What is the first step in determining the riser height (unit rise) of a stairway?

Determine the final thickness of the floor assembly above the stairway

Add the floor assembly thickness to the vertical distance

Divide the total rise of the stairway by 7 inches

Measure the width of the stairway

What should you do after determining the final thickness of the floor assembly above the stairway?

Add the floor assembly thickness to the vertical distance from the finished ceiling to the finished floor at the base of the stairs

Divide the total rise of the stairway by 7 inches

Measure the width of the stairway

Calculate the total number of steps

What should you do if the decimal remainder is not a whole number when converting to a fractional inch value?

Multiply by 32 and round up or down

Multiply by 16 and round up or down

Multiply by 8 and round up or down

Multiply by 64 and round up or down

How is the tread depth (unit run) measured?

From the face of one riser to the face of the next, excluding the nosing.

From the face of one riser to the face of the next, including the nosing.

From the back of one tread to the back of the next tread.

From the bottom of one riser to the top of the next riser.

What is used to determine the unit run according to the applicable code?

The unit rise and one of the rules (Rule 1, 2, or 3)

Why is the minimum permissible unit run typically used in the calculation?

To conserve the space required for the stairwell opening

To increase the height of the stairs

How do you determine the total run if the stringer uses the stairwell header as the last riser?

Subtract one from the number of risers and multiply by the unit run

Add one to the number of risers and multiply by the unit run

Multiply the number of risers by the unit rise

Divide the number of risers by the unit run

What should you do if the stringer is mounted flush with the top of the floor?

Multiply the number of risers by the unit run

Subtract one from the number of risers

Add one to the number of risers

Divide the number of risers by the unit rise

What is the first step in determining the required length of a stairwell?

Determine the final thickness of the floor assembly above the stairs, in inches.

Add the floor thickness to the code-required or desired headroom.

Divide the sum by the riser height (unit rise).

Multiply the tread depth (unit run) by the whole number obtained.

In the procedure to determine stairwell length, what should you do after adding the floor thickness to the code-required or desired headroom?

Divide the sum by the riser height (unit rise) and round up to the next whole number.

Multiply the tread depth by the whole number obtained.

Determine the final thickness of the floor assembly.

Measure the height of the stairwell.

What is the final step in determining the stairwell length?

Multiply the tread depth (unit run) by the whole number obtained in Step 2.

Add the floor thickness to the code-required or desired headroom.

Determine the final thickness of the floor assembly.

Divide the sum by the riser height (unit rise).

What is the first step in determining the unit rise/run for a preframed stairwell?

Determine the optimum unit rise (riser height) in inches.

Determine the final thickness of the floor assembly above the stairs.

Add the floor assembly thickness to the code-required headroom.

Divide the stairwell length by the number of risers.

In the process of determining the unit rise/run for a preframed stairwell, what should be done after determining the final thickness of the floor assembly?

Add the floor assembly thickness to the code-required headroom and divide by the unit rise.

Divide the stairwell length by the number of risers.

Check the unit run-to-rise ratio using the applicable rule.

Determine the optimum unit rise (riser height) in inches.

How is the unit run (tread width) obtained in the process of determining the unit rise/run for a preframed stairwell?

By dividing the stairwell length by the number of risers.

By determining the optimum unit rise.

By adding the floor assembly thickness to the code-required headroom.

By checking the unit run-to-rise ratio using the applicable rule.

What is the final step in the process of determining the unit rise/run for a preframed stairwell?

Check the unit run-to-rise ratio using the applicable rule.

Determine the final thickness of the floor assembly.

Add the floor assembly thickness to the code-required headroom.

Divide the stairwell length by the number of risers.

27110 #3 Stairs Layout Quiz

28 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT part of the procedure to determine stairway requirements?

Calculate the riser height.

Determine the tread depth.

Measure the total run for a stairway.

Identify the color of the stairway.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should you be able to explain after completing the session?

How to calculate the riser height, tread depth, and total run for a stairway.

How to design a spiral staircase.

How to install a handrail.

How to paint a stairway.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following information is commonly specified by the architect for stairways in architectural plans?

Total rise

Total width

Total height

Total depth

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is framed first according to the drawings in the case of stairwell openings?

The stair treads

The stair risers

The stairwell openings

The stair handrails

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT commonly specified by the architect for stairways?

Unit rise

Unit run

Number of risers and treads

Total height

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What determines the slope of the stairway?

The ratio of the riser height and tread depth

The width of the stairway

The height of the building

The number of steps

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to Rule 1, what should the sum of tread width and riser height equal?

24 to 25 inches

70 to 75 inches

17 to 18 inches

20 to 22 inches

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27110 #3 Stairs Layout

Which of the following is NOT part of the procedure to determine stairway requirements?

What should you be able to explain after completing the session?

Which of the following information is commonly specified by the architect for stairways in architectural plans?

What is framed first according to the drawings in the case of stairwell openings?

Which of the following is NOT commonly specified by the architect for stairways?

What determines the slope of the stairway?

According to Rule 1, what should the sum of tread width and riser height equal?

According to Rule 2, what should the sum of tread width plus (2 multiplied by riser height) equal?

According to Rule 3, what should tread width multiplied by riser height equal?

What is the preferred slope range of a stairway for maximum ease and safety in ascent and descent?

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