Consider flow of air above a plate (pia =2.154 W/mK) with velocity 5 m/s along the length 0.5 m of the plate, the properties of air are: kai 36.4×1003 W/m K v=30.84×10-06 m²/s Pr = 0.687 Calculate the average heat transfer coefficient. (A)4.18 W/m² K (B)8.14 W/m²-K (C)18.4 W/m²-K (D) 12.14 W/m²K The temperature at which the substance changes its phase is called. A) Boiling Temperature B) Saturation Temperature C) Stagnation Temperature D) Sublimation Temperature When a structure is subjected to stress, the irrevocable deformation that remains in that structure is, A) Resilience B) Ductility C) Permanent Set D) Plasticity A car uses a fuel at a rate of 22 L/h and produces 55 kW of power. Calculate the efficiency of the car engine. The fuel has the following properties: heating value = 44000 kJ/kg density = 0.3 g/cm³ A) 65.2% B) 52.6% C) 68.1% D) 26.5% The velocity of flow of fluid is represented by the equation: V=2x+3yj. The equation of the stream line passing through the point (4,3) is (A) 0.72x=4/2 1/2 (B)=0.72x (C) 0.72x¹² = 11/2 (D) None of these Calculate the equivalent resultant force for the following loading system and determine the location of the resultant force intersects the member BC from point C. 175 lb 250 lb 3 C 5 ft 3 ft ++ 6 ft 60 lb 5 ft A) 416 lb, 0.1 ft B) 416 lb, 10.9 ft C) 325 lb, 2.29 ft D) 260 lb, 8.71 ft The emissive power of a black body is (A)π (B)2π (C)3π (D)4π times the intensity of radiation.