GATE 2016- Set 1 By: Lohit K Yadav
A plastic sleeve of outer radius ro 1 mm covers a wire (radius r = 0.5 mm) carrying electric current. Thermal conductivity of the plastic is 0.15 W/m-K. The heat transfer coefficient on the outer surface of the sleeve expos 25 W Due to the addition of the plastic cover, the heat transfer from the wire to the ambient will A) increase B) remain the same C) decrease D) be zero air is
o 15 h-k 2 -Ic
Propane (C2HR) is burned in an oxygen atmosphere with 10% deficit oxygen with respect to the stoichiometric requirement. Assuming no hydrocarbons in the products, the volume percentage of CO in the products is
2 21 10% Debut 2 44 2 M
Consider two hydraulic turbines having identical specific speed and effective head at the inlet. If the speed ratio (N1/N2) of the two turbines is 2, then the respective power ratio (P1/P2) is
S, N, VP. sH ^ -o.es 2 2.
The INCORRECT statement about regeneration in vapor power cycle is that it increases the irreversibility by adding the liquid with higher energy content to the steam generator heat is exchanged between the expanding fluid in the turbine and the compressed fluid before heat addition he principle is similar to the principle of Stirling gas cycle it is practically implemented by providing feed water heaters.T A) B) C) D)
The "Jominy test" is used to find A) Young's modulus B) hardenability C) yield strength D) thermal conductivity
Lohit Kumar Yadav
IRSME. Graduated in Mechanical engineering. Secured AIR 1 in ESE 2017. Appeared for BARC, ISRO, IOCL, BPCL, BEL interviews.