A. Inconel
B. Hastelloy
C. Nimonic alloys
D. Duralumin
Which of the following is not an alloy of nickel and chromium ? Read More »
Materials and Construction A. Topaz
B. Carborundum
C. Corundum
D. Calcite
The hardest material just prior to diamond in Mho’s scale is___________________? Read More »
Materials and Construction A. 12
B. 18
C. 24
D. 30
A. Nickel
B. Cobalt
C. Tungsten
D. Chromium
A. Mild steel
B. Cast iron
C. Refractory blocks
D. Stainless steel
Tank furnace used for melting of glass is made of___________________? Read More »
Materials and Construction A. Harden its surface
B. Soften its surface
C. Improve its reliability
D. None of these
The purpose of nitriding the steel is to___________________? Read More »
Materials and Construction A. Alloying
B. Galvanising
C. Utensil manufacture
D. Electrical industry
Maximum consumption of zinc is in____________________? Read More »
Materials and Construction A. Simple hexagonal
B. Body centred cubic
C. Face centred cubic
D. None of these
Which of the following crystal structures characterises the austenitic stainless steel ? Read More »
Materials and Construction A. Phosphorous and tungsten
B. Nickel and chromium
C. Lead and vanadium
D. Molybdenum and tungsten
Corrosion resistance of steel is increased by the addition of_________________? Read More »
Materials and Construction A. Steel
B. Aluminium
C. Glass
D. Lead lined
Liquid ammonia is shipped in _____________ containers? Read More »
Materials and Construction