WELDING MCQ-:01

 Q. 1 The point at which the two pieces to be joint known as _____ .

A. Root

B. Weld point

C. Joint

D. Base point

And-: A

Q.2  The portion of the bent joint i.e. melted by the heat of welding is called  ___.

A. Puddle 

B. Melting point

C. Weld point

D. None of the above 

Ans -: A

Q.3 Acetylene also known as _____.

A. C3H4

B. C3H8

C. C2H2

D. C3H3

Ans-: C

Q.4 What is the proportion of the oxygen and acetylene in the natural flame?

A. 1:2

B. Equal 

C. 2:5

D. 1:3

Ans-: B

Q.5 In carburating flame the proportion of oxygen is ____%.

A. 22

B. 35

C. 50

D. 25

Ans-: D

Q.6 In welding process ,the colour of oxygen cylinder is ____.

A.  Black

B. White

C. Green

D. Yellow

And-: A

Q.7 In which type of welding process, the welding torch should be held at an angle of 30 to 40 ° .

A. Forehand welding

B. Backhand welding 

C. Electric arc welding 

D. All of the above 

Ans -: A

Q. 8 Electrods are two types ___.

A. Non-comsumerabl 

B. Non- corrosive 

C. Comsumerabl 

D. A+C

Ans -: D

Q.9 Non-comsumerabl electrod are made up of ___.

A. Copper

B. Carbon

C. Graphide 

D. Tungsten 

E. All of the above 

Ans-: E

Q.10 Which type of electrod is used in the " metal inert gas welding " process?

A. Comsumerabl 

B. Non-comsumerabl 

C. Aluminium electrod 

D. None of the above 

Ans-: A