This set of Steam and Gas Turbines Multiple Choice Questions & Answers (MCQs) focuses on “Regenerator Types and Mean Temperature Difference”.
1. In rotary regenerators matrix is __________
a) constant
b) varying
c) zero
d) none of the mentioned
View Answer
Explanation: In rotary regenerators matrix rotates continuously.
2. In rotary regenerators matrix is ________
a) isothermal
b) isochoric
c) constant pressure process
d) none of the mentioned
View Answer
Explanation: In rotary regenerators matrix is isothermal.
3. In rotary regenerators rotation is _________ to the flow direction.
a) parallel
b) perpendicular
c) concurrent
d) none of the mentioned
View Answer
Explanation: In rotary regenerator rotation is always perpendicular to the flow direction.
4. In rotary regenerator rotation is __________ to the temperature gradient.
a) parallel
b) congruent
c) perpendicular
d) none of the mentioned
View Answer
Explanation: In rotary regenerator rotation is always perpendicular to both temperature gradient and flow direction.
5. In rotary regenerators fluid temperature is __________ across the flow area.
a) constant
b) varying
c) zero
d) none of the mentioned
View Answer
Explanation: In rotary regenerators fluid temperature varies across the flow area.
6. In fixed matrix regenerator the fluid is ducted to the valves to flow through various matrices.
a) True
b) False
View Answer
Explanation: In fixed matrix regenerator the fluid is ducted to the valves to flow through various matrices.
7. Outlet temperatures of fixed matrix regenerator is ______ with time.
a) constant
b) varying
c) zero
d) none of the mentioned
View Answer
Explanation: Outlet temperatures of the fixed matrix regenerator varies with time.
8. Micro scale regenerator has multi grating structure.
a) True
b) False
View Answer
Explanation: Micro scale regenerator has multi grating structure.
9. In micro scale regenerator each layer is _______ from the adjacent layer.
a) equal
b) subset
c) offset
d) none of the mentioned
View Answer
Explanation: In micro scale regenerator each layer is offset from the adjacent layer.
10. Rothemuhle regenerator has a _______ matrix in a disk shape.
a) moving
b) fixing
c) no matrix
d) none of the mentioned
View Answer
Explanation: Rothemuhle regenerator has a fixed matrix in a disk shape.
Sanfoundry Global Education & Learning Series – Steam and Gas Turbines.
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