KPSC Mock Test: Refrigeration Mechanic UIP - Health Services
Official Kerala Public Service Commission ONLINE Exam Question Paper & Answer Key. • Name of Post: Refrigeration Mechanic UIP - Health Services • Department / Institution: Health Services • Question Paper Code: 18/2023/OL • Category Number: 315/2022 • Date of Test: 04-04-2023 • Answer Key: Provisional Answer Key Question Paper PDF: https://www.keralapsc.gov.in/sites/default/files/2023-04/fky-18-23.pdf Answer Key PDF: https://www.keralapsc.gov.in/sites/default/files/2023-04/provisional_answer_key__refrigeration_mechanic.pdf
100 Questions
Progress: 0 / 100 Answered
1
Which one of the following should not be followed inside a workshop, as per the general safety rules ?
2
In first aid CPR stands for
3
The weight of an Engineer's hammer is stamped at its
4
The selection of a hacksaw blade depends upon the ________ of the metal to be cut.
5
_________ is measured by using a vernier height gauge along with a dial indicator.
6
The cutting angle of straight snips is
7
The joining allowance for knocked-up-joint is
8
How much pressure you will set on the regulator for oxygen gas for fusion run with filler road on 3.15 mm thick mild steel sheet ?
9
Which of the following is an example of plastic welding ?
10
Which error if the energy meter disc rotating continuously on no load ?
11
What happens to the voltmeter if it is connected as an ammeter ?
12
Which conductors are used for distribution lines ?
13
What is the advantage of stranded conductor over solid conductor ?
14
Which principle the earth resistance tester works ?
15
Which type of single phase motor is having very high starting torque than any other type of single phase motor ?
16
Which speed is called as synchronous speed in three phase induction motor ?
17
What is the purpose of using rotor resistance starter to start three phase slip ring induction motor ?
18
Which is an active component ?
19
Which is the main application of SCR ?
20
Which material is used to make cutting wheel in a tube cutter ?
21
Which instrument is used to check the clearance between cylinder wall and piston of a reciprocating compressor ?
22
Which instrument is used to find the relative humidity of air ?
23
How much degree angle is cut out on the face of each hole in a flare block ?
24
One calorie, is the amount of heat required to raise the temperature of 1 gram of water through
25
The pressure of a gas, which just sufficient to liquefy the gas below its critical temperature is
26
Sub cooling is the process of reducing the temperature of liquid
27
Super heating is
28
Which law of thermodynamics states that at constant volume, the absolute pressure of a given mass of a perfect gas varies directly to its absolute temperature ?
29
Three TR is equivalent to ______ of cooling effect.
30
Which refrigeration system called as expandable refrigerant refrigeration system ?
31
What is the name of the process in which dry ice is converted into vapour state ?
32
Which compressor dome handles high pressure and high temperature vapour ?
33
The volumetric efficiency of the compressor is defined as the ratio of
34
Which type of compressor is provided with slide valve mechanism for capacity control ?
35
Which part of a centrifugal compressor converts velocity pressure into static pressure ?
36
Which compressor is known as turbo compressor in air conditioning systems ?
37
Leaking tubes of a water cooled condenser are isolated using
38
Which type of condenser uses air and water as cooling medium ?
39
The process of removing accumulated minerals and unwanted materials from the tubes of a water cooled condenser is called
40
What is the name of the operation used to reduce the salt concentration in cooling tower water ?
41
What will be the approach of a cooling tower if the inlet water temperature is 36°c, outlet water temperature is 30°c and ambient wet bulb temperature is 25°c ?
42
The range of a cooling tower is the difference between
43
Equaliser tube is a part of
44
Which expansion device controls the refrigerant flow according to evaporator pressure ?
45
Which of the following expansion device cannot change the quantity of refrigerant according to the load ?
46
Operating temperature of frosting type evaporator is
47
What is the other name of bare tube coil evaporator ?
48
Which type of evaporator is used in direct cool refrigerator ?
49
Which component provide necessary pumping action to refrigerant in direct cool refrigerator ?
50
Which of the following statement is correct about the desirable property of refrigerant ?
51
Which of the following statement is correct about the heat insulating material ?
52
Which part meter and regulate the pressure of refrigerant admitted to the evaporator ?
53
Which part protect the compressor from the damage due to the high current consumption ?
54
Which substance is known as heat carrying medium in refrigeration system ?
55
Which one is example of primary refrigerant ?
56
What is the chemical name of R134a refrigerant ?
57
What is the boiling point of isobutene refrigerant (R600a) ?
58
What is the normal ratio of R600a and R290 refrigerant in HC blend ?
59
Which lubricant is used with R134a Refrigerant ?
60
Which component prevent the liquid refrigerant entering the compressor ?
61
Which type of Vacuum pump can generate a vacuum of 20 to 50 microns ?
62
Which type of relay is used with Capacitor start capacitor run sealed compressor motor ?
63
In pump down process in split AC, where did the refrigerant stored ?
64
What is the GWP of R 22 Refrigerant ?
65
Which refrigerant is the HFC group Zeotropic Mixture ?
66
What is the purpose of soldering the capillary tube to the suction line in frost free refrigerator ?
67
What is the use of desiccants in filter drier ?
68
Which type of defrosting method is used in frost free refrigerator ?
69
What is the normal drinking water temperature maintained in the water cooler ?
70
In which refrigerating machine perishable foods are stored for long period ?
71
The operation of expanding the inside diameter of a pipe to take in the outside diameter of another pipe end of same size is known as
72
Which gas is used for leak testing and flushing the refrigeration systems ?
73
What is the purpose of providing fins on the tubes of a coil ?
74
Which instrument make the use of bourdon tube ?
75
The component of Ice candy plant which circulates the brine solution throughout the brine tank is
76
Refrigerant used in Ice plants is
77
According to the order of priority, which one of the following components should be started first in an Ice plant ?
78
Which psychrometer uses battery operated small fan ?
79
Dehumidification of air can be done only if the temperature of cooling coil is
80
GI sheets used for making ducts, are made resistant to rust by coating with
81
The efficiency of HEPA filter is
82
In automobile A/C systems the pistons are operated by
83
Defrosting cycle is carried out in
84
Seasonal Fruits and Vegetables are made available round the year by
85
The psychrometric process in which air is heated without any change in its specific humidity is known as
86
FCU stands for
87
Glass wool insulation is avoided in duct because of its
88
H.E.P.A. Filter stands for
89
Magnetic clutch is used in
90
Insulating materials used for cold storage must have
91
The dry bulb temperature lines in psychrometric chart are
92
Desert Cooler or Evaporative Cooler is an application of which of the following psychrometric process ?
93
In a Package A/C, the sensing bulb of thermostat which cycles the compressor is located at the
94
The instrument used to measure total pressure inside the duct is
95
Air filters are used in
96
The excessive dehydration of stored food products inside a cold storage happens if the air inside the cold storage is having
97
In central air conditioning plants, liquid receiver is located at
98
Compressor cut out off by HP cut out in Package AC can be caused due to
99
Velocity pressure of air inside a duct is the
100
The lubricant oil used with R134a refrigerant is
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