ARE 5.0 PROJECT DEVELOPMENT & DOCUMENTATION –
NCARB WITH ALL CORRECT & 100% VERIFIED ANSWERS |
ALREADY GRADED A+
A holed hydraulic elevator uses... ✔Correct Answer-1. car support rails
2. elevator pit
3. piston and underground cylinder
An elevator pit is an element of what types of elevators? ✔Correct Answer-1. traction
2. hydraulic
Hoisting cables are components of what type of elevator? ✔Correct Answer-Traction
Counterweights are components of what type of elevator? ✔Correct Answer-Traction
Is the machine room for a traction elevator above or below the hoistway? ✔Correct Answer-
Usually above, but it could be below.
What is the technical term for an elevator shaft? ✔Correct Answer-Hoistway
Which type of elevator has the longest lifecycle? ✔Correct Answer-Gearless traction
A residential elevator is limited to _______ ft. of travel. ✔Correct Answer-20
A commercial hydraulic elevator is limited to _______ ft. of travel. ✔Correct Answer-60
For preliminary sizing of an all air, or air-water HVAC system, what percentage of the floor area
should be allotted? ✔Correct Answer-3% to 10%.
Why should mechanical equipment (HVAC) rooms be located in the basement? ✔Correct
Answer-For smoke control in a fire. (Smoke rises and will move away from the equipment).
In an HVAC system, frictional resistance between air and duct walls is called _______, and is
measured in _______. ✔Correct Answer-static head, and is measured in inches of water.
Longer ductwork = more _______. ✔Correct Answer-friction
How is friction between air and duct walls overcome? ✔Correct Answer-By enlarging ducts, or
by increasing the size of fans.
,For initial sizing of both supply and return ducts, allow a cross sectional area of _______ sq. ft.
to _______ sq. ft. for every 10,000 square. ft. of floor space. ✔Correct Answer-10 sq. ft to 20
sq. ft.
What does an hvac mixing box do? ✔Correct Answer-Controls air flow from the main supply
line, by adjusting quantity and temperature, while reducing velocity and noise.
What does VAV stand for? ✔Correct Answer-Variable Air Volume.
What does a VAV box do? ✔Correct Answer-Receives air at a constant temperature, then
varies the air flow rate into the room to adjust the temperature.
A plenum is... ✔Correct Answer-...the space between a suspended ceiling and the structural
floor above.
How much of the plenum space does a suspended ceiling usually take up? ✔Correct Answer-2
inches
Thermostats are normally located _______ inches above the floor. ✔Correct Answer-48
When may a thermostat be located 44 inches above the floor. ✔Correct Answer-For
accessibility, when an obstruction extends 20 in. to 25 in. from the wall.
Where are supply registers best placed? ✔Correct Answer-Near areas of heat loss or gain,
such as windows.
Where are return air grilles best placed? ✔Correct Answer-Far from the supply registers.
How much pressure is required to raise water 1 foot. ✔Correct Answer-0.433 psi.
List the three grades of copper pipe from thickest to thinnest. ✔Correct Answer-K, L, and M.
What type of water pipe material is manufactured in continuous lengths on spools, so it can be
cut to length, eliminating the need for fittings. ✔Correct Answer-PEX (cross-linked
polyethylene)
Why is PEX more environmentally friendly than copper? ✔Correct Answer-Because of
copper's environmentally intensive extraction and manufacturing processes.
How is PEX pipe connected? ✔Correct Answer-By compression and crimping with a special
tool.
In regards to plumbing, what is demand load? ✔Correct Answer-The flow rate that would be
needed if every fixture in the system were in use at the same time.
, How is demand load calculated? ✔Correct Answer-By adding the load values (found on a
chart) of all fixtures in the system.
What are the two types of bolted connections? ✔Correct Answer-1. Bearing Type
2. Slip Critical
Which blocks sound better, a wall with a high STC or a wall with a low STC? ✔Correct Answer-
A high STC
What is a bearing type connection? ✔Correct Answer-The load is actually resting (at least
partially) on the bolt, because the bolt holes are larger than the bolt and the pieces of steel
being connected have shifted until they are bearing against the bolt.
What is a slip-critical connection? ✔Correct Answer-A connection where the entire load is
carried by the friction of the two pieces which have been bolted together, and the bolt carries
no loat at all.
What are the codes used for the conditions of use of a bolted connection? ✔Correct Answer-
SC: slip critical
N: bearing connection
X: bearing connection with threads EXCLUDED from the shear plane.
S: single shear
D: double shear
The bottoms of wood joists must be _______ inches above exposed ground. ✔Correct
Answer-18 inches
The bottoms of wood girders must be _______ inches above exposed ground. ✔Correct
Answer-12 inches
The ends of wood girders entering masonry must have a _______ inch air space on the ends,
tops and sides. ✔Correct Answer-1/2 inch
Wood used for construction of permanent structures, located less than _______ inches from
the ground must be treated or naturally decay resistant. ✔Correct Answer-6 inches
Air entrainment concrete admixture increases... ✔Correct Answer-freeze/thaw durability.
NCARB WITH ALL CORRECT & 100% VERIFIED ANSWERS |
ALREADY GRADED A+
A holed hydraulic elevator uses... ✔Correct Answer-1. car support rails
2. elevator pit
3. piston and underground cylinder
An elevator pit is an element of what types of elevators? ✔Correct Answer-1. traction
2. hydraulic
Hoisting cables are components of what type of elevator? ✔Correct Answer-Traction
Counterweights are components of what type of elevator? ✔Correct Answer-Traction
Is the machine room for a traction elevator above or below the hoistway? ✔Correct Answer-
Usually above, but it could be below.
What is the technical term for an elevator shaft? ✔Correct Answer-Hoistway
Which type of elevator has the longest lifecycle? ✔Correct Answer-Gearless traction
A residential elevator is limited to _______ ft. of travel. ✔Correct Answer-20
A commercial hydraulic elevator is limited to _______ ft. of travel. ✔Correct Answer-60
For preliminary sizing of an all air, or air-water HVAC system, what percentage of the floor area
should be allotted? ✔Correct Answer-3% to 10%.
Why should mechanical equipment (HVAC) rooms be located in the basement? ✔Correct
Answer-For smoke control in a fire. (Smoke rises and will move away from the equipment).
In an HVAC system, frictional resistance between air and duct walls is called _______, and is
measured in _______. ✔Correct Answer-static head, and is measured in inches of water.
Longer ductwork = more _______. ✔Correct Answer-friction
How is friction between air and duct walls overcome? ✔Correct Answer-By enlarging ducts, or
by increasing the size of fans.
,For initial sizing of both supply and return ducts, allow a cross sectional area of _______ sq. ft.
to _______ sq. ft. for every 10,000 square. ft. of floor space. ✔Correct Answer-10 sq. ft to 20
sq. ft.
What does an hvac mixing box do? ✔Correct Answer-Controls air flow from the main supply
line, by adjusting quantity and temperature, while reducing velocity and noise.
What does VAV stand for? ✔Correct Answer-Variable Air Volume.
What does a VAV box do? ✔Correct Answer-Receives air at a constant temperature, then
varies the air flow rate into the room to adjust the temperature.
A plenum is... ✔Correct Answer-...the space between a suspended ceiling and the structural
floor above.
How much of the plenum space does a suspended ceiling usually take up? ✔Correct Answer-2
inches
Thermostats are normally located _______ inches above the floor. ✔Correct Answer-48
When may a thermostat be located 44 inches above the floor. ✔Correct Answer-For
accessibility, when an obstruction extends 20 in. to 25 in. from the wall.
Where are supply registers best placed? ✔Correct Answer-Near areas of heat loss or gain,
such as windows.
Where are return air grilles best placed? ✔Correct Answer-Far from the supply registers.
How much pressure is required to raise water 1 foot. ✔Correct Answer-0.433 psi.
List the three grades of copper pipe from thickest to thinnest. ✔Correct Answer-K, L, and M.
What type of water pipe material is manufactured in continuous lengths on spools, so it can be
cut to length, eliminating the need for fittings. ✔Correct Answer-PEX (cross-linked
polyethylene)
Why is PEX more environmentally friendly than copper? ✔Correct Answer-Because of
copper's environmentally intensive extraction and manufacturing processes.
How is PEX pipe connected? ✔Correct Answer-By compression and crimping with a special
tool.
In regards to plumbing, what is demand load? ✔Correct Answer-The flow rate that would be
needed if every fixture in the system were in use at the same time.
, How is demand load calculated? ✔Correct Answer-By adding the load values (found on a
chart) of all fixtures in the system.
What are the two types of bolted connections? ✔Correct Answer-1. Bearing Type
2. Slip Critical
Which blocks sound better, a wall with a high STC or a wall with a low STC? ✔Correct Answer-
A high STC
What is a bearing type connection? ✔Correct Answer-The load is actually resting (at least
partially) on the bolt, because the bolt holes are larger than the bolt and the pieces of steel
being connected have shifted until they are bearing against the bolt.
What is a slip-critical connection? ✔Correct Answer-A connection where the entire load is
carried by the friction of the two pieces which have been bolted together, and the bolt carries
no loat at all.
What are the codes used for the conditions of use of a bolted connection? ✔Correct Answer-
SC: slip critical
N: bearing connection
X: bearing connection with threads EXCLUDED from the shear plane.
S: single shear
D: double shear
The bottoms of wood joists must be _______ inches above exposed ground. ✔Correct
Answer-18 inches
The bottoms of wood girders must be _______ inches above exposed ground. ✔Correct
Answer-12 inches
The ends of wood girders entering masonry must have a _______ inch air space on the ends,
tops and sides. ✔Correct Answer-1/2 inch
Wood used for construction of permanent structures, located less than _______ inches from
the ground must be treated or naturally decay resistant. ✔Correct Answer-6 inches
Air entrainment concrete admixture increases... ✔Correct Answer-freeze/thaw durability.
