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Lokeshkumar Meena

· started a discussion

· 1 Months ago

the given ans is wrong (Question: 391945.0 )

wrong ans

Question:

The slope or pitch or stair should be between:

Options:
A)

10˚ to 25˚ 

B)

25˚ to 40˚

C)

40˚ to 55˚

D)

55˚ to 70˚

Solution:

Ans: (a)

Knowledge Expert

· commented

· 1 Months ago

The angle is based on the amount of space available, but is commonly determined by the rise and run of a stair. With a 7 inch riser and an 11 inch tread (this is usually a minimum) you get an angle of arctan(7/11) or 32 degrees.

The correct answer is option (b)
Regards
TR
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