This set of Steam and Gas Turbines Multiple Choice Questions & Answers (MCQs) focuses on “Sterling and Ideal Ericsson Cycle”.
1. Isoentropic processes in carnot cycle when replaced by constant volume process is called as _______
a) Dual cycle
b) Ericsson cycle
c) Stirling cycle
d) None of the mentioned
View Answer
Explanation: Isoentropic process in carnot cycle when replaced by constant volume process is called as Stirling process.
2. Stirling cycle is reversible.
a) True
b) False
View Answer
Explanation: Since isoentropic process in carnot cycle is replaced by constant volume process, Stirling cycle can be reversible.
3. Stirling cycle can also be called a closed regenerative cycle.
a) True
b) False
View Answer
Explanation: Since Stirling cycle is reversible and is a closed cycle it can also be called as closed regenerative cycle.
4. Stirling cycle can also be categorized as ________
a) internal heat engine
b) external heat engine
c) internal combustion engine
d) none of the mentioned
View Answer
Explanation: When work is supplied to Stirling engine, heating or cooling can be produced as per requirement, So Stirling cycle is categorized as an external heat engine.
5. Processes in Stirling cycle are _______________
a) Compression, Heat addition, Expansion, Heat removal
b) Compression, Heat addition, Expansion
c) Heat addition, Expansion, Heat removal
d) None of the mentioned
View Answer
Explanation: Stirling cycle consists of four processes. They are
Compression
Heat addition
Expansion
Heat removal.
6. Compression process that takes place in Stirling engine is _________
a) Constant volume
b) Isothermal
c) Constant pressure
d) None of the mentioned
View Answer
Explanation: In Stirling engine, Isothermal compression takes place.
7. In Stirling engine, pistons are arranged in __________
a) co-linear position
b) linear position
c) parallel position
d) none of the mentioned
View Answer
Explanation: In Stirling engines, co-linear pistons are arranged.
8. In Ericsson cycle, heat addition is done by ___________
a) none of the mentioned
b) isochoric heat addition
c) isothermal heat addition
d) isobaric heat addition
View Answer
Explanation: Heat addition is done by constant pressure process in Ericsson cycle.
9. Ericsson cycle is also known as external combustion engine.
a) True
b) False
View Answer
Explanation: In Ericsson cycle, combustion is done externally and hence it is called an external combustion engine.
10. Separated flow counter – current heat ex-changer is called as __________
a) aeriator
b) regenerator
c) economiser
d) recuperator
View Answer
Explanation: Recuperator can be referred as separated flow counter – current heat ex-changer.
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