Exam Flashcards

1
Q

How man Oz in a pint
How many pint in quart
How many quart in a gallon

A

20oz in 1 pint
2pt in a quart
4qt in a Gallon (Gal)

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2
Q

How many feet in a yard
How many yards in a mile
How many miles is 1 nautical mile

A

3 feet in a yard
1760 yards in a mile
1.15 miles in a nautical mile

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3
Q

Name the 5 groups of calipers

A

Outside
Inside
Odd leg
Spring dividers
Trammel

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4
Q

Name the 4 squares and their uses

A

Engineers (general use)

Precision (milling or lathe)

Cylindrical (checking accuracy of other measuring and testing equipment like squares)

Master (kept in lab and not used in workshop)

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5
Q

What are the uses of a combination set

A

 Rule.
 Straight edge.
 90° square.
 45° bevel.
 Depth gauge.
 Height gauge.
 Checking verticals.
 Checking horizontals.
 Measuring angles.
 Angles to the horizon.
 Find centre of round object.

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6
Q

What is a bevel gauge

A

The bevel can be used to duplicate an existing angle, or set to desired angle by
using it with any number of measuring tools (such as a protractor, combination
square).

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7
Q

What is a clinometer

A

Device that measures slope of a surface relative to the horizontal. Common in flight control settings

Pendulum angle thing

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8
Q

What are the 2 scales of vernier calipers

A

Main and vernier scale

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9
Q

How accurate are vernier calipers?
Metric and imperial

A

Reads down to 0.02mm and 0.001”

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10
Q

What are the principle parts of a micrometer

A

Frame

Anvil (metal part that doesn’t move)

Spindle (metal part that moves)

Sleeve or barrel (part with numbers on it)

Thimble (thing you spin)

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11
Q

What are I side micrometers used for

A

Inside diameters and holes

Distances between internal parallel surfaces

Other inside dimensions

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12
Q

What do tube micrometers measure

A

The thickness of tubes or machined rounds

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13
Q

What’s the starting reading of an inside micrometer
Metric and imperial

A

50mm and 2 inches

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14
Q

How can the range of a depth micrometer be increased?

A

Using interchangeable extention rods

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15
Q

What are bored gauges

A

Allow for measurement of Internal bores in components or material. Used to measure very small range of dimensions and are used to compare measurements taken

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16
Q

What are telescopic and small hole guages

A

Comparator tool used to measure inner surfaces. Then used with a micrometer to get an accurate measurement of dimention

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17
Q

What are the different types of limit guages

A

Plug
Ring
Snap/caliper

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18
Q

What are the different types of comparator gauges

A

Screw pitch/ thread
Feeler
Radius
Wire

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19
Q

What are the 3 grades of a gauge block

A

AA (laboratory)
A+ (inspection)
B (shop)

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20
Q

How are surface plates made

A

Fine grained cast iron that is machined flat on upper surface and then finished to close limits by hand scrapping

The underside is heavily ribbed to prevent distortion and reduce deflection

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21
Q

What is more accurate, a surface gauge or a scribing block

A

Surface gauge is more accurate. Has knurled screw for fine adjustments

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22
Q

How are files classified

A

Type of cut and grade of cut
Shape (profile)
Length (dimenions)

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23
Q

What are the 4 types of files cuts

A

Single
Double
Dreadnaught
Rasp

24
Q

What are the grades of cuts of a file
(All 6 from roughest to smoothest)

A

Rough with 10 to 15 teeth per inch.

Middle Cut with 15 to 20 teeth per inch.

Bastard with 20 to 30 teeth per inch.

Second Cut with 30 to 40 teeth per inch.

Smooth with 50 to 60 teeth per inch.

Dead Smooth with 80 to 120 teeth per inch

25
Q

What are the common types of double Cut files

A

Flat
Hand
Warding
Three square
Half round

26
Q

Difference between hand and flat file

A

Flat has taped end and has single cut on both edges

Hand is flat (not tapered) and has 1 safe edge with no cuts

27
Q

What is used to clean a file

A

File card (scratch card)

28
Q

What are the 3 hacksaws

A

Hand (normal)
Spring bow (junior)
Pad saw (sawing in awkward positions)

29
Q

What 2 metals are used for hacksaws

A

Low alloy steel
High speed steel

30
Q

What do the colours of the hacksaw blades mean?

A

BLUE - All Hard high speed steel blade. Best cutting blade, but tends to
shatter if abused in any way.
 ORANGE - Bi metallic high speed steel blade. Has cutting ability of a blue
blade but virtually unbreakable in use.
 RED - Flexible high speed steel blade. Softer than a blue blade so it tends
to wear out quicker, but is more difficult to break.
 SILVER - Low Alloy steel blade. Impractical to use on steels because it
wears out so quickly, so is generally used on softer materials such as
plastics etc

31
Q

What are the 3 hacksaw sets

A

Raker (middle peice straight every 3rd)

Alternate (angle)

Wave

32
Q

If material is the only consideration, what type of blade should you use for soft and hard materials

A

Soft - lower TPI to give adequate chip clearance which prevents clogging

Hard - higher TPI to give sufficient cutting points in contact with work

33
Q

What are the 3 main parts of a drill

A

Point(cutting edge)
Body(between point and shank)
Shank(portion that fits into chuck or socket

34
Q

What is the lip angle, heel angle and lip clearance

A

Lip - 59⁰ x2 (or 118⁰)
Heel - 12⁰-15⁰
Lip clearance (125⁰-135⁰)

35
Q

Does the chisel edge of a drill cut the material?

A

No, it forces its way through, the cutting edges cut the material

36
Q

What is used to remove a tapered Shank from a tapered socket?

A

Morse tapered drift to remove from spindle

37
Q

Using a micrometer, where would you measure a NEW drill piece? And where would you measure an old drill piece?

A

New - as close as possible to the point

Old - across body close to the end of the flutes

38
Q

What are the 6 different types of reamers

A

Hand
Machine
Straight or parallel
Tapered
Adjustable
Expandable

39
Q

When using a reamer, how can chatter be reduced?

A

Odd number of flutes

40
Q

What way should you turn a right handed reamer and what way should you turn a left handed reamer?

A

Both should be turned to the right (clockwise)

41
Q

What is the difference between left and right handed reamers

A

Left - best suited for most work, helix resists feed of reamer for a better feel (more desirable)

Right - feeds into work and advances quicker. Can cause cutting edges to take more of a cut than they can stand

42
Q

What is the screw angle of most screws and what is the angle of the other one

A

60⁰ for most screws except Whitworth as they are 55⁰

43
Q

.
What is the order of threads used to make an internal thread

A

Taper tap to start the thread

Intermediate tap to follow the holes that are not completed by the taper tap

Bottoming tap (plug tap) to complete thread

44
Q

What are the 3 types of dies?

A

Button die (split in one side)

Two piece die (adjustable)

Die nut (used for fixing threads, not cutting)

45
Q

What does double installation mean?

A

The international symbol for double insulation is a square within a square. This
symbol is shown above. An appliance labelled with this symbol has additional
insulation between any exposed metal parts and the insulation of the currentcarrying parts, hence the term “double insulation”

46
Q

What’s the difference between milling machine and drill press

A

Milling machine has the drill stationary and the piece moves where as drill press the piece is stationary and drill moves down onto it

47
Q

What is the maximum clearance between grinder and work rest

A

2mm

48
Q

What is glazing?

A

When the wheel abrasive particles becomes dull from being used on too hard a surface with strong bonds

49
Q

What is a prick punch angle and a centre punch angle

A

Prick (60⁰)
Centre (90⁰)

50
Q

What is a drift

A

Used with a hammer to localise a blow to an object without damaging the object

51
Q

What is a starter (taper) punch and a pin punch?

A

A starter punch is used first to start/jar loose taper, parallel pins and rivets

Pin punches is a Cylindrical punch used to drive previously loosened locating or locking pins, dowels and rivets put of their holes

52
Q

What are the different types of headset of a screwdriver

A

Slotted
Cross slot/ Phillips
Pozidriv (Phillip with star)
Tri wing
Torx

53
Q

What are the different types of pliers

A

Circlip pliers - used to remove circlips

Combination pliers - standard engineer pliers

Diagonal cutting (side cutters) - making flush cuts on smaller things, not for holding

Long nose - reach far places

Duck bill - bend ligh sheet metal

Water pump/ slip jaw - powerful grip and can adjust several different sizes

Safety wire - aviation,used for wires

Self grip/ lock grip/ vice grip - locks

54
Q

What is a spanner called with 2 open ends?

A

Double open end spanner

55
Q

What is a spanner called with 1 side open and 1 side a ring

A

Ring open end spanner

56
Q

What is a flair nut spanner

A

Similar to an open ended spanner but used with flair nuts. Ribbed inside