A. Tungsten steel
B. Molybdenum steel
C. Nickel-chrome steel
D. Cobalt steel
Related Mcqs:
- Which of the following alloy steels has the energy saving properties making it suitable for use in electrical machines ?
A. Silicon steel
B. Chromium steel
C. Molybdenum steel
D. None of these - Gun metal is an alloy of_________________________?
A. Nickel, tin and copper
B. Copper, tin and zinc
C. Copper, phosphorus and nickel
D. Manganese, phosphorus and nickel - Aluminium alloy is one of the most suitable materials of construction for aircrafts mainly due to its___________________?
A. High strength to weight ratio
B. Low temperature strength properties
C. Its ability to be cast, rolled, forged & stamped
D. High strength and corrosion & oxidation-resistance at elevated temperature - Which of the following has no effect on the carbide forming tendency in steels ?
A. Molybdenum
B. Phosphorus
C. Chromium
D. Vanadium - Which of the following has a very high carbide forming tendency in steels ?
A. Silicon
B. Chromium
C. Nickel
D. Vanadium - Which of the following stainless steels is non-magnetic ?
A. Ferritic
B. Martenistic
C. Austenitic
D. None of these - Which of the following stainless steels is non-magnetic ?
A. Ferritic
B. Martenistic
C. Austenitic
D. None of these - Addition of 2% nickel in steel makes it suitable for making ___________________?
A. Electronic valves
B. Boiler plates, rivets etc.
C. Turbine blades
D. Connecting rod - High speed cutting tool steels contain about _______________ percent of tungsten?
A. 6-8
B. 18-20
C. 30-35
D. 50-55 - Molybdenum steels containing 0.15 to 0.40% molybdenum___________________?
A. Are prone to temper brittleness
B. Are used for automobile parts like gears, axle, shaft, bearings etc.
C. Have very poor fatigue resistance
D. Do not contain nickel or chromium or both
