Question 1

____________________ ratio (VR)is the relationship between the distance moved by the effort and load.

Accepted Answer

Velocity

Question 2

If the effort moves 7 m and the load moves 3 m,what is the velocity ratio of the lever?

Accepted Answer

VR = distance moved ...

Question 3

____ is a force applied over a distance that overcomes some resistance as noted in Newton's laws.

Accepted Answer

A)   Work
B)   Motion
C)   Momentum
D)   EnergyE) B) and C)
F) None of the above

Question 4

____________________ are toothed wheels fixed to an axle.

Accepted Answer

The answer of ____________________ are toothed wheels fixed to an...

Question 5

The Greek letter ____ is used to represent an angle measurement.

Accepted Answer

A)   alpha
B)   beta
C)   theta
D)   sigmaE) B) and C)
F) A) and B)

Question 6

In a pair of gears,if the output gear has 16 teeth and the input gear has 12 teeth,what is the gear ratio?

Accepted Answer

GR = number of drive...

Question 7

The ____________________ and slider mechanism is used to change between rotary and reciprocating motions.

Accepted Answer

The answer of The ____________________ and slider mechanism is used...

Question 8

The Watt steam engine was a machine (transformed energy) connected to a ____ (capable of designed movement) .

Accepted Answer

A)   fulcrum chain
B)   treadle
C)   mechanism
D)   coordinate systemE) None of the above
F) B) and C)

Question 9

A clock pendulum and the agitator of a top-loading washing machine move with a(n) ____ motion.

Accepted Answer

A)   linear
B)   reciprocal
C)   rotary
D)   oscillatingE) A) and C)
F) A) and B) D

Question 10

A ____ causes a body (mechanism) to accelerate (move) .

Accepted Answer

A)   fulcrum
B)   force
C)   kinematic chain
D)   coordinate systemE) B) and C)
F) A) and D)

Question 11

A(n)____________________ is a rigid body that is capable of transforming energy to provide a designed motion and force.

Accepted Answer

The answer of A(n)____________________ is a rigid body that is...

Question 12

If a lever requires an effort of 60 lbs.to move a load of 140 lbs. ,what is the mechanical advantage?

Accepted Answer

MA = Load/...

Question 13

When is a ratchet mechanism used?

Accepted Answer

When a mechanism must be designed to turn in only one direction,a ratchet mechanism is used.A ratchet mechanism can be used to prevent an axle from turning in the wrong direction.This is often desired when a load is being lifted,such as when an engine is being removed from a car.Without the ratchet,the engine could crash back into the car if the mechanic's hands slipped on the chain.Many different types of automobile jacks also use a ratchet mechanism to protect the operator.
A ratchet mechanism can also be used to convert linear motion to a rotary motion.In this design,the pawl is used to push against the teeth of the ratchet.The amount of rotary motion is determined by the amount the pawl is moved.

Question 14

A mechanical advantage greater than 1 (MA > 1)means that a gain in output force has been achieved by an increase in input motion.

Accepted Answer

A) True 
 B)False

Question 15

Kinetics studies the action of forces on bodies.

Accepted Answer

A) True 
 B)False

Question 16

The rack and pinion gear system changes a rotary input motion to a(n) ____ output motion.

Accepted Answer

A)   linear
B)   faster rotary
C)   oscillating
D)   reciprocalE) All of the above
F) A) and D)

Question 17

How are vectors related to the Cartesian coordinate system?

Accepted Answer

A vector is characterized as a number of...

Question 18

Plastic gears are stronger than metal gears,but they are more expensive.

Accepted Answer

A) True 
 B)False

Question 19

Reciprocal motion is back and forth rotational motion.

Accepted Answer

A) True 
 B)False

Question 20

The ____ cam,a circular disk with the axle placed off-center,gives a smooth,harmonic,linear output motion to the follower.

Accepted Answer

A)   pear-shaped
B)   eccentric
C)   roller
D)   twinE) None of the above
F) B) and C)

Exam 12: Designing Mechanical Systems

____________________ ratio (VR)is the relationship between the distance moved by the effort and load.

Correct Answer
verified
Velocity

If the effort moves 7 m and the load moves 3 m,what is the velocity ratio of the lever?

Correct Answer
verified
VR = distance moved ...
View Answer

____ is a force applied over a distance that overcomes some resistance as noted in Newton's laws.

Correct Answer
verified

____________________ are toothed wheels fixed to an axle.

Correct Answer
verified

The Greek letter ____ is used to represent an angle measurement.

Correct Answer
verified

In a pair of gears,if the output gear has 16 teeth and the input gear has 12 teeth,what is the gear ratio?

Correct Answer
verified
GR = number of drive...
View Answer

The ____________________ and slider mechanism is used to change between rotary and reciprocating motions.

Correct Answer
verified

The Watt steam engine was a machine (transformed energy) connected to a ____ (capable of designed movement) .

Correct Answer
verified

A clock pendulum and the agitator of a top-loading washing machine move with a(n) ____ motion.

Correct Answer
verified
D

A ____ causes a body (mechanism) to accelerate (move) .

Correct Answer
verified

A(n)____________________ is a rigid body that is capable of transforming energy to provide a designed motion and force.

Correct Answer
verified

If a lever requires an effort of 60 lbs.to move a load of 140 lbs. ,what is the mechanical advantage?

Correct Answer
verified
MA = Load/...
View Answer

When is a ratchet mechanism used?

A mechanical advantage greater than 1 (MA > 1)means that a gain in output force has been achieved by an increase in input motion.

Correct Answer
verified

Kinetics studies the action of forces on bodies.

Correct Answer
verified

The rack and pinion gear system changes a rotary input motion to a(n) ____ output motion.

Correct Answer
verified

How are vectors related to the Cartesian coordinate system?

Correct Answer
verified
A vector is characterized as a number of...
View Answer

Plastic gears are stronger than metal gears,but they are more expensive.

Correct Answer
verified

Reciprocal motion is back and forth rotational motion.

Correct Answer
verified

The ____ cam,a circular disk with the axle placed off-center,gives a smooth,harmonic,linear output motion to the follower.

Correct Answer
verified

Exam 12: Designing Mechanical Systems

____________________ ratio (VR)is the relationship between the distance moved by the effort and load.

Correct AnswerverifiedVelocity

If the effort moves 7 m and the load moves 3 m,what is the velocity ratio of the lever?

Correct AnswerverifiedVR = distance moved ...View AnswerShow Answer

____ is a force applied over a distance that overcomes some resistance as noted in Newton's laws.

Correct AnswerverifiedShow Answer

____________________ are toothed wheels fixed to an axle.

Correct AnswerverifiedShow Answer

The Greek letter ____ is used to represent an angle measurement.

Correct AnswerverifiedShow Answer

In a pair of gears,if the output gear has 16 teeth and the input gear has 12 teeth,what is the gear ratio?

Correct AnswerverifiedGR = number of drive...View AnswerShow Answer

The ____________________ and slider mechanism is used to change between rotary and reciprocating motions.

Correct AnswerverifiedShow Answer

The Watt steam engine was a machine (transformed energy) connected to a ____ (capable of designed movement) .

Correct AnswerverifiedShow Answer

A clock pendulum and the agitator of a top-loading washing machine move with a(n) ____ motion.

Correct AnswerverifiedD

A ____ causes a body (mechanism) to accelerate (move) .

Correct AnswerverifiedShow Answer

A(n)____________________ is a rigid body that is capable of transforming energy to provide a designed motion and force.

Correct AnswerverifiedShow Answer

If a lever requires an effort of 60 lbs.to move a load of 140 lbs. ,what is the mechanical advantage?

Correct AnswerverifiedMA = Load/...View AnswerShow Answer

When is a ratchet mechanism used?

A mechanical advantage greater than 1 (MA > 1)means that a gain in output force has been achieved by an increase in input motion.

Correct AnswerverifiedShow Answer

Kinetics studies the action of forces on bodies.

Correct AnswerverifiedShow Answer

The rack and pinion gear system changes a rotary input motion to a(n) ____ output motion.

Correct AnswerverifiedShow Answer

How are vectors related to the Cartesian coordinate system?

Correct AnswerverifiedA vector is characterized as a number of...View AnswerShow Answer

Plastic gears are stronger than metal gears,but they are more expensive.

Correct AnswerverifiedShow Answer

Reciprocal motion is back and forth rotational motion.

Correct AnswerverifiedShow Answer

The ____ cam,a circular disk with the axle placed off-center,gives a smooth,harmonic,linear output motion to the follower.

Correct AnswerverifiedShow Answer

Correct Answer
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Velocity

Correct Answer
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VR = distance moved ...
View Answer

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GR = number of drive...
View Answer

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D

Correct Answer
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MA = Load/...
View Answer

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A vector is characterized as a number of...
View Answer

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