Engineering Thermodynamics - Practice Test

[#131] An open cycle gas turbine works on

(A) Otto cycle

(B) Carnot cycle

(C) Joule's cycle

(D) Stirling cycle

Correct Answer

(C) Joule's cycle

[#132] One watt is equal to

(A) 1 Nm/s

(B) 1 N/m

(C) 1 Nm/hr

(D) 1 kNm/hr

Correct Answer

(A) 1 Nm/s

[#133] If a gas is heated against a pressure, keeping the volume constant, then work done will be equal to

(A) +ve

(B) -ve

(C) Zero

(D) Anywhere between zero and infinity

Correct Answer

(C) Zero

[#134] The specific heat of air increases with increase in

(A) Temperature

(B) Pressure

(C) Both pressure and temperature

(D) Variation of its constituents

Correct Answer

(A) Temperature

[#135] The sum of internal energy (U) and the product of pressure and volume (PV) is known as

(A) Work done

(B) Entropy

(C) Power

(D) Enthalpy

Correct Answer

(D) Enthalpy

Explanation

Solution: H = U + PV Where, H = Enthalpy, U = Internal energy, PV = Product of pressure & volume.

Engineering Thermodynamics - Study Mode

[#131] An open cycle gas turbine works on

Correct Answer

[#132] One watt is equal to

Correct Answer

[#133] If a gas is heated against a pressure, keeping the volume constant, then work done will be equal to

Correct Answer

[#134] The specific heat of air increases with increase in

Correct Answer

[#135] The sum of internal energy (U) and the product of pressure and volume (PV) is known as

Correct Answer

Explanation