1000+ Maintenance Engineering Questions and Answers Pdf - 1

Question: 1

In coated electrode in arc welding

(A) rod melts first and then coating melts

(B) which melts first depends on polarity used

(C) coating melts first and then rod melts

(D) both rod and coating melt simultaneously

Question: 2

Welding process in which two pieces to be jointed are overlapped and placed between two electrodes is known as

(A) current used

(B) material to be welded

(C) type of welding process

(D) thickness of material

Question: 3

In arc welding operations the current value is decided by

(A) size of the electrode

(B) voltage across the arc

(C) speed of travel

(D) length of welded portion

Question: 4

Acetylene is stored in the gas cylinders

(A) under high pressure

(B) under low pressure

(C) in gaseous form

(D) in liquid form

Question: 5

Lifter is

(A) used to scoop sand deep in the mould

(B) used to make or repair corners in a mould

(C) a round sieve

(D) a long, flat metal plate fitted with an offset handle