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Civil Engineering - Building Construction - Discussion

Discussion Forum : Building Construction - Section 1 (Q.No. 24)
Building Construction
24.
While designing a stair, the product of rise and going is approximately kept equal to
350
420
450
500
600.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
32 comments Page 1 of 4.
Yogeshwaran said:   3 years ago
Minimum going ( tread ) = 28 cm.
Minimum rise = 15 cm.
Product = 28 * 15.
= 420.
(8)
WASEEM SANGI said:   3 years ago
Staircase are designed according to use as for residential or commercial and different dimensions are for them. Generally for residential buildings the product of rise and going is kept 450.
(3)
Hayat said:   6 years ago
Approximately 410 to 450.

Ref: Ranwala.
(2)
Agha Bilal said:   7 months ago
According to me, the product of going (in cm) and the rise (in cm) should be equal to 400.
(1)
Hardik said:   5 years ago
Tread = rise -1.
So,30* 9 = 270 &
15* 10 =150.
Total =270+150 =420.
(1)
Pratikkumar said:   7 years ago
In residential building, going is 25cm and riser is 16cm mean R * G = 25 * 16 = 400cm.
(1)
Ranjit yadav said:   7 years ago
450, 420 also right.

Here it is 14*30=420 because of min Riser 14 cm.
(1)
Muhammad Ishaq said:   9 years ago
It is RISE & Tread, Not Rise and going.
Sajid Aziz said:   5 years ago
@Hardik.

I didn't get your point,

Why you are multiplying 30 by 9?
Can you explain please?
Manav sumra said:   6 years ago
Normally,

Riser h=17 cm.
Tread (going) l=25 cm.
So. h*l = 17 * 25 = 425.

But standard sizes are,
7 to 9 inch for risers and.
9 to 11 inch for treads.

So B and C both right but the nearest value of 425 is 420 so B is correct answer for this question
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