Civil Engineering - UPSC Civil Service Exam Questions - Discussion
Discussion Forum : UPSC Civil Service Exam Questions - Section 3 (Q.No. 13)
13.
A plan of an area drawn with the original scale of 1 cm = 10 m, has shrunk such that a line, originally 15 cm long on the plan, measures now 14.5 cm. The shrunk scale is given by 1 cm equal to
Discussion:
19 comments Page 1 of 2.
Jitender Singh said:
9 years ago
Since, true length =( wrong scale ÷ correct scale) * measured length.
Here now true length will be = 14.5 cm as we have to find the scale for it. Wrong scale will then be 10 and measured length 15.
14.5= (10 ÷correct scale) x 15.
Here now true length will be = 14.5 cm as we have to find the scale for it. Wrong scale will then be 10 and measured length 15.
14.5= (10 ÷correct scale) x 15.
Sadashiva said:
8 years ago
Shrunk scale=original scale * shrinkage factor.
Shrinkage factor=Shrunk lenth/actual length.
=15/14.5.
=1.034.
Shrunk scale = 10 * 1.034.
= 10.34m.
Shrinkage factor=Shrunk lenth/actual length.
=15/14.5.
=1.034.
Shrunk scale = 10 * 1.034.
= 10.34m.
Saurbh kumar said:
5 years ago
In the problem has clearly said, it's problem of shrinkage:
So,
Shrinkage factor = 14.5÷15 = 0.966
Shrinkage scale = Shrinkage factor * original scale = 0.966 * 1/10 = 1/10 ÷ 0.966 = 1/10.35.
Shrinkage scale = 10.35 m.
So,
Shrinkage factor = 14.5÷15 = 0.966
Shrinkage scale = Shrinkage factor * original scale = 0.966 * 1/10 = 1/10 ÷ 0.966 = 1/10.35.
Shrinkage scale = 10.35 m.
(3)
Ankit singh said:
6 years ago
Shrunk factor = 145/150.
= 29/30.
Shrunk scale = original scale * SF.
= (1cm/1000cm) * (29/30).
= 1cm/ 1034cm.
Shrunk scale : 1cm = 10.30 m.
= 29/30.
Shrunk scale = original scale * SF.
= (1cm/1000cm) * (29/30).
= 1cm/ 1034cm.
Shrunk scale : 1cm = 10.30 m.
(1)
Yaswanth Kumar Peta said:
3 years ago
Shrunk scale = original length * shrunk factor.
Shrunk factor = shrunk length/original length = 14.5/15.
Now Shrunk sclae = 15 * 14.5/100 = 1034.48cm.
= 1034.48/100 = 10.34m.
Shrunk factor = shrunk length/original length = 14.5/15.
Now Shrunk sclae = 15 * 14.5/100 = 1034.48cm.
= 1034.48/100 = 10.34m.
(11)
SHEHIN S RAHIM said:
6 years ago
SHRUNK SCALE = SF * OS.
SF = SL/OL = 14.5CM/15CM.
SS = SF * OS = (14.5/15)*(1/1000) = 1/(15000/14.5) = 1/1034.48CM.
In m it's 10.34.
SF = SL/OL = 14.5CM/15CM.
SS = SF * OS = (14.5/15)*(1/1000) = 1/(15000/14.5) = 1/1034.48CM.
In m it's 10.34.
(5)
Gitanjali Kumari said:
5 years ago
SHRUNK FACTOR=SHRUNK SCALE/ORIGINAL SCALE
=> 15/14.5
= 1.0344
SHRUNK SCALE = S.F * ORIG SCALE,
=1.0344 * 10 = 10.344m.
=> 15/14.5
= 1.0344
SHRUNK SCALE = S.F * ORIG SCALE,
=1.0344 * 10 = 10.344m.
(13)
Brijen said:
3 years ago
Shrunk scale = New/old = 14.5/15.
Shrunk factor = shrunk scale * original scale = 14.5/15 *1/10 = 1/10.34.
Shrunk factor = shrunk scale * original scale = 14.5/15 *1/10 = 1/10.34.
(16)
Pawan said:
8 years ago
1cm =1000cm.
15cm = 15000cm.
14.5cm = 15000/14.5 = 1034.45152cm.
= 10.34m.
15cm = 15000cm.
14.5cm = 15000/14.5 = 1034.45152cm.
= 10.34m.
Shankar nehara said:
5 years ago
Shrunk scale = original scale /measured scale.
So, 15/14.5 = 10.34m.
So, 15/14.5 = 10.34m.
(3)
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