In a rural area, two highways intersect. The east-west highway has no control, north-south highway has yield control. If a store located on the NW corner obstructs the view at a distance a= 45 ft (from the north-south vehicle path) and b= 90 ft (from the east-west vehicle path), and the design spee on the north-south highway is 20 mph. Required:
What is the maximum safe (design) speed on the east-west roadway?

Most leaks in reciprocating air compressors can be detected and minimized by: (clo4) a)-detecting leakage areas using ultrasonic acoustic detector. b)-tightening joints and connections c)-replacing faulty equipment d)-all of the given options

Inadequate stores control is not an obstacle to effective work order system. (clo4) a)-true b)-false

Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.