Sanitation 4

No building water service pipe shall be less than

_____in diameter

a. 19 mm

b. 25 mm

c. 1 inch

d. ½ inch

A

Shower head used in private has ___water supply

fixture unit

a. 1

b. 2.5

c. 3

d. 2

D

Clean-outs shall be provided at every ____ length

or a fraction thereof

a. 15 m

b. 10 m

c. 20 m

d. 18 m

A

Clean-out may be omitted on a horizontal drain

line less than ____in length

a. 2.0 m

b. 1.80 m

c. 1.50 m

d. 2.5 m

C

The minimum slope required for 102 mm

diameter pipe or larger drainage piping

a. 1 %

b. 2 %

c. 1.5 %

d. None of these

A

Vent opening shall terminate not less than ____

from any window, door or any opening

a. 1.0 m

b. 0.90 m

c. 3.0 m

d. 0.30 m

c

In hospital wards, 1 bath tub or shower shall be

provided per ____

a. 10 patients

b. 15 patients

c. 20 patients

d. 30 patients

c

. Lavatories not affected by side walls, with

effective opening not greater than 13 mm dia.

Has minimum air gap of _____

a. 25 mmm

b. ½ inch

c. 38 mm

d. 2 inch

a

Water supply wells shall be located at least

_______ from building sewer

a. 10.00 m

b. 12.00 m

c. 15.20 m

d. 20.50 m

c

Gate valve used in drainage work having a 102

mm diameter or larger shall have ____bodies

a. Cast iron

b. Cast brass

c. Bronze

d. Galvanized iron

a

Manhole in septic tank shall be provided with

minimum dimension of _____

a. 600 mm

b. 508 mm

c. 400 mm

d. 458 mm

b

Roof deck strainers shall have a total net inlet

area less than ______ times the area of the outlet

pipe to which the drain is connected.

a. One and one-half

b. Two

c. Three

b

Which of the following fitting is not

recommended to be used in the change of

direction in drainage line?

a. 45 wye branches

b. 90 elbow

c. Combination wye and 1/8 beNd

d. Long sweep elbow

b

A private plumbing system is composed of a flush

tank water closet, a lavatory, a shower head and

faucet. What is the total FU (water supply)?

a. 9

b. 16

c. 10

d. 7

A

A pipe fitting, which is threaded on both the

inside and the outside so that it can be used to

connect two pipes (or other fittings) of different

sizes.

a. Cap

b. Bushing

c. Adapter

d. Flange

B

A pipe made from an alloy containing 85 percent

and 15 percent zinc and generally used in local

branch lines and in alteration to match existing

work.

a. Brass pipe

b. Galvanized iron pipe

c. Copper pipe

A

A small concrete receptacle between the septic

tank and the drain field in which lines of drain

tiles extends and which acts as surge tank to

distribute the flow of sewage equally to each line

of drain tiles

a. Distribution box

b. Digestive cesspool

c. Domestic sewage

d. Drainage system

A

The least expensive but the noisiest water closet;

only small amount of standing water-susceptible

to fouling, staining and contamination.

a. Siphon jet

b. Siphon vortex

c. Siphon washdown

d. Reverse trap

C

A plumbing fixture used for washing the middle

part of the body, especially genitals. It is also

known as the Sitz Bath.

a. Bidet

b. Lavatory

c. Water closet

d. Urinal

A

Minimum trap diameter for laundry tub

a. 38 mm

b. 32 mm

c. 51 mm

d. 72 mm

A

It is considered to be the most quiet, most

efficient and most sanitary water closet.

a. Siphon jet

b. Siphon vortex

c. Reverse trap

d. Siphon washdown

B

Minimum trap diameter for shower bath

a. 38 mm

b. 32 mm

c. 76 mm

d. 51 mm

D

A receptacle attached to a plumbing system other

than a trap in which water or waste may be

collected for ultimate discharge into the plumbing

system

a. Water closet

b. Fixture

c. Drainage system

d. Storm drainage

B

. Each shower receptor shall be constructed to

have a finished dam, curb or threshold of at least

_____ mm lower that the outside floor.

a. 25.4 mm

b. 52.4 mm

c. 24.5 mm

d. 54.2 mm

A

A plumbing fixture usually located in the

operating room in a hospital to enable personnel

to scrub their hands prior to a surgical procedure;

the hot and cold water supply is activated by a

knee-action mixing valve or by wrist or pedal

control.

a. Slop sink

b. Scrub sink

c. Shower bath

d. Laundry tub

B

This is less esthetic than aeration but more

certain oxidation process. It is commolly used in

cooling lower treatment and in addition

ozonation has very wide range of treatment

application

a. Coagulation

b. Filtration

c. Disinfection

d. Ozonation

D

A pipe within the structure or on the premises

which conveys water from the water service pipe

or meter to the point of utilization

a. Water distribution pipe

b. Water pipe

c. Riser

d. Water service pipe

A

What is the size of downspout if the rainfall

intensity is 100 mm Ɵ(4") on a 1200 m2 deck roof

a. 75 mm Ɵ

b. 100 mm Ɵ

c. 200 mm Ɵ

d. 150 mm Ɵ

D

What is the size of horizontal rainwater pipe with

2% slope if the max. rainfall is 100 mm on a 206

m2

a. 250 mm

b. 100 mm

c. 300 mm

d. 375 mm

B

How many lavatory shall be installed in a school

with 240 male students

a. 6

b. 3

c. 5

d. 4

A

What is the size of downspout if the rainfall

intensity is 100 mm (4") if the deck roof is 435

mm 2

a. 50 mm Ɵ

b. 150 mm Ɵ

c. 75 mm Ɵ

d. 100 mm Ɵ

D

What is the size of gutter 2 % slope if the max

rainfall 150 mm on 13 m

a. 175 mm

b. 120 mm

c. 200 mm

d. 150 mm

gutter slope is set at 1/2 inch per 10 feet of guttering

What is required when cast iron pipe and fittings

of different sizes are to be joined or connected?

a. Gasket

b. Nipple

c. An increaser or reducer

d. Union patent

C

What is the fixture unit of 18 storey dormitory

building with 6 bathroom group on every floor

with class 2

a. 763

b. 765

c. 756

d. 645

C

What is the recommended size of service pipe

approved by MWSS for a 2 storey residential

house?

a. 1 ¼" Ɵ -31 mm

b. 1" Ɵ -25 mm

c. ½" Ɵ - 12 mm

d. ¾" Ɵ - 19 mm

D

what is the cause of object desirable taste and

odor of water

a. mineral

b. nitrogen

c. oxygen

d. algae

D

How does the safety features of a service hot

water system works?

a. Automatically

b. Electrically

c. Mechanically

d. Manually

A

What is the minimum size of water supply for

water closet flush valve type?

a. ½ inch

b. 1 inch

c. 1 ½ inch

d. ¾ inch

B

How do you measure the rainfall intensity?

a. Inches/ hr

b. Inches/ min

c. Inches/ sec

d. Inches/ day

A