Which simple engineering control technique can be used to reducing dust generation ? Mack is a construction worker . He has to cut various parts . To reduce the dust generating while machining he can use water or a on the cutting machine's blades

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.

Abarometer contains mercury with a density of 13600 kg/m3. atmospheric conditions are 95.8 kpa and 20 °c at 20 °c, the vapor pressure of the mercury is 0.000173 kpa. the column of mercury will rise to a height of most nearly. select one: a)- 0.38 m b)- 0.82 m c)- 0.48 m d)- 0.72 m

When subject to a steady load (within elastic range) over a long period of time, what is the major difference in material behavoir between steel and plastic?