A. Calcium
B. Silicon
C. Boron
D. Aluminium
The main constituent of carborundum is ___________________ carbide? Read More »
Materials and Construction A. High silicon iron (14% Si)
B. Tin
C. Stainless steel
D. All A., B. and C.
Carbon tetrachloride can be stored in a storage vessel made of________________? Read More »
Materials and Construction A. 0.5
B. 2
C. 40
D. 75
A. Armature of small motors/generators
B. Generators and small motors
C. Induction motors
D. High frequency transformers
A. Aluminium
B. Iron
C. Lead
D. Nickel
Mercury is transported in metal containers made of________________? Read More »
Materials and Construction A. Hydrochloric acid (10%)
B. Hydrochloric acid (95%)
C. Sulphuric acid
D. None of these
Teflon (PTFE) is corroded by_______________? Read More »
Materials and Construction A. Lead
B. Alloy steel
C. Rubber or ceramic material
D. Cast iron
Liners of a ball mill are never made of__________________? Read More »
Materials and Construction A. Wrought iron
B. Steel
C. Cast iron
D. None of these
Which of the following undergoes granular fracture ? Read More »
Materials and Construction A. Nickel or glass lined steel
B. Aluminium
C. Tantalum
D. Lead
A. Corrosion resistance
B. Cutting ability
C. Abrasion resistance & toughness
D. Elasticity & creep resistance
Presence of manganese in alloy steel improves its___________________? Read More »
Materials and Construction