Materials and Construction MCQs

479 MCQs  — Chemical Engineering MCQs  (Page 36 of 48)

Brass is an alloy of____________________?
A. Nickel and tin
B. Copper and zinc
C. Tin and lead
D. Copper, nickel and zinc
SO3 is absorbed using H2SO4 in a____________________?
A. Cast iron packed tower
B. Stainless steel plate tower
C. Packed steel tower lined with acid proof bricks
D. None of these
Plastics are____________________?
A. Used in very high temperature applications
B. Non-biodegradable
C. Not suitable for drainage pipe manufacture
D. All a., b. & c.
Ceramic materials are____________________?
A. Organic in nature
B. Stronger in compression than in tension
C. Always amorphous in nature
D. Always bad heat conductors
Which one contains the least percentage of carbon ?
A. Wrought iron
B. High speed steel
C. Cast iron
D. Pig iron
Light weight metallic alloy used in aircraft industry is________________?
A. Aluminium
B. High silicon (14%) iron
C. Duralumin
D. Phosphor bronze
Acid proof stoneware_________________?
A. Has very low strength
B. Cannot be heated
C. Is broken by small temperature changes
D. All a., b. and c.
Babbitt metal (used for making bearings) comprises of__________________?
A. Mainly tin (85%) and lead
B. Saw dust and iron dust mixture
C. Zinc and aluminium
D. Copper and aluminium