A. Metalloy
B. Cermets
C. Pellets
D. Non-crystalline ceramics
Related Mcqs:
- The crystal structure of most of the common metals is_____________________?
A. Orthorhombic
B. Cubic
C. Hexagonal
D. None of these - Most of the common metals have ______________ crystal structure?
A. Cubic
B. Hexagonal
C. Orthorhombic
D. None of these - Which one occupies the lowermost position in the electromotive series of metals ?
A. Aluminium
B. Noble metals (Ag, Pt, Au)
C. Zinc
D. Alkali metals (K, Na, Li) - The damage/deterioration of metals by the ______________ action of fluids is called ‘erosion’?
A. Abrasive
B. Corrosive
C. Both A. & B.
D. Neither A. nor B. - Tin coating on metals is not done by_____________________?
A. Spraying
B. Powder metallurgy
C. Hot dipping
D. Electro-deposition - Slow plastic deformation of metals under a constant stress is termed as _____________ failure?
A. Fatigue
B. Endurance
C. Creep
D. None of these - Atmospheric corrosion of metals result from their________________?
A. Slow oxidation
B. Fast oxidation
C. Fast hydration
D. Slow dehydration - Which of the following is universally employed as the low expansion metal in the bimetallic thermometer, which is an iron-nickel alloy containing 36% nickel and has very low co-efficient of expansion (1/20th of ordinary metals) ?
A. Invar
B. Constantan
C. Chromel
D. Alumel - Babbitt metals used for making bearings are _________________?
A. Tin or lead based alloys
B. Short of antifrictional properties
C. Having homogenous microstructure
D. Yellow metals - The metals occuring at the lower most position in the electromotive series____________________?
A. Do not resist corrosion
B. Resist corrosion very strongly
C. Are very brittle
D. Are heat insulators
