Advanced Manufacturing I Mechanisms Question Preview (ID: 24203)


Mechanisms Set 1. TEACHERS: click here for quick copy question ID numbers.

A wheel barrow is an example of which class of lever?
a) Second class
b) Fourth class
c) First class
d) Third class

Which best describes a third class lever?
a) Effort is applied between the fulcrum and the resistance
b) Resistance is located between the fulcrum and the effort force
c) None of these answers are correct
d) Fulcrum is located between the effort and resistance forces

Which best describes a second class lever?
a) Resistance is located between the fulcrum and the effort force
b) None of these answers are correct
c) Fulcrum is located between the effort and resistance forces.
d) Fulcrum is located on one end with the effort force located in the middle

Which best describes a first class lever?
a) Fulcrum is located between the effort and resistance forces.
b) Fulcrum is located on one end with the resistance force in the middle.
c) Fulcrum is located on one end with the effort force located in the middle
d) None of these answers are correct

A wedge is really a type of what other simple machine?
a) inclined plane
b) screw
c) pulley
d) lever

Which simple machine helps a person by moving an object with less force, but forces that person to move the object an increased distance?
a) inclined plane
b) lever
c) wedge
d) screw

A pulley system is made up of two pulleys and four sections of rope that are acting on the load. What is the mechanical advantage of such a pulley system?
a) 4
b) The mechanical advantage cannot be determined from this information alone.
c) 8
d) 2

Which of the following terms describes the distance between a screw's threads?
a) pitch
b) helix
c) radius
d) lead

What two dimensions of an inclined plane are needed to calculate its mechanical advantage?
a) rise and length
b) width and circumference
c) rise and angle
d) length and angle

Tweezers are an example of which class of lever?
a) third class
b) second class
c) fourth class
d) first class

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