For a rectangular cross-section silicon beam simp support at its both ends with a length of 10 cm, width 3mm and thickness 1 mm, compute its first mode resonant frequency. Drive the scaling law for the resonant frequency of such beam, assuming an isometric length scaling. Using such a scaling law, compute the resonant frequency of the beam when you scale it down 1,000 times smaller.

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.

Manometers are good examples of measuring instruments, nowadays they are not as common as before. a)-capacitive probe gauges b)-gravitational gauges deformation ) gauges d)-digital gauges

Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above