1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
An ideal gas heat engine operates in a Carnot cycle between 227oC and 127oC. It absorbs 6 kcal at the height temperature. The amount of heat (in kcal) converted into work is equal to
A
4.8
B
3.5
C
1.6
D
1.2
2
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
The efficiency of Carnot engine is 50% and temperature of sink is 500 K. If temperature of source is kept constant and its efficiency raised to 60%, then the required temperature of sink will be
A
100 K
B
600 K
C
400 K
D
500 K
3
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
A scientist says that the efficiency of his heat engine which work at source temperature 127oC and sink temperature 27oC is 26%, then
A
it is impossible
B
it is possible but less probable
C
it is quite probable
D
data are incomplete.
4
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
To find out degree of freedom, the expansion is
A
$$f = {2 \over {\gamma - 1}}$$
B
$$f = {{\gamma + 1} \over 2}$$
C
$$f = {2 \over {\gamma + 1}}$$
D
$$f = {1 \over {\gamma + 1}}$$
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