A. Produced by adding 10-20% steel to the cupola charge
B. Stronger than cast iron
C. Both A. and B.
D. Neither A. nor B.
Related Mcqs:
- 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 - _______________ is a donor impurity for semi-conductors ?
A. Boron
B. Antimony
C. Gallium
D. None of these - Steel rods are used in reinforced concrete to increase its ______________ strength?
A. Shear
B. Tensile
C. Compressive
D. None of these - Residual magnetism in steel for magnets is increased by the addition of__________________?
A. Nickel
B. Cobalt
C. Tungsten
D. Chromium
