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TRIGONOMETRY PART 2 ORIGINAL QUESTIONS PAPER QUES FOR DIPLOMA STUDENTS FOR All STATES STUDENTS

Trigonometry part 2 Assignment sheet for all Dono part ke answer aaj evening tak degye

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The thermal efficiency of a standard Otto cycle for a compression ratio of 5.5 will be
a) 25%
b) 50%
c) 70%
d) 100%


2. The efficiency of an Otto cycle is increased by increasing
a) pressure ratio
b) compression ratio
c) temperature ratio
d) none of the mentioned


3. The Otto cycle consists of
a) two constant pressure processes and two constant volume processes
b) two constant pressure and two constant entropy processes
c) two constant volume processes and two constant entropy processes
d) none of the mentioned


4. The thermal efficiency of theoretical Otto cycle
a) decreases with increase in compression ratio
b) increases with decrease in compression ratio
c) does not depends upon the pressure ratio
d) none of the mentioned


5. The work output of theoretical Otto cycle
a) increases with increase in compression ratio
b) increases with increase in pressure ratio
c) both of the mentioned
d) none of the mentioned

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6. The mean effective pressure of an Otto Cycle increases with an increase in
a) pressure ratio
b) compression ratio
c) temperature ratio
d) none of the mentioned


7. In Otto cycle, heat addition takes place at
a) constant temperature
b) constant pressure
c) constant volume
d) none of the mentioned


8. If compression ratio of an engine working on Otto cycle is increased from 5 to 6, its air standard efficiency will increase by
a) 1%
b) 20%
c) 16.67%
d) 8%


9. If compression ratio of an engine working on Otto cycle is increased from 5 to 7, the percentage increase in efficiency will be
a) 2%
b) 4%
c) 8%
d) 14%


10. The constant volume cycle is also called
a) Carnot cycle
b) Joule cycle
c) Diesel cycle
d) Otto cycle

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