Questions and answers for exam Preparation

MCQs

Total Questions : 2015 | Page 197 of 202 pages

Question 1961. If the R.L. of a B.M. is 100.00 m, the back- sight is 1.215 m and the foresight is 1.870 m, the R.L. of the forward station is_________________?

99.345 m
100.345 m
100.655m
101.870m

Discuss Question

Answer: Option A. -> 99.345 m
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1962. Theodolite is an instrument used for_________________?

tightening the capstan-headed nuts of level tube
measurement of horizontal angles only
measurement of vertical angles only
measurement of both horizontal and vertical angles

Discuss Question

Answer: Option D. -> measurement of both horizontal and vertical angles
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1963. Which of the following errors can be eliminated by taking mean of bot face observations ?

error due to imperfect graduations
error due to eccentricity of verniers
error due to imperfect adjustment of plate levels
error due to line of collimation not being perpendicular to horizontal axis

Discuss Question

Answer: Option D. -> error due to line of collimation not being perpendicular to horizontal axis
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1964. The following sights are taken on a “turning point”________________?

foresight only
backsight only
foresight and backsight
foresight and intermediate sight

Discuss Question

Answer: Option C. -> foresight and backsight
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1965. As applied to staff readings, the corrections for curvature and refraction are respectively The above table shows a part of a level field book. The value of X should be________________?

98.70
100.00
102.30
103.30

Discuss Question

Answer: Option B. -> 100.00
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1966. The sensitivity of a bubble tube can be increased by________________?

increasing the diameter of the tube
decreasing the length of bubble
increasing the viscosity of liquid
decreasing the radius of curvature of tube

Discuss Question

Answer: Option A. -> increasing the diameter of the tube
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1967. If the staff is not held vertical at a level¬ling station, the reduced level calculated from the observation would be_______________?

true R.L
more than true R.L
less than true R.L
none of the above

Discuss Question

Answer: Option C. -> less than true R.L
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1968. The rise and fall method_______________?

is less.accurate than height of instrument method
is not suitable for levelling with tilting levels
provides a check on the reduction of intermediate point levels
quicker and less tedious for large number of intermediate sights

Discuss Question

Answer: Option C. -> provides a check on the reduction of intermediate point levels
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1969. Which of the following errors can be neutralised by setting the level midway between the two stations ?

error due to curvature only
error due to refraction only
error due to both curvature and re-fraction
none of the above

Discuss Question

Answer: Option C. -> error due to both curvature and re-fraction
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1970. The R.L, of the point A which is on the floor is 100 m and back sight reading on A is 2.455 m. If the foresight reading on the point B which is on the ceiling is 2.745 m, the R.L. of point B will be_______________?