Civil Engineering - Surveying - Discussion
Discussion Forum : Surveying - Section 2 (Q.No. 16)
16.
Keeping the instrument height as 1 
m, length of staff 4 m, the up gradient of the ground 1 in 10, the sight on the up slope must be less than
m, length of staff 4 m, the up gradient of the ground 1 in 10, the sight on the up slope must be less thanDiscussion:
42 comments Page 4 of 5.
Ritu said:
8 years ago
What is the formula for sight on the down slope?
Garry said:
8 years ago
I agree @Amitkumarsachin.
Er Meghanada (Bhadrak.Odisha) said:
8 years ago
h = height of the instrument+height of staff/gradient.
Slope = h square (2x staff length).
h = 3/2+4/10
= 1.5 + 0.4 = 1.9.
Slope = 1.9 square (2*4) = 0.45 m.
For 100 m slope = 45 m.
Slope = h square (2x staff length).
h = 3/2+4/10
= 1.5 + 0.4 = 1.9.
Slope = 1.9 square (2*4) = 0.45 m.
For 100 m slope = 45 m.
Amitkumarsachin said:
8 years ago
I think height should be 15 m because here is up gradient, not down gradient so here 1.5 m height should be read by instrument, so
L =height/slope =1.5/(1/10)=15m.
L =height/slope =1.5/(1/10)=15m.
(1)
Naveen nk said:
8 years ago
Sight on the up slope=(Instrument height +length of the staff)÷gradient.
=(4+1.5)÷1/10,
=55m.
=(4+1.5)÷1/10,
=55m.
Dinesh prasad sao said:
9 years ago
I think the height of instrument is 1/2.
Ravi said:
9 years ago
I think this should be 55m.
Dilawar memon said:
9 years ago
@Anshul & @Abhay.
You are making mistake the formula is,
h = (height of instrument + height of staff) / gradient.
How can you change the rule of solving round bracket first and then division?
You are making mistake the formula is,
h = (height of instrument + height of staff) / gradient.
How can you change the rule of solving round bracket first and then division?
Abhay said:
10 years ago
h = height of the instrument+height of staff/gradient.
Slope = h^2/(2x staff length).
h = 3/2+4/10 = 1.5 + 0.4 = 1.9.
Slope = 1.9^2/(2*4) = 0.45 m.
For 100 m slope = 45 m.
Slope = h^2/(2x staff length).
h = 3/2+4/10 = 1.5 + 0.4 = 1.9.
Slope = 1.9^2/(2*4) = 0.45 m.
For 100 m slope = 45 m.
(1)
Anshul said:
10 years ago
Slope= h^2/2L.
h = (1.5)+4\10 = 1.9.
= 1.9^2/2*4 = 45.
h = (1.5)+4\10 = 1.9.
= 1.9^2/2*4 = 45.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers