A. is lighter than chain
B. is easier to handle
C. is practically inextensible and is not liable to kinks when in use
D. can be easily repaired in the field
Related Mcqs:
- The instrument used for accurate centering in plane table survey is________________?
A. spirit level
B. alidade
C. plumbing fork
D. trough compass - The permissible error in chaining for measurement with chain on rough or hilly ground is_____________?
A. 1 in 100
B. 1 in 250
C. 1 in 500
D. 1 in 1000 - If the length of a chain is found to be short on testing, it can be adjusted by______________?
A. straightening the links
B. removing one or more small circular rings
C. closing the joints of the rings if opened out
D. all of the above - 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
C. outside of one handle to inside of other handle
D. inside of one handle to inside of other handle - The maximum tolerance in a 20 m chain is_______________?
A. ±2 mm
B. ±3 mm
C. ±5 mm
D. ±8 mm - The type of surveying which requires least office work is________________?
A. tacheomefry
B. trigonometrical levelling
C. plane table surveying
D. theodolite surveying - 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 a means for leveling the theodolite
D. none of the above - Refraction correction________________?
A. completely eliminates curvature correction
B. partially eliminates curvature correction
C. adds to the curvature correction
D. has no effect on curvature correction - The difference of levels between two stations A and B is to be determined. For best results, the instrument station should be_______________?
A. equidistant from A and B
B. closer to the higher station
C. closer to the lower station
D. as far as possible from the line AB - If the focal length of the object glass is 25 cm and the distance from object glass to the trunnion axis is 15 cm, the additive constant is_______________?
A. 0.1
B. 0.4
C. 0.6
D. 1.33
