MSSC Manufacturing Processes and Production Exam (questions and answers)

MSSC Manufacturing Processes and Production Exam (questions and answers) The three common types of mechanisms are levers, ______, and inclined planes. - CORRECT ANSWER-wheels The metric system expresses force in ______. - CORRECT ANSWER-newtons A spring scale is used to measure ______. - CORRECT ANSWER-force The English unit of measure of weight is the ______. - CORRECT ANSWER-poundforce (lb-f) The Law of Moments can be used to determine ______. - CORRECT 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 ______. - CORRECT ANSWER-the force applied A force that makes an object rotate about a point is called ______. - CORRECT ANSWER-torque A second-class lever has its ______. - CORRECT ANSWER-load between the fulcrum and the effort arm A third-class lever has its ______. - CORRECT ANSWER-effort arm between the fulcrum and the load A(n) ______ is produced when forces applied to a lever cause it to rotate. - CORRECT ANSWER-rotational moment Mechanical advantage is the ratio of the force required to move a load divided by _____. - CORRECT 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. - CORRECT ANSWEReffort, resistance The coefficient of friction is the ratio of the force of friction divided by the ______. - CORRECT ANSWER-normal force Rolling friction is ______. - CORRECT ANSWER-less than both static and kinetic friction What is the unit of measure for the coefficient of friction? - CORRECT ANSWER-it has no unit One application that takes advantage if both high and low friction is a(n) ______. - CORRECT ANSWER-belt sande