1774. Fermenter used in the production of pen-cillin by deep fermentation proces is a __________ lined steel vessel
Rubber
Monel
Glass
Nickel
✅ The correct answer is option C.
1777. Mild steel is
A low carbon steel (0.05 to 0.3% carbon)
Highly resistant to corrosion (as much as stainless steel)
A high carbon steel (0.5 to 1.5% carbon)
Very poor in strength & ductility
✅ The correct answer is option A.
1780. Hydrochloric acid is stored in a__vessel.
Lead lined steel
Rubber lined steel
Stainless steel
Cast iron
✅ The correct answer is option B.
1783. Glass is corroded by
Fluorine (dry or wet)
Sulphuric acid
Phosphoric acid
None of these
✅ The correct answer is option A.
1786. 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.
1789. A material no longer behaves elastically beyond
Plastic limit
Limiting load
Elastic limit
Breaking load
✅ The correct answer is option C.
1792. Maximum carbon content in any variety of steel can be upto 1.3%. Steel containing 0.4% Carbon is not used for making
Nuts
Bolts
Chiesels
Studs
✅ The correct answer is option C.
1757. White metal is an alloy of
Lead, tin and cadmium
Copper, tin and zinc
Copper and lead
None of these
✅ The correct answer is option D.
1759. Which one has the maximum tensile strength out of the following?
Nodular cast iron
Pig iron
White cast iron
Grey cast iron
✅ The correct answer is option A.