If you are sampling a 50Hz signal, what is the minimum sampling rate necessary to prevent aliasing? Why?

True/False An anemometer displays wind direction, wind speed, altitude and type of precipitation

Students are expected to respond to one of the two questions described below. Students should provide examples to clarify their response. 1.

A square-thread power screw has a major diameter of 32 mm and a pitch of 4 mm with single threads, and it is used to raise a load putting a force of 6.5 kN on the screw. The coefficient of friction for both the collar and screw is. 08.

Which of the following waste characteristic is considered to be hazardous: A. Ignitable waste B. Corrosive C. Reactive D. All of the above

Calculate the stress developed in the following members that are each subjected to an axial tensile load of 70 kN: (a) steel bar, 25 mm by 50 mm (b) 150-mm-diameter wood post (use the given diameter) (c) 25-mm-diameter steel tie rod

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