The zenith is the point on the celestial sphere North of observer East of observer South of observer West of observer TRUE ANSWER : ? YOUR ANSWER : ?
A star is said to elongate All of these When the star When the angle at the star of the spherical triangle is 90° When the star momentarily moves vertically TRUE ANSWER : ? YOUR ANSWER : ?
Assuming human normal vision distance 25 cm, smallest measurable angle 20", and intraocular distance 6.5 cm, the smallest depth to be discerned is 1.00 mm 0.1 mm 0.5 mm 1.1 mm TRUE ANSWER : ? YOUR ANSWER : ?
In the quadrantal bearing system, a whole circle bearing of 293° 30′ can be expressed as W23°30’N S113°30’N N66°30’W N23°30’W TRUE ANSWER : ? YOUR ANSWER : ?
Overturning of vehicles on a curve can be avoided by using vertical curve reverse curve compound curve transition curve TRUE ANSWER : ? YOUR ANSWER : ?
The correction for sag is always zero always additive always subtractive sometimes additive and sometimes subtractive TRUE ANSWER : ? YOUR ANSWER : ?
The plane at right angle to the zenith-nadir line and passing through the centre of the earth, is called Celestial horizon All of these True horizon Rational horizon TRUE ANSWER : ? YOUR ANSWER : ?
The difference of parallax for a given difference in elevation is independent of Focal length of the camera Percentage of overlap Overall size of the photo graphs All listed here TRUE ANSWER : ? YOUR ANSWER : ?
Height of instrument method of levelling is quicker and less tedious for large number of intermediate sights None of these less accurate than rise and fall method more accurate than rise and fall method TRUE ANSWER : ? YOUR ANSWER : ?
If altitude bubble is provided both on index frame as well as on telescope of a theodolite, then the instrument is levelled with reference toi) altitude bubble on index frameii) altitude bubble on index frame if it is to be used as a leveliii) altitude bubble on telescopeiv) altitude bubble on telescope if it is to be used as a levelThe correct answer is only (iii) both (i) and (iv) only (i) both (ii) and (iii) TRUE ANSWER : ? YOUR ANSWER : ?