WorksheetsBUILDING UTILITIES
Total questions: 51
Worksheet time: 4mins
Water for rural domestic use is usually obtained from
Wells
City mains
Springs
Artesian wells
In this type of water system, water is supplied using the pressure generated from the elevated cold water tank
pump pressure system
gravity-fed system
overhead distribution
pneumatic tank distribution
A method where water is distributed through normal water pressure from public water main for use in low rise buildings
pneumatic tank method
up-feed method
down-feed method
none of them
A water distribution system in which no elevated storage is provided, and the required distribution pressures are maintained only by pumping facilities.
Indirect pressure distribution system
Direct-pressure distribution system
combination of both
none of them
The size of water service pipes is based on the maximum and minimum probable water demand, but in no case shall it be less than _____mm in diameter.
16mm diameter
25mm diameter
20mm diameter
32mm diameter
A gooseneck is installed in the individual water supply system
If there is less pressure from the main
. If there is a need to increase the pressure form the main
If the water sources is inefficient to supply the branches
If the flow of the water to the distribution pipe need to be throttled
Pipe clean out is a requirement
At the upper end of the fixture branch
At every turn of every sanitary branch
For every degree change of slope gradient
For situation “b” most of the time
What type of trap is used to connect the water closet to the horizontal waste pipe?
P-trap
S-trap
drum trap
none
This valve is operated by lowering the disk, until it presses firmly and evenly on the valve seat and thus cuts off the flow of water; by turning the valve stem to the left, thus raising the valve disk from its seat, the water is turned on.
lift check valve
swing check valve
angle valve
globe valve
These are used for control, isolation and repair of the water distribution system.
Control and valves
pipes and fittings
risers and fixture branch
union
A fixture unit equal to one cubic foot per minute is
Used for sizing plumbing jobs in a plumbing
Sewage and liquid waste from a lower level to a point of discharge
Used to size fixture vent
Used to know the gpm of water
The location of a cleanout shall be at every change of horizontal direction of more than
22.5 degrees
67.5 degrees
45 degrees
90 degrees
Per the National Plumbing Code, the minimum number of plumbing fixtures and fittings that comprise a plumbing unit is:
11
12
13
14
Based on Drainage Fixture Unit Values, the maximum number of fixture unit for plumbing trap with a size of 1-1/4" diameter is
0
1
2
3
Air is needed to ventilate the VSTR this is important so that a
Pressure inside the vent pipe normalized
Pressure can penetrate the vacuum of the air present inside the pipe
Pressure build up inside the pipe
None of the above
A type of standpipe that is filled with water at all times, is connected to a permanent water supply that is capable of meeting flow and pressure requirements.
Automatic-Dry standpipe
Manual wet standpipe
Automatic-wet standpipe
Manual dry standpipe
In fire protection, a detector that uses low melting point solder or metal that expands when exposed to heat to detect fire
Infrared flame detector
heat detector
Smoke detector
ionization smoke detector
In fire protection, a flame detector that responds to the ultra – violet from flames
infrared flame detector
heat detector
Smoke detector
ionization smoke detector
In fire suppression system, a type of system when piping network contains water under pressure at all time. It is most widely used system since water is being delivered faster than other systems
Dry pipe system
Wet pipe system
pre–action system
deluge system
A wye connection used on fire lines so that two lines of hose may be connected to fire hydrant or to the same nozzle
Tee connection
Siamese connection
Cross connection
twin connection
In storm drain system, it is used to prevent aggregates, debris and other unwanted objects from entering the drainage system?
Trap
Catch basin
Seal
strainer
Where are the storm sewer usually placed?
Under the side walk on narrow road and under the road on wide road
Near the curb
At the center of the road
The principal vent pipe of a system to which vent connections can be made
Branch vent
main vent
vent
What is the smallest gutter size?
12”
24”
36”
48”
Minimum slope of horizontal pipes?
2%
3%
4%
5%
What is not a rule of thumb in designing drainage?
As much as possible, pipes must run in a straight line.
Underground drainage line should be on top of compacted soil.
It should be underneath the driveway.
None of the above
In a series circuit arrangement of 3 batteries rated at 9 volts each, what will be the voltage for the whole circuit?
18 volts
36 volts
27 volts
45 volts
What is the resistance in a circuit with a line voltage of 240V and an ampere rating of 52.17A?
4.41 ohms
4.22 ohms
4.60 ohms
4.025 ohms
A device for making, or breaking, or rearranging the connections of an electric circuit
Switch
Switchboard
switchgear
all of the above
An electromagnetically operated signaling apparatus that indicates whether a current is flowing or has flowed in one or more circuits
Pager
Buzzer
Annunciator
Arrester
A synchronous generator of alternating current that changes mechanical power into electrical power
Alternator
Accelerator
Motor
UPS
Which is the better option in considering the placement of elevators in a high rise building?
at service core
at center of building
at building envelope particularly at the side
at the rear of the building
What type of escalator pattern Is appropriate for a mall?
parallel arrangement
criss-cross pattern
combination
does not matter
A type of fire alarm system usually designed to produce four rounds of signals to identify the location of fire or the initiating device.
automatic system
zoned system
supervised system
coded system
An elevator component that provides adequate traction at the sheave for car lifting, reduce size of traction machine, and reduce power demand and energy cost
sheave
counterweights
traction
all of them
The maximum angle of inclination of an escalator to the horizontal floor level is ___ degrees.
25 degrees
35 degrees
30 degrees
40 degrees
What should be installed at the outside perimeter of an air conditioning duct to lessen noise and vibration?
Vibration isolator
paint
foam insulation
concrete pad
Dampers are installed inside air boot fitting to
to remove excess airflow
to stop air flow
to redirect air flow
regulate the amount of cool air for even distribution to outlets
A type of air register to used in ceiling with four-way output is
exhaust fan
diffuser
duct
cassette type register
the air curtain is installed and located at the buildings entry/exit for what reason?
to enhance the cooling system of Acs
to maintain the cooling system inside a room
to serve as an exhaust for mechanical ventilation
to act as a ventilator
Air distribution equipment intended for moving air at comparatively high pressures and are commonly used in duct systems
centrifugal fan
propeller fan
cooling fan
air outlet
Which room is shaped for speech?
To enhance loudness in room geometries, the designer must:
minimize the distance between source and receiver
minimize the total area of room surface
maximize early arriving direct sound
all of them
What thickness of fiberglass panel absorbs sound above 500 Hz better?
1''
2''
3''
4''
The intensity of sound depends on:
Amplitude of vibrations of the source.
Surface area of the vibrating source.
Density of the medium in which sound travels form the source.
All of the above
Reverberation time is influenced by:
Volume of the room
Sound absorbing qualities of the room’s surfaces
Number of people and furniture in the room
. all of the above
A room measures 15m x 7m x 3.6m high and the design illumination is 200 lux on the working plane (0.85 metres above the floor). The utilization factor is 0.5 and the maintenance factor is 0.8. If the Lighting Design Lumens output of each fitting is 2720 lumens, calculate the number of lamps required.
(AREA X LUX)/LUM(MF)(UF)
20 lamps
22 lamps
24 lamps
25 lamps
How many lumens are there in one candlepower?
12.57 lumens
13.57 lumens
14.57 lumens
15.57 lumens
We generally associate five basic colors with the visible portion of the electromagnetic spectrum. These are:
red, yellow. Green, blue, indigo
red, orange, green, indigo, violet
red, yellow, green, blue, violet
all of them
A system where light sources are shielded by a panel parallel to the wall and attached to the ceiling to distribute light downwards over the wall. This is considered as direct lighting.
cornice lighting
valance lighting
cove lighting
60% to 90% of the light is directed upwards; 40% to 10% downwards.
semi-indirect
indirect
general diffuse
