1
GATE ME 2014 Set 4
Numerical
+1
-0
A reversed Carnot cycle refrigerator maintains a temperature of $$ - {5^ \circ }C.$$ The ambient air temperature is $${35^ \circ }C.$$ The heat gained by the refrigerator at a continuous rate is $$2.5$$$$kJ/s.$$ The power (in watt) required to pump this heat out continuously is _____________.
Your input ____
2
GATE ME 2005
MCQ (Single Correct Answer)
+1
-0.3
The following four figures have been drawn to represent a fictitious thermodynamic cycle, on the $$P$$-$$v$$ and $$T$$-$$S$$ plates GATE ME 2005 Thermodynamics - Second Law of Thermodynamics Question 22 English 1 GATE ME 2005 Thermodynamics - Second Law of Thermodynamics Question 22 English 2

According to the first law of thermodynamics, equal areas are enclosed by

A
figures $$1$$ and $$2$$
B
figures $$1$$ and $$3$$
C
Figures $$1$$ and $$4$$
D
figures $$2$$ and $$3$$
3
GATE ME 2003
MCQ (Single Correct Answer)
+1
-0.3
An industrial heat pump operates between the temperatures of $${27^ \circ }C$$ and $$ - {13^ \circ }C.$$ The rates of heat addition and heat rejection are $$750$$ $$W$$ and $$1000$$ $$W,$$ respectively. The $$COP$$ for the heat pump is
A
$$7.5$$
B
$$6.5$$
C
$$4.0$$
D
$$3.0$$
4
GATE ME 1995
MCQ (Single Correct Answer)
+1
-0.3
Consider a refrigerator and a heat pump working on the reversed Carnot cycle between the same temperature limits. Which of the following is correct?
A
$$COP$$ refrigerator $$= COP$$ of heat pump
B
$$COP$$ of refrigerator $$= COP$$ of heat pump $$+ 1$$
C
$$COP$$ of refrigerator $$= COP$$ of heat pump $$- 1$$
D
$$COP$$ of refrigerator $$=$$ inverse $$COP$$ of heat pump
GATE ME Subjects
Turbo Machinery
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12