| Post Name | TRADESMAN - WELDING |
|---|---|
| Department | TECHNICAL EDUCATION - IDUKKI/PALAKKAD |
| Question Paper Code | 150/2016 |
| Date of Test | 11 November 2016 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
Which one of the process requires bare metal electrode and granular flux ?
Answer
C. Submerged are welding
2
Spot welding, seam welding, flash butt welding is different methods of a
Answer
A. Resistance welding
3
Which type of electrode is used in submerged arc welding ? |
Answer
D. Bare wire
4
In which position is SAW welding is done ?
Answer
A. Flat and Horizontal
5
Which one of the following is a resistance welding process ?
Answer
A. Spot welding
6
Shielded metal are welding is classified under the process of _ :
Answer
B. Electric arc welding
7
Punches used for marking purpose are made of â_-
Answer
D. High carbon steel
8
A ball peen hammer is specified by
Answer
A. Its weight
9
The tool used to draw lines on a chalk coated metal surface is called r
Answer
D. Seriber
10
[tis a resistance welding process in which roller type electrodes are used ;
Answer
B. Seam welding |
11
Which of the following metal plates can not be joined by projection welding ?
Answer
B. Copper plates
12
What is the purpose of copper coating on the mild steel filler wire ?
Answer
C. To avoid rusting
13
Which mechanical properties of metal give resistance to pulling force ?
Answer
D. Tensile strength
14
Answer
B. Proper root penetration
15
Which of the following metal has highest thermal conductivity ?
Answer
B. Copper
16
Over heating of blow pipe nozzle to be avoided because it will cause
Answer
A. Flash back
17
Oxygen gas will change into liquid condition at __ :
Answer
B. â182,9°C
18
Which of the following metal has the highest melting temperature ?
|
Answer
B. Tungsten
19
In which position is electro slag welding generally done ?
Answer
B. Vertical
20
One of the advantages of submerged are welding is
Answer
D. All of above
21
Which of the following are ferromagnetic materials ?
Answer
D. Copper, Aluminum, Silver
22
In the solvent removable penetrant process, excess penetrant is removed with ;
Answer
D. Clean, lint free towels slightly moistened with solvent
23
The limitation of a liquid penetrant test is ;
Answer
B. Porous materials cannot be tested
24
Gas welding tip orifice should only be cleaned with ;
Answer
B. Tip cleaner
25
The function of injector in Low Pressure blow pipe is :
Answer
A. High pressure oxygen draws acetylene and increases its velocity
26
The nozzles are generally made of copper because :
Answer
A. Rust will not take place
27
The blow pipe fitted with injector will prevent ;
Answer
B. Reverse flow of acetylene gas
28
For removing water vapors from the acetylene pas, the material used is :
Answer
C. Pumice stone
29
Glycerin is added to water in the hydraulic back pressure valve in order to
Answer
B. Prevent freezing
30
Why acetylene cylinders should always be kept upright/ vertical position ?
Answer
D. To avoid the flow of acetone liquid along with gas
31
To set a oxidizing flame :
Answer
B. Set a neutral flame and decrease acetylene
32
Which type of flame is used to weld brass ?
|
Answer
C. Onidizing flame
33
What is the maximum thickness of MS sheet that can be weld in leftward technique ?
Answer
D. 5mm
34
The angle of blow pipe to the line of weld in leftward welding technique is ;
Answer
C. 60r - 70°
35
Copper should not be used in acetvlene gas piping because ;
Answer
A. Copper react with acetvlene and form explosive compound |
36
The greatest amount of heat is produced in an oxyacetylene flame at _ -_
Answer
D. Just ahead of inner cone
37
Purpose of fitting a hose protector is to _-
Answer
B. Avoid return flow of gas to cylinder
38
The maximum pressure of acetylene gas that can be compressed ina cvlinder :
Answer
B. 15 ke/em?
39
The function of gas regulator is ;
|
Answer
D. To set working pressure
| A 7 150/2016
{P.T.O.| |
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40
The function of filler rod in gas welding is ,
Answer
A. Te obtain additional elements
41
The safety device used to protect the eyes while grinding is ;
Answer
C. Chipping goggles
42
Name the flux used for brazing of MS sheets : |
Answer
D. Borax
43
Acetylene gas is dissolved in liquid in cylinder,
Answer
B. Acetone
44
The colour code for identifying oxygen gas cvlinder is _ =
Answer
B. Black
45
Oil and grease can react violently, when contact with high pressure ___
Answer
C. Oxygen
46
When a hose protector is fitted, the gas can only flow
Answer
B. Cylinder to blow pipe
47
Soldering is a method of joining two metal pieces by means of a third metal having relatively
_ melting temperature. d
Answer
A. Low
48
The flow of molten solder in the gap between the work pieces is driven by force.
Answer
B. Capillary
49
Solders melt at a temperature __ a Oh
Answer
B. Below 350
50
Soldering flux has a melting, point ____. the melting point of solder.
Answer
A. Low
51
In brazing the filler materia) melt at a temperature the melting temperature of
the material to be joined.
Answer
A. Below
52
Soldering of MS sheets takes place at a temperature of
Answer
C. y) 250°C
53
One of the necessities of welding transformer is __ =
Answer
A. To reduce voltage and increase current
54
Which one of the following welding machine can supply AC or DC ?
Answer
D. Transformer rectifier
55
The value of open circuit voltage in manual metal arc welding is volt,
Answer
C. 60-150
56
Forge welding is classified as :
Answer
C. Non-fusion welding with pressure
57
If main electric supply is not available, we can do arc welding with 00.
Answer
C. Engine generator set
58
The amount of current setting for welding depends upon ____..
Answer
D. The diameter of electrode used
59
While selecting straight polarity = _-
Answer
B. Base metal connected to positive sice
60
The arc welding transformer isa transformer.
Answer
A. Step down
61
The easy position to weld is :
Answer
A. Flat
62
During over head welding it is more convenient to use
Answer
B. Helmet
63
Depth of fusion from the surface of the weld metal is known as
Answer
A. Fusion zone
64
Electrode connected to positive terminal :
|
Answer
C. Reverse polarity
65
More spatters are due to i.
Answer
C. Excess current
66
In DC supply the heat distribution is more at â.
Answer
A. Positive terminal
67
The effect of arc blow will be totally absent in
Answer
C. AC welding
68
The electrodes are manufactured in two standards lengths namely :
Answer
A. 350 mm and 450 mm
69
A lap joint has :
Answer
B. Overlapping parts
70
In the 5G position, pipe must be located in a axis,
Answer
B. Fixed horizontal axis
71
Which is not coming under ferrous metal ?
Answer
C. Copper
72
Which is not an alloy ?
Answer
D. Iron
73
Which of these devices is/are acceptable and safe for lighting a welding t: rch ?
Answer
C. Spark lighter
74
What is the duty cycle of a welding machine designed to operate continuously for 7 out of
every 10 minutes ?
Answer
B. 70 percent
75
Name the instrument/tool used for transferring and setting of distances ?
Answer
C. Wing compass
76
Ammonium Chloride is used as a flux for soldering ?
Answer
A. Steel
77
Name of the instrument used to check the perpendicularity of the branch pipe with the main
pipe of a pipe T joint ?
Answer
B. Try square
78
Which one of the following metals will not permit X-rays to pass-through ?
Answer
C. Lead
79
The distance between the root and toe of a fillet weld is called ;
Answer
B. Leg length
80
Thermit mixture used in thermit welding can be ignited with an initial temperature of
Answer
C. y) 1200°C
81
The Lakshadweep (Laccadive) is situated in ;
Answer
B. Arabian Sea
82
World Forest Day is celebrated on:
Answer
A. March 21
83
Name the most densely populated state in India according to the census 2011 :
Answer
D. Bihar
150/ 2016 12
84
Who drafted the people's plan ?
Answer
C. MLN. Rov
85
Who led the Revolt of 1857 at Jagdishpur ?
Answer
A. Kunwar Singh
86
The Simon Commission was appointed in ;
Answer
B. 1927
87
Who founded the Self Respect Movement ?
Answer
D. EV, Ramaswami Naicker
88
The Palaruvi waterfalls is in the district of :
Answer
B. Kollam
89
Name the headquarters of the KERAFED :
Answer
D. Thiruvananthapuram
90
The Sabarigiri hydroelectric project is in the river :
Answer
A. Pampa
91
Who published the magazine, âSivayogavilasany ?
Answer
C. Vaghbhatananda
92
The work âVichithra Vijayamâ written by Kumaranasan is a ;
Answer
B. Drama
93
Mannath Padmanabhan conducted the Savama Jatha in connection with : |
Answer
A. Vaikkom Satyagraha
94
The Prathyaksha Raksha Daivasabha was founded in :
Answer
D. 1909
95
Name the author of the book, âBalakalesamâ :
Answer
C. Pandit K.P. Karuppan
96
Who became the champion of the Copa America Centenario Football Tournament ?
Answer
B. Chile
97
Name the country which is connected with BREXIT :
Answer
A. Britam
98
Who is incharge of cinema in the new cabinet of Kerala ?
Answer
D. A.K. Balan
99
Name the place selected to be the new capital of Andhra Pradesh :
Answer
A. Amaravati
100
Who is the new President of the Board of Control for Cricket in India
Answer
B. CCI) ?
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