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Technical Drawing for Engineering Communication

Engineering

Quiz 16 :

Gears

Quiz 16 :

Gears

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Rotary motion is changed into reciprocating motion by a rack.
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True False
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True

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Power and motion are transmitted between intersecting shafts at right angles to each other by bevel gears.
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True False
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True

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Gears are unable to change direction of rotation.
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False

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Gears are designed to do all of the following except:
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A rack gear is similar to a spur gear except the teeth are in a straight line.
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Diametrical pitch can be defined as:
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How many teeth are on a spur gear having a pitch diameter of 1.750, diametrical pitch of 20, and outside diameter of 1.850?
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The outside diameter of a spur gear having a pitch diameter of 1.500 and 48 teeth is 1.68.
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The circular pitch of a bevel pinion having a 16 diametrical pitch and 20 teeth is 1.43.
True False
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The main difference between a miter gear and a bevel gear is the ratio of teeth.
True False
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An angle gear is designed with teeth at 45, 60, or 90 degrees to each other.
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The outside diameter of a friction is called the pitch diameter.
True False
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The pitch diameter of a spur gear having 40 teeth and a diametrical pitch of 20 is 19.68.
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Which of the following is not a widely used type of gear?
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The pitch diameter of a gear can be thought of as the outside diameter of the friction wheel.
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A ratio of 2:1 between Gear A and Gear B means that Gear B rotates two times every time Gear A rotates once.
True False
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Two or more gears used to achieve a designed rpm is a gear blank.
True False
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What is the dedendum of a spur gear having a pitch diameter of 3.000 and 48 teeth?
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The root diameter of a spur gear having a pitch diameter of 2.000 and 32 teeth is 1.75.
True False
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A worm gear is used to transmit motion and power at 90 degrees between intersecting shafts.
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