Spdi 1

100 questions • 1 mo ago

Question list

How do you connect pump in series?

Same gpm

Construction of septic tank should be located at a distance away from the source of water supply to prevent sanitation

15 m

It is compartment in the septic tank usually extended above the surface of the ground to overcome surface water infiltration

Leaking chamber

The retention period or the time for which suspended matters in septic tank would settle and stabilize is:

24 hrs

A septic tank is a water tight receptacle for which the sewage is digested than a biological action mainly by microorganism.

Anaerobic bacteria

The top cover and the manhole of a septic tank usually extended above the surface of the ground to overcome surface water infiltration.

5 cm

The soil branch piping installed in horizontal run must be supported by substantial iron hanger at close interval to prevent sagging, approximate a distance

1.50 meters apart

Soil pipe is the part of the drainage system, which conveys waste water containing organic waste, whereas waste pipe is apart that conveys waste containing.

All of these

The soil branch must be slope at a grade so that waste content is given a flow of pipe velocity to assure a self-scouring condition and lesson the possibility of seal losses stoppage and retarded flow.

All of the above

It is temperature at which water vapor forms above liquid fuel.

Flash point

Pour index horsepower is how many foot lbs per minutes

33 000

The speed at which an exact model of the pump would have to run if it were designed to deliver 1 GPM against 1 feet head per stage

Peripheral speed

A positive displacement pump is

Rotary pump

A pressure gage register 50 psig in a region where barometer is 1.25 psia. Find the absolute pressure

51.25 psi

A pump used in underground

Submersible pump

The property of a fluid whereby its own molecule are united or attracted to each other is:

Cohesion

A state of complete physical mental and social well-being and not merely the absence of disease or infirmity.

Health

Public health substance that deforms continuously under the application of a shear force. It cannot sustain a shear force at rest is:

Fluid

Study of the distribution of the disease or condition in a population

Epidemiology

The physical characteristics of sewage is determined by:

All of the above

It includes the discharge from latrine, urinals, bathrooms, kitchens and stables is called:

Sewage

Used to deliver water at a point higher than the position of the pump itself when the plunger decends, the valve is closed and the water in the cylinder is forced out through the valve and up to the storage.

Force pump

Bacteria which has no function in sewage treatment

Pathogenic Bacteria

It includes the urea, proteins and amino acids is

Nitrogenous compound

At a point in a horizontal pipeline, the pressure of water flowing at a velocity of 4.6 m/s is 117.3 kPa at another point closed by, where the pipe has a smaller section, the pressure is 110 kPa. If the head loss is 0.2, find the velocity of flow at the second point

5.64 m/s

The rate of flow of liquid measured per unit of time, usually gpm or lps.

Flow rate

The total relationship of man to physical, biological, socio-economic and socio-cultural environment as it affects human well being

Environmental health

Applied to a specific disease when it normally prevails in locality and does not fluctuate markedly from the normal expected merdence in the commonly

Endemic

Disinfection of drinking water is done to remove

Bacteria

Means by which infectious agents are transported in causing disease. Water, food, insect and inanimate object may be vehicles of infection, insects or rodents are sometimes

Vehicle of inspection

The unit of kinematics viscosity in metric system

Sq. m per sec

The combination of sanitary sewerage and storm water is:

Combine sewage

A type of valve which should be used only wide open or fully closed

Gate valve

Cast iron weighs 640 lbs per ft^3. What is the weight of the cast iron block is 14’ x 12’ x 18’ is?

1120 lbs

1 psi is equivalent to a water head of

2.31 psi

Instrument used to measure the water flow

Venture meter

What is the temperature in 0 C of 2 liters of water at 300 C after 500 calories of heat have been added?

280 K

The volume of a liquid passing through a cross section of a stream in unit time is called:

Discharge

Determine the water nature through acidity or alkalinity is;

pH value

Pipe fitting are intended to make change direction, turn and offset, but their use must be planned carefully so that waste within the line have free passage, the fitting use in vertical to horizontal changes of direction is:

long sweep bend

Waste pipe is classified into two ways, according to the type it serve, direct waste as one terminal solidly joined to the plumbing system, whereas indirect waste has terminal drain pipes simply empty into the;

None of these

Drinking fountain or bubbler when they are located in the building may be connected to the pipe that terminate into:

Waste pipe

Sink are patterned in two style, trap standard to the floor and trap to the wall, the sink used as a rule for janitorial services in a building is called:

Slop sink

Corrosion in pipe, what is the by-product of chemical reaction of oxidation in forming ferrous oxide or rust is covered by the action of:

Sulfur oxide

Pipe is one of the oldest plumbing materials and very suitable for underground installation, but never recommended to convey water human consumption because it is poisonous:

lead pipe

The pipe that is remarkable for hot water lure installation:

Copper pipe

The non-soluble materials which is the end product after biological action of bacteria in waste and what settles at the bottom of the septic tank is called:

Sludge

Which sources of water supply that was not used in the older days?

Centralized treatment of reservoir

What is that appurtenant structure installed at the basement floor of a building which waste water are drained?

Sump pit

What water storage that was not used during primitive period?

Glass container

Interconnection of sewer service pipe into a sewer main is made by punching the sewer main a hole to fit the sewer service. In what poit on the sewer main does interconnection made?

On the top of the sewer main

What is water that diminishes the capacity of water to form lather with soap?

Mineral that makes water hard

Saddle clamp is a pipe fitting which is not use when water service is to be interconnected to the type of water main.

Asbestos cement pipe

Flowing stream of water has the tendency to purify itself which term is not applicable in the purification?

Dilution

How far should a septic tank be constructed away from the water supply source to prevent contamination?

15.2 m

What is the chief factor in clarification of still water since particles of solid materials will settle more readily in still than flowing water?

Sedimentation

The soil branch piping installed in horizontal run must be supported by iron hanger at closet interval to prevent sagging. What is the distance apart the hangers?

1.5 m

Before water from any source will be adopted for domestic water supply, what kind of examination will it be subjected to:

Chemical and bacteriological

Which method that is not commonly used for bringing water from its source to the customer?

Direct pressure system

A well that penetrates the earth to depths of not more than 100 ft

Deep well

To reduce the excessive pressure that produces a hammering sound, how long, a pipe should be added and installed on the top of riser of the highest fixture level to absorb air pressure.

0.3-0.9 m

What is the minimum horizontal distance required between vent terminal and window opening of a building?

3 m

What should be the minimum clearance that should be made with respect to the floor line to allow convenient opening or closing of a clean out?

300 mm

A well that passes through one or more source impervious strata and penetrates a water bearing stratum in which water is held under pressure and water rises in the well?

Artesian well

What is the size of relief vent on a circuit vented soil branch installation of plumbing fixtures?

½ times the diameter of the soil pipe

What is the size of the yoke or by pass vent for a high rise building?

Equal size of the main vent

The top of the well is lower that the high position of the previous stratum from which the water is obtained and water will rise through the entire length of the well and way flow from the wall without pumping

Flowing well

What do you call the undesirable type of vegetation formed when water reservoir is exposed to light?

Pond scum

Which does not apply in the removal of suspended materials and color in the water supply?

Chlorination

The pipe or shaft which is used to remove foul or congested air from a fixture or a room and convey the same to the atmosphere is called _______

Local vent

What is the process of water supply purification which consists of applying certain chemicals in particles too small to be removed by plain

Coagulation

What is the type of water closet prescribed for public toilet?

Elongated bowl type

What is the process of exposing water in their films to the oxygen of the atmosphere in order to remove neutralize the taste, odor and dissolved oxygen?

Aeration

What is the pipe fitting with outside thread and projecting square head used for closing the edge of another fitting?

Plug

The jelly like substance being formed in the process of coagulation?

Floe

The handicapped fixtures are usually designed for people with less physical ability that the general public. For the handicapped, what is the prescribed height of the toilet bowl?

450 mm

What are the used disinfections large public water supplies?

Chlorine

The difference between a tube and a pipe is that the tube has relatively thin wall and ____.

The listed size correspond to the outside diameter

What is the important advantage of chlorine compared to other water supply treatment?

Kills bacteria

What is the prescribed distance of vent from trap seal in plumbing installation?

1.5 m

What is that vent pipe system on plumbing which liquid waste flow through?

Wet vent

The classification of water when it contains dissolved salts of calcium and magnesium?

Hard

What is that vent pipe in plumbing that serve the building drain and building sewer?

Relief vent

What is that receptacle attached to the plumbing system other than trap on which water or waste may be collected or retained for ultimate discharge into the drainage?

fixture

How is water hardness measured?

Ounce of hardness

What is the pipe connection in which a ball is held in a cup-like that allows movement in every direction?

Ball joint

What is the good reason why hardness in water is objectionable?

Scaling of boilers

Leaching field is categorized as one of the on-site efferent disposal for septic tank. How far should be the distance from a shallow well to prevent contamination of water?

25 m

What do you call that process of removing the hardness causing minerals from water?

Water softening

In plumbing, the unobstructed vertical distance through the free atmosphere, between faucet supplying water and the flood level rim of a fixture is called ______

Air gap

What is the minimum capacity of the water tank needed for a complete water closet flushing in a toilet?

12 L

What is vertical distance between the dip and crown weir of the trap?

Trap seal

What is that fittings so installed in plumbing system to prevent passage of air, gas and some vermin through the pipe?

Trap

What is the type of wrench used in working with plated finish and in place with too small to admit pipe wrench?

Strap wrench

What is that fitting that operates automatically when refilling the water tank after each discharge and shutting off completely when the tank is already full?

Float valve

An oil tank is 3m long, 3 m wide and 2 m high, when it is full of coconut oil specific gravity of 0.90, find the downward force at the bottom of the tank.

16,200 kg

A swimming pool is 6m wide by 12m long, if is 1.20 m deep in one end and 2.40 at the other end. How many gallon of water does it contain?

34,240 gal

A rectangular ground reservoir is to be constructed to serve the water supply requirement for a commercial building the outside dimension of the reservoir is 8m long, 6m wide and 8m deep. Compute for the total cost of excavation if the cost of labor is P50.00 per cubic meter.

19,200

Master Plumber A can finish the excavation and pipe laying of storm drainage in 8 hrs, Master Plumber B require 10 hrs to do same job. How many hours are required if both A &B work together?

4.24 hrs

100

A plumber is to use a deep well as source of water to supply for the building under construction and he want to estimate the length of intake pipe, so, from the surface of the ground he drop a coin into the well and after 2 seconds he heard the splashing sound down under, how deep is the well?

64 ft

YT1 Materials Engineer EXAM

Anonymous · 100 questions · 1 mo ago

YT1 Materials Engineer EXAM