This is the general term applied to describe a physical portion of a part or object, such as a surface, slot, tab, pin, keyseat, or hole.

A. feature
B. Feature of size
C. datum
D. none of the above


Answer: A

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The cable-supported roof for a summer theater, shown in Figure P6.15, is composed of 24 equally spaced cables that span from a tension ring at the center to a compression ring on the perimeter. The tension ring lies 12 ft below the compression ring. The roof weighs 25 lb/ft 2 based on the horizontal projection of the roof area. If the sag at midspan of each cable is 4 ft, determine the tensile force each cable applies to the compression ring. What is the required area of each cable if the allowable stress is 110 kips/in. 2 ? Determine the weight of the tension ring required to balance the vertical components of the cable forces.

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Which of the following is a general-purpose thread for holding purposes, designated NC?

a. Course thread b. Fine thread c. 8-pitch thread d. 12-pitch thread e. 16-pitch thread

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The period of oscillation for a pendulum on Earth is 2 seconds. If the given pendulum oscillates with a period of 4.9 seconds on the surface of the Moon, what is the acceleration due to gravity on the Moon’s surface? Express your answer in both SI and U.S. Customary units.

What will be an ideal response?

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How many degrees are represented by a 1/6 bend?

Fill in the blank(s) with the appropriate word(s).

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