Exercise: Ic Engines And Nuclear Power Plants

Questions for: Ic Engines And Nuclear Power Plants

As compared to air standard cycle, in actual working, the effect of variation in specific heats is to
A:
increase maximum pressure and maximum temperature
B:
reduce maximum pressure and maximum temperature
C:
increase maximum pressure and decrease maximum temperature
D:
decrease maximum pressure and increase maximum temperature
Answer: B
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Enriched uranium is required as a fuel in a nuclear reactor, if light water is used as moderator and coolant, because light water has
A:
high neutron absorption cross-section
B:
low moderating efficiency
C:
high neutron scatter cross-section
D:
low neutron absorption cross-section
Answer: B
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Which of the following statement is correct regarding normal cetaine?
A:
It is a standard fuel used for knock rating of diesel engines.
B:
Its chemical name is normal-hexadecane.
C:
It has long carbon chain structure.
D:
all ofthe above
Answer: D
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In a coil ignition system of petrol engines, a condenser is connected across the contact-breaker in order to
A:
prevent sparking across the gap between the points
B:
cause more rapid break of the primary current, giving a higher voltage in the secondary circuit
C:
both (a) and (b)
D:
none of the above
Answer: C
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If the temperature of intake air in internal combustion engine increases, then its efficiency will
A:
remain same
B:
decrease
C:
increase
D:
Answer: B
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