This set of Engineering Drawing Multiple Choice Questions & Answers (MCQs) focuses on “Welded Joints – 1”.
1. When welding of two metal parts are carried out by heating the parts at joint up to plastic condition and then joined together by applying external mechanical pressure it is named as Fusion welding.
a) True
b) False
View Answer
Explanation: When welding of two metal parts are carried out by heating the parts at joint up to plastic condition and then joined together by applying external mechanical pressure it is named as Pressure welding or forge welding.
2. In _________ welding heavy current (50,000A) is passed through the joint which gets melt and welding is under external pressure.
a) Arc welding
b) Gas welding
c) Forge welding
d) Spot welding
View Answer
Explanation: In this welding heavy current (50,000A) is passed through the joint which gets melt. The welding is completely under external pressure. Spot welding, seam welding and flash butt welding are examples of pressure resistance welding.
3. In which of the following welding only fusion welding takes place?
a) Seam welding
b) Flash butt welding
c) Spot welding
d) Arc welding
View Answer
Explanation: Fusion welding is a process of welding by local fusion with or without the use of a filler metal. The most commonly used fusion welding processes are gas welding and arc welding. The flame temperature varies from 2600 to 3200 degrees depends on fuel gases.
4. The symbol for weld type fillet is __________
a) 
b) 
c) 
d) 
View Answer
Explanation: A welded joint is shown on a drawing by means of a symbol which specifies the form of weld and a bent arrow and a reference line indicating the location of the weld. The symbols shown here are recommended by the Bureau of Indian Standards.
5. The symbol for seam welding is __________
a)
b)
c)
d)
View Answer
Explanation: A welded joint is shown on a drawing by means of a symbol which specifies the form of weld and a bent arrow and a reference line indicating the location of the weld. The symbols shown here are recommended by the Bureau of Indian Standards.
6. The symbol for weld type U butt is __________
a)
b)
c)
d)
View Answer
Explanation: A welded joint is shown on a drawing by means of a symbol which specifies the form of weld and a bent arrow and a reference line indicating the location of the weld. The symbols shown here are recommended by the Bureau of Indian Standards.
7. The symbol for weld type V-butt is _________
a)
b)
c)
d)
View Answer
Explanation: A welded joint is shown on a drawing by means of a symbol which specifies the form of weld and a bent arrow and a reference line indicating the location of the weld. The symbols shown here are recommended by the Bureau of Indian Standards.
8. The symbol for weld type double-V butt is ________
a) 
b) 
c) 
d) 
View Answer
Explanation: A welded joint is shown on a drawing by means of a symbol which specifies the form of weld and a bent arrow and a reference line indicating the location of the weld. The symbols shown here are recommended by the Bureau of Indian Standards.
9. The symbol for spot welding is ________
a)
b)
c)
d)
View Answer
Explanation: A welded joint is shown on a drawing by means of a symbol which specifies the form of weld and a bent arrow and a reference line indicating the location of the weld. The symbols shown here are recommended by the Bureau of Indian Standards.
10. The symbol for weld type double U- butt is __________
a)
b)
c)
d)
View Answer
Explanation: A welded joint is shown on a drawing by means of a symbol which specifies the form of weld and a bent arrow and a reference line indicating the location of the weld. The symbols shown here are recommended by the Bureau of Indian Standards.
11. The symbol for weld type Bevel butt is ____________
a)
b)
c)
d)
View Answer
Explanation: A welded joint is shown on a drawing by means of a symbol which specifies the form of weld and a bent arrow and a reference line indicating the location of the weld. The symbols shown here are recommended by the Bureau of Indian Standards.
12. The symbol for edge welding is _________
a)
b)
c)
d) 
View Answer
Explanation: A welded joint is shown on a drawing by means of a symbol which specifies the form of weld and a bent arrow and a reference line indicating the location of the weld. The symbols shown here are recommended by the Bureau of Indian Standards.
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