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When the lower temperature is fixed how can the c.o.p of a refrigerating machine be improved?
asked
Oct 4, 2017
in
RAC
by
chandu
(
215k
points)
iasprelims
2005
rac
refrigeration-system-equipment
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0
answers
A Bell – Coleman air refrigeration system operates on which one of the following cycles?
asked
Oct 4, 2017
in
RAC
by
chandu
(
215k
points)
iasprelims
2005
rac
refrigeration-cycles
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What is the approximate value of the dryness fractions of the steam sample?
asked
Oct 4, 2017
in
RAC
by
chandu
(
215k
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iasprelims
2005
pure-substances
rac
0
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0
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An Electrolux system of refrigeration has
asked
Oct 4, 2017
in
RAC
by
chandu
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215k
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iasprelims
2005
rac
refrigeration-system-equipment
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Match List – I with List – II and select the correct answer using the codes given below
asked
Oct 4, 2017
in
RAC
by
chandu
(
215k
points)
iasprelims
2004
rac
refrigeration
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0
answers
What is the air temperature decreases if the specific heat of humid air
asked
Oct 4, 2017
in
RAC
by
chandu
(
215k
points)
iasprelims
2004
rac
psychrometry
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0
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If moist air is sensibly cooled above its dew point which of the following statements are correct?
asked
Oct 4, 2017
in
RAC
by
chandu
(
215k
points)
iasprelims
2004
rac
properties-of-moist-air
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0
answers
Which of the featured of expansion valves in the following lists are correctly matched?
asked
Oct 4, 2017
in
RAC
by
chandu
(
215k
points)
iasprelims
2004
refrigeration-system-equipment
rac
0
votes
0
answers
In order to cool and dehumidify a stream of moist air it must be passed over a coil at a temperature
asked
Oct 4, 2017
in
RAC
by
chandu
(
215k
points)
iasprelims
2004
rac
properties-of-moist-air
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0
answers
What are the relative humidity and humidity ratio of the moist air, respectively?
asked
Oct 4, 2017
in
RAC
by
chandu
(
215k
points)
iasprelims
2004
rac
properties-of-moist-air
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votes
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When does L.P. cut – off occur in a refrigeration system?
asked
Oct 4, 2017
in
RAC
by
chandu
(
215k
points)
iasprelims
2004
rac
refrigeration-system-equipment
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votes
0
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In on - off control refrigeration system , which one of the following expansion devices is used?
asked
Oct 4, 2017
in
RAC
by
chandu
(
215k
points)
iasprelims
2004
rac
refrigeration-system-equipment
0
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0
answers
Coils of concentric cylindrical helical springs
asked
Oct 4, 2017
in
RAC
by
chandu
(
215k
points)
iasprelims
2004
som&md
sfd&bm
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C.O.P. of refrigeration system decreases with decrease in evaporator temperature
asked
Oct 4, 2017
in
RAC
by
chandu
(
215k
points)
iasprelims
2004
refrigeration
rac
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0
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Power consumed by the cycle will
asked
Oct 3, 2017
in
RAC
by
chandu
(
215k
points)
iasprelims
2004
rac
refrigeration
0
votes
0
answers
During the period how does the compressor power requirement vary?
asked
Oct 3, 2017
in
RAC
by
chandu
(
215k
points)
iasprelims
2004
rac
refrigeration-system-equipment
0
votes
0
answers
Which one of the following statements is true for effective temperature, ET?
asked
Oct 1, 2017
in
RAC
by
chandu
(
215k
points)
iasprelims
2004
rac
effective-temperature
0
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0
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Total heat transfer from a wetted surface depends upon?
asked
Sep 7, 2017
in
RAC
by
chandu
(
215k
points)
iasprelims
2003
rac
psychrometry
0
votes
0
answers
Dehumidifier coil surface temperature lies between dew point and freezing point temperature
asked
Sep 7, 2017
in
RAC
by
chandu
(
215k
points)
iasprelims
2003
rac
psychrometry
0
votes
0
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The COP of a heat pump is greater than that of a refrigerating machine operating at same temperatures
asked
Sep 1, 2017
in
RAC
by
chandu
(
215k
points)
iasprelims
2002
rac
heat-pumps
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