# Practice Test: Question Set - 08

**1. The scale of a tilted photograph of focal length**

*f*, taken from an altitude*H*, along the plate parallel through plumb point, is- (A)

*f*/

*H*

*sec*θ

- (B)

*f*

*sec*θ/

*H*

- (C)

*f*/

*H*

- (D)

*f*/

*H*

*cos*½θ

**2. G.M.T. corresponding to given mean time, equals**

- (A) L.M.T. -
East longitude in time

- (B) L.M.T. +
East longitude in time

- (C) L.M.T. -
West longitude in time

- (D) None of
these

**3. The scale of the photography taken from a height of 300 m, with a camera of focal length 15 cm, is**

- (A) 1 : 10,000

- (B) 1 : 15,000

- (C) 1 : 20,000

- (D) 1 : 30,000

**4. Rotation of the camera at exposure about horizontal axis normal to the line of flight, is known as**

- (A) Swing

- (B) Tilt

- (C) Tip

- (D) None of
these

**5. Pick up the correct statement from the following:**

- (A) The angle
between the plane of the negative and the horizontal plane containing
perspective axis is the tilt of the photograph

- (B) The
direction of maximum tilt is defined by the photo principal line

- (C) The
principal plane is truly vertical plane which contains perspective centre as
well as principal point and plumb point

- (D) All the
above

**6. In observations of equal precision, the most probable values of the observed quantities are those that render the sum of the squares of the residual errors a minimum, is the fundamental principle of**

- (A) Gauss' Mid
Latitude formula

- (B) D'Alembert's method

- (C) Legendre's
method

- (D) Least
square method

**7. The station which is selected close to the main triangulation station, to avoid intervening obstruction, is not known as**

- (A) Satellite
station

- (B) Eccentric
station

- (C) False
station

- (D) Pivot
station

**8. A plate parallel is the line on the plane of the negative**

- (A) Parallel to
the principal line

- (B) Perpendicular
to the principal line

- (C) Along the
bisector of the angle between the principal line and a perpendicular line
through principal plane

- (D) None
of these

**9. The shortest distance between two places measured along the surface of the earth, is**

- (A) Length of
the equator between their longitudes

- (B) Length of
the parallel between their longitudes

- (C) Length of
the arc of the great circle passing through them

- (D) None of
these

**10. The angular distance of a heavenly body from the equator, measured along its meridian, is called**

- (A) Declination

- (B) Altitude

- (C) Zenith
distance

- (D) Co-latitude

**11. Pick up the correct statement from the following. The difference between the longitudes of the places is obtained.**

- (A) By
subtracting their longitudes if places are in the same hemisphere

- (B) By
adding their longitudes if places are in the different hemispheres

- (C) By
subtracting the sum of their longitudes exceeding 180° from 360° if places are
in different hemispheres

- (D) All the
above

**12. The prime vertical passes through**

- (A) The east
point of the horizon

- (B) The
west point of the horizon

- (C) The zenith
point of the observer

- (D) All the
above

**13. If 16 flight lines are run perpendicular to an area 30 km wide, their spacings on a photographical map on scale 1 : 50,000 , will be**

- (A) 1 cm

- (B) 2 cm

- (C) 3 cm

- (D) 4
cm

**14. The length of a parallel of λ latitude between two meridians is equal to difference in longitudes multiplied by**

- (A)

*sin λ*

- (B)

*cos λ*

- (C)

*tan λ*

- (D)

*cot λ*

**15. For adjusting a quadrilateral whose both the diagonals are observed, the equations of conditions involved, are**

- (A) Two angle
equations and two side equations

- (B) One angle
equation and three side equations

- (C) Three angle
equations and one side equation

- (D) None of
these

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