GATE 2024 - 2025 Mechanical Engineering Question Paper Pdf - 1

Question: 1

The important property of a material in all metal forming processes is

(A) brittleness

(B) ductility

(C) elasticity

(D) plasticity

Ans: D


Question: 2

Laser is produced by

(A) aluminium

(B) diamond

(C) graphite

(D) ruby

Ans: D


Question: 3

Shock effect in a nozzle is felt in

(A) throat

(B) convergent portion

(C) straight portion

(D) divergent portion

Ans: D

divergent portion

Question: 4

Steel and cast iron pipes are cast by

(A) centrifuging

(B) continuous casting

(C) die casting

(D) true centrifugal casting

Ans: D

true centrifugal casting

Question: 5

Which impurity in water requires critical attention on very high pressure boilers?

(A) ammonia

(B) silica

(C) dissolved salts

(D) suspended salts

Ans: B


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