Lead lined steel
Rubber lined steel
Stainless steel
Cast iron
✅ The correct answer is option B.
Materials and Construction MCQs
Maximum permissible sulphur content in steel is __________ percent.
0.015
0.055
0.505
0.805
✅ The correct answer is option B.
Polymerisation reactor used for the production of styrene butadiene rubber (SBR) is made of
Cast iron
Stainless steel or glass lined vessel
Karbate
Wrought iron
✅ The correct answer is option B.
Glass is corroded by
Fluorine (dry or wet)
Sulphuric acid
Phosphoric acid
None of these
✅ The correct answer is option A.
Cast iron compared to steel is better in
Ductility
Fluidity & castability
Strength
Malleability
✅ The correct answer is option B.
Centrifugal pump made of pyrex or glass can’t be used to pump
Milk and fruit juices
Alkaline solutions
Dilute H₂SO₄ at room temperature
Brine
✅ The correct answer is option B.
Evaporator used for concentrating tomato juice is made of
Nickel
Brass
Stainless steel-glass lined
Cast iron-rubber lined
✅ The correct answer is option C.
Presence of nitrogen in steel
Makes it brittle
Increases its strength
Increases its hardness
Is desirable
✅ The correct answer is option A.
Copper has very low
Malleability
Ductility
Tensile strength
Thermal & electrical conductivity
✅ The correct answer is option C.
A material no longer behaves elastically beyond
Plastic limit
Limiting load
Elastic limit
Breaking load
✅ The correct answer is option C.