Plumbing 1
Settings
ABOUT PLUMBING
- 1.______________ may be used either for the collection of water without consideration of pressure, or for storing water under air pressure or under a static head for future distribution by pneumatic or gravity means. Materials are PVC, G.I., reinforced concrete, stainless steel or plain steel.
- A.
CISTERN/ CISTERN TANK
- B.
WATER TANK
- C.
WATER DAM
- D.
COFERDAM
- 2.________ are holes in the earth from which a fluid may be withdrawn using manual or mechanical means such as draw bucket,pump,etc.
- A.
WELLS
- B.
PITS
- C.
FOX HOLES
- D.
NON OF THE ABOVE
- 3.Which is not one of the components of plumbing?
- A.
Water Supply Distribution System
- B.
Sanitary Drainage and Disposal System
- C.
Storm Drainage System
- D.
Electrical Piping System
- E.
All of the above
- 4.What is the best fixture for a public comfort room
- A.
Gatevalve
- B.
Flushometer
- C.
Faucet
- D.
Non of the above
- 5.What can discharge directly to the sewer system
- A.
Building Sewer
- B.
Oil and Grease
- C.
Ashes
- D.
Non of the above
- 6.Water is sprayed into the air to release any trapped gases and absorb additional oxygen for better taste.
- A.
Aeration
- B.
Sedimentation
- C.
Chlorination
- D.
Filtration
- 7.Water is purified by ___________. In various processes, so as to remove the particles of vegetable matter, mud and other particles of matter present in the water, most commonly used materials are sand and gravel.
- A.
Filtration
- B.
Purification
- C.
Sedimentation
- 8.Water is passed through layers of sand and gravel in concrete basins in order to remove the finer suspended particles.
- A.
COAGULATION
- B.
FLOCCULATION
- C.
SEDIMENTATION
- D.
FILTRATION
- 9.Water cycle is consists of 3 stages of process, which is not included
- A.
Evaporation
- B.
Condensation
- C.
Precipitation
- D.
Hydration
- 10.Use extreme water pressure so as not to affect existing foundation in the vicinity. It makes use of a suction pump above, while casing acts as the pump riser.
- A.
BORED WELLS
- B.
DRILLED WELLS
- C.
JETTED WELLS
- D.
DUG WELLS
- 11.UPVC means:
- A.
UNPLASTICIZED POLYVINYL CHLORIDE pipe
- B.
PLASTICIZED POLYVINYL CHLORIDE pipe
- C.
POLYVINYL CHLORIDE pipe
- 12.Underground container for waste matter: a covered underground tank or well for the collection of waste matter and water, especially sewage.
- A.
CISTERN
- B.
SUMP PIT/ CESSPOOL
- C.
SEWAGE TANK
- 13.Turbidity is another problems of water for water distribution, because Silt or mud in surface or in ground, which can cause of discolation of water and bad taste, what is the best solution for this
- A.
Aeration
- B.
Sedimentation
- C.
Filtration
- D.
Boiling
- 14.To reduce water hammer?
- A.
Put noise reduction insulation to absorb noise that will be created by the pipes
- B.
An additional 0.30m to 0.90m length of pipe is added to the riser to give air pressure which absorb it.
- C.
Addtional vent pipe
- 15.
- To insure no leakage, a G.I. pipe when threaded has to use lead liquid or ______ tape around the thread before tightening the fittings.
- A.
Solvent
- B.
Teflon
- C.
Packaging
- D.
Electrical
- 16.This water source is often in springs and wells as a source of water
- A.
Ground water
- B.
Rain water
- C.
Natural Water
- D.
Non of the above
- 17.This pumps are used in applications where excess water must be pumped away from a particular area.a pump used to remove water that has accumulated in a water collecting sumppit,
- A.
JET (EJECTOR) PUMP
- B.
SUMP PUMP
- C.
TURBINE PUMP
- D.
PISTON PUMP
- 18.This is a portion of the rain water which has percolated into the earth to form underground deposits
- A.
Aquifers
- B.
Well
- C.
Cistern
- D.
Soil bearing
- 19.This is a kind of pump attached to the end of deep well pipe enclosed in a casing where the pump is capable of functioning while submerged.
- A.
Force pump
- B.
Submersible pump
- C.
Lift pump
- 20.This consists of a wedge-shaped plug which is screwed down to seat between two brass rings surrounding the inlet pipe so that a double seal is obtained. The inlet and outlet are in a straight line. This valve is used when a normal fully open or closed position is desired. Either end may be used as inlet
- A.
Gatevalves
- B.
Checkvalves
- C.
Globe valves
- 21.
- These valves are used when it is desired that the flow through a pipe be always in one direction and there is a possibility of a flow taking place in the opposite direction. One type has a pivoted flap which is readily pushed open by the pressure of water from one side but is tightly closed by the force of a reverse flow.
- A.
Gatevalves
- B.
Checkvalves
- C.
Globe valves
- 22.These are dug with earth augers are usually less than 30 meters (100 ft) deep. The diameter ranges from 2 to 30 inches. The well is lined with metal, vitrified tile or concrete.
- A.
DUG WELLS
- B.
BORED WELLS
- C.
DRIVEN WELLS
- D.
SHORE WELLS
- 23.There is a septic tank installed on the top of a rock by the seashore. the tank is exposed on low tide, and covered in sea water during high tide. which of the following would be an appropriate water proofing for it.
- A.
Water proof all surface, exterior and interior
- B.
Water proof all interior surface except the floor
- C.
Water proof the walls only exterior and interior
- D.
Non of the above
- 24.There are several reasons why soil stacks are not allowed in columns. Which is NOT the reason?
- A.
Pipes will interfere with reinforcing Bars
- B.
The size of the columns will be larger
- C.
Cracks and leaks cannot be detected
- D.
The Gas emitted will deteriorate concrete
- 25.The pipe from the public water main or source of water supply to the building served
- A.
SERVICE PIPE
- B.
MAIN SERVICE PIPE
- C.
DISTRIBUTION PIPE
- 26.The other physical properties of water is ability to climb up a surface against the pull of gravity
- A.
SURFACE TENSION
- B.
HEAT ABSOPTION/CAPACITY
- C.
CAPILLARITY
- D.
DISSOLVING ABILITY
- 27.The ability to stick itself together and pull itself together
- A.
SURFACE TENSION
- B.
HEAT ABSOPTION/CAPACITY
- C.
CAPILLARITY
- D.
DISSOLVING ABILITY
- 28.Suspended solids are removed from the water by gravity settling and depositionwater is passed through basins so sediments can settle through a period of time
- A.
COAGULATION
- B.
FLOCCULATION
- C.
SEDIMENTATION
- D.
AERATION
- 29.Requires more elaborate equipment depending on the geology of the site.Used for drilling oil and can reach up to 1000 meters in depth.
- A.
BORED WELLS
- B.
DRILLED WELLS
- C.
SHORE WELLS
- D.
DUG WELLS
- 30.
- refers to the public water system laid underground along the streets where the house service is connected.
- A.
Main service
- B.
Water source
- C.
Water main
- 31.Raw water is made to pass on pipes of tiny sieves (strainers) and exposed to air of fine mist to purify it.
- A.
Sedimentation
- B.
Reversed osmosis
- C.
Aeration
- 32.Pump having a plunger that move back and forth within a cylinder equipped with check valves.The cylinder is best located near or below the ground level.
- A.
CENTRIFUGAL PUMP
- B.
RECIPROCATING PUMP
- C.
TURBINE PUMP
- D.
SUBMERSIBLE PUMP
- 33.Properties of water, that can dissolved everything , Known as the “Universal Solvent”
- A.
SURFACE TENSION
- B.
HEAT ABSOPTION/CAPACITY
- C.
CAPILLARITY
- D.
DISSOLVING ABILITY
- 34.Plays an important part in the plumbing system, providing this is the most critical utility requirement, and also known as a "Universal Solvent"
- A.
Sewage
- B.
Water
- C.
Chloride
- D.
Purified water
- 35.Physical process in which the sediment particles collide with each other and stick together.
- A.
COAGULATION
- B.
FLOCCULATION
- C.
SEDIMENTATION
- D.
AERATION
- 36.PA ________is a device used to move fluids, such as liquidsor slurries.A MECHANICAL EQUIPMENT displaces a volume by physical or mechanical action.
- A.
PUMP
- B.
MOTOR
- C.
PROPELLER
- D.
MACHINE
- 37.
- One end is 0.30M and the other end is 0.90M long. This prevents the pipe from snapping (breaking?)when the soil settles. [U-shaped?]
- A.
Gooseneck
- B.
Corporation cock
- C.
Ball cock
- D.
Long neck
- 38.NAMPAP means?
- A.
National Masteral Plumbing Association of the Philippines
- B.
National Master Plumbers Associations of the Philippines
- C.
National Master Plumbing Associate of the Philippines
- D.
Non of the above
- 39.Method of introducing a controlled amount of chlorine to the water in order to attain a desired degree of disinfection.
- A.
CHLORINATION
- B.
FLOCCULATION
- C.
FILTRATION
- D.
SEDIMENTATION
- 40.Jet pumps are centrifugal pumps typically used for drawing water up from a well.
- A.
SUBMERSIBLE PUMP
- B.
TURBINE PUMP
- C.
JET (EJECTOR) PUMP
- D.
RECIPROCATING PUMP
- 41.Its is The ability to absorb heat without becoming warmer
- A.
SURFACE TENSION
- B.
HEAT ABSOPTION/CAPACITY
- C.
CAPILLARITY
- D.
DISSOLVING ABILITY
- 42.It contains an impeller mounted on a rotating shaft. The rotating impeller increases the water velocity while forcing the water in to a casing thus converting the water’s velocity into higher pressure.
- A.
CENTRIFUGAL PUMP
- B.
RECIPROCATING PUMP
- C.
TURBINE PUMP
- D.
SUBMERSIBLE PUMP
- 43.Is the art and technique of installing pipes, fixtures and other apparatuses in buildings & bringing the the supply liquids substances &/or ingredients and removing them
- A.
Source distribution
- B.
Plumbing
- C.
Mechanics
- D.
Non of the above
- 44.Is plumbing system which carries water from the water source, street main or a pump to the building and to the various points in the building at which water is used
- A.
Sewage System
- B.
Water Supply and Distribution System
- C.
Drainage System
- D.
Non of the above
- 45.Is basically a centrifugal pump complete with electric motors which are positioned under water in a suitable bored hole that delivers the water to the surface
- A.
CENTRIFUGAL PUMP
- B.
RECIPROCATING PUMP
- C.
TURBINE PUMP
- D.
SUBMERSIBLE PUMP
- 46.Is any method that will remove one or more materials that make the water unsuitable for a given use
- A.
Water Sedimentation
- B.
Water Treatment
- C.
Water boiling
- D.
Non of the above
- 47.Is a tank constructed of riveted or welded steel plate; the larger tanks often being divided into two compartments. They should be large enough to contain at least one day’s supply for the entire building in case the city main is temporarily shut off. The pipe from the pump to the tank should be across connected to the city main so that the water may be pumped directly from the main in case of fire. These tanks are used so that the pneumatic tank or other pumps suck the water from this tank and not from the public main, so that it will not deprive the neighbors of water due to pressure.
- A.
WATER TANK
- B.
CISTERN TANK
- C.
SUCTION TANK
- D.
PNEUMATIC TANK
- 48.Is a pump used to deliver water at a point higher than the position of the pump itself. When the plunger (a piston) descends, valve ‘A’ is closed and water in the cylinder is forced out through valve ‘B’ and up to the storage. When the plunger is raised, valve ‘B’ is closed and ‘A’ open to admit water to the cylinder. [A pump that uses pressure to move liquid]
- A.
Lift pump
- B.
Submersible pump
- C.
Force pump
- 49.Is a positive displacement reciprocating pump in which a plunger is driven backwards and forwards, or up and down by a mechanical working head.Water is sucked into a sealed vacuum by use of a piston.
- A.
PISTON PUMP PISTON PUMP
- B.
RECIPROCATING PUMP
- C.
JET (EJECTOR) PUMP
- D.
TURBINE PUMP
- 50.In 1935, this the only group/ organization for plumbing works and ordinaces
- A.
NAMPAP
- B.
NAPAP
- C.
DILG
- D.
DENR
- 51.Hardness is another problem for water distribution because of Presence of magnesium andcalcium salts, which can cause Clogging of pipes Impaired laundry and cooking, which is the best solution for this?
- A.
Chemical treatment
- B.
Boiling
- C.
Sedimentation
- D.
Aeration
- 52.G1. A fitting installed at a branching tee from a horizontal soil branch to a horizontal waste branch.
- A.
A. 4”x2” Wye and 2 1/8” bend combination
- B.
B. 4”x4” Tee
- C.
C. 4”x2” Tee
- D.
D. 4”x4” Wye and 4 1/8” bend combination
- 53.Excessive pressure produces a rumbling sound called the ____________
- A.
Water hammer
- B.
Water pressure
- C.
Water desimination
- 54.Chemical process in which the coagulant reacts with the sediment to make it capable of combining into larger particles.
- A.
COAGULATION
- B.
FLOCCULATION
- C.
SEDIMENTATION
- D.
AERATION
- 55.A_______ is water equipment used whenever the water supply at its natural pressure cannot be directly piped to a building, tank or reservoir.
- A.
Pump
- B.
Tank
- C.
Motor
- D.
Bibb
- 56.And the horizontal pipes that serve the faucets are called _______
- A.
Branches
- B.
Vent pipe
- C.
Riser
- D.
Stack vent
- 57.Amount of waste discharged for a waste water treatment facility
- A.
300 gpm
- B.
500 gpm
- C.
30 cu.m./day
- D.
50 c.u. m. /day
- 58.Advantage of Using Rain water is?
- A.
Water is soft & pure and is suitable for the hot water supply system
- B.
Water is available everyday
- C.
Water that is natural and purified by natural means
- D.
Non of the above
- 59.Acidity is one of the most problems in water distribution and water purification, which can cause Corrosion of non-ferrous pipes and Rusting & clogging of steelpipes, which is the best solution for this problem?
- A.
Passing the water through a bed of crushed marble or limestone to achieve alkalinity, or adding sodium silicate.)
- B.
Chlorination for removing salt contents
- C.
Aeration
- D.
Non of the above
- 60.A turbine pump ha s a vertical turbine located below ground water levels and a driving motor located at ground
- A.
CENTRIFUGAL PUMP
- B.
RECIPROCATING PUMP
- C.
TURBINE PUMP
- D.
SUBMERSIBLE PUMP
- 61.A tank using air pressure from a suction tank to distribute water for tall buildings which cannot be reached by normal pressure.
- A.
WATER TANK
- B.
CISTERN TANK
- C.
SUCTION TANK
- D.
PNEUMATIC TANK
- 62.
- A stop valve in a service pipe close to its connection with a water main.
- A.
Gate valve
- B.
Corporation cock
- C.
Check valve
- D.
Globe valve
- 63.A steel drive-wellpoint is fitted on one end of the pipe section and driven into the earth.The point may be driven into the ground to a depth of up to15meters(50ft).
- A.
DRIVEN WELLS
- B.
DUG WELLS
- C.
DEEP WELLS
- D.
SHORE WELLS
- 64.A pump consist of a piston traveling up and down within a cylinder which is connected with a pipe extending down into the source. The piston and the bottom of the cylinder are each provided with a valve opening upward. Upon the piston’s upstroke, valve ‘A’ closes and valve ‘B’ opens. Upon the piston’s down stroke valve ‘A’ opens and
- A.
Lift pump
- B.
Submersible pump
- C.
Force pump
- 65.A mixture of surface run-off and ground water. Surface sources includes rivers, lakes, ponds and impounding reservoirs.
- A.
Ground water
- B.
Natural surface Water
- C.
Rain Water
- D.
Natural Water
- 66.A method of purifying water wherein particles of matters that are suspended in the water are allowed to stay in a container so that they will settle in the bottom, then drawing the water out, leaving these matters in the container.
- A.
Aeration
- B.
Sedimentation
- C.
Reverse osmosis
- D.
Purification
- 67.
- A kind of G.I. fitting used as a reducer from a bigger diameter to a lesser diameter.
- A.
Bushing
- B.
Reducer
- C.
Fitting
- 68.
- A kind of G.I. fitting that has one end external threads, while the other end has internal threads.
- A.
STREET ELBOW or TEE
- B.
Wye
- C.
Elbow
- 69.1. Which of the following locations DO NOT require installation of a clean out?
- A.
A. At every branch interval of a soil stack
- B.
B. Any horizontal waste or soil pipe exceeding 15 meters
- C.
C. Any change in direction of a soil branch 22.5 degrees and over
- D.
D. At every end of every soil branch
- 70.1. Which in the list is NOT a standard commercial size of GI pipe for water supply?
- A.
A. 2 1/2” diameter
- B.
B. 3” diameter
- C.
C. 4” diameter
- D.
D. 5” diameter
- 71.1. Which criterion is NOT needed in sizing a vent pipe for individual, branch and circuit vent based on the total linear footage of the pipe making up the vent?
- A.
A. Developed length of the vent pipe
- B.
B. Number of fixture unit
- C.
C. Slope of the drain pipe
- D.
D. Size of the drain pipe
- 72.1. Where are dampers installed to regulate the amount of cool air for an even distribution to outlets?
- A.
A. at the trunk ducts
- B.
B. at a practical location at angles and elbows
- C.
C. at the branch supply duct as far as practical from the outlet
- D.
D. at the air boot fitting
- 73.1. What is the size of supply valve for tank type water closet?
- A.
A. 3/4”
- B.
B. 1/2”
- C.
C. 3/8”
- D.
D. 1”
- 74.1. What is the minimum size of a trap or branch of a residential kitchen?
- A.
A. 1 1/2”
- B.
B. 1 3/4”
- C.
C. 1 1/4”
- D.
D. 2”
- 75.1. What is the minimum size of a trap or branch for a lavatory?
- A.
A. 1 1/4”
- B.
B. 1 3/4”
- C.
C. 1 1/2”
- D.
D. 2”
- 76.1. What is a type of vent applied on installations with multi-branch interval where the vertical vent pipe takes off in front of the first fixture and connects to a main vent stack?
- A.
A. Relief vent
- B.
B. Yoke vent
- C.
C. Loop vent
- D.
D. Circuit vent
- 77.1. What is a GI fitting to join two threaded fittings as close as possible but not exceeding 3 inches?
- A.
A. Nipple
- B.
B. None of the three
- C.
C. Union
- D.
D. Coupling
- 78.1. What is a fire line system without a constant water supply and is equipped with a fire service inlet and outlet connection and installed exclusively for the use of the Fire Service?
- A.
A. Fire Department House Connection
- B.
B. Combination Standpipe
- C.
C. Dry Standpipe
- D.
D. Wet Standpipe
- 79.1. What is a device installed on top of a pressure tank used to protect against hydrostatic collapse due to suction or negative pressure resulting from back-siphonage in a downfeed water distribution system?
- A.
A. pressure reducing valve
- B.
B. vacuum breaker valve
- C.
C. air volume control valve
- D.
D. pressure relief valve
- 80.1. What does PE pipe stands for?
- A.
A. polyethylene pipe
- B.
B. polythylene pipe
- C.
C. polyvinyl extra pipes
- D.
D. plastics extra pipe
- 81.1. Water as delivered by NAWASA is no longer safe for drinking because of several contaminants from the water source present in the environment. It is now therefore imperative that water to be safe for drinking has to undergo water purification in several stages. Because of several contaminants, water undergoes several stages. What is a stage in water purification, which removes mineral deposits, salts, heavy metal, totally dissolves solids while some useful minerals are retained?
- A.
A. carbon filtration
- B.
B. aeration
- C.
C. ultraviolet radiation
- D.
D. reverse osmosis
- 82.1. The term used to the main water pipe delivering potable water to a building is called
- A.
A. Water service pipe
- B.
B. NAWASA
- C.
C. Main pipe
- D.
D. Water utility pipe
- 83.1. The standard size of an outlet of a dry standpipe located for each floor is ___mm. diameter.
- A.
A. 51 mm (2”)
- B.
B. 76 mm (3”)
- C.
C. 38 mm (1 1/2”)
- D.
D. 64 mm (2 1/2”)
- 84.1. The minimum height of fire service connection from the grade line is ____ cms.
- A.
A. 50 cms.
- B.
B. 100 cms.
- C.
C. 46 cms.
- D.
D. 35 cms.
- 85.1. The maximum horizontal developed length between the trap seal and the vertical vent inlet at the trap arm.
- A.
A. 6 feet
- B.
B. 5 feet
- C.
C. 4 feet
- D.
D. 3 feet
- 86.1. The maximum height of a fire service connection from the grade line is ______ cms.
- A.
A. 120 cms.
- B.
B. 130 cms.
- C.
C. 122 cms
- D.
D. 102 cms.
- 87.1. The location of a fire hose cabinet connected to a standpipe for buildings shall be at every floor level above the first floor at:
- A.
A. storeroom
- B.
B. inside a mechanical/electrical room
- C.
C. a landing of an enclosed stairway
- D.
D. at any private room or rentable space
- 88.1. The general term for the hot or cold water pipes containing potable water
- A.
A. water plumbing pipes
- B.
B. water distribution pipes
- C.
C. hot or cold water line
- D.
D. water supply pipes
- 89.1. Single lever valves used in kitchen sink and lavatory faucets or at shower valves has gain popularity in plumbing installation today. This is because these valves are beautiful and are maintenance-free. These valves work by the principle of a:
- A.
A. gate valve
- B.
B. angle valve
- C.
C. ball valve
- D.
D. globe valve
- 90.1. Minimum water delivery in liters per minute for an outlet of a wet standpipe at a residual pressure or 1.8 kilos per sq. mts.
- A.
A. 132 liters per minute
- B.
B. 112 liters per minute
- C.
C. 155 liters per minute
- D.
D. 126 liters per minute
- 91.1. It is customary that a full open type of valve is used in several locations in a water distribution system. Which location in the following list DOES NOT require one?
- A.
A. On every hose bibb
- B.
B. On water supplies to pressurized tank
- C.
C. On the water service pipe near the source connection
- D.
D. On the main water distribution pipe near the water service
- 92.1. In a water system with constant water supply supplying series of plumbing fixtures, water supply drop is experience when the fixtures in the series are simultaneously opened. Which poor design in the plumbing system causes this?
- A.
A. Choice in the system of water distribution
- B.
B. Insufficiency in the size of the water service and distribution pipe
- C.
C. Too many fixtures opened simultaneously
- D.
D. Use of PVC or other plastic pipes
- 93.1. In a water distribution system, locations such as supply pipe to every water heater requires a full open valve. Which of the following in the list is a full open valve?
- A.
A. check valve
- B.
B. ball valves
- C.
C. globe valve
- D.
D. angle valve
- 94.1. Branch vents are required to have at least a slope 1/4” /feet. The purpose of which is:
- A.
A. for convenience in installing the pipe
- B.
B. to facilitate air movement with lesser air resistance
- C.
C. for purposes of economy
- D.
D. to allow any waste to drain into the drain pipe
- 95.1. Any pipe in the plumbing system provided to ventilate a house drainage system and to prevent trap siphonage and back pressure.
- A.
A. waste pipe
- B.
B. vent pipe
- C.
C. soil pipe
- D.
D. house trap
- 96.1. A vent used in a battery of plumbing fixtures where the vent is installed in front of the last fixture of the battery.
- A.
A. yoke vent
- B.
B. circuit vent
- C.
C. stack vent
- D.
D. relief vent
- 97.1. A type of water pump with its pump motor installed on the surface attached to a lift and push rod to activate a submerged piston.
- A.
A. reciprocation pump
- B.
B. sump pump
- C.
C. jack pump
- D.
D. centrifugal pump
- 98.1. A type of pump which delivers high water discharge with high pressure drawn from a shallow source like a cistern, best suited as fire pump or transfer pump. The pump motor is installed on the surface for easy maintenance coupled with a shaft to turn the impellers, which is submerged below.
- A.
A. centrifugal pump
- B.
B. submersible pump
- C.
C. jet pump
- D.
D. turbine pump
- 99.1. A type of pump which comprises essentially an impeller or set of vanes enclosed in a housing or casing close coupled with the pump motor. Its fundamental principle is it adds energy in the form of velocity to an already flowing liquid.
- A.
A. reciprocating pump
- B.
B. centrifugal pump
- C.
C. piston pump
- D.
D. turbine pump
- 100.1. A type of pump for driven well from 150 ft to 200 ft which works by a principle of venturi where water of high pressure is pump into the well to draw water upwards through the return pipe.
- A.
A. submersible pump
- B.
B. jet pump
- C.
C. jack or piston pump
- D.
D. reciprocating pump
- 101.1. A term used for a pipe extension of not more than 2 feet in length, installed at any stack or branch of a plumbing rough-in for the purpose future tap.
- A.
A. tail piece
- B.
B. branch
- C.
C. clean out
- D.
D. stub out
- 102.1. A suitable and economical type of water pump for a 200 ft. driven wall to deliver 10gpm against 200 ft. The Develop Height (TDH) where the motor and pump is located is at the surface.
- A.
A. sump pump
- B.
B. jet pump
- C.
C. submersible pump
- D.
D. turbine pump
- 103.1. A slow draining of water from a fixture down a plumbing system indicates a poor venting system. This poor venting system is caused by:
- A.
A. Over loaded fixture unit in the soil stack
- B.
B. Change in the atmospheric pressure in the pipe
- C.
C. Wrong choice of vent type
- D.
D. Inadequate drain pipe
- 104.1. A residence with 12 family members requires 3.6 cu. meters of cold water daily with peak demand. What is the maximum hot water probable hourly demand?
- A.
A. 110 liters
- B.
B. 100 liters
- C.
C. 120 liters
- D.
D. 140 liters
- 105.1. A female GI threaded pipe reducer fitting use to connect a reducing branch from a main water distribution.
- A.
A. bell reducer
- B.
B. tee reducer
- C.
C. elbow reducer
- D.
D. coupling reducer
- 106.1. A female GI threaded pipe reducer fitting use to connect a reducing branch pipe at an angle.
- A.
A. Elbow reducer
- B.
B. Bushing reducer
- C.
C. Coupling reducer
- D.
D. Tee reducer
- 107.1. A female GI pipe reducer fitting used in a straight pipe connection where the fitting’s both ends are threaded inside
- A.
A. coupling reducer
- B.
B. bushing reducer
- C.
C. elbow reducer
- D.
D. tee reducer
- 108.1. A device used to control an incoming high water pressure into the water distribution system by mechanical means so as to bring it to a working pressure of 80 psi.
- A.
A. Pressure relief valve
- B.
B. Pressure reducer
- C.
C. Pressure reducing valve
- D.
D. Pressure regulator
- 109.. By gravity, water is distributed from overhead water tanks and is supported either by structural frames or on the roof decks. Fixtures are below the gravity tank. These elevated tanks are installed when normal water supply from main public service pipes is not frequent and when normal pressure from city main is not enough to force the water to the highest fixtures.
- A.
UPFEED SYSTEM
- B.
DOWN FEED SYSTEM
- C.
PRESSURE SYSTEM
- D.
DIRECT SYSTEM
- 110.. Water is distributed from the normal water pressure coming from the public water main, for low rise buildings.
- A.
UPFEED SYSTEM
- B.
DOWN FEED SYSTEM
- C.
PRESSURE SYSTEM
- D.
DIRECT SYSTEM
- 111.. A reservoir, tank or vessel for storing or holding water or other liquids
- A.
CISTERN/ CISTERN TANK
- B.
WATER TANK
- C.
WATER DAM
- D.
COFERDAM
- 112.. Water is treated by giving ________________ to kill the harmful bacteria present and to cure the turbid taste or “mud taste”, remove clay, salts, iron, etc. commonly used treating liquids is chlorine.
- A.
Chemical powder
- B.
Chemical treatments
- C.
Bacteria
- 113.. The vertical supply pipe which extends upward from one floor to the next is called a_________
- A.
Service pipe
- B.
Riser
- C.
Vent
- D.
Stack vent
- 114.-can be constructed with hand tools or power tools-depth of about 15 meters (50 ft)-can have the greatest diameter that a space may allow
- A.
DUG WELLS
- B.
DEEP WELLS
- C.
HOLE WELLS
- D.
FOX HOLE
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