The main constituent of carborundum is ___________________ carbide? A. CalciumB. Silicon C. Boron D. Aluminium

Carbon tetrachloride can be stored in a storage vessel made of________________? A. High silicon iron (14% Si) B. Tin C. Stainless steelD. All A., B. and C.

Approximate value of the modulus of elasticity for steel is about _____________ × 106kg/cm2? A. 0.5B. 2 C. 40 D. 75

Straight silicon steel (containing Si from 0.5 to 5%) because of their low hysteresis loss and high magnetic permeability are used for electrical appliances. Which of the following electrical appliances made of silicon steel contains maximum percentage of silicon (about…

Mercury is transported in metal containers made of________________? A. AluminiumB. Iron C. Lead D. Nickel

Teflon (PTFE) is corroded by_______________? A. Hydrochloric acid (10%) B. Hydrochloric acid (95%) C. Sulphuric acidD. None of these

Liners of a ball mill are never made of__________________? A. Lead B. Alloy steel C. Rubber or ceramic material D. Cast iron

Which of the following undergoes granular fracture ? A. Wrought ironB. Steel C. Cast iron D. None of these

Reactor used in the production of polyvinyl chloride (PVC) is made of____________________? A. Nickel or glass lined steel B. Aluminium C. Tantalum D. Lead

Presence of manganese in alloy steel improves its___________________? A. Corrosion resistance B. Cutting abilityC. Abrasion resistance & toughness D. Elasticity & creep resistance