A. Case hardening
B. Spheroidising
C. Normalising
D. Annealing
Related Mcqs:
- Nitriding of steel is done (in electric furnace) at _____________ °C?
A. 510
B. 1720
C. 2210
D. 910 - The purpose of nitriding the steel is to___________________?
A. Harden its surface
B. Soften its surface
C. Improve its reliability
D. None of these - Mild steel is a/an _____________ steel?
A. Low carbon
B. Medium carbon
C. High carbon
D. High alloy - Steel balls for ball bearings are generally made of ______________ steel?
A. Cast
B. Stainless
C. Free carbon
D. Carbon chrome - Mild steel is a/an ______________ steel?
A. Low carbon
B. Medium carbon
C. High carbon
D. High alloy - Maximum carbon content in any variety of steel can be upto 1.3%. Steel containing 0.4% Carbon is not used for making___________________?
A. Nuts
B. Bolts
C. Chisels
D. Studs - Straight silicon steel (containing Si from 0.5 to 5%) because of their low hysteresis loss and high magnetic permeability are used for electrical appliances. Which of the following electrical appliances made of silicon steel contains maximum percentage of silicon (about 4%) ?
A. Armature of small motors/generators
B. Generators and small motors
C. Induction motors
D. High frequency transformers - Addition of ______________ to the steel helps in increasing the residual magnetism in steel used for making magnets?
A. Chromium
B. Nickel
C. Tungsten
D. Cobalt - 18/8 steel is a/an __________ stainless steel ?
A. Austenitic
B. Ferritic
C. Martensitic
D. None of these - Steel pipes are normally manufactured by ______________ process?
A. Extrusion
B. Cold working
C. Forging
D. Electroforming
