Upon examination of an engine that will not start after a complete overhaul, the technician finds that both the intake and exhaust valves are open at the same time when the piston is 1" (2.34cm) past TDC on the intake stroke. Technician A says this phenomenon is valve overlap and could not be the cause of the engine not starting. Technician B says the camgear is not properly indexed with the crankgear. Which technician is correct? Technician A
Technician B
Both Technician A and B
Neither Technician A or B

If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody