A. 500
B. 750
C. 900
D. 1100
Related Mcqs:
- 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 - A hardness depth of about 3 mm can be achieved by induction hardness in ______________ seconds?
A. 5
B. 100
C. 250
D. 500 - Addition of _____________ in steel can help in increasing the depth of hardness?
A. Nickel
B. Chromium
C. Vanadium
D. Tungsten - Addition of ______________ in steel is helpful in increasing the depth of hardness?
A. Chromium
B. Sulphur
C. Vanadium
D. Tungsten - 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 - High speed steel should have high___________________?
A. Toughness
B. Wear resistance
C. Hardenability
D. Both B. & C. - 18-4-1 high speed steel contains 18%, 4% and 1% respectively of____________________?
A. Tungsten, vanadium and chromium
B. Tungsten, chromium and vanadium
C. Vanadium, chromium and tungsten
D. Chromium, tungsten and vanadium - ______________ can replace tungsten in high speed steel ?
A. Chromium
B. Vanadium
C. Cobalt
D. Molybdenum - A material is able to retain the deformation permanently by virtue of its___________________?
A. Elasticity
B. Plasticity
C. Ductility
D. Malleability - Mild steel is a/an _____________ steel?
A. Low carbon
B. Medium carbon
C. High carbon
D. High alloy
