Tech A says never use a water hose to clean up dust after a repair. Tech B says never use a floor scrubber to clean up dust after repairs. Who is correct?

A square silicon chip (k = 152 W/m·K) is of width 7 mm on a side and of thickness 3 mm. The chip is mounted in a substrate such that its side and back surfaces are insulated, while the front surface is exposed to a coolant.

Estimate the weight of a 25 km gas pipeline with a DN 600 mm, OD of 610 mm, and a wall thickness of 12.7 mm.

or the following pairs of alloys that are coupled in seawater, predict the possibility of corrosion; if corrosion is probable, note which metal/alloy will corrode.

3-kg plastic tank that has a volume of 0.2 m3 is filled with liquid water. Assuming the density of water is 1000 kg/m3, determine the weight of the combined system.

Higher molecular weight results in worst mechanical properties. a) - True b) - false?

16 Suppose that a steel of eutectoid composition is cooled to 550°C (1020°F) from 760°C (1400°F) in less than 0.5 s and held at this temperature.

The rotor in a shaded pole motor consists of A coils energized by alternating current B a short circuited loop of copper wire c a permanent magnet D an iron cylinder

What factors are likely to promote the formation of stress corrosion cracks?

Find the mass if the force is 18 N and the acceleration is 2 m/s2

Which process must first take place in order for the proteins in foods to be used by body cells? (1) digestion (3) synthesis (2) storage (4) excretion