TNPSC Motor Vehicle Inspector 2018 Paper – Mechanical and Automobile

Tamil Nadu Public Service Commission Motor Vehicle Inspector 2018 Paper – Mechanical and Automobile Engineering (Diploma Level)

The process used for relieving the internal stresses in the metal and for improving mechanicability of steel is
(a) Normalising
(b) Annealing
(c) Spheroidising
(d) Case hardening

A steel with 0.8% carbon is known as
(a) eutectoid steel
(b) hyper eutectoid steel
(c) hypo eutectoid steel
(d) None of the above

Mild steel belongs to the following category
(a) low carbon steel
(b) medium carbon steel
(c) high carbon steel
(d) alloy steel

A cold chisel is made of
(a) Mild steel
(b) Cast iron
(c) H.S.S
(d) High carbon steel

The property of material which allows it to be drawn into a smaller section is called
(a) Elasticity
(b) Drawability
(c) Plasticity
(d) Ductility

For welding heavy parts such as rails, broken machines frames, rebuilding of large gears, the welding process used generally is
(a) Resistance welding
(b) Gas welding
(c) Thermit welding
(d) Spot welding

Which of the following operation is first performed?
(a) Tapping
(b) Boring
(c) Drilling
(d) Spot facing

The cutting edge of a standard twist drill are called
(a) Flutes
(b) Wedges
(c) Lips
(d) Flanks

Compression ratio in diesel engine is of the order of
(a) 5 – 7
(b) 7 – 10
(c) 10 -12
(d) 14 – 20