Case hardening
Spheroidising
Normalising
Annealing
✅ The correct answer is option A.
Engineering
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1792. Maximum carbon content in any variety of steel can be upto 1.3%. Steel containing 0.4% Carbon is not used for making
Nuts
Bolts
Chiesels
Studs
✅ The correct answer is option C.
1793. Which of the following is not a copper based alloy with nickel?
German silver
Monel metal
Inconel
Constantan
✅ The correct answer is option C.
1794. Age hardening is concerned with
Copper
Brass
Duralumin
Silver
✅ The correct answer is option C.
1795. A hardness depth of about 3 mm can be achieved by induction hardness in __________ seconds.
5
100
250
500
✅ The correct answer is option A.
1796. Brine solution is stored/treated in __________ lined vessels/pipes.
Rubber
Lead
Glass
Nickel
✅ The correct answer is option D.
1797. High speed cutting tool steels contain about __________ percent of tungsten.
6-Aug
18-20
30-35
50-55
✅ The correct answer is option B.
1798. Which of the following alloy steels is the most suitable for making gun barrels and projectiles?
Tungsten steel
Molybdenum steel
Nickel-chrome steel
Cobalt steel
✅ The correct answer is option C.
1799. The process of heating the cold pressed metallic powder is called __________ in powder metallurgy.
Precipitation
Fusion
Sintering
Agglomeration
✅ The correct answer is option C.
1800. Hardening of steel is not possible unless it is heated __________ critical point.
Above the highest
Above the lowest
Between the first & second
Between the second & third
✅ The correct answer is option B.