IC Engine Questions and Answers – Dual Cycle

This set of IC Engines Multiple Choice Questions & Answers (MCQs) focuses on “Dual Cycle”.

1. Dual Cycle is a combination of ____________
a) Otto cycle and Diesel cycle
b) Otto cycle and Stirling cycle
c) Brayton cycle and steam cycle
d) None of the mentioned
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2. Dual cycle is also known as ____________
a) Diesel cycle
b) Joule cycle
c) Mixed cycle
d) None of the mentioned
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3. In Dual cycle, heat addition takes place ____________
a) at Constant volume
b) first at constant volume then at constant pressure
c) constant pressure
d) none of the mentioned
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4. In Dual cycle, heat rejection takes place ____________
a) at constant volume
b) first at constant volume then at constant pressure
c) constant pressure
d) none of the mentioned
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5. Most high speed compression engines operate on ____________
a) Otto cycle
b) Diesel Cycle
c) Dual cycle
d) Carnot cycle
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6. In a standard dual air cycle, for a fixed amount of heat supplied and a fixed value of compression ratio, the mean effective pressure ____________
a) shall increase with increase in r_p and decreases in r_c
b) shall increase with decrease in r_p and increases in r_c
c) shall remain independent of r_p
d) shall remain independent of r_c
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7. The thermal efficiency of a diesel engine on weak mixtures is ____________
a) unaffected
b) lower
c) higher
d) none of the mentioned
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8. The volumetric efficiency of a well designed engine may be ____________
a) 30 to 40%
b) 40 to 60%
c) 60 to 70%
d) 75 to 90%
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Sanfoundry Global Education & Learning Series – IC Engine.

To practice all areas of IC Engine, here is complete set of 1000+ Multiple Choice Questions and Answers.

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