Machine Design Questions and Answers – Gear Trains

This set of tricky Machine Design Questions & Answers focuses on “Gear Trains”.

1. If driving gear rotates CW, driven gear will rotate?

a) ACW
b) CW
c) Both CW and ACW
d) Can’t be determined
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2. If driving gear rotates ACW, driven gear will rotate in which direction?

a) ACW
b) CW
c) Both CW & ACW
d) Can’t be determined
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3. A compound gear train consists of at least 3 shafts connected to each other.
a) True
b) False
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4. If driving gear rotates in CW, then driven gear will rotate in?

a) CW
b) ACW
c) CW & ACW
d) Can’t be determined
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5. If centre distance between the two gears on same shaft is unequal to the centre distance on the other two gears on the second shaft, then this gear train is called reverted gear train.
a) True
b) False
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6. If one gear is fixed while the other gear has motion of two types i.e. rotary about its own axis and rotation about axis of fixed gear, than the gear train is _____
a) Epicyclic gear train
b) Reverted gear train
c) Kepler gear train
d) None of the mentioned
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7. Which of the following are true about epicyclic gear train?
a) Fixed gear is called sun gear
b) Rotating gear are called earth gear
c) Crank is called sun carrier
d) None of the listed
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8. Epicyclic gears are not generally recommended due to bulky construction.
a) True
b) False
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