Forced air with temperature of 10 °C and velocity of 15 m/s flows on a heated flat plate (200 cm long and 20 cm width) at surface temperature of 100 °C. The thermal conductivity, kinematic viscosity, density, and Prandtl number of the air are k = 0.026 W/m. C, ν = 1.6 x 10-5 m2/s, rho = 1.12 and Pr = 0.71, respectively. What is the heat transfer rate of the entire surface?

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10

Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer