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 theodoliteD. none of…
The process of turning the telescope about the vertical axis in horizontal plane is known as______________? A. transiting B. reversing C. plungingD. swinging
The graduations in prismatic compass_____________? 1. are inverted2. are upright3. run clockwise having 0° at south4. run clockwise having 0° at north The correct answer is ?A. (1) and (3) B. (1) and (4) C. (2) and (3) D. (2)…
If the magnetic bearing of the sun at a place at noon in southern hemisphere is 167°, the magnetic declination at that place is________________? A. 77° N B. 23° SC. 13° E D. 13° W
Agate cap is fitted with a_________________? A. cross staff B. level C. chainD. prismatic compass
A negative declination shows that the magnetic meridian is to the________________? A. eastern side of the true meridianB. western side of the true meridian C. southern side of the true meridian D. none of the above
The prismatic compass and surveyor’s compass________________? A. give whole circle bearing (WCB. of a line and quadrantal bearing (QB. of a line respectively B. both give QB of a line and WCB of a line C. both give QB of…
Local attraction in compass surveying may exist due to________________? A. incorrect levelling of the magnetic needle B. loss of magnetism of the needle C. friction of the needle at the pivotD. presence of magnetic substances near the instrument
The horizontal angle between the true meridian and magnetic meridian at a place is called______________? A. azimuthB. declination C. local attraction D. magnetic bearing
In the quadrantal bearing system, a whole circle bearing of 293° 30′ can be expressed as______________? A. W23°30’NB. N66°30’W C. S113°30’N D. N23°30’W