KPSC Water Resource Department Junior Engineer Mechanical Question Paper 2017 with Answer Key

KPSC Water Resource Department Junior Engineer Mechanical Question Paper 2017 with Answer Key

21) Which is true for electric arc furnace for melting of metals ? 1. Graphite electrodes are used. 2. To produce a tonne of steel, around 400 kWh of electric energy is used. 3. Charge is directly exposed to an electric arc and current in the terminals passes

Answer is:

A, B, C and D

22) In oblique metal cutting, the inclination angle is

Answer is:

the angle between the cutting edge of the tool and the normal to the direction of velocity of work.

23) 18-4-1 HSS steel contains

Answer is:

18% tungsten, 4% chromium, 1% vanadium

24) Lathe operations can be performed by A. holding workpiece between centres B. holding workpiece by a chuck C. holding workpiece by a face plate D. holding workpiece by an angle plate Which of the above statements is / are correct ?

Answer is:

All are correct

25) Different operations that can be performed on drilling machines are A. Drilling and Reaming B. Boring and Counter sinking C. Lapping and Grinding Which of the above statements is/are correct ?

Answer is:

A and B are correct

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