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.Management Sciences
Category: Chemical Engineering Basics
Non-ferrous alloys used for making cutting tools need not have high__________________?
A. Abrasion resistance
B. Toughness
C. Red hardness
D. Cutting speed
A spring material should have low__________________?
A. Elastic limit
B. Deflection value
C. Fatigue resistance
D. None of these
____________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength ?
A. Lancing
B. Shot peening
C. Slugging
D. Spinning
_______________ is the most important element, which controls the physical properties of steel ?
A. Manganese
B. Silicon
C. Carbon
D. Vanadium
‘Flare tower’ used in industry is meant for_____________________?
A. Venting off (after burning) the excess inflammable/toxic gases at high pressure
B. Absorbing the pollutant gases from the furnace exhaust
C. Cooling of furnace exhaust gases
D. None of these
A gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure at the gas temperature, which is termed as its_______________?
A. Aqueous tension
B. Saturated humidity
C. Vapor pressure
D. Absolute humidity
Corrosion of metals cannot be prevented by its__________________?
A. Tempering
B. Chromising
C. Aluminising
D. Alloying
A form of stress corrosion failure termed as ‘season cracking’ is generally observed in __________________?
A. Thermosetting polymers
B. High carbon steels
C. Brasses
D. Borosilicate glasses
Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of_____________________?
A. 90% tungsten carbide and 10% cobalt
B. 70% aluminium oxide & 30% silica
C. 30% nickel, 15% chromium & 55% tungsten
D. 65% tungsten & 35% zirconium
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