# Chain line

Chain line.

A.The area of an irregular plotted figure can be accurately obtained with the help of a

(a) pentagraph (b) parallax bar

(c) planimeter (d) Any of these

B. Area enclosed between a curved boundary and a chain line can be found by

(a) Simpson’s rule (b) Poncelet’s rule

(c) Francke’s rule (d) All of these

C. Simpson’s rule for calculating area is applicable only when the ordinates are

(a) odd (b) even

(c) Either (a) or (b) (d) None of these

D. Which of the following figures are equal to one acre?

(i) 43560 sq. ft

(ii) 40 gunthas

(iii) 10 sq. Gunter’s chain

(iv) 4840 sq. yards

Select the correct answer using the codes given below.

(a) (i), (ii) and (iii) (b) (ii), (iii) and (iv)

(c) (i), (ii) and (iv) (d) (i), (iii) and (iv)

E. The assumption that the boundaries between the extremities of three consecutive

offsets is a parabolic arc whose axis is parallel to the offsets is made for

(i) Average ordinate rule

(ii) Midordinate rule

(iii) Simpson’s onethird rule

Of these

(a) (i) and (iii) are correct (b) (ii) and (iii) are correct

(c) Only (iii) is correct (d) only (i) is correct

Chain line

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