A. Natural
B. Neoprene
C. Butadiene
D. Nitrile
Related Mcqs:
- Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of _______________ gms of zinc per m2 of steel strip ?
A. 5-10
B. 1000-1500
C. 120-500
D. 1500-3000 - Liquor poisoning generally occurs due to the presence of _______________ in it?
A. Ethyl alcohol
B. Impurities
C. Methyl alcohol
D. Carbonic acid - The usual energy consumption in electric arc furnace steel making is _____________ KWh/ton of steel ?
A. 60 – 100
B. 400 – 700
C. 1200 -1500
D. 2000 – 2300 - Non-ferrous alloys used for making cutting tools need not have high__________________?
A. Abrasion resistance
B. Toughness
C. Red hardness
D. Cutting speed - Hollow shafts can be made as strong as solid shafts by making the twisting moments of both the shafts same. Shafts made by _____________ have residual stresses ?
A. Forging
B. Cold rolling
C. Hot rolling
D. Casting - ______________ wire is never used for making the heating element ?
A. Nichrome
B. Kanthal
C. Invar
D. None of these - Biological shield in a nuclear reactor is generally provided to protect against the__________________?
A. α-rays
B. β-rays
C. Gamma rays & neutrons
D. Electrons - Large diameter reinforced cement concrete (RCC) pipes are generally joined by ____________________ joint ?
A. Flanged iron
B. Collar
C. Flexible
D. Expansion - To improve the machinability of steel, it is generally subjected to _____________________?
A. Spheroidising
B. Tempering
C. Normalising
D. Annealing - _________________ furnace is generally used in the non-ferrous foundries ?
A. Direct arc
B. Indirect arc
C. Resistance
D. Induction
