If the general ground level of any area is 10% of the flying height, the principal points may be used as the centers of radial directions for small scale mapping even in tilted photograph up to

‘H’ is the flying height above mean ground level and ‘f’ is the principal distance of a vertical photograph. The mean scale of the photographs is

A

H × f

B

$$\frac{{\text{H}}}{{\text{f}}}$$

C

$$\frac{{\text{f}}}{{\text{H}}}$$

D

H + f

Flying height is used in case of tilted photograph.

A

False

B

True

Flying height can be determined by using tilted photograph.

A

True

B

False

The scale of a tilted photograph of focal length f taken from an altitude H, along the plate parallel through principal point is

A

$$\frac{{\text{f}}}{{{\text{H}}\sec \theta }}$$

B

$$\frac{{{\text{f}}\sec \theta }}{{\text{H}}}$$

C

$$\frac{{\text{f}}}{{\text{H}}}$$

D

$$\frac{{\text{f}}}{{{\text{H}}\cos \frac{1}{2}\theta }}$$

In the following sentence the word principal' occurs three times "The principal (1) aim of the principal (2) of the college was to help build new roads to link the area's principal (3)schools" Indicate the use(s) in which the meaning of the word “Principal is ‘chief or main',

A

Use (1)

B

Use(2)

C

Use (3)

D

Both (1) & (3)

Determine the airplane flying height to obtain the average scale of the photograph equal 1/5000. Ground surface elevations vary from 150 to 300m. Focal length of the camera lens is 150 mm.

A

997

B

975

C

1275

D

1359

A high contrast image and a dark image will have what kind of histogram respectively, when the histogram, h(rk) = nk, rk the kth gray level and nk total pixels with gray level rk, is plotted nk versus rk? The histogram that are concentrated on the dark side of gray scale. The histogram whose component are biased toward high side of gray scale. The histogram that is narrow and centered toward the middle of gray scale. The histogram that covers wide range of gray scale and the distribution of pixel is approximately uniform.

A

I) And II) respectively

B

III) And II) respectively

C

II) And IV) respectively

D

IV) And I) respectively

Which of the following statement(s) is/are correct, regarding the duties and rights of the Attorney-General for India in performance of his duties?
1. The Attorney-General for India shall give advice to the Government of India upon legal matters.
2. The Attorney-General for India shall have a right to audience in all Courts in India.
3. The Attorney-General for India shall have the right to speak in the proceedings of either House.
4. The Attorney-General for India shall not be liable to any proceedings in any court in respect of anything said by him in Parliament or any committee thereof.

A

1 and 2 only

B

1, 2 and 3 only

C

All of these statements are correct

D

1 only

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 relief displacement of a building 72 m high on photograph is 7.2 mm and its top appears 10 cm away from principal point. The flying height of the camera, is

A

500 m

B

1000 m

C

1500 m

D

2000 m

If the general ground level of any area is 10% of the flying height, the principal points may be used as the centers of radial directions for small scale mapping even in tilted photograph up to

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