NCIDQ IDPX TEST |ACTUAL QUESTIONS AND
VERIFIED ANSWERS|BRAND NEW 2026-2027
UPDATE|GRADED A+
Question 1
When estimating how much fabric will be required for custom designed draperies, which
of the following will you need to consider when determining the total fabric width
needed?
A the amount of fullness of the drapery, the opening size
B the opening size, the amount of fullness, the return
C the return, the opening size, the stacking space
D all of these
CORRECT ANSWER
D. all of these // In estimating fabric for draperies, the total fabric width must be
determined. This is the total of the opening size, the stacking space, the return, any
overlap of two sections of drapery, and the amount of fullness of the drapery.
Question 2
What is the maximum height of an accessible (barrier free) sink?
36" (900 mm)
34" (865 mm)
30" (750 mm)
27" (685 mm)
CORRECT ANSWER
B. 34" // NCIDQ 5.2 ALL accessible (barrier-free) countertops, sinks,
reception/transaction surfaces, and other horizontal work surfaces MUST NOT exceed
34″ (865 mm) AFF with a 27″H (685 mm) clear knee space below.
1
, ADA.gov 606.3 Height. Lavatories and sinks shall be installed with the front of the higher
of the rim or counter surface 34 inches (865 mm) maximum above the finish floor or
ground.
306.3.3 Minimum Required Depth. Where knee clearance is required under an element
as part of a clear floor space, the knee clearance shall be 11 inches (280 mm) deep
minimum at 9 inches (230 mm) above the finish floor or ground, and 8 inches (205 mm)
deep minimum at 27 inches (685 mm) above the finish floor or ground.
Question 3
A $OSS switch indicates what?
daylight sensor
remote controlled switch
one single switch
occupancy sensor/switch combination
CORRECT ANSWER
D. occupancy sensor/switch combination // Refer to your drawing legend, as symbols
used may vary from what you are accustomed to, and could possibly vary from test to
test. This is the symbol provided on a typical NCIDQ drawing that indicates occupancy
sensor/switch combination.
Question 4
What is minimum clear width of the doorway and maximum size of an egress door?
34 clear width and 36 door leaf
32 clear width and 48 door leaf
34 clear width and 48 door leaf
30 clear width and 36 door leaf
CORRECT ANSWER
2
, B. 32 clear width and 48 door leaf // International Building Code 1008.1.1 Size of doors.
The minimum width of each door opening...shall provide a clear width of 32 inches (813
mm). Clear openings of doorways with swinging doors shall be measured between the
face of the door and the stop, with the door open 90 degrees (1.57 rad). Where this
section requires a minimum clear width of 32 inches (813 mm) one leaf shall provide a
clear opening width of 32 inches (813 mm). The maximum width of a swinging door leaf
shall be 48 inches (1219 mm) nominal.
Question 5
When selecting the upholstery and window treatment fabrics for a hotel lobby design,
which of the following standards would NOT be a consideration for the fabric?
Cigarette Ignition Resistance Test of Furniture components
NFPA 257
Vertical Ignition Test
Cal TB 116
CORRECT ANSWER
B. NFPA 257 // All of these tests relate to the flammability of fabrics with the exception
of NFPA 257, the Standard for Fire test for window and glass block assemblies.
This fire and hose stream test establishes fire protection, in units of time, for window
openings in fire-resistive walls. It determines the degree of protection from the spread of
fire, including flame, heat and hot gases.
Question 6
Designing sustainable commercial interiors can benefit businesses in three primary areas
to include social, economic and environmental issues.
Which of the following is not a positive effect achieved in these areas?
increased property values, increased recruitment and retention costs, reduced landfill trash
3
VERIFIED ANSWERS|BRAND NEW 2026-2027
UPDATE|GRADED A+
Question 1
When estimating how much fabric will be required for custom designed draperies, which
of the following will you need to consider when determining the total fabric width
needed?
A the amount of fullness of the drapery, the opening size
B the opening size, the amount of fullness, the return
C the return, the opening size, the stacking space
D all of these
CORRECT ANSWER
D. all of these // In estimating fabric for draperies, the total fabric width must be
determined. This is the total of the opening size, the stacking space, the return, any
overlap of two sections of drapery, and the amount of fullness of the drapery.
Question 2
What is the maximum height of an accessible (barrier free) sink?
36" (900 mm)
34" (865 mm)
30" (750 mm)
27" (685 mm)
CORRECT ANSWER
B. 34" // NCIDQ 5.2 ALL accessible (barrier-free) countertops, sinks,
reception/transaction surfaces, and other horizontal work surfaces MUST NOT exceed
34″ (865 mm) AFF with a 27″H (685 mm) clear knee space below.
1
, ADA.gov 606.3 Height. Lavatories and sinks shall be installed with the front of the higher
of the rim or counter surface 34 inches (865 mm) maximum above the finish floor or
ground.
306.3.3 Minimum Required Depth. Where knee clearance is required under an element
as part of a clear floor space, the knee clearance shall be 11 inches (280 mm) deep
minimum at 9 inches (230 mm) above the finish floor or ground, and 8 inches (205 mm)
deep minimum at 27 inches (685 mm) above the finish floor or ground.
Question 3
A $OSS switch indicates what?
daylight sensor
remote controlled switch
one single switch
occupancy sensor/switch combination
CORRECT ANSWER
D. occupancy sensor/switch combination // Refer to your drawing legend, as symbols
used may vary from what you are accustomed to, and could possibly vary from test to
test. This is the symbol provided on a typical NCIDQ drawing that indicates occupancy
sensor/switch combination.
Question 4
What is minimum clear width of the doorway and maximum size of an egress door?
34 clear width and 36 door leaf
32 clear width and 48 door leaf
34 clear width and 48 door leaf
30 clear width and 36 door leaf
CORRECT ANSWER
2
, B. 32 clear width and 48 door leaf // International Building Code 1008.1.1 Size of doors.
The minimum width of each door opening...shall provide a clear width of 32 inches (813
mm). Clear openings of doorways with swinging doors shall be measured between the
face of the door and the stop, with the door open 90 degrees (1.57 rad). Where this
section requires a minimum clear width of 32 inches (813 mm) one leaf shall provide a
clear opening width of 32 inches (813 mm). The maximum width of a swinging door leaf
shall be 48 inches (1219 mm) nominal.
Question 5
When selecting the upholstery and window treatment fabrics for a hotel lobby design,
which of the following standards would NOT be a consideration for the fabric?
Cigarette Ignition Resistance Test of Furniture components
NFPA 257
Vertical Ignition Test
Cal TB 116
CORRECT ANSWER
B. NFPA 257 // All of these tests relate to the flammability of fabrics with the exception
of NFPA 257, the Standard for Fire test for window and glass block assemblies.
This fire and hose stream test establishes fire protection, in units of time, for window
openings in fire-resistive walls. It determines the degree of protection from the spread of
fire, including flame, heat and hot gases.
Question 6
Designing sustainable commercial interiors can benefit businesses in three primary areas
to include social, economic and environmental issues.
Which of the following is not a positive effect achieved in these areas?
increased property values, increased recruitment and retention costs, reduced landfill trash
3
