Plumbing and Sanitary Systems - JACB

Question 1

Three major phases/processes that water undergoes in the water cycle

Answer 1

Evaporation, Condensation, Precipitation

Question 2

The process by which water is given off to atmosphere from vegetation.

Answer 2

Transpiration

Question 3

Give three other forms of precipitation other than rainfall.

Answer 3

Snow, Hail, Sleet

Question 4

The movement of precipitation through soil after entrance into the ground.

Answer 4

Percolation

Question 5

Water found in the Zone of Saturation.

Answer 5

Ground Water

Question 6

The water-bearing stratum or formation.

Answer 6

Aquifer

Question 7

Types of wells.

Answer 7

Artesian, Shallow, Bored, Jetted, Driven, Drilled

Question 8

Types of aquifers (soil types that absorb water).

Answer 8

Sand, Sandstone, Gravel

Question 9

Two common types of flexible pipes for water distribution.

Answer 9

Polyethylene (PE) and Polybutylene (PB)

Question 10

Two common types of pump used for bored and drilled wells.

Answer 10

Piston and Centrifugal

Question 11

Type of shut-off valve with fixed inlet and outlet.

Answer 11

Globe Valve

Question 12

Pipe fitting used to avoid backflow of water.

Answer 12

Check Valve

Question 13

Pipe used for hot water distribution.

Answer 13

UPVC (Rigid), PE and PB (Flexible)

Question 14

Considered the safest/purest source of natural water.

Answer 14

Rain Water

Question 15

Type of self-acting valve used to close off water supply inlet in the storage tank when the designated level is reached.

Answer 15

Float Valve

Question 16

Method to reduce odor in water.

Answer 16

Aeration

Question 17

Trigger switch in a multi-point heater that requires minimal pressure.

Answer 17

Flow Switch

Question 18

A type of valve commonly used for supply pipes of fixtures for purposes of maintenance and repairs.

Answer 18

Angle Valve

Question 19

Type of well that can provide good quality water.

Answer 19

Drilled Well

Question 20

Pipe fitting used to join 2 pipes already set in place.

Answer 20

Union (Patented)

Question 21

True or False: A 30psi pressure can bring up water up to 10 storeys or 31.70 meters.

Answer 21

False (45psi)

Question 22

True or False: The probability of simultaneous use of fixtures depends on the total fixture units involved.

Answer 22

True

Question 23

True or False: A check valve can also be used to join two similar pipes together.

Answer 23

True

Question 24

True or False: A spring valve is a type of check valve.

Answer 24

True

Question 25

True or False: A flow switch operated heater is commonly preferred because of its economical use.

Answer 25

False

Question 26

True or False: Six (6) meters is the commercial length of most flexible pipes.

Answer 26

False

Question 27

True or False: A fixture unit is equivalent to 8 liters of water discharge per minute interval.

Answer 27

False (7.5gal - 8gal)

Question 28

True or False: A urinal discharges 5 gallons of water per operation.

Answer 28

False (5FU = 40gal)

Question 29

True or False: A solar heater is more economical in the long-term use.

Answer 29

True

Question 30

True or False: A multi-point heater requires more hot water pipe than a single-point water heater.

Answer 30

False

Question 31

What is turbidity?

Answer 31

This is the measure of the relative clarity of a liquid. It is an optical characteristic of water and is a measurement of the amount of light that is scattered by mineral in the water when a light is shined through a sample of the water. The higher the intensity of scattered light, the higher the turbidity.