MSSC - Manufacturing Processes and Production Test Questions with 100% Correct Answers | Updated & Verified | 2024

The three common types of mechanisms are levers, ______, and inclined planes. wheels The metric system expresses force in ______. newtons A spring scale is used to measure ______. force The English unit of measure of weight is the ______. pound-force (lb-f) The Law of Moments can be used to determine ______. both the force needed to balance OR force needed to move a load Torque can be calculated by multiplying the distance from the fulcrum and ______. the force applied A force that makes an object rotate about a point is called ______. torque A second-class lever has its ______. load between the fulcrum and the effort arm A third-class lever has its ______. effort arm between the fulcrum and the loadA(n) ______ is produced when forces applied to a lever cause it to rotate. rotational moment Mechanical advantage is the ratio of the force required to move a load divided by _____. the effort force applied The mechanical advantage of a third-class lever can be found by the ratio of the length of the ______ arm divided by the length of the ______ arm. effort, resistance The coefficient of friction is the ratio of the force of friction divided by the ______. normal force Rolling friction is ______. less than both static and kinetic friction What is the unit of measure for the coefficient of friction? it has no unit One application that takes advantage if both high and low friction is a(n) ______. belt sander A wheel reduces friction because _____ friction is less than sliding friction. rolling The mechanical advantage of an inclined plane is the ratio of the ______ of the inclined plane divided by its ______. length, height The double rocker linkage is one type of ______ linkage. four barThe slider crank linkage is also known as the ______ linkage. three bar What type of linkage consists of a driver arm, connecting rod, and a follower? double rocker The follower of the ______ linkage moves in an arc. crank rocker A ______ linkage changes rotary motion into reciprocating (back and forth) motion. slider crank The crank rocker linkage is one type of ______ linkage. four bar A ____ is mounted on a shaft by means of a key. cam The four properties of a cam are: rise, fall, ______, and constant velocity. dwell A cam is a wheel that, when combined with a cam follower, produces a(n