What is the reason for the hourglass shape that is used on the worm gear on some manual steering gear?
A. increases ratio during over-center operation
B. increases ratio as steering cuts into a turn
C. ensures less steering effort required for straight-ahead driving
D. thicker teeth are required for greater force required to turn the vehicle
Answer: B
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What will be an ideal response?
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Which of the following is not true about greenhouse vegetable production?
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