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Red Seal Prep > SAIT IP REVIEW > Flashcards

SAIT IP REVIEW Flashcards

1
Q

The basic purpose of a bearing is:

A

To support moving shafts and ways

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2
Q

Compared to the hardness of shaft journals, plain bearing hardness should be more, or less?

A

Less

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3
Q

Plain journal bearings help;

A

maintain shaft alignment

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4
Q

Compared to anti friction bearings, plain journal bearings….

A

require less radial space

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5
Q

The lubricant groove of plain journal bearing should be located in the area of;

A

least pressure

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6
Q

A plain journal bearing material does not need;

A

high hardness

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7
Q

The characteristics ability of a plain journal bearing material to absorb dirt or other particles is referred to as its;

A

Embeddability

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8
Q

What do you look for when determining if a bearing should be repaired or replaced?

A

-Embedded Particles
-Improper Clearances
-Journal Damage

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9
Q

In a standard anti-friction bearing, you will not find;

A

Internal lubricant grooves

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10
Q

The AFBMA basic number for each standard anti-friction bearing includes information about its;

A

Dimension Series
Bore Size
Type and Construction

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11
Q

Fatigue failure of a bearing starts as;

A

Flaking

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12
Q

In a fixed and floating two bearing mounting, what load is the fixed bearing intended to carry;

A

Thrust

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13
Q

To prevent creeping or spinning of the inner ring, use a;

A

Tapered adapter sleeve

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14
Q

What type of ball bearing most efficiently resists loads from any direction?

A

Double Row Angular Contact bearing

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15
Q

What type of roller bearing is designed to carry combined radial and thrust loads?

A

Tapered Roller bearing

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16
Q

What bearing can adjust to misalignment without loss in its load carrying capacity?

A

Spherical Roller Bearing

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17
Q

The major function of a seal is to;

A

retain the lubricant

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18
Q

Materials used to construct sealing elements include;

A

Felt, Leather, Synthetic Materials

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19
Q

To ensure long service life of synthetic seals the shaft should be;

A

slightly rough

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20
Q

Internal wear in a bearing may be detected in drained oil by the presence of;

A

Metal particles

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21
Q

When ball or roller bearings are installed slightly out of line, they will;

A

Fail Sooner

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22
Q

Shock load on a bearing will result in the bearing becoming;

A

Brinelled

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23
Q

Measuring a screw thread from crest to crest would include;

A

Pitch

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24
Q

A bolt described as a 1/2-13 UNC 3A would have a;

A

Tight (what the fuck is that)

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25
Q

A surface becomes worn by;

A

Friction

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26
Q

A box end of a combination wrench is classified as a __________ wrench.

A

Enclosed End

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27
Q

A hacksaw blade with large teeth should be used for cutting;

A

Shafting

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28
Q

To cut threads in a through hole in heavy plate, you would use;

A

Taper and Tap plugs

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29
Q

What safety precautions should be followed when using a portable magnetic drill?

A

Chain the drill if in the vertical position

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30
Q

After starting a bench grinder, they can be used;

A

After they come up to full speed

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31
Q

Which of the following dimensions shows a bilateral tolerance? +.004

a: .750, +.004, .000
b: .750, -.003, +.002
c: .750, -.000, +.002
d: .750, -.001

A

B; .750, -.003, +.002

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32
Q

If you machine a shaft to 1.500, +.000, -.004 and a sleeve to 1.502, +.001, -.001 the resulting fit would be;

A

Clearance

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33
Q

If you have to turn a shaft to a diameter given on the shop drawing as 1.125, +.003, -.003 then the tolerance would be?

A

.006

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34
Q

A vernier height gauge with attachments may be used for;

A

Measuring heights
Measuring depths
Layout work

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35
Q

What tool can be used as an outside caliper?

A

Hermaphrodite Caliper

36
Q

The centre head is used for?

A

locate centres on shafts

37
Q

An imperial micrometer spindle has ______ threads per inch?

A

40

38
Q

An imperial vernier micrometer measures to an accuracy of?

A

.0001

39
Q

One revolution on a micrometer thimble equals;

A

.025

40
Q

Thimble of a metric micrometer is divided into ________ parts?

A

50

41
Q

A micrometer measures to an accuracy of;

A

.0010

42
Q

The range of a 2” outside micrometer is from;

A

1-2”

43
Q

Layout is a term applied to the;

A

Transfer of the lines to the metal being worked on

44
Q

The tool that can be used to scribe lines approximately in the centre of a workpiece is the;

A

Hermaphrodite Caliper

45
Q

Double cut files are files that;

A

Are used for roughing

46
Q

The purpose of draw filing is to;

A

produce a smooth and flat surface

47
Q

A hacksaw blade for general purpose work should have ___________ teeth per inch.

A

18

48
Q

A hand hacksaw blade for sawing thin wall tubing should have a pitch of _________ teeth per inch.

A

32

49
Q

The average speed for hand hacksawing should be ____ strokes per minute.

A

45-50 strokes

50
Q

The split die is used to;

A

obtain different fits on external threads

51
Q

A hand reamer must be turned;

A

forward only

52
Q

A wrench used to tighten finished shafts with no marks is the:

A

Strap

53
Q

Shims used with babbit bearings are for;

A

obtaining the clearances

54
Q

A gib style bearing joint in a pillow block gives _______ loading areas.

A

360 degrees

55
Q

A 6 x 19 wire rope has;

A

6 strands and 19 wires per strand

56
Q

Wedge sockets are preferred over permanent sockets on wire rope where;

A

The main line is changed frequently

57
Q

What is the most favourable feature of flexible graphite gasket or packing material?

A

High Temperature Range

58
Q

What conditions or loads must a gasket resist?

A
  • bolt load
    -pressure from within
    -temperature
59
Q

The finest reading on a vernier caliper is;

A

.0010

60
Q

The tools used to measure or layout angles are;

A

Combination set, Bevel protractor

61
Q

When measuring work still hot from machining you should;

A

Cool the work to room temperature

62
Q

A device to take up the slack in cables is a;

A

Turnbuckle

63
Q

When grinding a carbon steel tool, care must be taken not to;

A

lose the hardness of the piece

64
Q

The countersink is used to enlarge the end of a hole to a shape like a;

A

Cone

65
Q

A safety factor of new rope is;

A

5:1- this means the wire rope can withstand 5 times their safe work load.
Safety factor is a measurement of how strong of a force a wire rope can withstand before it breaks.

66
Q

The maximum height of a portable step ladder is _____ feet.

A

20 feet

67
Q

A snatch block can be made of ________, _________, or _________. And opened for __________.

A

A snatch block can be made of wood, metal, or plastic. And opened for threading.

68
Q

Soft jaws are sometimes put in a vice to __________ the workpiece.

A

protect

69
Q

Knurling the surface of a workpiece will;

A

Increase its diameter

70
Q

The three main parts of a lathe carriage are;

A

Apron, Saddle, and Cross Slide

71
Q

What operation should not be performed on a workpiece held between centres on a lathe?

A

Parting off

72
Q

When turning work in a lathe the job tapers smaller on the headstock end you will;

A

Adjust tailstock towards you

73
Q

The gasket that does not have bolt holes is the;

A

Full Face

74
Q

The foundation of machine subject to critical alignment is poured with the concrete level and a minus elevation of;

A

3/4” to 1 1/2”

75
Q

Metals used for babbit are;

A

Tin, Copper, Lead, Antimony

76
Q

When drilling a 2 1/2” shaft in a lathe with a 1/2” drill bit how fast will the lathe be set to run?
(material cutting speed is 300)

A

2400rpm

77
Q

Drilling may be defined as;

A

removing metal from a solid mass

78
Q

The machine reamer that cuts only at the chamfered end is called;

A

rose reamer

79
Q

Which of the following is NOT a ferrous metal?
Cast Iron, Alloy Steel, Aluminium Bronze, Low carbon steel

A

Aluminium Bronze

80
Q

Single, Double, or Triple blocks designate the number of?

A

Sheaves

81
Q

The temper colours tell you;

A

The temperature of the metal

82
Q

Before babbitt is poured, all metal components should be;

A

Pre-heated

83
Q

Scraping is used primarily to;

A

Increase the area of contact

84
Q

What material is often used for tinning bronze shells?

A

Solder

85
Q

The amount left in a hole to be reamed 3/4” is;

A

1/32

86
Q

A countersink is used to enlarge the top of hole to accommodate ________ screws

A

Flat head

Red Seal Prep (2 decks)

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