Surveying Questions

• Magnetic declination at any place
• The bearings of two traverse legs AB and BC are N52° 45' E and N34° 30' E respectively. The deflection angle is
• Systematic errors are those errors
• Greater accuracy in linear measurements, is obtained by
• From any point on the surface with a given inclination
• Which of the following introduces an error of about 1 in 1000 if 20 m chain is used
• Total latitude of a point is positive if it lies
• Perpendicularity of an offset may be judged by eye, if the length of the offset is
• In a lemniscate curve the ratio of the angle between the tangent at the end of the polar ray and the straight, and the angle between the polar ray and the straight, is
• The total change in level along the line is equal to total back sights
• The apparent error on reversal is
• The ratio of the linear displacement at the end of a line, subtended by an arc of one second to the length of the line, is
• If the radius of a simple curve is 600 m, the maximum length of the chord for calculating offsets, is taken
• Ranging in chain survey means
• In levelling operation,
• While measuring with a metallic tape of 30 m length pull should be applied
• To set out a parallel from a given inccessible point to a given line AB, the following observations and made Distance AB and angle PAM = a and angle PBA = b are measured where Mis a point on the line BA produced. The perpendicular to the desired parallel line from A and B are :
• The bearing of AB is 190° and that of CB is 260° 30'. The included angle ABC, is
• The ratio of the radius and apex distance of a curve deflecting through Δ°, is
• Surveys which are carried out to depict mountains, rivers, water bodies, wooded areas and other cultural details, are known as