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Objective Question & Answer

QUESTION

Objective Question

Q.1

For a chord of 60 m, the mid-ordinate for a circular curve of 50 m radius will be

60 m की एक जीवा के लिए, 50 m त्रिज्या के एक वृत्ताकार वक्र के लिए मध्य-कोर्डिनेट होगा
A

10 m
B

12.5 m
C

15 m
D

18.75 m
Answer ( Option A)

10 m

Solution

Mid-ordinate, M = R (1 - cos )

Long chord, L = 2R sin

60 = 2 × 50 sin

sin

 

M = 50 (1 - cos 36.87°)

=

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