1000+ Maintenance Engineering Question Bank with Answers Pdf - 2

Question: 6

Ultrasonic machining method is bed suited for

(A) non ferrous alloys

(B) stainless steel

(C) brittle materials

(D) plastics

Question: 7

Which of the following tool materials has highest cutting speed?

(A) carbide

(B) cast alloy

(C) carbon steel

(D) tool steel

Question: 8

In arc welding, eyes need to be protected against

(A) infra red and ultraviolet rays

(B) ultraviolet rays

(C) infra red rays

(D) sparks

Question: 9

Submerged arc welding is

(A) a process in which arc is maintained under a blanket of flux

(B) accomplished by maintaining a hot molten metal pool between plates

(C) a process which uses a mixture of iron oxide and granular aluminium

(D) all of the above

Question: 10

In arc welding operations the current value is decided by

(A) speed of travel

(B) voltage across the arc

(C) size of the electrode

(D) length of welded portion