A. Internal energy
B. Enthalpy
C. Entropy
D. Temperature
Related Mcqs:
- 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 - Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young’s modulus, G = Modulus of rigidity or shear modulus v = Poisson’s ratio) ?
A. E = 2G (1 + v)
B. E = G (1 + v)
C. E = G (1 + v)/2
D. E = 2G (1 + 2v) - The heat of neutralisation remains constant, when there is a reaction between dilute solutions of strong _____________________?
A. Base and strong acid
B. Base and weak acid
C. Acid and weak base
D. None of these - ______________________ temperature remains constant during adiabatic saturation process of unsaturated air ?
A. Dew point
B. Dry bulb
C. Wet bulb
D. None of these - Compressed dry air is used as the cutting fluid, while machining____________________?
A. Steel
B. Cast iron
C. Aluminium
D. None of these - When the wet steam is throttled but still remains wet at the exit of the throttle valve, then its temperature & dryness fraction respectively____________________?
A. Decreases & increases
B. Increases & increases
C. Increases & decreases
D. Decreases & decreases - A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson’s ratio of the rod is___________________?
A. 0
B. 0.33
C. 0.44
D. 0.25 - Inertial forces are obtained, when the elastic forces are multiplied by ______________ number?
A. Mach
B. Froude
C. Reynolds
D. Euler - The elastic strain in copper is due to the__________________?
A. Motion of dislocations
B. Stretching of atomic bonds
C. Breakage of atomic bonds
D. None of the above - Diffusion co-efficient of a metal in a solid solution depends upon its ?
A. Composition
B. Temperature
C. Both A. & B.
D. Neither A. nor B.
