| Post Name | Welder - State Water Transport |
|---|---|
| Question Paper Code | 108/2025/OL |
| Category Code | 735/2024 |
| Date of Test | 29 September 2025 |
| Exam Type | Online Examination |
| Total Questions | 100 |
1
What is the reason for clogging of the ļ¬le?
Answer
D. Filing with excess pressure
2
The cutting angle of straight snip is __________
Answer
D. 87 degree
3
The pitch distance of a coarse pitch hacksaw blade is ________
Answer
D. 1.8 mm
4
What should be the distance between the tip of the cutting nozzle from the top surface of the plate to be cut?
Answer
D. 5 mm
5
In gas cutting, size of tip is selected for cutting of 8 mm thick mild steel plate is _______
Answer
B. 1.2 mm
6
Which is the method to control back ļ¬re while welding?
Answer
A. Close the oxygen control valve ļ¬rst
7
The temperature producing neutral ļ¬ame is _________
Answer
A. 3200 degree
8
A back ļ¬re is caused when the gas pressure setting is _________
Answer
A. Low
9
Name the type of ļ¬ame used for welding of cast iron is ________
Answer
A. Neutral ļ¬ame
10
The greatest amount of heat produced in an oxy-acetylene ļ¬ame at _________
Answer
A. Just ahead of inner cone
11
Which one of the following gas ļ¬ame combination has the lowest temperature?
Answer
C. Oxy-coal gas
12
The porous substance packed inside the acetylene cylinder is _________
Answer
C. Long ļ¬bre asbestos
13
Density of calcium carbide is __________
Answer
A. 2.22 to 2.26 g/cc
14
In acetylene gas puriļ¬er ļ¬rst compartment contains _________
Answer
B. Pumice stone
15
How many litters of gas can produce one kg of liquid oxygen?
Answer
A. 750 litters
16
The most widely used oxy-acetylene gas welding technique is __________
Answer
A. Leftward welding technique
17
The permissible value of reinforcement in groove and ļ¬llet welds is ________
Answer
A. T/10
18
The fuse plug ļ¬tted in the dissolved acetylene cylinder base will melt at a temperature of __________
Answer
A. 100Ā°C
19
The function of injector in low pressure blow pipe is ________
Answer
A. High pressure oxygen draws low pressure acetylene and increase its velocity
20
The function of ļ¬ller rod in gas welding is _________
Answer
A. To obtain proper size of weld and to add additional elements
21
Submerged arc welding ļ¬ux is non-conductive when it is _________
Answer
B. Cool
22
What should be the gap between the parts to be joined in submerged arc welding?
Answer
Question Cancelled
23
When thermit welding of copper conductors the process employs a semi-permanent crucible mould which is made of?
Answer
D. Graphite
24
The thermit mixture contains _________
Answer
A. 5 parts of aluminium and 8 parts of iron oxide
25
In which position electro slag welding generally done?
Answer
Question Cancelled
26
In electro slag welding, electrode guided tube made up of __________
Answer
C. Beryllium copper alloy
27
Friction welding is a _________
Answer
A. Solid state welding
28
Metal that cannot be welded by the friction welding is _________
Answer
D. Cast iron
29
One of the most widely used gas laser is __________
Answer
D. COā
30
Which type of welding the work piece is melted and joined by narrow beam of intense monochromatic light?
Answer
A. Laser beam
31
The speed of electrons in electron beam welding ranges from ________
Answer
A. 48000 kms/sec to 192000 kms/sec
32
In EBW, electron beam can be directed either downwards or deļ¬ected in any other direction within the vacuum chamber using __________
Answer
D. Deļ¬ection coil
33
Rotating wheels are used as electrodes in this resistance welding is _________
Answer
B. Seam
34
What is the angle of oļ¬set tip electrode used in spot welding?
Answer
A. 30Ā°
35
Which method of resistance welding is used to attach the fasteners with the structural member?
Answer
B. Projection
36
Nick break test is done to ļ¬nd -________
Answer
A. Slag inclusion
37
Special non-destructive test is _________
Answer
C. magnetic particle test
38
A metal resists penetration, what property does it indicate?
Answer
D. Hardness
39
What is the code number given for pressure vessel manufacturing, exclusively for steel and steel alloy?
Answer
A. P1 to P11
40
Which type of tests are conducted by WPS, to test welder's performance?
Answer
A. Destructive test
41
Which type of current is commonly used in plasma arc cutting process?
Answer
A. DCEN
42
Clean compressed air used as the cutting gas; electrode used in plasma arc cutting is ________
Answer
A. Hafnium
43
Which one of the following methods is not related to surfacing method?
Answer
B. Grinding method
44
One of the typical advantages of hard facing for a worn-out metal is _______
Answer
C. The increase mechanical operating eļ¬ciency
45
What is the pre-heated temperature of copper and copper alloys?
Answer
Question Cancelled
46
Welding is not done directly from the main supply because _________?
Answer
B. It is impractical to draw heavy current
47
What is deļ¬ned as vertical position of groove welding?
Answer
C. 3G
48
In direct current electrode positive welding ___________ of the total heat produced at the electrode?
Answer
B. 2/3
49
Which among the joints are covered under ļ¬llet group?
Answer
D. T joint, Corner joint
50
What is the purpose of presetting the plate while welding a T ļ¬llet joint?
Answer
A. Control distortion
51
What is the maximum length of a stub as per standard?
Answer
D. 40 mm - 50 mm
52
In MAG welding the is ļ¬lled in the cylinder in the form of _________?
Answer
C. Liquid
53
In welding, the groove angle for single V butt joint is ___________ degree?
Answer
D. 40Ā° to 45Ā°
54
The deposition eļ¬ciency of MAG welding is deļ¬ned as the rate of _________
Answer
B. Weight of weld
55
What is the eļ¬ect in GMAW for welding with short stick out distance?
Answer
D. More spatter deposit in nozzle
56
In GMAW, small lengths of electrode wire which stick through the root side of groove weld is known as ________?
Answer
A. Whiskers
57
The material used to make gas nozzle in TIG welding process is _________?
Answer
B. Ceramic
58
In the following gases which is a monatomic gas?
Answer
C. Helium
59
In TIG welding the high frequency unit is connected between ________?
Answer
D. Power source and torch
60
Higher duty cycle TIG welding torch is ________?
Answer
A. Water cooled torch
61
In TIG welding aluminium and magnesium metals are welded by _________?
Answer
B. AC
62
One of the method of determination of polarity is Water Test, here the terminal with __________?
Answer
A. More and quick arising bubbles indicate negative
63
The imaginary line passing through the weld centre lengthwise is known as ________?
Answer
B. Axis
64
Which among the following is done to decrease the rate of cooling of welded job?
Answer
D. Preheat the job before welding
65
The defect Cold cracking in weld are due to ________?
Answer
A. Presents of hydrogen in hardanable steel
66
What is the purpose of keeping a magnetic bridge on the top of the groove joint?
Answer
C. Control Arc blow
67
At the end of a weld beed, the electrode is moved backwards, gradualy increases the electrode angle from 70Ā° to 90Ā°. This welding technique is followed to avoid ___________?
Answer
C. Creater defect
68
Arc blow is a disturbance during welding, _________ system is free from 'Arc Blow'?
Answer
B. AC welding
69
In welding, ________ type arc welding machine used?
Answer
D. DC constant voltage
70
In backhand welding, the tip of the electrode points away from the direction of travel is also called ____________ welding technique?
Answer
A. Pulling
71
The distance between the end of the contract tube and the tip of the electrode is called _________?
Answer
C. Stick out
72
In GMAW, Teļ¬on liner is used for welding of _________?
Answer
D. Aluminum
73
In welding, when the welding current is low ________ type metal transfer occurs?
Answer
A. Globular
74
Which type of shielding gas will produce smaller heat aļ¬ected zone in TIG welding?
Answer
B. Helium
75
In TIG welding, setting DCEN for Stainless steel welding, ________ is the angle of electrode tip?
Answer
D. 60Ā°
76
Which type of wire brush is used to clean Aluminium sheets?
Answer
C. Stainless steel wire brush
77
In TIG welding, ________ is used to show the volume of the inert gas allowed to go to the welding torch?
Answer
A. Flow meter
78
In TIG welding, high frequency unit increases the frequency to _________?
Answer
A. 2 to 4 million periods / second
79
The type of electrode used for welding aluminium by TIG welding process is ________?
Answer
B. Pure tungsten electrode
80
In GTAW, nozzles are numbered to Indicate their size in 'mm'. What is the size of the nozzle in 'mm' if nozzle in numbered as 6?
Answer
C. 10 mm
81
Choosing a GTAW torch _________ is consider?
Answer
C. Current carrying capacity
82
In arc welding the length of arc is directly related to the _________?
Answer
B. Voltage
83
What type of electrode will you select for crak free weld?
Answer
A. Low hydrogen electrode
84
What is the name of the type of joint for the symbol?
Answer
B. Concave ļ¬llet
85
What is the eļ¬ect of insuļ¬cient root gap in welding?
Answer
D. Base metal not fused till the bottom of point
86
During welding, basemetal melted and a groove formed along the toe of the weld is called _________ defect?
Answer
A. Undercut
87
Ohm's law states that ___________?
Answer
C. V = IR
88
What does the third digit of AWS codiļ¬cation in E6013 represent?
Answer
B. Type of welding position
89
In GMAW, which one is delivering the shielding gas correctly to the shielding nozzle?
Answer
A. Diļ¬user
90
In GMAW a linear relationship exists between the rate at which the wire is fed in to the arc and the current required to melt it oļ¬ to maintain a constant are length. This is known as the ___________ characteristic?
Answer
B. Burn oļ¬
91
In GMAW wire reel drive motor draws the ļ¬ller electrode wire from wire reel through ________ and feed it to the welding gun?
Answer
D. Wire feed pressure roller
92
During GMAW, on using as shielding gas, __________ gas is genareted?
Answer
D. Carbon monoxide
93
In welding, spray transfer requires _______?
Answer
A. High current density
94
The gas ļ¬ow rate in the GTAW process depends upon _________?
Answer
C. Shielding gas and diameter of nozzle
95
In TIG welding torch ________ is holding tungsten electrode?
Answer
D. Collet
96
When grinding a point on a thoriated tungsten electrode in which direction would be grinding marks run?
Answer
C. Lengthwise
97
Pure tungsten electrodes are identiļ¬ed with _________ marking?
Answer
A. Green colour
98
What is the process of replacing the air in a pipe with argon gas that will not react with the root of the weld?
Answer
B. Purging
99
In Thoriated tungsten electrode __________ percentage of thorium is present?
Answer
C. 1 to 2%
100
Nickel and Titanium welding _________ process is eļ¬ective.
Answer
D. TIG welding
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