A. radius of level tube
B. length of level tube
C. length of bubble of level tube
D. none of the above
Related Mcqs:
- If the staff is not held vertical at a level¬ling station, the reduced level calculated from the observation would be_______________?
A. true R.L
B. more than true R.L
C. less than true R.L
D. none of the above - 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 sensitivity of a bubble tube can be increased by________________?
A. increasing the diameter of the tube
B. decreasing the length of bubble
C. increasing the viscosity of liquid
D. decreasing the radius of curvature of tube - A’level line’is a______________?
A. horizontal line
B. line parallel to the mean spheriodal surface of earth
C. line passing through the center of cross hairs and the center of eye piece
D. line passing through the objective lens and the eye-piece of a dumpy or tilting level - 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________________?
A. 98.70
B. 100.00
C. 102.30
D. 103.30 - 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
D. none of the above - The difference between a level line and a horizontal line is that_______________?
A. level line is a curved line while hori-zontal line is a straight line
B. level line is normal to plumb line while horizontal line may not be normal to plumb line at the tangent point to level line
C. horizontal line is normal to plumb line while level line may not be normal to the plumb line
D. both are same - Dumpy level is most suitable when______________?
A. the instrument is to be shifted frequently
B. fly levelling is being done over long distance
C. many readings are to be taken from a single setting of the instrument
D. all of the above - In the quadrantal bearing system, a whole circle bearing of 293° 30′ can be expressed as______________?
A. W23°30’N
B. N66°30’W
C. S113°30’N
D. N23°30’W - If in a closed traverse, the sum of the north latitudes is more than the sum of the south latitudes and also the sum of west departures is more than the sum of the east departures, the bearing of the closing line is in the________________?
A. NE quadrant
B. SE quadrant
C. NW quadrant
D. SW quadrant
