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Millwright > Installation, Maintenance, Alignment And Tools > Flashcards

Installation, Maintenance, Alignment And Tools Flashcards

1
Q

Metallic packing is used in the stuffing Box due to?

A

In a high temperature application

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2
Q

Why is a lapping plate softer than the material you are lapping?

A

It allows the compound to be embedded in the plate to assist in the lapping process

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3
Q

An electric drill being used in a damp location requires what?

A

A GFCI breaker to be used

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4
Q

During setup, a dial indicator is used with what?

A

Surface plate

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5
Q

How does a labyrinth seal stop leakage?

A

By design

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6
Q

What type of steel should be used for cutting tools?

A

Tool steel

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7
Q

You need to shim a pump. You determine that it requires a 1/64”, 1/8”, 3/64”, 5/32” and 1/2” shim. What is the total shim thickness?

A

27/32” ( .84375)

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8
Q

What is the best method of sharpening a scribing tool?

A

Honing

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9
Q

Upon catastrophic failure, what type of maintenance is performed?

A

Reactive

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10
Q

When must a plan maintenance program schedule be overlooked?

A

Whenever there is a safety concern

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11
Q

When tempering a hand tool, what cools the tool quickest?

A

Water

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12
Q

If you use a drill with a fixed rate of speed and it is turning too slowly, what will happen?

A

Drill bit will break

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13
Q

How do you best communicate with other trades?

A

Repeat info back to confirm

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14
Q

Who generates work orders?

A

A supervisor

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15
Q

What type of maintenance uses technical reports to determine a schedule?

A

Preventative

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16
Q

What is important to remember when mounting a pump and motor?

A

The temperature of liquid being pumped

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17
Q

If a plunger is out .012” after rotating 180ﾟ, how much should you shim it?

A

.006”

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18
Q

If a micrometer is inaccurate, what should you do?

A

Reset sleeve

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19
Q

How do you connect to length of pipe if you want to disassemble them later?

A

Union

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20
Q

What is used for accurate angle measurement?

A

Gauge block and sine bar

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21
Q

When installing machine, what is the primary condition to address?

A

Referent lines

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22
Q

What type of misalignment is to be checked 1st?

A

Angular

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23
Q

How long does it take for concrete to achieve working strength?

A

28 days

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24
Q

What is the number of threads per inch of a standard micrometer spindle?

A

40

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25
Q

The markings on the sleeve of a standard micrometer are in increments of what?

A

.025”

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26
Q

What does a Rockwell hardness tester check?

A

Penetration

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27
Q

How do you remove a hand reamer?

A

Continue rotating in the same direction and withdraw

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28
Q

A Vernier caliper measures to an accuracy of what?

A

.001”

29
Q

When drilling mild steel, the normal included angle of a drill bit is what?

A

118°

30
Q

You are using a 18” level and the machine is 6’ long. After placing the level on the machine, you must shim the level .05” to make the bubble center on the level. What is the shim requirements for the machine to be level?

A

.200”

31
Q

A coupling touches the mating coupling at 12:00 only during pre-setup. What must be done to correct this?

A

Add schims to the front of the motor

32
Q

A tank is found to be not level. After jacking the tank up to level it out, what would you do next?

A

Shim

33
Q

A steel shaft is in a 68ﾟF room. The shaft is 10’ long. After being taken to the shop floor which is 70ﾟ. What is the length of the shaft?

A

120.0000126”

34
Q

What is the recommended amount of material to leave prior to hand-reaming an 11/16” hole?

A

.001” to .005”

35
Q

The primary function of glow plugs on a diesel engine is to what?

A

Pre-heat the combustion of the chamber for starting

36
Q

What color is a groundwire in an extension cord?

A

Green

37
Q

What is the best method of alignment?

A

Rim and face

38
Q

What condition determines the angle included of a drill bit?

A

The material you are drilling

39
Q

What is soft foot?

A

When supporting footing do not equally support the load

40
Q

Where is the lantern ring located in a stuffing Box?

A

In line with the lubricant entry hole

41
Q

What type of impeller should be used with acid?

A

Stainless steel

42
Q

Amplitude, frequency, critical speed and harmonic or what?

A

Balancing terms

43
Q

What is a soul plate?

A

A single machine not mounted on a common plate.

44
Q

What is a dynamic seal?

A

A seal between a rotating and stationary surface

45
Q

What type of blade should be used when cutting carbon steel with a band saw?

A

Regular Straight tooth 6-10 TPI

46
Q

What is the range of included angle of a counter sink punch?

A

80 - 82 degrees

47
Q

If material is subject to various types of stress this is called what?

A

Fatigue loading

48
Q

What is the total thickness of the following shims 1/2”, 3/16”, 5/16”, 1/4”, 1/8” and 7/16”?

A

1 13/16”

49
Q

What valve would you open last when starting a centrifugal pump in a flooded application?

A

Outlet

50
Q

How do you check a gearbox tooth clearance?

A

Blueing

51
Q

If you notice an idler roller wasn’t touching a conveyor, what would be the reason?

A

Wasn’t installed properly

52
Q

What is a lantern ring and where is it installed?

A

Concave ring installed below the grease fitting to allow grease access to cool the shaft.

53
Q

You are installing a pump and piping. What would you do 1st?

A

Bolt down the pump

54
Q

How do you check for electrical continuity?

A

Ohm meter

55
Q

What would you do before changing bearings in the diesel motor?

A

Remove all battery leads

56
Q

A Crescent seal pump has what kind of gear set up?

A

An internal gear with male teeth, and an external gear with female teeth containing more teeth than the male gear.

57
Q

How are packing joints staggered on a stuffing Box?

A

90ﾟ to the previous ring

58
Q

A gear is sloppy on a shaft. You have no spare parts. What do you do?

A

Weld the gear to the shaft

59
Q

Prior to starting a steam turbine, you should do what?

A

Check lubrication levels

60
Q

What type of gear transmits rotational motion into linear motion?

A

Rack and pinion

61
Q

What type of gear eliminates thrust in both directions?

A

Herringbone

62
Q

Where is lantern ring located in a stuffing Box?

A

Beneath the threaded opening

63
Q

Type of gear will be used in a differential to connect a drive shaft to a rear axle?

A

Hypoid

64
Q

What type of plank should be used for scaffolding?

A

Fir

65
Q

What do you add to make 2 gears run in the same direction?

A

Idler gear

66
Q

When pump frequency = motor frequency you have what?

A

Operating speed

67
Q

When pass information is used to determine a maintenance schedule, this type of schedule is called what?

A

Predictive

68
Q

Materials sticks to a conveyor. This is caused by what?

A

Bad scraper

Millwright (11 decks)

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