In Belt drives when the belt passes from the slack side to the tight side a certain portion of the belt extends. Similarly when the belt passes from the tight side to slack side it contracts. Hence creep in belt drive is due to uneven extensions and contractions of the belt when it passes from tight side to slack side.
This phenomenon of alternative stretching and contraction of the belt results in relative motion between the belt and the pulley surface. This relative motion is called creep.
38) Creep in belt drive is due to
Answer is:
Uneven extensions and contractions of the belt when it passes from tight side to slack side
Explanation:
Related Theory of Machines MCQ with Answers
Answer is:
Average tension of the tight side and side of the belt.
Answer is:
Spur gearing
Explanation:
When two parallel and coplaner shafts are connected by gears having teeth parallel to the axis of the shaft called spur gears, the arrangement is known as spur gearing.
Another name given to the spur gearing is helical gearing in which the teeth are inclined to the axis of the shaft. There are single and double helical gears. The double helical gears are known as herringbone gears.
Answer is:
Intersecting and coplanar shafts.
Explanation:
When two non-parallel or intersecting, but coplaner shafts are connected by gears, then these gears are called bevel gears and the arrangement is known as bevel gearing. The bevel gears, like spur gears, may also have their teeth inclined to the face of the bevel, in which case they are known as helical bevel gears.