41) A weight of 200N is to be pulled over a surface with coefficient of friction 0.2. What is the force needed to start motion?

42) When an orifice for flow measurement in a pipe is replaced by a venturimeter, the pressure drop for the same flow is expected to

43) Operating characteristic (OC) curve shows probability of acceptance Vs fraction _____

44) Break even analysis considers _____ cost (s).

45) A 4-pole 50 Hz induction motor runs at 1455 rpm. What is the slip speed?