PROBLEM 2.C3 Rod AB consists of n elements, each of which is homogeneous and of uniform cross section. End A is fixed, while initially there is a gap ?0 between end B and the fixed vertical surface on the right. The length of element i is denoted by its cross-sectional area by its modulus of elasticity by and its coefficient of thermal expansion by After the temperature of the rod has been increased by the gap at B is closed and the vertical surfaces exert equal and opposite forces on the rod. (a) Write a computer program which can be used to determine the magnitude of the reactions at A and B, the normal stress in each element, and the deformation of each element. (b) Use this program to solve Probs. 2.59 and 2.60.
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An advantage of turning between centers is that:
A) It produces less chatter than by other methods B) A more positive drive is possible C) Long work can be supported in a steady rest so facing or boring can be carried out D) A shaft can be removed or turned end for end without loss of runout concentricity
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What is the minimum trade size EMT permitted for twelve 12 AWG THWN copper conductors supplying a junction box that feeds fluorescent luminaires?
A. 1-1/4 in. B. 1 in. C. 3/4 in. D. 1/2 in.
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____________________ are toothed wheels fixed to an axle.
Fill in the blank(s) with the appropriate word(s).
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Hydric soils may be mottled with white or ____ coloring or may be very yellow
A) green B) orange C) gray D) purple
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