A. Vickers hardness test
B. Shore scleroscope test
C. Brinell hardness test
D. Rockwell hardness test
A. Made of glass fibre and thermoplastic resins
B. Anisotropic
C. Made of thermosetting resin and glass fibre
D. Both ‘B’ & ‘C’
A. Perspex (PMMA)
B. Teflon (PTFE)
C. Bakelite (phenol formaldehyde)
D. Polystyrene
A. Antifriction properties
B. Compressive strength
C. Bearing resistance
D. Wear resistance
A. Cathodic protection
B. Anodic protection
C. Usage of largest possible anodic area
D. Any one of these
A. Crystallise faster
B. Resist greater tensile stress at room temperature
C. Have higher melting temperature
D. Are better conductor of electricity at higher temperature
A. 6 : 1
B. 12 : 1
C. 18 : 1
D. 24 : 1
A. Tungsten
B. Zirconium
C. Molybdenum
D. Tantalum