241) If the spacing of cross hairs in a stadia diaphragm of a tacheometer is 1.2 mm and the focal length of object glass is 24 cm, then the multiplying constant of tacheometer is

Answer Discuss in Comment

100

242) If an upgrade of 1.5% is followed by a downgrade of 0.5% and rate of change of grade is 0.2% per 20m chain, then the length of vertical curve is

Answer Discuss in Comment

200m

243) The difference in elevation of points between a vertical and a tangent is

Answer Discuss in Comment

directly proportional to the square of its horizontal distance from the point of tangency

244) Heliograph is a type of

Answer Discuss in Comment

sun signal used in triangulation work

245) A 100m tape is held 1 m out of line. The true length is

Answer Discuss in Comment

99.9950 m

246) An imaginary line passing through the optical centre of the objective and the optical centre of the eye-piece in the telescope or a surveying instrument is called the

Answer Discuss in Comment

optical axis of the telescope

247) The two-peg test in the adjustment of a dumpy level employs the principle that

Answer Discuss in Comment

reciprocal levelling eliminates errors of non-parallel instrument and collimation axes

248) The difference between the sum of the angles of a plane triangle and the sum of the angles of a spherical triangle is one second when the triangle on the earth surface has an area of about

Answer Discuss in Comment

195 sq.km

249) The representative fraction 1/2500 means that the scale is 1 cm equal to

Answer Discuss in Comment

25 m

250) The radius of curvature of an ideal transition curve should be

Answer Discuss in Comment

inversely proportional to its length from the beginning

Engineering Survey

241) If the spacing of cross hairs in a stadia diaphragm of a tacheometer is 1.2 mm and the focal length of object glass is 24 cm, then the multiplying constant of tacheometer is

242) If an upgrade of 1.5% is followed by a downgrade of 0.5% and rate of change of grade is 0.2% per 20m chain, then the length of vertical curve is

243) The difference in elevation of points between a vertical and a tangent is

244) Heliograph is a type of

245) A 100m tape is held 1 m out of line. The true length is

246) An imaginary line passing through the optical centre of the objective and the optical centre of the eye-piece in the telescope or a surveying instrument is called the

247) The two-peg test in the adjustment of a dumpy level employs the principle that

248) The difference between the sum of the angles of a plane triangle and the sum of the angles of a spherical triangle is one second when the triangle on the earth surface has an area of about

249) The representative fraction 1/2500 means that the scale is 1 cm equal to

250) The radius of curvature of an ideal transition curve should be

Subject Notes

Objective Box

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Engineering Survey

241) If the spacing of cross hairs in a stadia diaphragm of a tacheometer is 1.2 mm and the focal length of object glass is 24 cm, then the multiplying constant of tacheometer is

242) If an upgrade of 1.5% is followed by a downgrade of 0.5% and rate of change of grade is 0.2% per 20m chain, then the length of vertical curve is

243) The difference in elevation of points between a vertical and a tangent is

244) Heliograph is a type of

245) A 100m tape is held 1 m out of line. The true length is

246) An imaginary line passing through the optical centre of the objective and the optical centre of the eye-piece in the telescope or a surveying instrument is called the

247) The two-peg test in the adjustment of a dumpy level employs the principle that

248) The difference between the sum of the angles of a plane triangle and the sum of the angles of a spherical triangle is one second when the triangle on the earth surface has an area of about

249) The representative fraction 1/2500 means that the scale is 1 cm equal to

250) The radius of curvature of an ideal transition curve should be

Subject Notes

Objective Box

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Your Reaction

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