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4th 6 Months > Tpc 101 reading blueprints > Flashcards

Tpc 101 reading blueprints Flashcards

1
Q

How can you determine the size of a blueprint?

A

There is a section that gives a letter designation for the overall size of the sheet on which the drawing has been made

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2
Q

How can you tell when a blueprint was originally drafted?

A

On the approvals block, sometimes referred to as the sign off block, this area provides a space for the signatures or initials of the person(s) involved in drafting, checking, and approving the drawing

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3
Q

How can find the desirable tolerance of a piece on a schematic?

A

A special space is provided in every detail-drawing title block to key the most desirable tolerance to each specific dimension

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4
Q

How do you draw a centerline?

A

By drawing a line followed by a short dash

— - — - — -

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5
Q

A section drawing allows us to see how the piece would look if part of it were cut away, what do the slanted cross-hatch lines show?

A

The cut surfaces

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6
Q

What is a continuous lever with equal arms?

A

A pulley

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7
Q

When discussing a thread specification the letter A following the class specifies an external thread, the letter B specifies?

A

An internal thread

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8
Q

When discussing thread specification Class 1 fit is the loosest and Class 3 is the tightest. What does RH and LH designate?

A

RH is right hand and LH is left hand, RH is usually omitted since it is usually the given thread style

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9
Q

The joint symbol appears above or below the arrow to show which which side of the joint is to be welded. If the symbol is above the arrow what side should the weld be on?

A

The part should be welded on the other side

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10
Q

Belts used with sheaves are usually what shape?

A

V-shaped

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11
Q

The compound rest is often simply called the “compound”. This mechanism is located on the saddle of the lathe and serves as a?

A

Base for mounting the tool holder on the Lathe

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12
Q

An exploded view shows all the parts in the mechanism, but?

A

It shows them separated from one another

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13
Q

What are the two major parts in a compound rest?

A

The lower part is a rest swivel and the upper part is a rest top

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14
Q

An orthographic projection shows how many dimensions?

A

Two dimensions

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15
Q

Why would the drafter draw the gear shafts as though they were all positioned in a single plane

A

To avoid confusion

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16
Q

What does a Cross section of a supply duct look like?

A
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17
Q

If a duct dimensions are given as “12x20” how wide is the duct?

A

12 inches

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18
Q

What directs the air and spreads it evenly into the space , as well as hides and protects the open end of the duct?

A

A diffuser

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19
Q

A method of developing a cone , a pyramid or any other shape that has a constant taper is called?

A

Radial development

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20
Q

What is the symbol for a fire brick on a blueprint?

A
21
Q

Most plat give bearings in terms of (what direction) and (what distance)?

A

Magnetic north, feet

22
Q

Which layout gives the arrangement of pieces of machinery and equipment?

A

Floor plan layouts

23
Q

Structural drawings give information on framework , floors and?

A

Foundations of the plant

24
Q

Flow diagrams can be what type of drawing?

A

Elevation drawings

25
Q

Pascals law states that any fluid, liquid or gas, the pressure at any point acts how?

A

Equally in all directions

26
Q

If equal force is applied to both the cap end side and rod end side which side will have the total greater force acting on it?

A

Cap side , bc there is more surface area

27
Q

What piece of equipment regulates pressure and doesn’t allow it to raise to high or drop to low?

A

Accumulator

28
Q

What is the symbol for a reservoir

A
29
Q

What is the symbol for lines crossing?

A
30
Q

What way are iron pipes connected?

A

Screwed/threaded

31
Q

Why do you use a taper connection

A

To make it tighter, stronger

32
Q

Where are flanged connections used at?

A

Large diameter industrial piping that Carries fluid under pressure or at high temperatures

33
Q

Describe a single line drawing?

A

It does not look very realistic, it uses many symbols to show fittings and the sizes of parts

34
Q

When two different metals make electrical contact what can happen?

A

A galvanic reaction

35
Q
A
36
Q

Current is measured in?

A

Amperes

37
Q

The metal that has wire wrapped around it is called the?

A

Core

38
Q

What does a circuit diagram show?

A

The loads served be each circuit. it does not indicate the physical location of any load or circuit

39
Q

What does a plot plan show?

A

Electrical distribution to all the plant buildings

40
Q

In an A/C system if the fluid changes back and forth between gas and liquid what is it called?

A

Refrigerant

41
Q

What does an expansion valve do?

A

This valve holds the refrigerant on one side at a higher pressure than on the other side. It opens automatically to allow some of the liquid to flow to the low pressure side.

42
Q

What system uses water as an intermediate material in cooling the air?

A

An indirect system

43
Q

Pneumatic controls operate on what kind of pressured air?

A

Low pressure

44
Q

Refrigerant piping drawings are usually what kind of drawing?

A

Single-line drawings

45
Q

A good sketch is one that?

A

Communicates clearly

46
Q

What does a pictorial sketch show?

A

It shows an object in three dimensions

47
Q

An isometric drawing makes objects that are further back in real life larger in the drawings?

A

True

48
Q

Parts farther from the front appear smaller than parts near the front, this kind of view is called?

A

Perspective

49
Q

In reality parallel lines?

A

Never meet

4th 6 Months (7 decks)

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