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WorksheetsD74 MASTER THE DAY
Total questions: 120
Worksheet time: 2hrs 0mins
Name
Class
Date
1.
Which welding joint is formed when two plates are kept parallel and welded at edges?
a)
Tee joint
b)
Butt joint
c)
Lap joint
d)
Edge joint
2.
Which type of butt weld has a U-shaped groove?
a)
Square groove weld
b)
J-groove weld
c)
U-groove weld
d)
V-groove weld
3.
What is the weakest portion of a weld section called?
a)
Throat
b)
Toe
c)
Root
d)
Face
4.
In fillet welds, the perpendicular distance from root to hypotenuse is known as:
a)
Throat thickness
b)
Leg length
c)
Hypotenuse length
d)
Leg size
5.
Which type of weld is typically used in repair work by filling drilled holes?
a)
Plug weld
b)
Butt weld
c)
Fillet weld
d)
Slot weld
6.
Which joint is created when two plates are joined at a corner angle?
a)
Lap joint
b)
Corner joint
c)
Edge joint
d)
Tee joint
7.
In which welding position is the weld performed from underneath the joint?
a)
Flat
b)
Vertical
c)
Horizontal
d)
Overhead
8.
Which type of fillet weld has a flat face appearance?
a)
Flat fillet weld
b)
Concave fillet weld
c)
Convex fillet weld
d)
Mitre fillet weld
9.
What is the full form of TIG welding?
a)
Tungsten Internal Gas
b)
Tungsten Inert Generator
c)
Tensile Inert Gas
d)
Tungsten Inert Gas
10.
Which welded joint is formed when one plate rests upon another without overlapping completely?
a)
Corner joint
b)
Lap joint
c)
Tee joint
d)
Butt joint
11.
Which welding method gives temperatures up to 3300°C at the joint?
a)
Oxy-acetylene welding
b)
Arc welding
c)
Gas cutting
d)
Gas welding
12.
What is the advantage of welded joints regarding sectional area?
a)
Less clearance
b)
More splice plates
c)
Reduced gross area
d)
Effective gross area
13.
Which weld is used where lapping of reinforcing bars in RCC is to be avoided?
a)
Concrete connection
b)
Riveted connection
c)
Bolted connection
d)
Welded connection
14.
The permissible stress in axial tension for a single V-butt weld is approximately:
a)
100 N/mm²
b)
200 N/mm²
c)
250 N/mm²
d)
150 N/mm²
15.
Which welding defect is caused by improper fusion of base metal?
a)
Undercut
b)
Slag inclusion
c)
Lack of fusion
d)
Porosity
16.
Which type of fillet weld has its surface sloping at 45°?
a)
Mitre fillet weld
b)
Flat fillet weld
c)
Convex fillet weld
d)
Concave fillet weld
17.
Which connection is lighter – riveted or welded?
a)
Heavier connection
b)
Riveted connection
c)
Welded connection
d)
Same weight
18.
Which non-destructive test is used to check internal quality of welds?
a)
X-ray test
b)
Hammer test
c)
Surface grinding
d)
Visual inspection
19.
Which welding joint is most economical for structural steel fabrication?
a)
Fillet joint
b)
Butt joint
c)
Plug weld
d)
Slot weld
20.
Which factor mainly governs the strength of a weld?
a)
Length of weld
b)
Weld rod diameter
c)
Throat area
d)
Leg size
21.
Which weld type is specified by the size of its leg length?
a)
Slot weld
b)
Plug weld
c)
Butt weld
d)
Fillet weld
22.
The angle between plates in fillet welds should not be less than:
a)
90°
b)
60°
c)
45°
d)
30°
23.
Which type of welded joint is formed when two plates overlap each other fully?
a)
Lap joint
b)
Tee joint
c)
Corner joint
d)
Edge joint
24.
In a double groove butt joint, effective throat thickness is taken as:
a)
t
b)
Thickness of thicker plate
c)
2t
d)
t/2
25.
Which weld symbol is represented by a triangle on engineering drawings?
a)
Fillet weld
b)
Butt weld
c)
Plug weld
d)
Slot weld
26.
Which welding process produces flame with temperature around 6000°F?
a)
Arc welding
b)
TIG welding
c)
MIG welding
d)
Oxy-acetylene welding
27.
Which defect in welding appears as small cavities or voids in weld metal?
a)
Slag inclusion
b)
Undercut
c)
Crack
d)
Porosity
28.
Which joint is used when plates meet at right angle and weld is applied along the corner?
a)
Edge joint
b)
Lap joint
c)
Butt joint
d)
Corner joint
29.
Which type of weld is most often used for joining reinforcement bars in RCC?
a)
Riveted splice
b)
Bolted splice
c)
Welded lap splice
d)
Concrete overlap
30.
Which welded joint is formed when two parts are joined at a common edge?
a)
Lap joint
b)
Corner joint
c)
Tee joint
d)
Edge joint
31.
What is the effective throat thickness in a single groove butt joint?
a)
Thickness of thicker plate
b)
t
c)
5/8 t
d)
0.707 S
32.
In fillet welds, the size of weld is denoted by:
a)
Leg length
b)
Throat thickness
c)
Area of triangle
d)
Hypotenuse length
33.
Which of the following is NOT an advantage of welded joints over riveted joints?
a)
Better finish
b)
Less clearance required
c)
More rigidity
d)
Economical construction
34.
What is the main reason skilled labor is required in welding?
a)
Due to easy appearance check
b)
Due to high temperature control
c)
Because welding is cheap
d)
Because of X-ray inspection
35.
Which weld provides the maximum rigidity in steel structures?
a)
Fillet weld
b)
Riveted joint
c)
Slot weld
d)
Butt weld
36.
Which is a major disadvantage of welding during construction?
a)
Excess noise
b)
Requires drilling holes
c)
No supervision needed
d)
Possibility of warping
37.
Which type of butt weld has a V-shaped groove preparation?
a)
U-butt weld
b)
Square butt weld
c)
J-butt weld
d)
V-butt weld
38.
The effective load carrying capacity of a weld depends on:
a)
Electrode diameter
b)
Length of weld only
c)
Throat area
d)
Parent metal strength only
39.
Which welded joint is formed when two plates form a 'T' shape?
a)
Edge joint
b)
Lap joint
c)
Corner joint
d)
Tee joint
40.
Which test is used to examine surface cracks in welds using magnetic particles?
a)
Impact test
b)
Magnetic particle test
c)
Dye penetrant test
d)
Ultrasonic test
41.
Which welding joint is formed when two plates are placed at right angle and welded along edges forming 'L' shape?
a)
Lap joint
b)
Tee joint
c)
Edge joint
d)
Corner joint
42.
What is the throat area of a weld calculated as?
a)
Hypotenuse × weld size
b)
Size of weld × leg length
c)
Root thickness × weld length
d)
Throat thickness × length of weld
43.
Which of the following is an example of a groove weld?
a)
Fillet weld
b)
Plug weld
c)
Butt weld
d)
Slot weld
44.
Which weld is performed in a position where the molten metal tends to flow downward due to gravity?
a)
Flat welding
b)
Vertical welding
c)
Horizontal welding
d)
Overhead welding
45.
What is the advantage of welding in terms of aesthetics?
a)
Less economical
b)
Better finish and appearance
c)
Heavier structure
d)
More rigid connection
46.
Which type of weld is typically used when connecting flanges to steel columns?
a)
Fillet weld
b)
Slot weld
c)
Plug weld
d)
Edge weld
47.
What type of weld is made by overlapping two plates and welding at the edges?
a)
Corner joint
b)
Edge joint
c)
Lap joint
d)
Butt joint
48.
Which test involves sending high-frequency sound waves through the weld to detect flaws?
a)
Ultrasonic test
b)
X-ray test
c)
Dye penetrant test
d)
Magnetic particle test
49.
What is the symbol used to denote a square butt weld in drawings?
a)
A filled rectangle
b)
A circle
c)
A straight line
d)
A triangle
50.
What is the maximum permissible stress in axial compression for a single V-butt weld as per design notes?
a)
150 N/mm²
b)
200 N/mm²
c)
250 N/mm²
d)
100 N/mm²
51.
Which welding defect results in incomplete penetration of weld metal?
a)
Lack of penetration
b)
Undercut
c)
Slag inclusion
d)
Porosity
52.
Which type of butt weld is most economical for thin plates?
a)
J-butt weld
b)
U-butt weld
c)
V-butt weld
d)
Square butt weld
53.
The effective throat thickness for lap joint is taken as:
a)
s/2 or 0.7s
b)
Thickness of thinner plate
c)
Throat thickness × 2
d)
t/2
54.
Which weld is formed by depositing filler material along a slot boundary?
a)
Slot weld
b)
Butt weld
c)
Fillet weld
d)
Plug weld
55.
In a fillet weld, if size = 10 mm, throat thickness is:
a)
20 mm
b)
10 mm
c)
14.14 mm
d)
7.07 mm
56.
Which weld type is least rigid compared to others?
a)
Lap joint
b)
Butt joint
c)
Plug weld
d)
Edge joint
57.
What is the main cause of slag inclusion in welds?
a)
Excess heating
b)
Fast cooling
c)
Improper electrode angle
d)
Improper slag removal
58.
Which type of joint is most commonly used for connecting structural members at 90° in steel frames?
a)
Edge joint
b)
Corner joint
c)
Tee joint
d)
Lap joint
59.
What is the main advantage of using arc welding in construction?
a)
Less clearance
b)
Better finish
c)
Requires drilling
d)
High speed of operation
60.
Which non-destructive test uses colored dye to reveal surface cracks in welds?
a)
Ultrasonic test
b)
Magnetic test
c)
Impact test
d)
Dye penetrant test
61.
Which weld is triangular in cross-section and used to join surfaces at an angle?
a)
Butt weld
b)
Slot weld
c)
Plug weld
d)
Fillet weld
62.
What is the typical symbol used for butt weld in drawings?
a)
Triangle
b)
Square
c)
Straight line
d)
Circle
63.
Which joint is produced when plates are placed one above another and welded at edges?
a)
Lap joint
b)
Edge joint
c)
Tee joint
d)
Corner joint
64.
What type of weld is deposited inside a circular hole to join two plates?
a)
Plug weld
b)
Slot weld
c)
Fillet weld
d)
Butt weld
65.
Which welding process is also called gas welding?
a)
Arc welding
b)
TIG welding
c)
Oxy-acetylene welding
d)
MIG welding
66.
What is the main cause of undercut defect in welding?
a)
Slow cooling
b)
Low arc length
c)
Improper electrode angle
d)
Excessive current
67.
Which type of weld joint is used when two members meet at 90° to form a T?
a)
Corner joint
b)
Tee joint
c)
Edge joint
d)
Lap joint
68.
Which of the following provides the strongest welded connection?
a)
Fillet weld
b)
Slot weld
c)
Plug weld
d)
Butt weld
69.
What is the weakest portion of a fillet weld?
a)
Throat
b)
Root
c)
Toe
d)
Leg length
70.
The permissible shear stress in welds is generally taken as:
a)
150 N/mm²
b)
200 N/mm²
c)
300 N/mm²
d)
110 N/mm²
71.
Which welding method requires both oxygen and acetylene supply?
a)
Gas welding
b)
TIG welding
c)
MIG welding
d)
Arc welding
72.
What is the advantage of welding over riveting in terms of noise?
a)
Less noise
b)
Same noise
c)
No difference
d)
More noise
73.
Which weld is specified by the size of its leg or side length?
a)
Edge joint
b)
Fillet weld
c)
Slot weld
d)
Butt weld
74.
The effective throat thickness in a double groove butt weld is taken as:
a)
2t
b)
t/2
c)
t
d)
Thickness of thicker plate
75.
Which weld is made when filler is deposited inside an elongated opening?
a)
Butt weld
b)
Fillet weld
c)
Slot weld
d)
Plug weld
76.
Which is a disadvantage of welding related to inspection?
a)
Requires X-ray examination
b)
Needs surface grinding
c)
Needs visual inspection
d)
Needs hammer test
77.
Which joint is best suited for fabrication of frames and trusses?
a)
Corner joint
b)
Edge joint
c)
Lap joint
d)
Tee joint
78.
What is the throat thickness if fillet weld size is 12 mm?
a)
6 mm
b)
10.6 mm
c)
8.5 mm
d)
12 mm
79.
Which welding position is easiest and commonly used for practice?
a)
Horizontal
b)
Vertical
c)
Overhead
d)
Flat position
80.
Which defect is due to entrapped gas bubbles in solidifying weld metal?
a)
Slag inclusion
b)
Porosity
c)
Undercut
d)
Cracks
81.
Which joint is formed when two plates meet at 90° and weld is applied at the outer corner?
a)
Tee joint
b)
Corner joint
c)
Lap joint
d)
Edge joint
82.
Which weld type is represented by a filled circle in weld symbols?
a)
Slot weld
b)
Plug weld
c)
Fillet weld
d)
Butt weld
83.
Which welding position is most difficult due to molten metal flowing downward?
a)
Flat
b)
Horizontal
c)
Overhead
d)
Vertical
84.
Which weld is deposited in an elongated slot cut in one plate?
a)
Fillet weld
b)
Slot weld
c)
Plug weld
d)
Butt weld
85.
What is the advantage of welding over bolting in terms of rigidity?
a)
Economical
b)
More rigid
c)
Less rigid
d)
More clearance
86.
Which type of weld joint is least preferred for dynamic loads due to stress concentration?
a)
Corner joint
b)
Lap joint
c)
Edge joint
d)
Tee joint
87.
What is the throat thickness for a 16 mm fillet weld? (Use t = 0.707 × S)
a)
8 mm
b)
10 mm
c)
11.3 mm
d)
12 mm
88.
If throat thickness = 8 mm, weld length = 100 mm, permissible shear stress = 110 N/mm², what is the strength of weld?
a)
88 kN
b)
880 N
c)
88 N
d)
8.8 kN
89.
What is the effective throat thickness in a single groove butt joint?
a)
t/2
b)
5/8 t
c)
t
d)
2t
90.
Which weld joint is best suited for joining plates in the same plane end-to-end?
a)
Edge joint
b)
Corner joint
c)
Butt joint
d)
Lap joint
91.
Which weld defect is caused by trapped solidified flux?
a)
Cracks
b)
Porosity
c)
Slag inclusion
d)
Lack of fusion
92.
What is the typical range of angle between plates for a fillet weld?
a)
60°–120°
b)
30°–60°
c)
90°–150°
d)
45°–90°
93.
Which type of butt weld uses a preparation shaped like the letter 'J'?
a)
V-butt weld
b)
Square butt weld
c)
J-butt weld
d)
U-butt weld
94.
Which welding test detects internal defects using X-rays?
a)
Magnetic particle test
b)
Dye penetrant test
c)
Radiographic test
d)
Ultrasonic test
95.
Which welding defect occurs due to improper cleaning between weld passes?
a)
Slag inclusion
b)
Porosity
c)
Incomplete fusion
d)
Undercut
96.
Which weld is generally used for connecting steel reinforcement in RCC structures?
a)
Welded splice
b)
Bolted splice
c)
Riveted splice
d)
Concrete lap
97.
Which type of fillet weld has a bulging outward curved surface?
a)
Convex fillet weld
b)
Flat fillet weld
c)
Mitre fillet weld
d)
Concave fillet weld
98.
If a fillet weld has size = 10 mm and length = 120 mm, find effective weld area. (t = 0.707×S)
a)
707.0 mm²
b)
1200.0 mm²
c)
600.0 mm²
d)
849.0 mm²
99.
What is the permissible stress in axial tension for single V-butt weld as per design?
a)
200 N/mm²
b)
300 N/mm²
c)
250 N/mm²
d)
150 N/mm²
100.
Which welding process uses tungsten electrode and inert gas shielding?
a)
Gas welding
b)
MIG welding
c)
Arc welding
d)
TIG welding
101.
Which weld is formed when plates overlap and weld is applied along the edges?
a)
Tee joint
b)
Lap joint
c)
Edge joint
d)
Corner joint
102.
Which weld defect occurs due to insufficient fusion between weld metal and base metal?
a)
Slag inclusion
b)
Lack of fusion
c)
Cracks
d)
Porosity
103.
Which type of joint is formed when plates are welded at their edges in the same plane?
a)
Lap joint
b)
Butt joint
c)
Corner joint
d)
Edge joint
104.
What is the effective throat thickness of a double groove butt weld?
a)
t
b)
2t
c)
Thickness of thicker plate
d)
t/2
105.
Which welding process is also known as shielded metal arc welding (SMAW)?
a)
TIG welding
b)
MIG welding
c)
Gas welding
d)
Arc welding
106.
What is the symbol used for a slot weld?
a)
Triangle
b)
Straight line
c)
Elongated rectangle
d)
Circle
107.
Which type of fillet weld has a hollow inward curved surface?
a)
Mitre fillet weld
b)
Convex fillet weld
c)
Concave fillet weld
d)
Flat fillet weld
108.
Which welding defect is caused by rapid solidification trapping gases?
a)
Cracks
b)
Porosity
c)
Slag inclusion
d)
Undercut
109.
What is the advantage of welded joints compared to riveted joints in terms of sectional area?
a)
More rigid
b)
Effective gross area
c)
Heavier
d)
Less gross area
110.
Which type of welded joint is used to form a frame corner at 90°?
a)
Edge joint
b)
Tee joint
c)
Corner joint
d)
Lap joint
111.
If size of fillet weld = 14 mm, find throat thickness. (t = 0.707×S)
a)
12 mm
b)
10.5 mm
c)
9.9 mm
d)
14 mm
112.
A weld has throat thickness = 10 mm, length = 150 mm, permissible stress = 110 N/mm². Find weld strength.
a)
16.5 kN
b)
1.1 kN
c)
165 kN
d)
1.65 kN
113.
Which type of weld is most common in connecting angle sections in steel structures?
a)
Butt weld
b)
Plug weld
c)
Fillet weld
d)
Slot weld
114.
Which type of butt weld is used for thick plates requiring double preparation?
a)
J-butt weld
b)
Single V-butt weld
c)
U-butt weld
d)
Double V-butt weld
115.
Which non-destructive test uses magnetic flux leakage to detect surface defects?
a)
Ultrasonic test
b)
Radiographic test
c)
Magnetic particle test
d)
Dye penetrant test
116.
Which welding position is most preferred for beginners?
a)
Flat position
b)
Overhead position
c)
Horizontal position
d)
Vertical position
117.
Which weld defect is a groove melted into base metal adjacent to weld toe but not filled?
a)
Slag inclusion
b)
Undercut
c)
Porosity
d)
Lack of penetration
118.
Which welded joint is most economical for thin sheets?
a)
Lap joint
b)
Edge joint
c)
Plug weld
d)
Square butt weld
119.
If weld length = 200 mm, throat thickness = 6 mm, permissible shear stress = 110 N/mm², find strength.
a)
330 kN
b)
132 kN
c)
660 kN
d)
13.2 kN
120.
Which welding process uses consumable electrode and CO₂ shielding gas?
a)
Arc welding
b)
TIG welding
c)
MIG welding
d)
Gas welding
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