Which one of the following is incombustible ?

Safety matches is produced using

Titanium is added to molten aluminium alloys before casting for the purpose of

All of the following alloying elements of steel increases hardness but sacrifice ductility, except

The instrument based on the following principle is used for the measurement of oxygen only in the flue gases.

Adhesives

Which of the following is a boiler accessory i.e., not a boiler mounting ?

With increase in carbon percentage in steel, its

Earing is a defect found in steels after the following metal working operation (s).

Area under the stress-strain curve upto the __________ is referred to as the modulus of resilience.

The following type of bonding is strongly directional in solids.

Fluorine is not a constituent of

Yield strength of a material is determined by the __________ test.

LVDT used for displacement measurement is a/an __________ transducer.

Which of the following is capable of acting both as an acid flux as well as a basic flux in the metal extraction from its ore ?