MT 5

80問 • 2ヶ月前

問題一覧

The developed length between the trap of a water closet or similar fixture measured from the top of closet ring (closet flange) to inner edge of vent shall not exceed _____ m.

1.8

Interceptors for sand and similar heavy solids shall have a water seal of not less than _____ mm deep.

152

The sand interceptor shall have a minimum dimension of _____ m^2 for the net free opening of the inlet section.

0.2

No standpipe receptor for any clotheswasher shall extend more than _____ m nor less than 0.45 m above its trap.

0.8

Estimated sewage flow rate for Day Camps (no meals served)

56.8 LpD

Interceptors shall be of approved design and be of not less than _____ compartments

Lead pipe shall be supported at intervals not exceeding _____ m at centers with a rigid vertical back-up.

1.2

A _____ kpa air pressure may be substituted for the water test.

344.5

No part of the perimeter of the leaching bed shall be more than ____ from a distribution drain line.

0.9 m

When disposal fields are installed, a minimum of _____ of trench bottom shall be provided for each system exclusive of any hard pan, rock, clay, or other impervious formations.

14 sqm

Minimum thickness of lead safe pan in mm

1.6

The corresponding maximum trap loading pipe size for fixture unit 6 (answer in mm)

The arch or dome of seepage pit shall be an approved type one or two piece reinforced concrete slab of ____ minimum compressive strength.

2500 psi

The width of a continuous and indelibly colored stripe in copper tubing.

6.4 mm

Closet rings shall be tightly fastened with corrosive resistant fasteners up to the floor with top surface _____ mm above finish floor.

6.4

Estimated sewage flow rate for airports per employee

56.8 LpD

Cleanouts may be omitted on a horizontal drain line less than _____ m in length unless such line is serving sinks or urinals

1.5

The public sewer may be considered as not being available when such public sewer or any exterior drainage facility connected thereto is located more than _____ m from any proposed building or exterior drainage facility on any lot or premises thereat.

The diameter of an individual vent shall not be less than _____ mm nor less than 1/2 the diameter of the drain to which it is connected.

Each pressure relief valve shall be an approved automatic type with drain and each such relief valve shall be set at a pressure of not more than _____ kpa

1033

Tunnels shall have a clear height of _____ m above the pipe and shall be limited in length to 1/2 the depth of trench, with a maximum length of 2.4 meters.

0.6 m

Trenches shall be back-filled in thin layers of _____ m.

0.3

Each run of pipe which is more than _____ m in total developed length shall be provided with a cleanout.

Every abandoned building (house) sewer, or part thereof, shall be plugged or capped in an approved manner within _____ m of the property line.

1.5

Lead bends and lead traps shall not be less than ____ mm in wall thickness.

3.2

Limit stops shall be provided on such valves and shall be adjusted to deliver hot water with a maximum temperature of _____ deg. C

48.8

(Vertical wall areas for rainwater piping size) For two adjacent walls, add _____ percent of the total wall areas to the roof area.

If the highest group of the fixtures contains flushometer valves , the pressure for the group should not be less than _____.

103.42 kpa

Each seepage pit shall have a minimum sidewall of _____ below the inlet.

3 m

Each vent pipe or stack through roof shall extend its flashing all around and the stack vent shall terminate vertically not less than _____ m above the roof.

0.15

The yoke vent connection with the vent stack shall be placed not less than _____ m above the floor level.

An additional cleanout shall be provided on a horizontal line with an aggregate offset angle of direction exceeding _____ degrees.

135

(Septic Tank) The liquid depth shall be not less than ______ nor more than _____.

0.6 m to 1.8 m

Distance of Building or structures to Building Sewer (answer in meters)

0.60 m

Storage factor for fully equipped commercial kitchen- 16 hours operation

Backflow prevention for hot water over ____ deg. C shall be a listed type assembly.

43.3

Water pipes crossing sewer or drainage piping constructed of clay or materials, not approved for use within a building, shall be laid a minimum of _____ m above the sewer or drainpipe.

0.3

No galvanized wrought iron or galvanized steel pipe shall be used underground and shall be kept at least _____ mm above ground.

152

When the quantity of sewage exceeds the amount that can be disposed in a _____ meter of each line, a dosing tank shall be used.

152.4 m

457.2 m

34.5

The water shall be kept in the pipe system or in the portion under test for at least _____ minutes before inspection starts.

Allowable slope of a pipe having a diameter 203 mm or larger is _____%.

0.5

Fixture outlets shall not be connected to the horizontal excreta drainage piping system within _____ m of any vertical to horizontal change of direction of a stack containing suds-producing fixtures.

2.4

No underfloor cleanout in any residential occupancy shall be located more than _____ m from an access door, trap door or crawl hole.

6.1

For flush tank supplies, the available pressure may not be less than _____.

55.16 kpa

Depth of equivalent area of rectangular gutter = ____ x diameter.

0.392

Retention time of commercial kitchen waste

2.5 hours

Fixtures that also serves as a vent for not to exceed _____ fixtures.

The distance to vent of a trap arm 51 mm in diameter. (answer in meters)

1.52

Where the local water pressure is in excess of _____ kpa, an approved-type pressure regulator preceded by an adequately sized strainer shall be installed to reduce the pressure on the building side of the regulator to the required supply pressure.

551

The corresponding maximum trap loading pipe size for fixture unit 3 (answer in mm)

An exposed and readily accessible drawn brass tubing trap, not less than Gauge ___ may be used on fixtures discharging domestic sewage but shall exclude urine.

Distribution drain lines in leaching beds shall be more than ____ apart on centers.

1.8 m

Each grease trap shall have an approved water seal of not less than _____ mm.

Cleanout size of 64 mm pipe. (answer in mm)

Each vent opening shall terminate not less than _____ m above any openable window, door opening, air intake or vent shaft.

0.9

Wiped lead joints shall have an exposed surface on each side of a joint not less than _____ mm.

Cast iron fittings up to and including _____ mm in size when used in connection with potable water piping shall be galvanized.

In a water test, each section shall be filled with water, but no section shall be tested with less than _____ m head of water.

The minimum size of any pump discharge or any discharge pipe from a sump having a water closet connected thereto shall not be less than _____ mm diameter.

50.8

Distance of Septic Tank to to Water Supply wells.

15.2 m

The inlet compartment of any septic tank shall be not less than _____ of the total capacity of the tank.

2/3

When disposal fields and/or seepage pits are installed in sloping ground, the minimum horizontal distance between any part of the leaching system and ground surface shall be _____.

4.6 m

The minimum wall thickness of any steel tank shall be _____ mm.

2.8 mm

How many tests cocks does a Double Check Valve Backflow Prevention Assembly have?

Vertical vent pipes for outdoor installations shall extend to at least _____ m distant from any part of the roof that is used for other purposes.

Water closets shall be computed as _____ fixture units when determining septic tank size.

Access to each septic tank shall be provided by at least two manholes _____ in minimum dimension.

508 mm

Side walls of the septic tank shall exceed at least _____ above the liquid depth.

228.6 mm

Support trap arms in excess of _____ feet in length as close as possible to the trap.

Restaurant kitchen and other special-use sinks may be made of approved-type bonderized and galvanized sheet steel of not less than Gauge No. _____.

Water pipes and fittings with a lead content that exceed ___% shall be prohibited and not used in potable piping systems.

Water pipe joints shall be installed not less than _____ m away from sewer line in both directions.

Such tailpiece or connections shall be as short as possible and in no case shall exceed _____ m long.

0.6

Before placing filter material or drain lines in a prepared excavation, all smeared or compacted surfaces shall be removed from trenches by raking to a depth of _____ mm.

25.4 mm

All septic tank covers shall be capable of supporting an earth load of not less than _____ when the maximum coverage does not exceed 9m.

14.4 kpa

Where there is exposure to skin contamination with poisonous, infectious, or irritating materials, provide 1 lavatory for each _____ persons.

Minimum depth of filter materials under drain lines

304.8 mm

When seepage pits are used in combination with disposal fields, the filter material in the trenches shall terminate at least _____ from the pit excavation.

1.5 m

The vacuum breaker shall be installed at the discharge side of the flushometer valve with the critical level at least _____ mm.

152

YT1 Materials Engineer EXAM

ユーザ名非公開 · 100問 · 2ヶ月前

YT1 Materials Engineer EXAM