Tempering of a material does not improve its____________________?

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Boiler tube size is specified by its thickness and _____________________ diameter ?

A. Outside B. Inside C. Mean D. None of these...

Which of the, following is not associated with the functioning of a petrol engine ?

A. Compression ignition system B. Spark plug C. Carburettor D. Otto cycle...

Basic open hearth furnace (BOF) is not used for producing ______________ steel?

A. Killed B. Rimming C. High alloy D. None of these...

A highly elastic material is deformed least on loading and retains its original form on removal of the load. Which of the following is the most elastic material ?

A. Steel B. Glass C. Rubber D. Brass...

_______________ is the trade name assigned to a non-ferrous cast alloy composed of cobalt, chromium & tungsten ?

A. Stellite B. High speed steel C. Cermet D. Alnico...