A. Cork
B. Glass
C. Graphite
D. Rubber
Related Mcqs:
- Non-ferrous metals and hard steels do not exhibit a definite yield point, when pulled in the testing machine and hence for these cases, a better measure of their elastic properties is defined by the ______________ stress?
A. Ultimate
B. Yield point
C. Proof
D. None of these - 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 - Corrosion resisting properties of cast iron are significantly improved by the addition of 12 – 15% of___________________?
A. Tungsten
B. Vanadium
C. Silicon
D. All A., B. & C. - Which of the following exercises most powerful influence on the mechanical properties of steel ?
A. Manganese
B. Carbon
C. Phosphorous
D. Silicon - Nickel base alloys with ______________ are known as monel metal?
A. Zinc
B. Tin
C. Copper
D. Molybdenum - The electrical conductivity of a ______________ decreases with rise in temperature?
A. Metal/alloy
B. Semi-conductor
C. Dielectric
D. None of these - Cermets are ______________ materials?
A. Refractory
B. Reinforced
C. Abrasive
D. Fully metallic - 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 - ______________ is not a case hardening process?
A. Carburising
B. Nitriding
C. Cyaniding
D. Annealing - Fermenter used in the production of penicillin by deep fermentation process is a ______________ lined steel vessel ?
A. Rubber
B. Monel
C. Glass
D. Nickel
