Check all the following loads that are gravity loads.

Snow load
Wind load
Rain load
Earthquake load
Blast load
Dead load
Live load


Snow load ?
Wind load
Rain load ?
Earthquake load
Blast load
Dead load ?
Live load ?

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Problem 1.52 Solve Prob. 1.51, assuming that the structure has been redesigned to use 5/16-in.-diameter pins at A and C as well as at B and that no other changes have been made. Problem 1.51 Link AC is made of a steel with a 65-ksi ultimate normal stress and has a 14× 12-in. uniform rectangular cross section. It is con¬nected to a support at A and to member BCD at C by 38-in.-diameter pins, while member BCD is connected to its support at B by a 5 16-in.-diameter pin. All of the pins are made of a steel with a 25-ksi ultimate shearing stress and are in single shear. Knowing that a factor of safety of 3.25 is desired, determine the largest load P that can be applied at D. Note that link AC is not reinforced around the pin holes.

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Steel-wire bar supports that offer no protection against rusting are designated as Class _____.

a. A b. B c. C d. D

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Where are shorting bars used?

A) In pretensioners B) In the airbag controller C) At the connectors for airbags D) In the crash sensors

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Battery voltage is quickly checked with a(n) ____.

A. ohmmeter B. ammeter C. voltmeter D. thermometer

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