For a speed ratio of 100, smallest gear box is obtained by using

1.	For a speed ratio of 100, smallest gear box is obtained by using
A.	a pair of spur gears
B.	a pair of helical and a pair of spur gear compounded
C.	a pair of bevel and a pair of spur gear compounded
D.	a pair of helical and a pair of worm gear compounded
Answer» E.

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For a speed ratio of 100, smallest gear box is obtained by using

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