relative to the surrounding is
a) Kinetic Energy
b) Potential Energy
c) Work
d) None of the mentioned
View Answer
Explanation: Energy a system possesses because of its velocity relative to the surrounding is Kinetic Energy.
2. A system is at rest, the kinetic energy of the system is
a) Infinite
b) Greater than zero
c) Less than zero
d) Zero
View Answer
Explanation: A resting body have no velocity and kinetic energy.
3. A 5 Kg body is having a Kinetic energy of 250 J. What is the velocity of the body?
a) 10 m/s
b) 15 m/s
c) 20 m/s
d) 40 m/s
View Answer
Explanation: K.E. = mv2/2 .
4. What is the specific kinetic energy of a particle, having a velocity 5 m/s?
a) 12.5 J
b) 25 J
c) 50 J
d) 100 J
View Answer
Explanation: Specific Kinetic Energy = v2/2.
5. What is the unit of Specific kinetic energy?
a) J
b) J/kg
c) Pa
d) N
View Answer
Explanation: Specific kinetic energy is kinetic energy unit mass, Unit is J/Kg.
6. Water is pumped from a storage tank through a tube of 4 cm inner diameter at the rate of 0.002 m3/sec. What is the specific kinetic energy of the water in the tube?
a) 0.26 J/Kg
b) 1.26 J/Kg
c) 2.26 J/Kg
d) None of the mentioned
View Answer
Explanation: Specific Kinetic Energy = v2/2, v = Flow rate*Area of the tube.
7. Energy a system possesses because of the force exerted on its mass by a gravitational or electromagnetic field with respect to a reference surface.
a) Kinetic Energy
b) Potential Energy
c) Work
d) None of the mentioned
View Answer
Explanation: Potential energy is the Energy a system possesses because of the force exerted on its mass by a gravitational or electromagnetic field with respect to a reference surface.
8. Specific Potential energy is
a) mgh
b) gh
c) h
d) None of the mentioned
View Answer
Explanation: Specific potential energy = gh.
9. A mass is at 30 m of height from its reference point. What is the specific potential energy of the mass?
a) 294
b) 394
c) 495
d) 594
View Answer
Explanation: Specific potential is the potential energy of the unit mass.
10. What is the potential energy of a 2 kg mass having a height of 40 m from its reference point.
a) 287
b) 784
c) 487
d) 847
View Answer
Explanation: PE = mgh.
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.