Surveying Set 1

Civil Engineering

Practice Mode Next
On This Page

This set of Surveying Multiple Choice Questions & Answers (MCQs) focuses on Surveying Set 1

Q1 | 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
  • 4 chains
  • 6 chains
  • 120 m
  • 180m
Answer: 6 chains
Q2 | A metallic tape is made of
  • steel
  • invar
  • linen
  • cloth and wires
Answer: cloth and wires
Q3 | For a well-conditioned triangle, no angle should beless than
  • 20°
  • 30°
  • 45°
  • 60°
Answer: 30°
Q4 | The angle of intersection of the two plane mirrors ofan optical square is
  • 30°
  • 45°
  • 60°
  • 90°
Answer: 45°
Q5 | The allowable length of an offset depends upon the
  • degree of accuracy required
  • method of setting out the perpendiculars and nature of ground
  • scale of plotting
  • all of the above
Answer: all of the above
Q6 | Which of the following angles can be set out with the help of French cross staff?
  • 45° only
  • 90° only
  • either 45° or 90°
  • any angle
Answer: either 45° or 90°
Q7 | Which of the following methods of offsets involves less measurement on theground?
  • method of perpendicular offsets
  • method of oblique offsets
  • method of ties
  • all involve equal measurement on the ground
Answer: method of perpendicular offsets
Q8 | The permissible error in chaining for measurement with chain on rough or hillyground is
  • 1 in 100
  • 1 in 250
  • 1 in 500
  • 1 in 1000
Answer: 1 in 250
Q9 | The correction for sag is
  • always additive
  • always subtractive
  • always zero
  • sometimes additive and sometimes subtractive
Answer: always subtractive
Q10 | Cross staff is an instrument used for
  • measuring approximate horizontal angles
  • setting out right angles
  • measuring bearings of the lines
  • none of the above
Answer: setting out right angles
Q11 | Normal tension is that pull which
  • is used at the time of standardising the tape
  • neutralizes the effect due to pull and sag
  • makes the correction due to sag equal to zero
  • makes the correction due to pull equal to zero
Answer: neutralizes the effect due to pull and sag
Q12 | Which of the following is not used in measuring perpendicular offsets ?
  • line ranger
  • steel tape
  • optical square
  • cross staff
Answer: line ranger
Q13 | If the length of a chain is found to be short on testing, it can be adjusted by
  • straightening the links
  • removing one or more small circular rings
  • closing the joints of the rings if opened out
  • all of the above
Answer: straightening the links
Q14 | The maximum tolerance in a 20 m chain is
  • ±2 mm
  • ±3 mm
  • ±5 mm
  • ±8 mm
Answer: ±5 mm
Q15 | For accurate work, the steel band should always be used in preference to chainbecause the steel band
  • is lighter than chain
  • is easier to handle
  • is practically inextensible and is not liable to kinks when in use
  • can be easily repaired in the field
Answer: is practically inextensible and is not liable to kinks when in use
Q16 | The length of a chain is measured from
  • centre of one handle to centre of other handle
  • outside of one handle to outside of other handle
  • outside of one handle to inside of other handle
  • inside of one handle to inside of other handle
Answer: outside of one handle to outside of other handle
Q17 | Select the incorrect statement.
  • The true meridians at different places are parallel to each other.
  • The true meridian at any place is not variable.
  • The true meridians converge to a point in northern and southern hemispheres.
  • The maps prepared by national survey departments of any country are based on true meridi
Answer: The true meridians at different places are parallel to each other.
Q18 | If the true bearing of a line AB is 269° 30?, then the azimuthof the line AB is
  • 0° 30?
  • 89° 30?
  • 90° 30?
  • 269° 30?
Answer: 90° 30?
Q19 | In the prismatic compass
  • the magnetic needle moves with the box
  • the line of the sight does not move with the box
  • the magnetic needle and graduated circle do not move with the box
  • the graduated circle is fixed to the box and the magnetic needle always remains in the N-S direction
Answer: the magnetic needle and graduated circle do not move with the box
Q20 | For a line AB
  • the forebearing of AB and back bearing of AB differ by 180°
  • the forebearing of AB and back bearing of BA differ by 180°
  • both (a) and (b) are correct.
  • none is correct
Answer: the forebearing of AB and back bearing of AB differ by 180°
Q21 | Local attraction in compass surveying may exist due to
  • incorrect levelling of the magnetic needle
  • loss of magnetism of the needle
  • friction of the needle at the pivot
  • presence of magnetic substances near the instrument
Answer: presence of magnetic substances near the instrument
Q22 | In the quadrantal bearing system, a whole circle bearing of 293° 30? can be expressed as
  • W23°30’N
  • N66°30’W
  • S113°30’N
  • N23°30’W
Answer: N66°30’W
Q23 | The prismatic compass and surveyor’s compass
  • give whole circle bearing (WCB) of a line and quadrantal bearing (QB) of a line respectively
  • both give QB of a line and WCB of a line
  • both give QB of a line
  • both give WCB of a line
Answer: give whole circle bearing (WCB) of a line and quadrantal bearing (QB) of a line respectively
Q24 | The horizontal angle between the true meridian and magnetic meridian at aplace is called
  • azimuth
  • declination
  • local attraction
  • magnetic bearing
Answer: declination
Q25 | A negative declination shows that the magnetic meridian is to the
  • eastern side of the true meridian
  • western side of the true meridian
  • southern side of the true meridian
  • none of the above
Answer: western side of the true meridian
Next