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Which of the following head loss is significant in a pipe flow?
(A) Loss of head due to gradual contraction

(B) Loss of head due to friction

(C) Loss of head due to sudden enlargement

(D) Loss of head due to sudden contraction

Which relation is incorrect?
(A) Pelton Turbine - Impulse Turbine (B) Francis Turbine - Impulse Turbine
(C) Kaplan Turbine - Reaction Turbine (D) Francis Turbine - Reaction Turbine

The energy of the isolated system is always a constant, which is given by:
(A) Zeroth law of thermodynamics (B) First law of thermodynamics
(C) Second law of thermodynamics (D) Third law of thermodynamics

A series of operations, which takes place in a certain order and restore the initial
conditions at the end, is known as

(A) Reversible cycle (B) Irreversible cycle
(C) Thermodynamic cycle (D) None of these

The most efficient method of compressing air is to compress it
(A) Adiabatically (B) lsentropically
(C) Isothermally (D) Isochorically

41°C is equal to
(A) 273.15 K (B) 274.15 K
(C) 283.15 K (D) 263.15 K

Which of the following devices complies with the Clausius statement of the second
law of thermodynamics?

(A) Closed-cycle gas turbine (B) Internal combustion engine

(C) Steam power plant (D) Domestic refrigerator

Carnot cycle consists of

(A) Two constant volume & two isentropic processes

(B) Two isothermal and two isentropic processes

(C) Two constant pressure and two isentropic processes

(D) One constant volume, one constant pressure and two isentropic processes

The ratio of brake power to indicated power of an I.C. engine is called
(A) Mechanical efficiency (B) Thermal efficiency
(C) Volumetric efficiency (D) Relative efficiency

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