MSSC - Manufacturing Processes and Production Questions With Correct Answers

The three common types of mechanisms are levers, ______, and inclined planes. - Answer wheels The metric system expresses force in ______. - Answer newtons A spring scale is used to measure ______. - Answer force The English unit of measure of weight is the ______. - Answer pound-force (lb-f) The Law of Moments can be used to determine ______. - Answer 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 ______. - Answer the force applied A force that makes an object rotate about a point is called ______. - Answer torque A second-class lever has its ______. - Answer load between the fulcrum and the effort arm A third-class lever has its ______. - Answer effort arm between the fulcrum and the load A(n) ______ is produced when forces applied to a lever cause it to rotate. - Answer rotational moment Mechanical advantage is the ratio of the force required to move a load divided by _____. - Answer 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. - Answer effort, resistance The coefficient of friction is the ratio of the force of friction divided by the ______. - Answer normal force Rolling friction is ______. - Answer less than both static and kinetic friction What is the unit of measure for the coefficient of friction? - Answer it has no unit One application that takes advantage if both high and low friction is a(n) ______. - Answer belt sander A wheel reduces friction because _____ friction is less than sliding friction. - Answer rolling The mechanical advantage of an inclined plane is the ratio of the ______ of the inclined plane divided by its ______. - Answer length, height The double rocker linkage is one type of ______ linkage. - Answer four bar The slider crank linkage is also known as the ______ linkage. - Answer three bar What type of linkage consists of a driver arm, connecting rod, and a follower? - Answer double rocker The follower of the ______ linkage moves in an arc. - Answer crank rocker A ______ linkage changes rotary motion into reciprocating (back and forth) motion. - Answer slider crank The crank rocker linkage is one type of ______ linkage. - Answer four bar A ____ is mounted on a shaft by means of a key. - Answer cam The four properties of a cam are: rise, fall, ______, and constant velocity. - Answer dwell A cam is a wheel that, when combined with a cam follower, produces a(n) ______ motion. - Answer reciprocating Turnbuckle has two bolts, where ______. - Answer one has left-hand threads and the other has right-hand threads On a CNC milling machine a movement along the X direction would move the ______. - Answer table In a CNC machine operation, zero offset ______. - Answer allows the operator to move the part to the most desirable location on the work table During the cutting action, the tool tip ______ the metal until it exceeds its fracture point. - Answer deforms Feed of a single point cutting tool most affects the ______. - Answer tool's life A built-up edge condition of a cutting tool causes it to ______. - Answer cut more deeply Round stock is specified using ______. - Answer diameter and length What is used most often to cut raw stock into shorter lengths? - Answer horizontal band saw When using a horizontal band sat to cut stock to a specific length, the saw blade should touch ______. - Answer just the outside of the line you created on the material On a vertical band saw, the blade guide should be set ______. - Answer 3/8 inches to 1/2 inches above the stock at its thickest point A ______ punch is used to create a very small indentation. - Answer prick Layout work is the operation of ______. - Answer transferring data from a technical drawing to the part A drill press will under-size the holes if the ______. - Answer drill bit has a worn margin The size of a drill is usually stamped on its ______. - Answer shank