A. Tungsten, vanadium and chromium
B. Tungsten, chromium and vanadium
C. Vanadium, chromium and tungsten
D. Chromium, tungsten and vanadium
Related Mcqs:
- 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 carbon steel contains more than _____________ percent carbon?
A. 0.5
B. 2.2
C. 2.5
D. 2.8 - High speed steel tools retain their hardness upto a temperature of _____________ °C?
A. 500
B. 750
C. 900
D. 1100 - High speed steel should have high___________________?
A. Toughness
B. Wear resistance
C. Hardenability
D. Both B. & C. - ______________ can replace tungsten in high speed steel ?
A. Chromium
B. Vanadium
C. Cobalt
D. Molybdenum - Austenitic manganese steel used for making jaws of crushing machines contains about ______________ percent manganese?
A. 1.5-2
B. 3.5-4.5
C. 7-9
D. 12-14 - Dead mild steel, which contains 0.10 to 0.15 percent carbon is used for making________________?
A. Shafts
B. Flanges
C. Gears
D. Shear blades - Mild steel is a/an _____________ steel?
A. Low carbon
B. Medium carbon
C. High carbon
D. High alloy - 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