A. Silicides
B. Oxides
C. Carbides
D. Nitrides
Related Mcqs:
- Cermets are ______________ materials?
A. Refractory
B. Reinforced
C. Abrasive
D. Fully metallic - Cermets are used for making___________________?
A. Cutting tools
B. Abrasives
C. Both A. & B.
D. Neither A. nor B - Ceramic materials fabrication cannot be done by__________________?
A. Welding
B. Slip casting
C. Extrusion
D. Plastic pressing - Ceramic materials are____________________?
A. Organic in nature
B. Stronger in compression than in tension
C. Always amorphous in nature
D. Always bad heat conductors - Ceramic materials__________________?
A. Are exemplified by clay and mica
B. Are poor electrical conductors due to lack of free electrons
C. Never exhibit polymorphism
D. All A., B. and C. - Ceramic recuperators are generally made of_________________?
A. Silicon carbide
B. Calcium carbide
C. Fireclay bricks
D. High alumina bricks - Failure of a material is termed as fatigue failure, if it fails below the yield point. The resistance to fatigue failure of a material is measured by the__________________?
A. Ultimate tensile strength (U.T.S.)
B. Endurance limit
C. Elastic limit
D. None of these - Which of the following is the hardest material ?
A. Topaz
B. Quartz
C. Corundum
D. Fluorite - Which of the following is the softest material ?
A. Quartz
B. Calcite
C. Corundum
D. Fluorite - The malleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the maximum malleability ?
A. Lead
B. Copper
C. Aluminium
D. Wrought iron
