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Plumbing and Sanitary Systems > PART 02 > Flashcards

PART 02 Flashcards

To understand and to pass the quiz

1
Q

General Type of Wells

A

Shallow Wells, Deep Wells

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2
Q

o Most common type
o Usually dug manually
o Around 15 m deep

A

Dug Well

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3
Q

Similar to dug well, but constructed using an auger driven in by hand or with power tools

Seldom hand driven
below 15 meters, but can reach 40+ meters with power tools.

A

Bored Well

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4
Q

o Use of extreme water
pressure so as not to—H–+i-+-‘ ‘
affect existing foundations in the vicinity
o Makes use of a suction pump above, while casing acts as the pump riser
o Used only where ground is relatively soft hence sometiems referred to as “Sand-Point Wells”

A

Jetted Well

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5
Q

o Dug with a sharp pointed hollow slotted iron rod and well screen
o Depths are from 10-15 meters

A

Driven Well

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6
Q

o Used for drilling oil
o Can reach up to 1000 m

A

Drilled Wells

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7
Q

2 Most Common Sources of Contamination

A

Septic Tank/leach fields
Livestock feedlots

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8
Q

In locating a well, location must not be ____________

A

100 ft. away from such pollution sources

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9
Q

Locate on _____________

A

higher ground

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10
Q

The ______ the well, the better for natural filtrattion

A

deeper

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11
Q

Well screens are made of _________ material like brass.

A

Non-Corrosive

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12
Q

______ material like stones and rock sediment provide additional screening

A

Natural

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13
Q

Basic types of Pumps

A

Piston Pump, Centrifugal Pump

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14
Q
  • Water is sucked into a sealed vacuum by use of a piston
    o Single
A

Piston Pump

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15
Q
  • Water is drawn into the pump & discharged with a centrifugal force.
A

Centrifugal Pump

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16
Q

Piston pumps that operate with controlled speed. The discharge from a — is pulsating and changes only when the speed of the pump is changed. Sometimes an air chamber is introduced to regulate the pulsation.

A

Reciprocating Pumps

17
Q

______ are centrifugal pumps typically used for drawing water up from a well.

A

Jet Pumps

18
Q

are piston pumps that make use of a pump drivers
can discharge from 900 to 1200 GPM
are more efficient for viscous fluids

A

Rotary Pump

19
Q

are designed to be fully immersible within a tank or other media storage receptacle.
* Many common types of pumps can be designed by manufacturers to be –
e. Sump Pumps

A

Submersible Pumps

20
Q

are used in applications where excess water must be pumped away from a particular area.

A

Sump pumps

21
Q

are centrifugal pumps used for large applications because of their multiple impellers
can discharge up to 2000 GPM

A
  • Turbine Pumps
22
Q

Types of tanks for domestic use

A

Overhead tanks, Cisterns, Pressure Tanks, Hot Water Tanks

23
Q
  • Does not have any pressure concerns but relies on gravity to supply water to fixtures below
A

Overhead Tanks

24
Q
  • Usually built of reinforced concrete underground and connected with a pump
A

Cisterns

25
Q

Used in Overhead Feed System
* Main Components:
o Supply Pipe
o Inlet
o Overflow Pipe
o Drip Pan

A

Gravity Supply Tanks

26
Q
  • Used in the Air Pressure System
  • Often used with a pump
  • Also makes use of a pressure relief valve, which relieves pressure automatically if necessary
A

Pneumatic Water Tanks

27
Q
  • Small hot water tank (30-60 cm diameter; 180cm max length)
  • Made of galvanized steel sheet, copper or stainless steel
  • Standard working pressure limit is 85 to 150 psi
A

Range Boiler

28
Q

o Used mainly to completely close or completely open the water line (does not control flow of water).
o Best suited to the main supply and pump lines wherein operation is infrequent.

A

Gate Valve

29
Q

2 Types of Gate Valve

A

The Wedge Shape or Tapered Disc, The Double Disc Valve

30
Q

o Controls the flow of water with a movable spindle.
o Can reduce water pressure (throttling).
o Only one side of the valve is an inlet.

A

Globe Valve

31
Q

3 Types of Globe Valves

A

The Plug Type Disc Valve (for throttling)
The Conventional Disc Valve (for shutting)
The Composition Disc Valve (for steam and hot water)

32
Q

Main function is to prevent reversal offlow (backflow)

A

Check Valve

33
Q

4 Types of Check Valve

A

The Swing Check Valve
The Lift Check Valve
Vertical Check Valve
Horizontal Check Valve

34
Q

o Operates in the same manner as globe valve (disc & seat design)
o Used to make a 90° turn in a line
o Reduces number of joints

A

Angle Valve

35
Q

o Located at the lower end of the pumps
o Used mainly to prevent loss of priming of the pumps

A

Foot Valve

36
Q

Used on water systems, heating systems, compressed air lines & other pipe lines with excessive pressure.

A

Safety Valve

37
Q

o Operates by the compression of a soft packing upon a metal sheet

A
  • Compression Cock
38
Q

o Operates with a round tapering plug ground to fit a metal sheet.
‘Hose bibb” - has grooves fit for a hose

A
  • Key Cock
39
Q

Constructed with a ball connected to the handle

A

Ball faucet

Plumbing and Sanitary Systems (5 decks)

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