| Post Name | TRADESMAN (REFRIGERATION AND AIR CONDITIONING) DEPARTMENT-TECHNICAL EDUCATION (EKM, MLPM, KNR) |
|---|---|
| Question Paper Code | 169/2016 |
| Date of Test | 15 December 2016 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
One tonne of refrigeration is equal to :
Answer
C. 210 K/min
2
Awater cooler is uses the refrigerant :
Answer
D. R134,
3
What is the angle of point of centre punch?
Answer
A. 90°
4
The switch should control the line :
Answer
B. Phase
5
| Acompressor coupled to a motor externally is called :
Answer
B. Open type compressor
6
The purpose of a filter drier is to remove :
Answer
C. Moisture
7
The storage capacity of a dissolved acetylene cylinder is :
Answer
A. 6.0 m*
8
The heart of refrigeration system is :
Answer
D. Compressor |
9
Velocity is measured in the units of : |
Answer
D. F.P.M
10
Colour code of ammonia refrigerant cylinder :
Answer
D. Silver
11
Identify the zeotropic refrigerant from the following :
Answer
B. R407C
12
Double cut file is made of :
Answer
C. High carbon steel
13
In airâ refrigeration system, the coefficient of performance is :
|
Answer
B. Low
|
14
A low side float valve maintains the level of refrigerant in :
Answer
A. Flooded evaporator
15
-â40°Fis:
Answer
A. -40°C
16
The ball bearings of electrical motor are lubricated by : |
Answer
A. Grease F
17
Stabiliser used for 1.0 TR A/C is:
|
Answer
A. 3KVA
18
Which one of the following gives DC supply?
Answer
D. Dynamo
19
For checking the air movement, there is an instrument called :
Answer
C. Anemometer
20
The chemical formula of R134, is : :
Answer
A. C.H,F,
21
The thermostat for the window type air-conditioner is set at :
Answer
A. 75°F
22
Auto defrost operated by :
,
Answer
A. Timer switch
23
Brine solution density is checked by :
|
Answer
D. Hydrometer ;
24
An ideal refrigerants is one whose boiling point is :
Answer
C. Low
25
The condenser in indirect system, condenses :
Answer
B. Refrigerant
26
High side float valve is fitted on the condensing unit just after the :
Answer
C. Condenser
27
According to Ohm's law I =:
R
Answer
D. R
28
When air is heated relative humidity :
Answer
A. Decreases
29
Which chemical is used for condenser descaling?
Answer
D. Hydrochloric acid
30
Which refrigerant charged in car A.C?
Answer
C. R134,
31
The pipes which are used for absorption refrigeration system :
Answer
B. Steel
32
Convert from CFC 12 to HFC134, appliance, the compressor displacement will be :
Answer
A. Slightly larger
33
Dry ice is:
Answer
D. Carbon dioxide
169/2016 6 A
34
Relay is protection device used in :
Answer
B. Compressor
35
Weak insulation can be checked by :
Answer
B. Meggar
36
In window type air-conditioners the following expansion device used :
Answer
C. Capillary tube :
37
Freon 12 ideal pressure is :
Answer
D. 6.0 Kg/Cm?
38
The storage capacity of a oxygen cylinder is : :
Answer
D. 7m*ÂŽ
39
What is the range of flame temperature of oxygen-hydrogen gases?
Answer
C. 2400 to 2700°C
40
Which type of flux is used for soldering G.I sheets?
Answer
D. HCl
41
The cooling capacity of 1.0 TR is:
Answer
B. 12000 BTU/Hr
42
The atmospheric pressure at sea level is taken as :
Answer
C. 1.083 Kg/Cm*
43
The freezing temperature of water is :
Answer
D. 0°C
44
The mechanical fault in refrigerator system is :
Answer
B. Condenser coil dirty
45
Boiling point of R600, is:
Answer
C. -11.8°C
46
The condenser coil type which used in deep freezer commonly :
Answer
D. Force draft
47
Internal energy of a substance is proportional to :
Answer
B. Temperature
48
The closing of churner and top cover done air tight by :
Answer
A. âO' ring
49
The thread angle of National fine thread is : "
Answer
D. 465°
169/2016 8 A
50
Select the âpitchâ of a medium hacksaw blade from the following :
Answer
C. 14mm and 1.0mm
51
Refrigerator compressor motor winding burnt out :
Answer
A. High voltage
52
Which of the following is not a desirable property of a good insulating material?
Answer
B. High heat conductivity
53
Compressor used in window A/c is :
Answer
C. Sealed compressor
54
How many operations are in service valve?
Answer
C. Three
55
The most possible leakage spots in the refrigerator is :
Answer
B. Brazing tube joints
56
One Kilowatt is equal to :
Answer
A. 1.34H.P
57
It is an instrument used to measure high temperature : :
Answer
B. Pyrometer
58
The operation of split A/c produces :
Answer
D. No noise
A 9 169/2016
[P.T.O.]
59
Ball bearing can be removed by using : |
Answer
C. Puller
60
âThe metal wire which give good earth contact is :
Answer
A. Copper
61
Name the temperature at which moisture condenses on a surface :
x
Answer
C. Dew point temperature
62
Name the correct tool which is used to cut wires :
Answer
A. Wire cutter
63
Select the minimum number of diodes used in fulwave rectifier :
Answer
D. Two
64
The unit of pressure in SI system is:
Answer
C. N/m²
65
The amount of heat required in calories to raise the temperature of one gram of substance
through 1°C is :
Answer
B. Specific heat
66
Specify the thickness of a sheet metal having 18 SWG (Standard Wire Gauge) : |
Answer
D. 1.22 |
169/2016 10 A |
67
The size of 1/2" copper tube is equal to :
Answer
Question Cancelled
68
350 litres refrigerator âââââ compressor is used.
Answer
B. Y5H.P
69
The temperature in degree centigrade for human comfort is :
Answer
D. 21
70
Ifthe vacuum level inside the refrigerator is 30 mm of Hg the moisture boiling temperature
will be :
Answer
A. 25°C
71
The size of the gasket is depends on :
Answer
B. Thickness
72
The material with highest ductility :
Answer
D. Gold
73
To cool 20 litres of water from 32°C to 12.5°C in one hour. Calculate the amount of heat
removed :
Answer
C. 390 Keal/Hr
74
In large capacity air â conditioning applications the following expansion device is used :
Answer
B. Thermostatic expansion valve
75
Relative humidity of air at the grill of an air-conditioner as compared to the room humidity
is:
Answer
B. More
76
The Global Warming Potential (GWP) of R134, is:
Answer
C. 1300
77
The solder wire used in electronic soldering melts at :
Answer
B. 200°C
78
Select the material used to check the tightness of door gasket of a refrigerator :
Answer
C. Paper sheet
79
Whena pressure switch cut-out, it will make the drive to : 3
Answer
A. Stop
80
When wet bulb and dry bulb temperature are equal the humidity is :
Answer
A. 100%
81
Who was known as Indiaâs unofficial ambassador in England?
Answer
A. Dadabhai Naoroji
82
Where is the central secretariat of ASEAN located?
,
Answer
D. Jakarta
83
Which day was fixed as Direct Action Day by the Muslim League?
Answer
B. August 16
84
Name the person who used the term âcold warâ for the first time :
Answer
C. Bernard Baruch âŹ
85
Urdu daily started by Lala Lajpat Rai : i
Answer
A. Vande Mataram
86
Name the person associated with kuka movement :
Answer
B. Bhagat Jawahar Mal
87
Who were Jotedars?
Answer
A. Rich Peasants
88
Which act of the British was termed as the âGagging Actâ?
Answer
C. Vernacular Press act
89
Which country is known as the cradle of renaissance movement?
Answer
B. Italy
90
Founder of samatva samajam : ;
;
Answer
D. Vaikunda Swamikal
91
The painting âRelief of Lucknowâ was painted by : :
Answer
A. . Thomas Jones Barker
92
The largest temple in the world âAnkorvatâ built by :
Answer
C. Suryavarman
93
Who is known as the father of Continental Drift Theory?
Answer
B. Alfred Wegener
94
The ruins of Hampi were discovered by : |
Answer
A. Colonel Cohn Mackenzie
95
Father of local self government in India :
Answer
B. Lord Ripon
96
Which famous writer coined the term âBanana Republicâ to denote politically unstable
countries?
Answer
C. Henry
97
Which team won Azlan Shah Hockey Tournament in 2013?
Answer
D. Australia
98
Who was a active member of secret society âLotus and Daggerâ to liberate India from the
British?
Answer
B. Aurobindo Gosh
99
The founder of St. Josephâs press at Mannanam : |
Answer
C. Mar Kuriakose Elias Chavara
100
The system of competitive examination for civil service was accepted in principle in the Year : |
Answer
D. 1853
169/2016 14 A
; : .
.
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