Chemical Engineering Mcqs

Addition of ______________ in steel is helpful in increasing the depth of hardness?

• (A)  Chromium
• (B)  Sulphur
• (C)  Vanadium
• (D)  Tungsten

Answer

Submitted By :Ali Uppal

Addition of nickel to copper improves its_________________?

• (A)  Machinability
• (B)  Ductility
• (C)  Strength
• (D)  Hardness

Answer

Submitted By :Ali Uppal

Clock pendulums are usually made of _______________ steel?

• (A)  High speed
• (B)  Stainless
• (C)  Heat resisting
• (D)  None of these

Answer

Submitted By :Ali Uppal

A chemical change takes place when iron_____________?

• (A)  Rusts
• (B)  Melts
• (C)  Is heated
• (D)  None of these

Answer

Submitted By :Ali Uppal

Polymerisation reactor used for the production of styrene butadiene rubber (SBR) is made of__________________?

• (A)  Cast iron
• (B)  Stainless steel or glass lined vessel
• (C)  Karbate
• (D)  Wrought iron

Answer

Submitted By :Ali Uppal

_______________ does not contain tin as an alloying material?

• (A)  Brass
• (B)  Pewter
• (C)  Solder
• (D)  Babbitt metal

Answer

Submitted By :Ali Uppal

Polythene (low or high density) containers are not corroded by___________________?

• (A)  Sulphuric acid (10%) at room temperature
• (B)  Nitric acid (95%) at room temperature
• (C)  Sulphur trioxide at 60°C
• (D)  Any of these

Answer

Submitted By :Ali Uppal

The process of coating steel sheets by zinc to improve its corrosion resistance is called___________________?

• (A)  Calorising
• (B)  Galvanising
• (C)  Zincification
• (D)  Tempering

Answer

Submitted By :Ali Uppal

Trough of an apron conveyor is made of___________________?

• (A)  Lead lined concrete vessel
• (B)  Wood
• (C)  Metal
• (D)  Either

Answer

Submitted By :Ali Uppal

Maximum consumption of copper is in__________________?

• (A)  Utensil manufacture
• (B)  Electrical industry
• (C)  Industrial equipment manufacture
• (D)  Small scale industries

Answer

Submitted By :Ali Uppal