GATE 2016- Set 3 By: Lohit K Yadav
Density of water is 1000 kg/m3. Acceleration due to gravity g -10 m/s2 The water jet exiting from a stationary tank through a circular opening of diameter 300 mm impinges on a rigid wall as shown in the figure. Neglect all minor losses and assume the water level in the tank to remai The experienced by the wall kN Stationary rigid wall 6.2 m Circular opening of diameter 300 mm nstant. horizontal force is
s m Nou,v2sh
A cylindrical steel rod, 0.01 m in diameter and o.2 m in length is first heated to 750 C and then immersed in a water bath at 100 C. The heat transfer coefficient is 250 W/m2-K. The density, specific heat and thermal conductivity of steel are r-7801 kg/m3, c 473 J/kg-K. and k 43 W/m-K, respectively. The time required for the rod reach 300 C is to seconds.
3301 x . . 2 3x473. 250 So-109
In a mixture of dry air and water vapor at a total pressure of 750 mm of Hg, the partial pressure of water vapor is 20 mm of Hg. The humidity ratio of the air in grams of water vapor per kg of dry air (gw/kgda) is
Saa Mo 622 lco ds
In a 3-stage air compressor, the inlet pressure is p,discharge pressure is p, and the intermediate pressures are p2 and p3 (p2 < p3). The total pressure ratio of the compressor is 10 and the pressure ratios of the stages are eaual If P, 100 kPa, the value of the pressure p, (in kPa) is
Lohit Kumar Yadav
IRSME. Graduated in Mechanical engineering. Secured AIR 1 in ESE 2017. Appeared for BARC, ISRO, IOCL, BPCL, BEL interviews.