Materials and Construction MCQs

479 MCQs  — Chemical Engineering MCQs  (Page 9 of 48)

As the impurities are oxidised, the melting point of iron___________________?
A. Decreases
B. Remains unchanged
C. Increases
D. May increase or decrease; unpredictable
Combination of metals and ceramics are called___________________?
A. Metalloy
B. Cermets
C. Pellets
D. Non-crystalline ceramics
Galvanising is generally done on___________________?
A. Non-ferrous metals
B. Low carbon steel
C. Stainless steel
D. Cast iron
High speed steel should have high___________________?
A. Toughness
B. Wear resistance
C. Hardenability
D. Both b. & c.
Aqueous nitric acid is stored in ______________ vessel?
A. Plain carbon steel
B. Stainless steel
C. Cast iron
D. Thermosetting plastic material
18/8 stainless steel means, that it contains__________________?
A. 18% chromium and 8% nickel
B. 18% chromium and 8% molybdenum
C. 18% nickel and 8% chromium
D. 18% molybdenum and 8% chromium