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All rotating machinery parts are supported by bushings.

A) True
B) False

Correct Answer

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False

In the thread note .562-12 UNC-2B, the B indicates an internal thread.

A) True
B) False

Correct Answer

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When using a journal or sleeve bearing, the shaft should be softer than the bearing material in order to minimize bearing wear.

A) True
B) False

Correct Answer

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If there is no depth indicated, the If there is no depth indicated, the symbol calls for a spotface. symbol calls for a spotface.

A) True
B) False

Correct Answer

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UNC stands for ____.


A) Unified National Coarse
B) Unified National Code
C) Union National Coarse
D) Unified National Close

E) B) and D)
F) A) and B)

Correct Answer

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Journal bearings are usually made of cast or porous ____________________.

Correct Answer

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Ball, roller, and needle bearings are classified as ____ bearings.


A) combined load
B) antifriction
C) contact
D) thrust

E) None of the above
F) All of the above

Correct Answer

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A metric thread with a diameter of ten millimeters would be designated on a drawing as ____________________.

Correct Answer

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M10

The abbreviation for REQUIRED is ____.


A) REQ'D
B) REQ'D.
C) REQD.
D) REQD

E) B) and C)
F) A) and D)

Correct Answer

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HEX. Is the abbreviation for hexagon.

A) True
B) False

Correct Answer

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Bearings are classified as plain bearings and _________________________ bearings.

Correct Answer

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antifriction

The most common types of plain bearings are journal (sleeve) bearings and ____________________ bearings.

Correct Answer

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Showing 1 - 12 of 12

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