Jeff is working at a construction site for a shopping mall. his job is to determine labor costs and negotiate prices of various raw materials from different contractors. what is Jeffs designation?

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

An electrical motor raises a 50kg load at a construct velencity .calculate the power of the motor, if it takes 40sec to raise the load through a height of 24m(take g =9.8n/g)

Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.