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Which of the following is an intensive property of a system ?
A) Pressure B) Mass
C) Enthalpy D) Density

Specific internal energy and specific volume of a pure substance under 8MPa and
400°C are 2864 kJ/kg and 0.03432 m3/kg respectively. What is its specific enthalpy ?
A) 3138.56 kJ/kg B) 3224.46 kJ/kg

C) 3624.78 kJ/kg D) 3016.48 kJ/kg

Gibbs free energy G is given by
A) G=H+TS B) G=H-TS
C) G=H/TS D) G=HT/S

A diathermic wall permits heat transfer by
A) Conduction only B) Convection only
C) Radiation only D) All the three modes of heat transfer

For ductile materials, toughness is the measure of
A) Resistance to scratching
) Resistance to indentation
C) Ability to absorb energy to fracture
) Ability to absorb energy till elastic limit

The ultimate tensile strength of mild steel in the engineering stress strain curve refers to
A) Yield stress B) Maximum stress
C) Proportional limit D) Fracture stress

A measure of Rockwell hardness is the
A) Depth of penetration of indenter B) Surface area of indentation
C) Projected area of indentation D) Volume of indentation

The test for measuring the hardness of thin section is
A) Vickers hardness test B) Charpy test
C) Knoop hardness test D) Herbert cloud burst test

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