Chemical Engineering MCQs

6108 MCQs  (Page 474 of 611)

Graphite is corroded by_________________?
A. Sulphuric acid (10%)
B. Sea water
C. Hydrochloric acid
D. None of these
Titanium metal_________________?
A. Exists in three allotropic forms
B. Cannot be welded
C. Is used in oceanographic and space exploration applications
D. None of these
Plasticisers are added to polymers to improve their____________________?
A. Tensile strength
B. Softness & flexibility
C. Acid resistance
D. Alkali resistance
Out of the following, copper vessels are the most suitable for the storage of__________________?
A. Bromine
B. Dry chlorine & dry fluorine
C. Nitric acid (95% and fuming)
D. Phosphoric acid (95%) & sulphuric acid (95% and fuming)
Shock resisting steels should possess high___________________?
A. Hardness
B. Toughness
C. Tensile strength
D. Wear resistance
Glass lined vessels are not used for handling__________________?
A. Dilute h2so4
B. Dilute hno3
C. Dilute hci
D. Hydrofluoric acid
A material no longer behaves elastically beyond_________________?
A. Plastic limit
B. Limiting load
C. Elastic limit
D. Breaking load