Related Questions

The point where a vertical line through the optical centre of the camera lens intersects the ground, is known as
A Ground principal point
B Ground plumb point
C Iso-centre
D Perspective centre
For plane ground the scale of a vertical photograph will be same as that of a tiled photograph along the photo parallel through
A Isocenter
B Plumb point
C Principal point
D None of these
The point on the photograph where bisector between the vertical line through optical centre of the camera lens and the plate perpendicular meets, is known as
A Principal point
B Isocenter
C Plumb point
D Perspective centre
The orthogonal projection of the perspective centre on a tilted photograph, is called
A Nadir
B Isocenter
C Principal point
D Plumb point
The product of the distances of plumb point and horizon point of a vertical photograph from its principal point, is
A f2
B 2f2
C 3f2
D $$\frac{1}{2}$$f
The plane at right angle to the zenith-nadir line and passing through the centre of the earth, is called
A Rational horizon
B True horizon
C Celestial horizon
D All the above
The circle in which a plane tangent to the earth's surface at the point of observation, intersects the celestial sphere, is called
A Visible horizon
B Sensible horizon
C Celestial horizon
D True horizon
Point A is 10 miles West of Point B. Point b is 30 miles North of pint C. Point C is 20 miles East of Point D. What is the distance (in miles) between Point A and Point D?
A 1010
B 1020
C 2010
D 3010
Point A is 10 km west of point B. Point B is 30 km north of point C. Point C is 20 km east of point D. What is the distance between point A and D?
A 1020Km
B 1010Km
C 2010Km
D 3010Km
Plane P take off at 2:00 am and flies at a constants speed of Xmph. Plane Q takes off at 3:30 am and flies the same forte as plane p but travels at a constant X, how many hours after 3:30 am will plane Q overtake plan P?
A 1.5x/y +0.5
B 2
C 4
D 5

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