Steam and Gas Turbines Multiple Choice Questions on “The Regenerator”.
1. In regenerator energy is stored in ___________
a) gas medium
b) fluid medium
c) thermal medium
d) none of the mentioned
Answer: b
Clarification: In regenerator energy is stored in the thermal medium.
2. Both hot and cold fluid used in regenerators is __________
a) same fluid
b) different fluid
c) depending on the situation
d) none of the mentioned
Answer:a
Clarification: Both hot and cold fluid used in regenerators is the same fluid.
3. Heat regenerators are ___________
a) dependent
b) repetitive
c) costant
d) none of the mentioned
Answer: c
Clarification: Heat regenerators are repetitive.
4. Rotatary regenerators are _________ flow path.
a) parallel
b) counter flow path
c) repetitive
d) none of the mentioned
Answer: b
Clarification: Rotatry regenerators have counter flow path.
5. In a fixed matrix regenerator flow is __________
a) reversible
b) irreversible
c) repetitive
d) none of the mentioned
Answer: a
Clarification: In a fixed matrix regenerator flow is reversible. In fixed matrix regenerator flow can be in both directions depending on the requirement.
6. In a fixed flow regenerator flow is __________
a) repetitive
b) counter
c) parallel
d) none of the mentioned
Answer: c
Clarification: In a fixed flow regenerator flow is counter current.
7. Fixed matrix regenerator is a part of ________ system.
a) valveless
b) valve
c) depending on the requirement
d) none of the mentioned
Answer: a
Clarification: Fixed matrix regenerators is a part of valveless system. In fixed matrix flow is reversible.
8. Rothemuhle regenerator has same design of _________ regenerator.
a) fixed matrix
b) varying matrix
c) varying & fixed matrix
d) none of the mentioned
Answer: a
Clarification: Rothemuhle regenerator has same design of fixed matrix regenerator.
9. Regenerators used in cryogenics are ________
a) small
b) large
c) medium
d) none of the mentioned
Answer: b
Clarification: Regenerators used in cryogenics are large. Cryogenic engines require large structures.
10. Regenerators have lower surface area than recuperator.
a) True
b) False
Answer: b
Clarification: Regenerators have higher surface area than recuperators.