102E Flashcards

1
Q

Small air handling systems include

A

Portable air conditioner
Window air conditioner
Wall air conditioner
Ductless split air conditioner

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2
Q

Evaporator capacities range between on small units

A

6000-18000

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3
Q

Ductless split evaporator capacities range between

A

6000-60000

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4
Q

Medium air handling systems include

A

Evaporative coolers
Terminal units
Makeup air
Commercial package systems

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5
Q

Trade name for evaporative cooler is

A

Swamp cooler

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6
Q

Terminal units

A

Add and remove heat after the central air handling init

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7
Q

Two types of fans

A

Centrifugal fans
Propellor fans

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8
Q

Is lubrication necessary on sleeve bearings

A

No

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9
Q

Roller bearings require lubrication

A

Yes

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10
Q

Propellor fans are called

A

Axial fans

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11
Q

Propeller fans push the air

A

Forward

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12
Q

Curved airfoil blade fan is the

A

Best efficiency

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13
Q

Centrifugal fans are non

A

Overloading

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14
Q

Propeller fans are

A

Overloading mechanisms

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15
Q

Never allow a Vbelt to run on the flat bottom surface
True or false

A

True

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16
Q

The 4L and 5L belts are

A

Light duty

17
Q

A and B belts are for

A

Heavy duty

18
Q

Do you lubricate a belt

A

No

19
Q

A sheave is a wheel used to

A

Transfer mechanical energy

20
Q

Outdoor air makes up for

A

10-20%

21
Q

Mixing chambers combine both

A

Outdoor air and return air

22
Q

Maintenance process is in

A

Mechanical
Electrical
Controls
Preventive maintenance