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This section includes 18 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.
1. |
What is the efficiency of a heat engine with heat input 20 J and work output 5 J? |
A. | 25% |
B. | 50% |
C. | 75% |
D. | 100%View answer |
Answer» B. 50% | |
2. |
What is the efficiency of a heat engine with heat input 10 J and work output 7 J? |
A. | 30% |
B. | 70% |
C. | 100% |
D. | 140%View answer |
Answer» C. 100% | |
3. |
What is the efficiency of the system, if the actual work input from the process is 20 J and work input for a reversible process is 25 J? |
A. | 20% |
B. | 80% |
C. | 125% |
D. | 150%View answer |
Answer» D. 150%View answer | |
4. |
What is the efficiency of the system, if the actual work output from the process is 15 J and work output for a reversible process is 20 J? |
A. | 25% |
B. | 50% |
C. | 75% |
D. | 100%View answer |
Answer» D. 100%View answer | |
5. |
Energy out and Energy in of a system are 15 J and 25 J respectively, what is the efficiency of the system? |
A. | 40% |
B. | 60% |
C. | 80% |
D. | 110%View answer |
Answer» C. 80% | |
6. |
Energy out and Energy in of a system are 40 J and 25 J respectively, what is the efficiency of the system? |
A. | 40% |
B. | 80% |
C. | 160% |
D. | 200%View answer |
Answer» D. 200%View answer | |
7. |
Energy out and Energy in of a system are 10 J and 20 J respectively, what is the efficiency of the system? |
A. | 20% |
B. | 30% |
C. | 40% |
D. | 50%View answer |
Answer» E. | |
8. |
WHAT_IS_THE_EFFICIENCY_OF_THE_SYSTEM,_IF_THE_ACTUAL_WORK_INPUT_FROM_THE_PROCESS_IS_20_J_AND_WORK_INPUT_FOR_A_REVERSIBLE_PROCESS_IS_25_J??$ |
A. | 20% |
B. | 80% |
C. | 125% |
D. | 150% |
Answer» D. 150% | |
9. |
What is the efficiency of a heat engine with heat input 20 J and work output 5 J?$ |
A. | 25% |
B. | 50% |
C. | 75% |
D. | 100% |
Answer» B. 50% | |
10. |
What is the efficiency of a heat engine with heat input 10 J and work output 7 J?$ |
A. | 30% |
B. | 70% |
C. | 100% |
D. | 140% |
Answer» C. 100% | |
11. |
What is the coefficient of performance of a system, if its work input is 75 J and heat removed is 45 J? |
A. | 20% |
B. | 40% |
C. | 60% |
D. | 80% |
Answer» D. 80% | |
12. |
What is the coefficient of performance of a system, if its work input is 50 J and heat removed is 35 J? |
A. | 35% |
B. | 50% |
C. | 70% |
D. | 95% |
Answer» D. 95% | |
13. |
What is the efficiency of a heat engine with heat input 5 J and work output 8 J? |
A. | 40% |
B. | 80% |
C. | 160% |
D. | 200% |
Answer» D. 200% | |
14. |
What is the efficiency of the system, if the actual work input from the process is 10 J and work input for a reversible process is 20 J? |
A. | 20% |
B. | 50% |
C. | 100% |
D. | 200% |
Answer» E. | |
15. |
What is the efficiency of the system, if the actual work output from the process is 20 J and work output for a reversible process is 25 J? |
A. | 10% |
B. | 20% |
C. | 40% |
D. | 80% |
Answer» E. | |
16. |
What is the efficiency of the system, if the actual work output from the process is 10 J and work output for a reversible process is 40 J? |
A. | 10% |
B. | 25% |
C. | 40% |
D. | 65% |
Answer» C. 40% | |
17. |
Energy out and Energy in of a system are 5 J and 25 J respectively, what is the efficiency of the system? |
A. | 20% |
B. | 40% |
C. | 60% |
D. | 80% |
Answer» B. 40% | |
18. |
Energy out and Energy in of a system are 10 J and 25 J respectively, what is the efficiency of the system? |
A. | 10% |
B. | 40% |
C. | 50% |
D. | 80% |
Answer» C. 50% | |