Common types of steel-erection accidents include all of the following, except _____.
a. hand injuries
b. falls from elevation
c. back injuries
d. lightning strike
d. lightning strike
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The __________cylinder is found in the drum of a hydraulic drum brake system.
A. master B. slave C. delay D. perimeter
Petroleum is used to make:
a. Medicines c. Plastic b. Cosmetics d. All answers are correct.
Draw the envelopes for maximum shear and moment in a 24-ft-long simply supported beam produced by a live load that consists of both a uniformly distributed load of 0.4 kip/ft of variable length and a concentrated load of 10 kips (Figure P12.42). The 10-kip load can act at any point. Compute values of the envelope at the supports, quarter points, and midspan.
What is the term for the force that causes the rotation of the shaft in a magnetic field?
A. magnetism B. torque C. polarity D. mechanics