A pesticide truck spills 55 kg (121 lb) of 80% endrin on a dirt road over 85 m2 (914 ft2). The average spill depth is 4 cm (1.6 in.). The bulk density of the soil is 1800 kg/m3. How long will it take for the endrin to volatilize to a level of 1 ppb in the soil?

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false

What are the two (02) benefits, which may result from a successful implementation of preventive maintenance (pm) program in an organization? (clo3)a)- lean manufacturing b)-overlapping responsibilities c)-the planner is not qualified d)-accurate contractor information e)-reduction in equipment redundancies f)-accurate stores information

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