The process of turning the telescope about the vertical axis in horizontal plane is known as
a) transiting b) reversing c) plunging d) swinging Ans: d
SURVEYING Questions
The following sights are taken on a “turning point”
a) foresight only b) backsight only c) foresight and backsight d) foresight and intermediate sight Ans: c
The following sights are taken on a “turning point” Read Post »
The maximum tolerance in a 20 m chain is
a) ±2 mm b) ±3 mm c) ±5 mm d) ±8 mm Ans: c
The maximum tolerance in a 20 m chain is Read Post »
The length of a chain is measured from
a) centre of one handle to centre of other handle b) outside of one handle to outside of other handle
The length of a chain is measured from Read Post »
Size of a theodolite is specified by
a) the length of telescope b) the diameter of vertical circle c) the diameter of lower plate d) the diameter
Size of a theodolite is specified by Read Post »
The rise and fall method of levelling provides a complete check on
a) backsight b) intermediate sight c) foresight d) all of the above Ans: d
The rise and fall method of levelling provides a complete check on Read Post »
During chaining along a straight line, the . leader of the party has 4 arrows in his hand while the follower has 6. Distance of the follower from the starting point is
a) 4 chains b) 6 chains c) 120 m d) 180m Ans: b
In the prismatic compass
a) the magnetic needle moves with the box b) the line of the sight does not move with the box
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Which of the following is not the function of levelling head ?
a) to support the main part of the instrument b) to attach the theodolite to the tripod c) to provide
Which of the following is not the function of levelling head ? Read Post »
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
a) 99.345 m b) 100.345 m c) 100.655m d) 101.870m Ans: a
A metallic tape is made of
a) steel b) invar c) linen d) cloth and wires Ans: d
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If the true bearing of a line AB is 269° 30′, then the azimuth of the line AB is
a) 0° 30′ b) 89° 30′ c) 90° 30′ d) 269° 30′ Ans: c
If the true bearing of a line AB is 269° 30′, then the azimuth of the line AB is Read Post »
For which of the following permanent adjustments of theodolite, the spire test is used ?
a) adjustment of plate levels b) adjustment of line of sight c) adjustment of horizontal axis d) adjustment of altitude
For which of the following permanent adjustments of theodolite, the spire test is used ? Read Post »
Which of the following errors can be neutralised by setting the level midway between the two stations ?
a) error due to curvature only b) error due to refraction only c) error due to both curvature and re-fraction
For a well-conditioned triangle, no angle should be less than
a) 20° b) 30° c) 45° d) 60° Ans: b
For a well-conditioned triangle, no angle should be less than Read Post »