| Post Name | WELDER |
|---|---|
| Department | State Water Transport |
| Question Paper Code | 126/2015 |
| Date of Test | 3 July 2015 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
While soldering what action is applied on solder?
Answer
A. Capillary action
2
Which one of these a pressure welding method?
Answer
C. Resistance welding
3
| Which of the following is not an insulator? |
Answer
A. Gold f
4
Which type of fire extinguisher is used in a welding shop? |
Answer
B. CO: extinguisher
5
The term used to indicate amount of current flow in a circuit is called :
Answer
D. Ampere |
6
The depression formed at the end of the weld is named as: |
Answer
B. Crater |
7
The semicircular deposits on the weld head are called :
Answer
C. Reinforcement
8
The angle formed between the line of the weld root and horizontal reference plane is called :
Answer
A. Weld slop ‘
9
Transferred are process and non transferred arc process are the classification of |
| ——___———- welding process. |
Answer
C. Plasma
10
In ______ position the pipe in 45° inclined and fixed and welding has been done in various positions.
Answer
D. 6G
11
212°C Fahrenheit is —-_————— ° centigrade.
Answer
Question Cancelled
12
Name the simplest test which uses sound to know that there is a crack in a weld :
Answer
A. Stethoscopic
13
Austenitic Stainless steel contains ————-_——— % chromium.
Answer
D. 16 to 22 :
14
Which Instrument is used to mark straight line mark on base plate parallel to.a plate edge?
Answer
B. Odd leg caliper
15
Arc blow is found with welding of :
Answer
A. Bare electrode
16
Lack of penetration is due to:
Answer
B. Low current
17
Which one of the easiest welding position :
Answer
D. Down hand
18
Two methods of flux coating on electrodes are :
Answer
C. _ Dipping and extrusion
19
The purity of Acetylene is checked the filter paper soaked in 10% silver nitrate solution
against the stream of acetylene. The filter paper changes in to:
Answer
D. Brown colour
20
Which one of the following is a non destructive test? :
Answer
D. Magnetic particle test
21
The unit of measurement of heat is :
Answer
B. Calorie
22
Which metal is more root opening, wider grove angle and more number of tack welds are
essential in arc welding?
Answer
A. Copper
23
Light hammering of the weld metal immediately after weld deposition. It is a method to
prevent distortion : ’
Answer
C. Peening
24
The third compartment contains in the purifier is :
Answer
D. Filter wool
A 5 126/2015
[P.T.O.]
25
Name the metal which does not allow X-rays to pass through it :
Answer
C. Lead
26
Which physical property of metals helps retaining the molten metal deposited on the joint in
over head welding?
Answer
B. Surface tension
27
Friction welding is suitable to weld :
Answer
D. Circular Job :
28
The welding blow pipe nozzle size for welding 3 mm sheet :
Answer
A. 7
29
In are welding eyes need to be protected against :
Answer
C. Ultra violet rays
30
Which of the following welding process uses non consumable electrode? ~
Answer
B. TIG welding
31
The main criterion for selection of electrode diameter in arc welding :
Answer
A. Thickness of materials
32
The cutting angle of a straight Snips is :
Answer
C. 87°
33
Name the instrument /tool used for transfer and setting off distances :
Answer
D. Wing compass
126/2015 6 A
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34
The correct electrode angle is used in Arc welding with the weld line is :
Answer
A. 70-80°C
35
What is the identification of tip colour for 2% thorium added tungsten electrode?
Answer
C. Red
36
What is the name of space left blank in the gas cutting?
Answer
C. Kerf
37
What type of heat treatment is used to get the original grain structure?
Answer
D. Normalizing : |
38
Seam welding is
Answer
B. Continuous welding process
39
Anon distinctive test requires a photographic film to be placed on one side of the joint to be
tested. What is the test?
Answer
C. Radiographic test
40
Welding Transformers are equipped with condensers. So as to:
Answer
D. Power factor
41
In gas cut plate the cut shows grooves and has deep draglines. This is due to :
Answer
A. _ Tip too close to the cut surface
42
Electrode holders are made out of :
Answer
C. Copper and their alloys
43
An alloy used in Brazing process is :
Answer
D. Spelter
44
The tip angle of centre punch is :
Answer
C. 90°
45
One type of inert gas welding is :
Answer
B. TIG welding
46
The melting Temperature of Alumina
Answer
Question Cancelled
47
Which position is tough to weld for beginners?
Answer
D. Overhead
48
The deviation of arc is called arc blow. It is caused by : :
Answer
B. Magnetic disturbance
49
The two plates are lying in same plane and joint together. These types of Joints are called :
Answer
D. Butt joint
50
The depth of fusion from the surface of the weld metal is :
Answer
C. Penetration
51
The flux coating of electrode contains cellulosic material coating. These electrodes are :
Answer
C. Deep penetration electrode
52
The left handed threaded valves is used in which gas cylinder?
Answer
A. CeHe
53
Granular flux and bare wire electrode is used in which type of welding?
.
Answer
B. SAW
54
Which one of the following is cause backfire in Oxy Acetylene blow pipe? |
Answer
A. Nozzle is over heated
55
AWS code of electrodes starts with the letter ‘E’ followed by four digit number. What is the
fourth digit number?
Answer
B. Type of flux coating
56
Gray cast iron is a type of material which can weld. It contains ——_—————_ % of carbon.
Answer
A. 3to4%
57
In submerged arc welding ——-—_—— type of flux is used.
Answer
C. Granular
58
Fahrenheit scale is a type of meter scale. It has —-—-———— equal division. ,
Answer
B. 180 |
59
The diameter of electrode and the arc length are equal. That type of arc length is called?
Answer
B. Medium arc length
60
Oxygen cylinders can store gas to a capacity of 7M3 with the pressure ranging between :
Answer
A. 120-150 Kg/cm?
61
The hottest temperature oxy acetylene flame is :
Answer
C. Oxidizing flame
62
The nozzle size of blow pipe for gas welding 4 mm thick plates :
Answer
A. 10
63
In high pressure oxy acetylene plant the maximum pressure of acetylene gas is :
Answer
B. 15 Kg/cm?
64
For complete combustion one volume of acetylene requires ———————- volume of oxygen.
|
Answer
D. 25
65
Commutators are made out of :
Answer
C. Copper segments
66
In straight polarity the heat distribution in electrode side is:
Answer
A. 1/3
67
1/4 of 3/5 of 6/5 a Number is 54. What is the number?
Answer
C. 300
68
The value of x and y for the equation X + 3Y = 15 and 5X − 2Y = 7 are:
Answer
D. 3, 4
69
If the diagonal of a square is 6√3. Then the area of this square will be :
Answer
D. 54
70
This metal transfer method is not used in MIG/MAG welding process :
Answer
B. Repelled transfer
71
For all structural work ferrous metals are used. What is the advaritage of ferrous metals over
non ferrous metals?
Answer
A. Can be easily welded
72
Which is the correct method to remove the chips from the file? |
Answer
B. _ Brush the chip away :
73
Intermittent welding method is used to : |
Answer
A. Minimize the amount of weld metal
74
-What is the correct procedure for reconditioning a bell mouthed tip of an oxy acetylene
welding nozzle?
Answer
A. Filing the tip end :
75
Argon gas cylinder is painted —----——— colour.
Answer
D. Blue
76
S.J. unit of force is : :
Answer
C. Newton
77
Mechanical efficiency of simple machine is?
Answer
C. Mechanical advantage/velocity ratio
78
The property of which metal can be drawn into wires without breaking is known as : |
Answer
D. Ductility
79
The size of the title block for all size of drawing sheet is —————mm to ‘
—____ mm.
Answer
B. 185 to 65
80
In first angle projection method the object comes between the —————-. and the
Answer
D. observer and plane
81
In third angle projection method the plans comes between the ————————- and the ‘
Answer
B. Observer and object
82
Centre lines locus lines and pitch circle are drawn as:
Answer
C. Long and thin chain lines
83
The form of a welded joint is specified by means of a symbol. Its location is indicated by an
————_——- and a ———_—__—_..
Answer
D. Arrow and reference line |
84
To prevent leakage through the Riveted Joint. The plates are firmly forced together by
—_—_————and —______.
Answer
A. Caulking and fullering
85
Itis a temporary fastening :
Answer
B. Nut and bolt
86
———————— is not an inert gas used in MAG welding.
Answer
C. COs
87
Brass isa alloy of :
Answer
A. Copper and zinc
88
The operation consists of depositing a layer of hard metal on a softer base metal in order to
provide surface having hardness and resistance to abrasion :
Answer
B. Hard facing
89
The melting point of tungsten is :
Answer
D. 3410°C
90
Which defect can be found by visual examination of the weld joint?
Answer
A. Misalignment of parts
91
Which type of test in hazardous to the testing operator?
Answer
B. X-ray test
92
In an examination 93% of the student passed and 259 failed. The total number of students
must be :
Answer
C. 3700
93
Volume of a sphere of radius ‘R’ is :
Answer
A. 4/32R°
94
What is the size of gas nozzle used for 6 mm diameter tungsten in TIG welding process?
Answer
A. 10
95
What does the letter ‘k’ indicate in the electrode coating EB5426HikX?
Answer
A. Iron powder electrode with 130 to 149% recovery
96
Ifa worker has suffered from electric shock, he should be : :
|
Answer
C. Made to walk
97
Which of the following resistance welding machine is used to join pipe sections end to end?
Answer
B. Butt
98
In MIG/MAG welding filler wire is used, when the filler wire is copper coated?
Answer
D. _ To prevent rust
99
In which solution the filter paper is soaked to test the purity of generated acetylene gas?
Answer
B. Silvernitrate
100
—_-_— is the distance between the end of the contact tube and the tip of the electrode
in GMAW process.
Answer
A. Stick out
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