Which of the following represents how costs should be analyzed? All costs need to be predicted and accounted.
All costs need to be divided into categories.
All costs need to be documented in a design matrix.
O All costs need to be separated into direct and indirect costs.

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Which of the following components of a pid controlled accumulates the error over time and responds to system error after the error has been accumulated? a)- proportional b)- derivative c)- integral d)- on/off.

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.