29401. If the area calculated form the plan plotted with measurements by an erroneous chain, accurate area of the plan is
29402. The sum of the interior angles of a geometrical figure laid on the surface of the earth differs from that of the corresponding plane figure only to the extent of one second for every
29403. The systematic errors which persist and have regular effects in the performance of a survey operation, are due to
29404. It θ is the probable error of an observed bearing of a line of length l, the error over the whole length of the traverse of n lines of length l is
29405. The best method of interpolation of contours, is by
29406. Pick up the correct specification of Ramsden eyepiece from the following :
29407. The conventional sign shown in below figure represents a
29408. Deviation of the actual road gradient from the proposed contou'r gradient up hill side, involves
29409. Measuring with a 30 m chain, 0.01 m too short, introduces
29410. Setting out a curve by two theodolite method, involves
29411. When the bubble of the level tube of a level, remains central
29412. We agree -----------most things
29413. The area of a plane triangle ABC, having its base AC and perpendicular height h, is
29414. The vertical angle between longitudinal axis of a freely suspended magnetic needle and a horizontal line at its pivot, is known
29415. A relatively fixed point of known elevation above datum, is called
29416. Cross hairs in surveying telescopes, are fitted
29417. Metric chains are generally available in
29418. On a diagonal scale, it is possible to read up to
29419. Plotting of inaccessible points on a plane table, is done by
29420. A dumpy level is set up with its eye-piece vertically over a peg A. The height from the top of peg A to the centre of the eye-piece is 1.540 m and the reading on peg B is 0.705 m. The level is then setup over B. The height of the eye-piece above peg B is 1.490 m and a reading on A is 2.195 m. The difference in level between A and B is
29421. Probable systematic error in precise levelling as recommended by International Geodetic Association should not exceed
(where k is in kilometers.)
29422. The curve composed of two arcs of different radii having their centres on the opposite side of the curve, is known
29423. The ratio of the angles subtended at the eye, by the virtual image and the object, is known as telescope's
29424. The bubble tube is nearly filled with
29425. Simpson's rule for calculating areas states that the area enclosed by a curvilinear figure divided into an even number of strips of equal width, is equal to
29426. In a constant level tube, size of the bubble remains constant because upper wall is
29427. Prismatic compass is considered more accurate than a surveyor's compass, because
29428. In reciprocal levelling, the error which is not completely eliminated, is due to
29429. In tacheometrical observations, vertical staff holding is generally preferred to normal staffing, due to
29430. Removal of parallax, may be achieved by focussing
29431. Put the adjectives in right order.The house was-----building
29432. The direction of steepest slope on a contour, is
29433. Back bearing of a line is equal to
29434. In an internal focusing telescope
29435. The longitudinal section of the surface of bubble tube is
29436. Imaginary line passing through points having equal magnetic declination is termed as
29437. In case of reduction of levels by the height of instrument method,
29438. A theodolite is said to be in perfect adjustment if
29439. While rotating the theodolite in the horizontal plane, the bubble of the bubble tube takes up the same position in its tube, it indicates
29440. The main plate of a transit is divided into 1080 equal divisions. 60 divisions of the vernier coincide exactly with 59 divisions of the main plate. The transit can read angles accurate upto
29441. Choose the correct plural form of ‘Basis’
29442. A traverse deflection angle is
29443. While measuring a chain line between two stations A and B intervened by a raised ground
29444. The Random errors tend to accumulate proportionally to
29445. The true meridian of a place is the line in which earth's surface is intersected by a plane through
29446. The least count of a vernier scale is
29447. Which one of the following procedures for getting accurate orientation is the most distinctive feature of the art of plane tabling
29448. A clinometer is used for
29449. Diurnal variation of magnetic declination is
29450. The 'fix' of a plane table from three known points, is good, if