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Shop practice questions

50 questions from the mechanical aptitude practice test.

Shop practice test

10 questions, graded as you go, with the reason for every answer. No sign-up.

What this covers

Sample questions

Which tool is the usual choice for measuring the outside diameter of a shaft to the nearest thousandth of an inch?

  1. Steel tape measure
  2. Combination square
  3. Feeler gauge set
  4. Outside micrometer
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D. Outside micrometer

An outside micrometer closes on the shaft and reads directly to 0.001 in. A tape measure reads only to about 1/16 in.

Reference: Measuring tools: micrometer

How should a blade be installed in a hand hacksaw frame?

  1. With the teeth pointing toward the handle
  2. With the teeth pointing away from the handle
  3. With the teeth pointing up into the frame
  4. Either way; direction does not matter
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B. With the teeth pointing away from the handle

A hacksaw cuts on the push stroke, so the teeth must point forward, away from the handle. Fitted backward, the blade cuts poorly and dulls quickly.

Reference: Hand tools: hacksaw

What is a torque wrench used for?

  1. Tightening a fastener to a specified tightness
  2. Loosening fasteners that are rusted in place
  3. Holding a round pipe while it is threaded
  4. Measuring the diameter of a bolt or nut
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A. Tightening a fastener to a specified tightness

A torque wrench shows or limits the turning force applied so that a fastener is tightened to the specified value. It is a measuring tool and should not be used to break loose seized fasteners.

Reference: Hand tools: torque wrench

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