If the plane table is not horizontal in a direction at right angles to the alidade, the line of sight is parallel to the fiducial edge only for (A) Horizontal sights (B) Inclined sights upward (C) Inclined sight downward (D) None of these

If the plane table is not horizontal in a direction at right angles to the alidade, the line of sight is
parallel to the fiducial edge only for
(A) Horizontal sights
(B) Inclined sights upward
(C) Inclined sight downward
(D) None of these
by

1 Answer

Answer :

(A) Horizontal sights
by

Related questions

In horizontal angles, the error due to imperfect levelling of the plate bubble is (A) Large when sights are nearly level (B) Large for long sights (C) Less for steeply inclined sights (D) Large for steeply inclined sights

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Last Answer : (D) Large for steeply inclined sights

For measuring flow by a Venturimeter, if should be installed in (A) Vertical line (B) Horizontal line (C) Inclined line with flow downward (D) In any direction and in any location

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In tangential tacheometry, an ordinary level staff is used (A) Leaning towards the instrument for inclined sights upward (B) Leaning away from the instrument for inclined sights downwards (C) Vertical in all cases (D) None of these

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Last Answer : (C) Vertical in all cases

The reduced levels of the string at the consecutive sight rails A and B are 203.575 m, 203.475 m respectively. If the difference of their R.D.s is 10 m, the gradient of the sewer line is A. 1 in 100 upward B. 1 in 500 upward C. 1 in 100 downward D. 1 in 503 upward

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The direction in which the formal communication flows is always (a) Upward (b) Downward (c) Horizontal (d) All of these

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If vertical angles of inclined sights do not exceed 10° and non-verticality of the staff remains within 1°, stadia system of tacheometric observations are made on (A) Staff normal (B) Staff vertical (C) Staff normal as well as vertical (D) None of these

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The instrument which is used in plane tabling for obtaining horizontal and vertical distances directly without resorting to chaining, is known as (A) Plane alidade (B) Telescopic alidade (C) Clinometer (D) Tacheometer

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A dumpy level was set up at the midpoint between two pegs A and B, 50 m apart and the staff readings at and were 1.22 and 1.06. With the level set up at , the readings at and were 1.55 and 1.37. The collimation error per 100 m length of sight is (A) 0.02 m inclined upwards (B) 0.04 m inclined downwards (C) 0.04 m inclined upward (D) None of these

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Long run supply curve of a decreasing cost industry is (a) Downward sloping curve ; (b) Upward sloping curve; (c) Straight line parallel to X axis ; (d) Straight line parallel to y axis

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Pick up the correct statement from the following: (A) The lines of sight while observing back sight and fore sight lie in the same horizontal plane (B) The staff readings are measurements made vertically downwards from a horizontal plane (C) The horizontal plane with reference to which staff readings are taken, coincides with the level surface through the telescope axis (D) All the above

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Last Answer : (C) Which varies with the direction of pointing and inversely with the length of sight 

A cantilever carries is uniformly distributed load W over its whole length and a force W acts at its free end upward. The net deflection of the free end will be (A) Zero (B) (5/24) (WL3 /EI) upward (C) (5/24) (WL3 /EI) downward (D) None of these

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A simply supported rectangular beam is uniformly loaded and is prestressed. The tendon provided for prestressing should be (a) Straight, above centroidal axis (b) Straight, below centroidal axis (c) parabolic, with convexity upward (d) Parabolic, with convexity downward

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Last Answer : (d) Parabolic, with convexity downward

An increase in temperature on the top fibre of a simply supported beam will cause (a) Downward deflection (b) Upward deflection (c) No deflection (d) Angular rotation about neutral axis

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The deflection at any point of a perfect frame can be obtained by applying a unit load at the joint in (A) Vertic(B) Horizontal direction (C) Inclined direction (D) The direction in which the deflection is required al direction

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