Multiple Choice Questions (MCQ) with Answers on Mechanical Engineering
1-Which one of the following relations defines Hermholtz function F?
2-Second law of Thermodynamics defines:
(C) Internal energy
3-Which parameter remains constant during a reversible adiabatic process?
(D) Internal energy
4-Which parameter remains constant during Joule Thomson expansion?
5-For an ideal gas the compressibility factor is
6-Which one of the following is the extensive property of the system?
7-An example of a turbine with high head and low specific speed is:
8-The ratio of the pitch diameter of pelton wheel to the diameter of the jet is called:
(A) Jet ratio
(B) Speed ratio
(C) Wheel ratio
(D) None of the above
9-The specific speed of a Francis turbine which develops 7225 kW power under a head of 25 metres at 135 rpm is:
10-The head loss due to friction for the flow of water through penstocks can be minimized by:
(A) Decreasing the diameter of penstock
(B) Increasing the diameter of penstock
(C) Increasing the length of penstock
(D) Increasing the velocity of flow
1-(D), 2-(D), 3-(C), 4-(A), 5-(B), 6-(A), 7-(C), 8-(A), 9-(D), 10-(B)