Rajasthan Polytechnic Third Year Paper 2016 – Air Conditioning Application

Rajasthan Polytechnic Third Year Paper 2016 – Air Conditioning Application

Following type of compressor is used in car air conditioning system
(a) scroll compressor
(b) reciprocating compressor
(c) screw compressor
(d) swash plate compressor

Most commonly used refrigerant in automobile air conditioning is
(a) R-134 a
(b) Ammonia
(c) R-12
(d) Air

Which type of filters are used in operation theatre air conditioning?
(a) Pre filter
(b) Fine filter
(c) HEPA filter
(d) All of the above

100% fresh air is recommended for
(a) residential air conditioning
(b) hospital air conditioning
(c) industrial air conditioning
(d) textile air conditioning

Desired ventilation air rate for an operation room of a hospital is
(a) 15 ACPH
(b) 30 ACPH
(c) 1 ACPH
(d) 2 ACPH

Air pressure inside an infected room of a hospital should be maintained
(a) Possitive
(b) Negative
(c) Equal
(d) None of the above

Recommended relative humidity in a room for raw wood storage should be
(a) 75-80%
(b) 50-55%
(c) 20-25%
(d) 30-35%

Air washer system is used in following application
(a) automotive air conditioning
(b) printing plant air conditioning
(c) textile industry air conditioning
(d) library air conditioning

The air conditioning equipment in a museum should be operated for
(a) 12 Hrs.
(b) 18 Hrs
(c) 24 Hrs
(d) 06 Hrs

The growth of bookworm starts at temperature above
(a) 23 degree Celcius
(b) 15 degree Celcius
(c) 30 degree Celcius
(d) 40 degree Celcius

What is the deciding factor to choose spinning or twisting?
(a) Length of Yarn
(b) Thickness of yarn
(c) Weight of yarn
(d) None of the above

Following factors are kept in mind while deciding atmospheric conditions in textile industry
(a) Workers
(b) Material from which products are made
(c) Machine
(d) All of the above