and Production
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 pound-force (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 answer effort, resistance
, MSSC - Manufacturing Processes
and Production
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 sander
A wheel reduces friction because _____ friction is less than sliding friction. - ✔✔ correct answer
rolling
The mechanical advantage of an inclined plane is the ratio of the ______ of the inclined plane
divided by its ______. - ✔✔ correct answer length, height
The double rocker linkage is one type of ______ linkage. - ✔✔ correct answer four bar
The slider crank linkage is also known as the ______ linkage. - ✔✔ correct answer three bar
What type of linkage consists of a driver arm, connecting rod, and a follower? - ✔✔ correct answer
double rocker
The follower of the ______ linkage moves in an arc. - ✔✔ correct answer crank rocker
A ______ linkage changes rotary motion into reciprocating (back and forth) motion. - ✔✔ correct
answer slider crank
The crank rocker linkage is one type of ______ linkage. - ✔✔ correct answer four bar
A ____ is mounted on a shaft by means of a key. - ✔✔ correct answer cam