Mechanical Engineering

Question 1

What does a link do?

Answer 1

It connects two or more parts.

Question 2

What is guiding control?

Answer 2

It controls the motion of a moving part.

Question 3

What are the 3 different types of guiding control? Explain them.

Answer 3

1-Translational: Straight motion, (vertical, horizontal diagonal)
2-Rotational: Rotates
3-Helical: spin like a drill

Question 4

What is lubrication?

Answer 4

It removes friction.

Question 5

What’s sealing?

Answer 5

It prevents escape of a fluid.

Question 6

Why do we use support?

Answer 6

To give structure.

Question 7

What’s a direct link?

Answer 7

The parts are joined directly without another piece.

Question 8

What’s an indirect link?

Answer 8

Things are attached by using another piece.

Question 9

What’s a partial link?

Answer 9

If one part moves the other part it is linked to doesn’t have to

Question 10

What’s a complete link?

Answer 10

If one part moves, the other part moves.

Question 11

What’s a removable link?

Answer 11

Parts that can be removed without damaging it.

Question 12

What’s a fixed linked?

Answer 12

Parts cannot be removed without damaging it.

Question 13

What’s a rigid link?

Answer 13

The linking mechanism does not allow for movement between parts.

Question 14

What’s an elastic link?

Answer 14

Linking mechanism allows parts to change position and ensures that it will return back to its original position.

Question 15

What’s a mechanical function?

Answer 15

It’s the role by a mechanism inside a device/complex object.

Question 16

In a link, how many of the 8 properties does it have to have?

Answer 16

4

Question 17

What does motion transmission mean?

Answer 17

It’s when a system has the ability to transmit the same motion from one part of the object to another.

Question 18

Name the 3 mechanisms.

Answer 18

1-motor mechanism
2-intermediate
3-receiving mechanism

Question 19

What’s a motor mechanism?

Answer 19

It’s where force is applied.

Question 20

What’s an intermediate mechanism?

Answer 20

It’s what transfers the action of the motor mechanism(driving force) to the receiving mechanism.

Question 21

What’s a receiving mechanism?

Answer 21

It’s what receives a motion.

Question 22

The pedals of a bicycle represent the ________ mechanism on which force is applied.

Answer 22

Motor

Question 23

The chain of a bicycle is the _____________ mechanism that transfers the motion to the back wheel……..

Answer 23

Intermediate

Question 24

…..Intermediate mechanism that transfers the motion to the back wheel or the ____________ mechanism.

Answer 24

Receiving.

Question 25

How does a motion transmission system transfer motion from the motor mechanism to the receiving mechanism?

Answer 25

It transfers it without transforming it.

Question 26

Name 2 motion transmission systems.

Answer 26

1-Translational to translational

2-Rotational to rotational

Question 27

What are the 3 types of units/components in a mechanical system?

Answer 27

1-Driver
2-Driven
3-Intermediate unit

Question 28

When the driver is bigger than the driven gear, what happens to the speed?

Answer 28

It increases.

Question 29

When the driver is smaller than the driven gear, what happens to the speed?

Answer 29

It decreases.

Question 30

When the driver and the driven are the same size, what happens to the speed?

Answer 30

Nothing, it doesn’t change.

Question 31

What’s motion transformation?

Answer 31

Its doing a motion from one part to another that changes the nature of the motion.

Question 32

Give 2 examples of motion transformation.

Answer 32

1-Translational to rotational

2-Helical to translational