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Millwright Level 2 > Coupling > Flashcards

Coupling Flashcards

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1
Q

5 types of ridgid coupling

A 
sleeve
compression
ribbed
flange face
threaded
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2
Q

simple rigid coupling use in low speed and low torque application made of a heavy walled tube .Has a keyway in the bore and set of set screws

A

sleeve coupling

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3
Q

rigid coupling grip shafts using tapered sleeve in tapered hub. Use in moderate to light loads

A

compression coupling

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4
Q

rigid coupling used in heavy load and torque services. The two halves of the coupling are split parallel to the shaft axes and have machined keyways in both shafts

A

ribbed coupling

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5
Q

Coupling use in vertical pumps to connect shafts of different diameter

A

rigid multibore

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6
Q

Rigid coupling with male and female counterpart. Shafts locked into place with key and setscrew

A

flange face coupling

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7
Q

Rigid coupling common on vertical pumps where drive unit is connect to the pump by a series of drive shafts

A

threaded coupling

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8
Q

The amount of allowable misalignment for various types of coupling specified by manufacturer

A

absolute maximum

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9
Q

3 ways flexible coupling are classified

A

mechanically flexible
material flexible
combination

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10
Q

4 types of mechanically flexible coupling

A

roller
silent
synthetic chain
gear

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11
Q

mechanically flexible coupling with 2 sprockets keyed to the shaft

A

roller chain

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12
Q

mechanically flexible coupling for heavy duty drives used on two wide sprockets

A

silent chain coupling

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13
Q

mechanically flexible coupling used in light drives, for food, textile or other industries where oil and gas is not desirable

A

synthetic chain coupling

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14
Q

mechanically flexible coupling with 2 hubs with external sleeve and a sleeve with internal teeth

A

gear coupling

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15
Q

4 types of material flexible coupling

A

rubber tire
elastomeric
pin and biscuit
flexible metal disc coupling

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16
Q

5 types of material and mechanically flexible coupling

A 
steel grid
jaw and spider
splined and rubber
pin and disc
pin and rubber
17
Q

material and mechanically flexible coupling with steel spring grid that allows for torsional flexibility and minor amounts of misalignment

A

steel grid coupling

18
Q

material and mechanically flexible coupling torque passed through spider and spider insert acts as a dampener reducing shock and vibration

A

jaw and spider coupling

19
Q

material and mechanically flexible coupling with a rubber sleeve with internal and external teeth. High torsional flexibility, can tolerate shock loads, reversing and dampen vibration. Allows shaft misalignment and considerable axial movement

A

splined rubber coupling

20
Q

material and mechanically flexible coupling with flexible disc to transmit power between hubs with pins

A

pin and disc coupling

21
Q

material and mechanically flexible coupling consist of 2 hubs. One has holes all around and the other removal rubber studs.

A

pin and rubber coupling.

22
Q

Joint with 2 yokes for one angle, and limited to low forces, speeds and small angle

A

single universal joint

23
Q

2 universal joints for angular and parallel offset. Angles are equal

A

Double universal joint

24
Q

2 universal joints when angles are unequal

A

Constant velocity joint

25
Q

4 characteristic of centrifucal design coupling

A

soft start
smooth acceleration
overload protection
dampening shock loads

26
Q

what are the 2 operating members in a fluid coupling

A

impeller or pump

turbine or runner

27
Q

Amount of slip in fluid coupling

A

2-6%

28
Q

How much to fill fluid coupling

A

80% of maximum

29
Q

shearing pin couplings are made of soft steels such as

A

mild steel
brass
aluminum
copper

30
Q

2 coupllngs used to change shafting space

A

spacer

floating

31
Q

5 high power and torque coupling

A 
gear
universal joint
silent chain
flange face
flexible metal disc
32
Q

6 low powered coupling

A 
sleeve coupling
roller chain
rubber tire
steel grid
jaw and spider
splined rubber

Millwright Level 2 (16 decks)

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