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SP PB

SP PB
100問 • 20日前
  • ユーザ名非公開
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    問題一覧

  • 1

    This action in the self-purification of stream occurs due to hydrolysis of organic matter settled at the bottom either chemically or biologically.

    Reduction

  • 2

    Hose outlets must not exceed a distance of _____ in nonsprinklered buildings

    40 m

  • 3

    Why is stormwater management important in urban areas?

    to limit peak discharge for controlled runoff

  • 4

    An approved pressure reduction device shall be permanently installed where static pressure of a wet standpipe exceeds _____.

    6.9 bar

  • 5

    According to Article 3.2.2.2 of PD 1096, what scope of work in plan preparation for new sanitary installation with more than 20 units does sanitary engineer differed with a registered Master Plumber?

    Detail drawing of a septic tank in the absence of disposal field

  • 6

    How many years in interval should the septic tanks be desludged?

    3 to 5 years

  • 7

    In piping system, C can represent different concepts. Which of the following is not a representation of C?

    pipe schedule

  • 8

    Which of the following material composition describes a 95-5 solder?

    95% tin; 5% antimony

  • 9

    Within how many years following the effectivity of the RA 9275, must the vested agency connect the existing sewage lines to the available sewerage systems?

    5 years

  • 10

    If hot water is constantly used in the drain, what can happen?

    stoppage would eventually occur because of accumulated coatings of grease

  • 11

    For ASTM A106, which of the following is true?

    The tensile strength of Grade C is 70,000 psi.

  • 12

    Which of the following testing methods is the most recommended for a sanitary piping system?

    Hydrostatic test

  • 13

    Water is taken from a drilled well or underground water and involves individual special mechanical equipment.

    Indirect Pressure Distribution

  • 14

    What is the common kitchen sink depth?

    9"

  • 15

    Considers the building density in the locality and the flammability of the structures and its contents.

    Fire Code

  • 16

    Preliminary treatment removes about _____.

    10% of total inorganic solid

  • 17

    Drain cleaner that is efficient but very corrosive, dangerous, explosive, and can damage health.

    Sulfuric Acid

  • 18

    Which system of collection of sewage is a dry system?

    Conservancy system

  • 19

    Which is a correct design of the wet-dry well pumping station?

    the pump is in the dry well, receiving sewage from the wet well

  • 20

    What is a term for room equipped with a shower, bathtub or combination shower and bathtub?

    Bathroom

  • 21

    What is the pressure in cylinders charged with oxygen at 21 deg. C?

    2000 psi

  • 22

    During the retention period in the septic tank, about 60% to 70% of the suspended solid is removed largely by ____ to form a semiliquid substance called sludge.

    Sedimentation

  • 23

    The most toxic gas for a maintenance person in septic tank.

    hydrogen sulfide

  • 24

    What should be the capacity of storage tank relative to the average day demand of the community?

    25%

  • 25

    Water purification is the method that removes one or more materials that make the water unsuitable for given use. Which of the following is not a method in purification?

    Sedimentation

  • 26

    What should you not consider when assessing the potability of spring water?

    Temperature and Flow Rate

  • 27

    Determine the TDH of a system, wherein a pump with efficiency of 85% delivers a water flow rate of 60 gallons per minute. The power consumption is 6 hp.

    336 ft

  • 28

    What happens when stormwater drainage reaches its full capacity?

    Hydraulic grade line rises

  • 29

    Water supply demand for shower head.

    0.019

  • 30

    Which of the following is not true regarding the power consumption of pumps?

    warm fluid temperature requires more pumping power

  • 31

    The coarse screen is normally kept inclined at about 45° to 60° to the horizontal, so as to ____.

    increase the opening area to reduce the flow velocity

  • 32

    Which of the following will likely prevent infiltration in a sanitary sewer system?

    Tightened and leak-free joints in the sewer pipe

  • 33

    What is the source of all water supply?

    Rain

  • 34

    What is the recommended size of service pipe approved by MWSS for a 2 storey residential house?

    1" or 25 mm

  • 35

    What does the allowable bearing capacity of the soil refer to?

    the amount of load the soil can take without experiencing shear failure or exceeding the allowable amount of settlement

  • 36

    A specialized pipe fitting installed in the suction pump pipe inlet for water extraction from a tank, and helps reduce cavitation.

    vortex inhibitor

  • 37

    An externally threaded usually with square head; used to close the end of pipe.

    plug

  • 38

    The variations in pressure between the water main and the outlet end of the water service.

    Pressure loss

  • 39

    A water heater supported from the earth shall rest on level concrete or other approved base extending not less than _____ above the adjoining ground level.

    76 mm

  • 40

    This pipe is made of either vitrified clay or concrete pipe laid in an open trench. It is installed not more than 3 meters below the street grade.

    Tributary Sewer

  • 41

    No artesians, deep or shallow well shall be constructed within _____ from any source of pollution.

    25 meters

  • 42

    What is that height always considered in designing water supply system in medium and high-rise buildings?

    Height of the highest fixture

  • 43

    A term which refers to waste coming from domestic operations without fecal contamination.

    Sullage

  • 44

    The sewage still containing dissolved oxygen is called ____.

    Fresh

  • 45

    Minimum volume of water an interior wet standpipe should provide.

    50 gpm

  • 46

    What is the basis for computing the demand for flushing using rainwater harvesting?

    occupancy of the building

  • 47

    What potential danger can arise from stormwater?

    rat

  • 48

    What is a contraption invented to dispose leftovers straight from the kitchen sink?

    Garbage Disposer

  • 49

    For a drinking water, what is the Maximum Allowable Limit (MAL) of the Total Hardness?

    300 mg/L

  • 50

    What is the purpose of drainfield in septic systems?

    Filter wastewater

  • 51

    Where is the best location to put soil pipes?

    Pipe Chase

  • 52

    What is the maximum height of a fire hose connection and hose stations from the floor?

    1.5 m

  • 53

    What is the use of pressure relief valve?

    prevent the excess pressure build up

  • 54

    Which of the following are methods of trenchless sewer repair?

    Pipe Lining and Pipe Bursting

  • 55

    Instrument used to measure the water flow rate.

    Venturi meter

  • 56

    Which is not an advantage of zeolite process?

    increase alkalinity

  • 57

    Purpose of compacted backfill in underground sewer pipe

    To prevent pipe movement and collapse

  • 58

    Which of the following may not use reclaimed water?

    shower

  • 59

    The reduction of pressure at the outlet of a pressure reducing valve, when downstream fixtures are open to allow flow through the PRV.

    Fall-off pressure

  • 60

    This term can be associated as Ground Water.

    Horizontal Tunnel

  • 61

    If pumping water level is less than 6 meters, what is the suitable type of pump selection?

    Centrifugal pump

  • 62

    This is less aesthetic than aeration but more certain oxidation process. It is commonly used in cooling tower treatment and has very wide range of treatment application.

    ozonation

  • 63

    The removal of the floatable solids and liquids (scum) like oil and grease so that the wastewater can be further processed

    skimming

  • 64

    The Intensity-Duration-Frequency curve is important to _____.

    evaluate risks of extreme rainfall

  • 65

    When a ship sails from river into sea, what happens?

    The ship rises a little.

  • 66

    Maximum height of urinal lip according to BP 344

    0.48 m

  • 67

    RA 4850 refers to _____.

    An Act Creating the Laguna Lake Development Authority

  • 68

    This filter is made of kieselguhr, shaped as hollow candles fitted to a metal nozzle.

    Berkefeld filter

  • 69

    Which of the following can reduce the impurities of stormwater runoff?

    reducing parking spaces

  • 70

    Which is not true about ductile iron pipe?

    Ductile iron has a lower carbon content than steel, ranging from 1.5 to 1.9%.

  • 71

    This is a storage basin that requires a large amount of space. It has an orifice at the bottom of the basin.

    Detention Basin

  • 72

    What is the minimum recommended slope for horizontal drainage line?

    1/4 in per ft

  • 73

    What is the most common plumbing fixture wherein back siphonage usually occur?

    water closet

  • 74

    Which is not a significant parameter to be monitored for accommodation and food services wastewater?

    pH level

  • 75

    In which installations is a sediment bucket not critical?

    Laundry area

  • 76

    Rectangular pieces of plastic or concrete placed underneath the end of the downspout.

    Splash Block

  • 77

    Which is correct about Net Positive Suction Head?

    The minimum NPSH required is the value needed to prevent cavitation.

  • 78

    Harmful bacteria can be found in airconditioning systems. Which of the following bacteria is commonly not found in such systems?

    Helicobacter pylori

  • 79

    Water makes up about _____ of the Earth's surface.

    71%

  • 80

    What is not a type of lavatory?

    close-coupled

  • 81

    Agency that is tasked to set the criteria in the discharge of sanitary sewage from buildings directly into the nearest sanitary sewer.

    DENR

  • 82

    This velocity flowmeter measures the flow rate of a liquids, gases, and steam by placing an obstruction in the flow path, creating fluctuations

    vortex flow meter

  • 83

    Which type of pump is designed to handle rocks and other solids?

    Trash pumps

  • 84

    The Chief Superintendent leader of the Technical Working Group for the RIRR of RA 9514.

    Leonides P. Perez

  • 85

    Why do combined sewer outfalls discharge on surface waters and not on treatment plants?

    To reduce the risk of overloading wastewater treatment works

  • 86

    Water flows through a globe valve with velocity of 3.2 m/s. The measured head loss is 4.5 meters. What is the resistance coefficient K of the globe valve?

    8.62

  • 87

    Which of the following is not true about SSO?

    SSO can occur when there is a backflow from treatment plant.

  • 88

    Which pathogen is commonly associated with outbreaks in water systems, such as cooling towers, hot tubs, and showerheads?

    Legionella bacteria

  • 89

    For stormwater management, which of the following is the most important consideration?

    The use of stilling basin and level spreaders as spillway

  • 90

    A leak from a faucet comes out in separate drops. Which of the following is the main cause of this phenomenon?

    Surface tension

  • 91

    These are liquids having flash points below 37.80° C

    Flammable Liquids

  • 92

    Which is not a component of sanitary drainage?

    curb inlet

  • 93

    The length of time water supply is held in direct contact with a treating agent

    Contact time

  • 94

    A modified activated sludge biological treatment process that utilizes long solids retention times (SRTs) to remove biodegradable organics

    oxidation ditch

  • 95

    Which pipe material is the best for underground use water supply?

    HDPE

  • 96

    What is the approximate volume increase in percentage when water freezes and becomes ice?

    9%

  • 97

    It represents the amount of water vapor present in the air relative to the maximum amount the air can hold at a given temperature.

    Relative humidity

  • 98

    When the pipe passes under or runs through the wall, what should be considered?

    breakage

  • 99

    Which is the best way for bleeding air in hydronic heating systems?

    Using the air vent in the highest opening

  • 100

    What are the possible effects when you treat water with alum?

    acidity and permanent hardness

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    問題一覧

  • 1

    This action in the self-purification of stream occurs due to hydrolysis of organic matter settled at the bottom either chemically or biologically.

    Reduction

  • 2

    Hose outlets must not exceed a distance of _____ in nonsprinklered buildings

    40 m

  • 3

    Why is stormwater management important in urban areas?

    to limit peak discharge for controlled runoff

  • 4

    An approved pressure reduction device shall be permanently installed where static pressure of a wet standpipe exceeds _____.

    6.9 bar

  • 5

    According to Article 3.2.2.2 of PD 1096, what scope of work in plan preparation for new sanitary installation with more than 20 units does sanitary engineer differed with a registered Master Plumber?

    Detail drawing of a septic tank in the absence of disposal field

  • 6

    How many years in interval should the septic tanks be desludged?

    3 to 5 years

  • 7

    In piping system, C can represent different concepts. Which of the following is not a representation of C?

    pipe schedule

  • 8

    Which of the following material composition describes a 95-5 solder?

    95% tin; 5% antimony

  • 9

    Within how many years following the effectivity of the RA 9275, must the vested agency connect the existing sewage lines to the available sewerage systems?

    5 years

  • 10

    If hot water is constantly used in the drain, what can happen?

    stoppage would eventually occur because of accumulated coatings of grease

  • 11

    For ASTM A106, which of the following is true?

    The tensile strength of Grade C is 70,000 psi.

  • 12

    Which of the following testing methods is the most recommended for a sanitary piping system?

    Hydrostatic test

  • 13

    Water is taken from a drilled well or underground water and involves individual special mechanical equipment.

    Indirect Pressure Distribution

  • 14

    What is the common kitchen sink depth?

    9"

  • 15

    Considers the building density in the locality and the flammability of the structures and its contents.

    Fire Code

  • 16

    Preliminary treatment removes about _____.

    10% of total inorganic solid

  • 17

    Drain cleaner that is efficient but very corrosive, dangerous, explosive, and can damage health.

    Sulfuric Acid

  • 18

    Which system of collection of sewage is a dry system?

    Conservancy system

  • 19

    Which is a correct design of the wet-dry well pumping station?

    the pump is in the dry well, receiving sewage from the wet well

  • 20

    What is a term for room equipped with a shower, bathtub or combination shower and bathtub?

    Bathroom

  • 21

    What is the pressure in cylinders charged with oxygen at 21 deg. C?

    2000 psi

  • 22

    During the retention period in the septic tank, about 60% to 70% of the suspended solid is removed largely by ____ to form a semiliquid substance called sludge.

    Sedimentation

  • 23

    The most toxic gas for a maintenance person in septic tank.

    hydrogen sulfide

  • 24

    What should be the capacity of storage tank relative to the average day demand of the community?

    25%

  • 25

    Water purification is the method that removes one or more materials that make the water unsuitable for given use. Which of the following is not a method in purification?

    Sedimentation

  • 26

    What should you not consider when assessing the potability of spring water?

    Temperature and Flow Rate

  • 27

    Determine the TDH of a system, wherein a pump with efficiency of 85% delivers a water flow rate of 60 gallons per minute. The power consumption is 6 hp.

    336 ft

  • 28

    What happens when stormwater drainage reaches its full capacity?

    Hydraulic grade line rises

  • 29

    Water supply demand for shower head.

    0.019

  • 30

    Which of the following is not true regarding the power consumption of pumps?

    warm fluid temperature requires more pumping power

  • 31

    The coarse screen is normally kept inclined at about 45° to 60° to the horizontal, so as to ____.

    increase the opening area to reduce the flow velocity

  • 32

    Which of the following will likely prevent infiltration in a sanitary sewer system?

    Tightened and leak-free joints in the sewer pipe

  • 33

    What is the source of all water supply?

    Rain

  • 34

    What is the recommended size of service pipe approved by MWSS for a 2 storey residential house?

    1" or 25 mm

  • 35

    What does the allowable bearing capacity of the soil refer to?

    the amount of load the soil can take without experiencing shear failure or exceeding the allowable amount of settlement

  • 36

    A specialized pipe fitting installed in the suction pump pipe inlet for water extraction from a tank, and helps reduce cavitation.

    vortex inhibitor

  • 37

    An externally threaded usually with square head; used to close the end of pipe.

    plug

  • 38

    The variations in pressure between the water main and the outlet end of the water service.

    Pressure loss

  • 39

    A water heater supported from the earth shall rest on level concrete or other approved base extending not less than _____ above the adjoining ground level.

    76 mm

  • 40

    This pipe is made of either vitrified clay or concrete pipe laid in an open trench. It is installed not more than 3 meters below the street grade.

    Tributary Sewer

  • 41

    No artesians, deep or shallow well shall be constructed within _____ from any source of pollution.

    25 meters

  • 42

    What is that height always considered in designing water supply system in medium and high-rise buildings?

    Height of the highest fixture

  • 43

    A term which refers to waste coming from domestic operations without fecal contamination.

    Sullage

  • 44

    The sewage still containing dissolved oxygen is called ____.

    Fresh

  • 45

    Minimum volume of water an interior wet standpipe should provide.

    50 gpm

  • 46

    What is the basis for computing the demand for flushing using rainwater harvesting?

    occupancy of the building

  • 47

    What potential danger can arise from stormwater?

    rat

  • 48

    What is a contraption invented to dispose leftovers straight from the kitchen sink?

    Garbage Disposer

  • 49

    For a drinking water, what is the Maximum Allowable Limit (MAL) of the Total Hardness?

    300 mg/L

  • 50

    What is the purpose of drainfield in septic systems?

    Filter wastewater

  • 51

    Where is the best location to put soil pipes?

    Pipe Chase

  • 52

    What is the maximum height of a fire hose connection and hose stations from the floor?

    1.5 m

  • 53

    What is the use of pressure relief valve?

    prevent the excess pressure build up

  • 54

    Which of the following are methods of trenchless sewer repair?

    Pipe Lining and Pipe Bursting

  • 55

    Instrument used to measure the water flow rate.

    Venturi meter

  • 56

    Which is not an advantage of zeolite process?

    increase alkalinity

  • 57

    Purpose of compacted backfill in underground sewer pipe

    To prevent pipe movement and collapse

  • 58

    Which of the following may not use reclaimed water?

    shower

  • 59

    The reduction of pressure at the outlet of a pressure reducing valve, when downstream fixtures are open to allow flow through the PRV.

    Fall-off pressure

  • 60

    This term can be associated as Ground Water.

    Horizontal Tunnel

  • 61

    If pumping water level is less than 6 meters, what is the suitable type of pump selection?

    Centrifugal pump

  • 62

    This is less aesthetic than aeration but more certain oxidation process. It is commonly used in cooling tower treatment and has very wide range of treatment application.

    ozonation

  • 63

    The removal of the floatable solids and liquids (scum) like oil and grease so that the wastewater can be further processed

    skimming

  • 64

    The Intensity-Duration-Frequency curve is important to _____.

    evaluate risks of extreme rainfall

  • 65

    When a ship sails from river into sea, what happens?

    The ship rises a little.

  • 66

    Maximum height of urinal lip according to BP 344

    0.48 m

  • 67

    RA 4850 refers to _____.

    An Act Creating the Laguna Lake Development Authority

  • 68

    This filter is made of kieselguhr, shaped as hollow candles fitted to a metal nozzle.

    Berkefeld filter

  • 69

    Which of the following can reduce the impurities of stormwater runoff?

    reducing parking spaces

  • 70

    Which is not true about ductile iron pipe?

    Ductile iron has a lower carbon content than steel, ranging from 1.5 to 1.9%.

  • 71

    This is a storage basin that requires a large amount of space. It has an orifice at the bottom of the basin.

    Detention Basin

  • 72

    What is the minimum recommended slope for horizontal drainage line?

    1/4 in per ft

  • 73

    What is the most common plumbing fixture wherein back siphonage usually occur?

    water closet

  • 74

    Which is not a significant parameter to be monitored for accommodation and food services wastewater?

    pH level

  • 75

    In which installations is a sediment bucket not critical?

    Laundry area

  • 76

    Rectangular pieces of plastic or concrete placed underneath the end of the downspout.

    Splash Block

  • 77

    Which is correct about Net Positive Suction Head?

    The minimum NPSH required is the value needed to prevent cavitation.

  • 78

    Harmful bacteria can be found in airconditioning systems. Which of the following bacteria is commonly not found in such systems?

    Helicobacter pylori

  • 79

    Water makes up about _____ of the Earth's surface.

    71%

  • 80

    What is not a type of lavatory?

    close-coupled

  • 81

    Agency that is tasked to set the criteria in the discharge of sanitary sewage from buildings directly into the nearest sanitary sewer.

    DENR

  • 82

    This velocity flowmeter measures the flow rate of a liquids, gases, and steam by placing an obstruction in the flow path, creating fluctuations

    vortex flow meter

  • 83

    Which type of pump is designed to handle rocks and other solids?

    Trash pumps

  • 84

    The Chief Superintendent leader of the Technical Working Group for the RIRR of RA 9514.

    Leonides P. Perez

  • 85

    Why do combined sewer outfalls discharge on surface waters and not on treatment plants?

    To reduce the risk of overloading wastewater treatment works

  • 86

    Water flows through a globe valve with velocity of 3.2 m/s. The measured head loss is 4.5 meters. What is the resistance coefficient K of the globe valve?

    8.62

  • 87

    Which of the following is not true about SSO?

    SSO can occur when there is a backflow from treatment plant.

  • 88

    Which pathogen is commonly associated with outbreaks in water systems, such as cooling towers, hot tubs, and showerheads?

    Legionella bacteria

  • 89

    For stormwater management, which of the following is the most important consideration?

    The use of stilling basin and level spreaders as spillway

  • 90

    A leak from a faucet comes out in separate drops. Which of the following is the main cause of this phenomenon?

    Surface tension

  • 91

    These are liquids having flash points below 37.80° C

    Flammable Liquids

  • 92

    Which is not a component of sanitary drainage?

    curb inlet

  • 93

    The length of time water supply is held in direct contact with a treating agent

    Contact time

  • 94

    A modified activated sludge biological treatment process that utilizes long solids retention times (SRTs) to remove biodegradable organics

    oxidation ditch

  • 95

    Which pipe material is the best for underground use water supply?

    HDPE

  • 96

    What is the approximate volume increase in percentage when water freezes and becomes ice?

    9%

  • 97

    It represents the amount of water vapor present in the air relative to the maximum amount the air can hold at a given temperature.

    Relative humidity

  • 98

    When the pipe passes under or runs through the wall, what should be considered?

    breakage

  • 99

    Which is the best way for bleeding air in hydronic heating systems?

    Using the air vent in the highest opening

  • 100

    What are the possible effects when you treat water with alum?

    acidity and permanent hardness