Sketches, Drawing and Prints and Limits, Fits and Tolerances

Question 1

What are the three (3) types of pictorial drawing?

Answer 1

• Perspective
• Oblique
• Isometric

Question 2

On what is allowance based on?

Answer 2

MMC- maximum metal condition

Question 3

Most orthographic drawings show only the?

Answer 3

• Front
• Top
• and Right side view

Question 4

What does ISO stand for?

Answer 4

International Organization for Standardization

Question 5

The revision block should include?

Answer 5

• A revision Number
• A Description
• A Date
• Who made the changes

Question 6

An object or visible line is shown as?

Answer 6

Thick Dark Lines

Question 7

What is CW means?

Answer 7

Clock-Wise

Question 8

What is a Revision?

Answer 8

is a change or correction on the original drawing

Question 9

What does CCW stand for?

Answer 9

Counter Clock Wise

Question 10

How can an (S) shape be distinguished from a (W) shape?

Answer 10

By the Flange Shape

Question 11

What are the two shapes that have tapered flanges?

Answer 11

“C” and “S” shapes

Question 12

What is the purpose of a Section Drawing?

Answer 12

it allows you to see inside a work piece

Question 13

The two types of orthographic projection drawings are?

Answer 13

• First Angle

* Third Angle

Question 14

What angle of view is the method widely used to draw an orthographic projection print?

Answer 14

Third Angle

Question 15

Third Angle orthographic projection can be shown by what is called?

Answer 15

A Glass box theory

Question 16

The typical sectional views are?

Answer 16

• Full section
• Half section
• Removed section
• Revolved section
• Broken-out section
• Offset section
• Aligned section

Question 17

The intentional difference between mating parts at MMC?

Answer 17

is allowance

Question 18

What are the three types of fits?

Answer 18

• Clearance fit
• Interference fit
• Transition fit

Question 19

The variation size of two mating parts from the basic size to the total amount of this permitted variation is called?

Answer 19

Tolerance

Question 20

The kind of tolerance, where the variation is one direction only is called?

Answer 20

Unilateral tolerance

Question 21

The type of tolerance with variation in size that can be in either direction from the basic size is called?

Answer 21

Bilateral tolerance

Question 22

When the shaft will always fit into the mating hole at MMC?

Answer 22

Clearance fit

Question 23

When the shaft diameter is larger than the mating hole diameter?

Answer 23

Interference fit

Question 24

When the mating parts may have some clearance or some interference when assembled is called?

Answer 24

Transition fit

Question 25

HRMS

Answer 25

Hot Rolled Mild Steel

Question 26

SS

Answer 26

Stainless Steel

Question 27

MS

Answer 27

Mild Steel

Question 28

MST

Answer 28

Machine Steel

Question 29

AISI

Answer 29

American Iron and Steel Institute

Question 30

ANSI

Answer 30

American National Standards Institute

Question 31

CSA

Answer 31

Canadian Standard Association

Question 32

SAE

Answer 32

Society of Automotive Engineers

Question 33

SI

Answer 33

System International

Question 34

ASSY

Answer 34

Assembly

Question 35

BC

Answer 35

Bolt Circle

Question 36

BCD

Answer 36

Bolt Circle Diameter

Question 37

BHC

Answer 37

Bold Hole Circle

Question 38

CLA

Answer 38

Centre Line Angle

Question 39

TYP

Answer 39

Typical

Question 40

SF

Answer 40

Spotface

Question 41

SPEC

Answer 41

Specified

Question 42

SQ

Answer 42

Square

Question 43

SYM

Answer 43

Symmetrical

Question 44

TPF

Answer 44

Taper Per Foot

Question 45

TPI

Answer 45

Taper Per Inch

Question 46

TR

Answer 46

Taper Ratio

Question 47

The arrows on the ends of cutting planes lines are used to?

Answer 47

Show direction to view the sections

Question 48

Which two (2) sectional view never require a cutting plane line?

Answer 48

* Broken out | * Removed

Question 49

The six different planes you can draw to view an object are?

Answer 49

* Front * Right side * Left side * Top (plane) * Bottom * Rear

Question 50

A centre line is shown as?

Answer 50

A series of long dashes, separated by short dashes

Question 51

What is the plane projection on which the front view is projected?

Answer 51

Front Plane

Question 52

What do break lines do?

Answer 52

Break lines allow long symmetrical shapes to be drawn in less space so that the drawing can be drawn to a larger scale for clarity.

Question 53

What is considered to be the key view in all cases of an orthographic projection?

Answer 53

Front View

Question 54

What is the plane projection at which the top view is projected?

Answer 54

On the horizontal plane

Question 55

When is not necessary to specify the angle of a chamfer?

Answer 55

when the chamfer is external and has an angle of 45 degrees

Question 56

What material section line is used for majority of parts?

Answer 56

Cast Iron

Question 57

Why is the isometric type of drawing preferred for the mechanical trades?

Answer 57

because it allows you to measure all dimensions parallel to the three (3) axis and offers less distortion to round objects

Question 58

A Leader Line terminates with?

Answer 58

* Arrows * Dots * Squiggle

Question 59

Name three (3) of the elements you can use to define a taper

Answer 59

* Large Diameter * Small Diameter * Length of Taper

Question 60

The range of fits created between the maximum and the minimum dimensions of mating parts is?

Answer 60

The Fit Codes

Question 61

What are the factors that affect the signs, and tolerances of mating parts?

Answer 61

* Load * Temperature * Lubrication * Metal Type

Question 62

What are the Break Lines?

Answer 62

* Short Break Line * Long Break Line * Solid Shaft Break Line * Hollow Shaft Break Line

Question 63

The external radius is called?

Answer 63

A Round

Question 64

The internal radius is called?

Answer 64

Fillet