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
The foot of the perpendicular on the picture plane through the optical centre of the camera lens, is known as
A Isocenter
B Principal point
C Perspective centre
D Plumb line
Find the power of a convex lens if the image formed is at a distance of 25 cm from the lens when the object is placed on the other side of the lens at 12 cm from the optical centre?
A -4.33 diopters
B 12.33 diopters
C -12.33 diopters
D 4.33 diopters
The point where vertical line passing through the perspective centre intersects the plane of the photograph, is known as
A Photo plumb point
B Plumb point
C Nadir point
D Isocenter
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
Fahim and Rishad both started at the same time from point A to point B at speeds of 52 kmph and 39 kmph respectively on the same road. As soon as Fahim reaches point B, he turns back, stats toward point A on the same road, and meets Rishad on the way. How far from point B do the two of them meet, if the distance between the points is 70 km?
A 20 km
B 30 km
C 10 km
D 25 km
If ‘f’ is the focal length of the camera lens and ‘θ’ is the angle of tilt, the distance of the plumb point from the principal point will be
A f sin θ
B f cos θ
C f tan θ
D f sec θ
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
A plate with an elliptical hole in the centre, with semi-major axis (a) perpendicular to the direction of loading and semi-minor axis (b) along the direction of loading, is subjected to a pull P. The maximum stress induced at the edge of the hole is equal to (where $$\sigma $$ = Stress for a plate with no hole i.e. nominal stress)
A $$\sigma \left( {1 + \frac{{\text{b}}}{{2{\text{a}}}}} \right)$$
B $$\sigma \left( {1 + \frac{{2{\text{a}}}}{{\text{b}}}} \right)$$
C $$\sigma \left( {1 + \frac{{\text{b}}}{{3{\text{a}}}}} \right)$$
D $$\sigma \left( {1 + \frac{{3{\text{a}}}}{{\text{b}}}} \right)$$
In a single point tool, the angle between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base, is known as
A Side relief angle
B End relief angle
C Back rake angle
D Side rake angle

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