Which of the following property is desirable for materials used in tools and machines? Malleability Elasticity Plasticity Ductility TRUE ANSWER : ? YOUR ANSWER : ?
Blast furnace is used to produce Cast iron Steel Wrought iron Pig iron TRUE ANSWER : ? YOUR ANSWER : ?
The temperature required for full annealing in hypereutectoid steel is 30° C to 50° C below upper critical temperature 30° C to 50° C above upper critical temperature 30° C to 50° C below lower critical temperature 30° C to 50° C above lower critical temperature TRUE ANSWER : ? YOUR ANSWER : ?
A coarse grained steel Is less tough and has a greater tendency to distort during heat treatment Is more ductile and has a greater tendency to distort during heat treatment Is less tough and has a less tendency to distort during heat treatment Is more ductile and has a less tendency to distort during heat treatment TRUE ANSWER : ? YOUR ANSWER : ?
Solder is an alloy consisting of Lead and zinc Tin and copper Tin and lead Tin, antimony, copper TRUE ANSWER : ? YOUR ANSWER : ?
The following element can't impart high strength at elevated temperature Silicon Magnesium Manganese Nickel TRUE ANSWER : ? YOUR ANSWER : ?
Addition of silicon to aluminium results in Improving machinability One of the best known age and precipitation hardening systems Improvement of casting characteristics Improvement of corrosion resistance TRUE ANSWER : ? YOUR ANSWER : ?
Aluminium bronze contains aluminium and copper in the ratio of 2.1180555555556 2.5277777777778 40 : 60 0.47916666666667 TRUE ANSWER : ? YOUR ANSWER : ?
The blade of a power saw is made of Malleable cast iron Boron steel Stainless steel High speed steel TRUE ANSWER : ? YOUR ANSWER : ?