surveying MCQs – Page 2

B. loss of magnetism of the needle

C. incorrect levelling of the magnetic needle

D. friction of the needle at the pivot

A. spirit level

B. trough compass

D. alidade

A. 3 mm

B. 8 mm

D. 2 mm

A. Bessels method

C. Lehmans method

D. Tracing paper method

A. error due to curvature only

B. error due to refraction only

D. none of the above

A. level

C. chain

D. cross staff

A. d

B. 1/d

C. 1/d2

A. 100.655m

C. 100.345 m

D. 101.870m

A. horizontal line

B. line passing through the center of cross hairs and the center of eye piece

C. line passing through the objective lens and the eye-piece of a dumpy or tilting level

B. 90

C. 60

D. 30

A. foresight and intermediate sight

B. backsight only

D. foresight only

A. optical square

C. steel tape

D. cross staff

A. resection

B. traversing

D. all of the above

B. theodolite surveying

C. trigonometrical levelling

D. tacheomefry

A. equal to true error

B. half the true error

D. two times the true error

B. magnetic bearing

C. local attraction

D. azimuth

A. one

C. four

D. two

B. adjustment of plate levels

C. adjustment of altitude bubble and vertical index frame

D. adjustment of line of sight

A. 7.5 m

B. 50

D. 25 m

A. reverse curve

B. compound curve

C. vertical curve

A. none of the above

B. depression

C. plain surface

A. intermediate sight

B. foresight

C. backsight

A. none of the above

B. measuring approximate horizontal angles

C. measuring bearings of the lines

B. gentle slope

C. plane surface

D. uniform slope

A. steel

B. linen

C. invar

A. is not suitable for levelling with tilting levels

B. quicker and less tedious for large number of intermediate sights

C. is less.accurate than height of instrument method

B. plains

C. urban areas

D. forests

B. 100 and 0

C. 0 and 0

D. 100 and 100

A. error due to imperfect graduations

C. error due to imperfect adjustment of plate levels

D. error due to eccentricity of verniers

A. 300 mm x 450 mm

C. 450 mm x 600 mm

D. 750 mm x 900 mm

A. convex

C. plano-convex

D. plano-concave

A. +50 m, +86.6 m

C. +70.7 m,-50 m

D. +50m, -86.6 m

A. altitude bubble on index frame if it is to be used as a level

B. altitude bubble on telescope if it is to be used as a level

C. altitude bubble on index frame

D. correct answer is?

E. altitude bubble on telescope

B. makes the correction due to sag equal to zero

C. makes the correction due to pull equal to zero

D. is used at the time of standardising the tape

A. much closer to the objective lens than to the eye piece

C. midway between eye piece and objective lens

D. anywhere between eye-piece and objective lens

B. on its outer spindle with a relative motion between the vernier and graduated scale of lower plate

C. on its outer spindle without a relative motion between the vernier and gra-duated scale of lower plate

D. on its inner spindle without a relative motion between the vernier and the graduated scale of lower plate

A. trigonometrical levelling

B. barometric levelling

C. hypsometry

A. A contour is not necessarily a closed curve

C. A contour represents a ridge line if the concave side of lower value contour lies towards the higher value contour

D. All of the above statements are correct

A. Slope of a hill cannot be determined with the help of contours

C. Inter-visibility of points on a contour map cannot be ascertained

D. Direct method of contouring is cheaper than indirect method

A. larger if the time available is more

B. larger for accurate works

D. directly proportional to the flatness of ground

A. 20

B. 60

D. 45

A. require slope and tension corrections

B. require slope correction

C. require tension correction

A. measuring angle and distance from one transit station

C. measuring distance from two points on traverse line

D. measuring angle at one station and distance from other

B. increasing the viscosity of liquid

C. decreasing the length of bubble

D. decreasing the radius of curvature of tube

B. takes less time

C. gives more accurate problem

D. none of the above

A. to support the main part of the instrument

C. to provide a means for leveling the theodolite

D. to attach the theodolite to the tripod

A. degree of accuracy required

B. scale of plotting

D. method of setting out the perpendiculars and nature of ground

A. characteristics of ground

B. correct answer is ?

C. scale of plan

D. contour interval

A. compound curve

B. reverse curve

D. transition curve

A. vertical circle is to its left and the bubble of the telescope is up

C. vertical circle is to its right and the bubble of the telescope is up

D. vertical circle is to its left and the bubble of the telescope is down