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4

Pick up the correct statement from the following:

A. If the applied tension to the tape is more than the standard, the tension correction is positive

B. If the applied tension to the tape is less than the standard, the tension correction is negative

C. If the temperature during measurement is greater than the standard temperature, the temperature correction is positive

D. All the above

Correct Answer :

D. All the above


Related Questions

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4

The angle between the observer's meridian and declination circle of a heavenly body, is known as

A. Hour angle

B. Azimuth

C. Right ascension

D. Declination

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4

Pick up the correct statement from the following:

A. Refraction correction is zero when the celestial body is in the zenith

B. Refraction correction is 33' when the celestial body is on the horizon

C. Refraction correction of celestial bodies depends upon their altitudes

D. All the above

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4

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. H/f

C. f/H

D. H + f

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4

The angle between the plane of the equator and the plane of the ecliptic, is known as obliquity of the ecliptic and its value is

A. 22° 30'

B. 23° 27'

C. 23° 30'

D. 24° 0'

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4

When a star is between the pole and the horizon, the relationship between latitude (λ), zenith distance (z) and declination δ, is

A. θ = z + δ

B. θ = δ - z

C. θ = 180° - (z + δ)

D. θ = (z + δ) - 180°

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4

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

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4

Pick up the correct statement from the following:

A. Aerial photographs may be either vertical or oblique

B. Vertical photographs are taken with the axis of camera pointing vertically downward

C. Vertical photographs are used for most accurate maps

D. All the above

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4

If S is the sum of three angles of a spherical triangle, the spherical excess equals

A. S - 90°

B. S - 180°

C. S - 270°

D. S - 360°

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4

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

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4

Pick up the correct statement from the following:

A. If the applied tension to the tape is more than the standard, the tension correction is positive

B. If the applied tension to the tape is less than the standard, the tension correction is negative

C. If the temperature during measurement is greater than the standard temperature, the temperature correction is positive

D. All the above

What is the correct answer?

4

The latitude of the observer's position, is

A. Elevation of the elevated pole

B. Declination of the observer's zenith

C. Angular distance along the observer's meridian between equator and the observer

D. All the above

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4

The position of the sun when its north declination is maximum is known as

A. Vernal equinox

B. Autumnal equinox

C. Summer solstice

D. Winter solstice

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4

If v, t and f/H are the ground speed of the aircraft, the shutter speed of the camera and the scale of the photograph respectively, then the amount of image displacement

A. i = v. t. H/f

B. i = v. f/t. H

C. i = v. t. (f/H)

D. i = t. H/v. f

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4

The altitude of a circumpolar star is maximum when it is

A. At east elongation

B. At upper culmination

C. At west elongation

D. At lower culmination

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4

The height displacement on a vertical photograph

A. Increases as the horizontal distance increases from the principal point

B. Increases as the ground elevation increases

C. Decreases as the flying height increases

D. All the above

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4

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

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4

Pick up the incorrect statement from the following:

A. In truly vertical photographs without relief angles are true at the plumb point

B. In tilted photographs without relief, angles are true at the iso-centre

C. In tilled photographs with relief, angles are true at the principal point

D. None of these

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4

At upper culmination, the pole star moves

A. Eastward

B. Westward

C. Northward

D. Southward

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4

The displacement of the pictured position of a point of h elevation on a vertical photograph taken with a camera of 30 cm focal length, from an altitude of 3000 m, is

A. 4.4 mm

B. 5.5 mm

C. 6.5 mm

D. 7.5 mm

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4

Polaris is usually observed for the determination of the latitude when it is

A. At culmination

B. At elongation

C. Neither at culmination nor at elongation

D. Either at culmination or at elongation

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4

The point on the celestial sphere vertically below the observer's position, is called

A. Zenith

B. Celestial point

C. Nadir

D. Pole

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4

The nearest star is so far away from the earth that the directions to it from two diametrically opposite points on the earth differs less than

A. 0.01 second

B. 0.001 second

C. 0.0001 second

D. None of these

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4

The net ground area of a vertical photograph 20 cm × 20 cm on scale 1 : 10,000 having overlaps 60% and 30%, is

A. 0.50 sq km

B. 0.56 sq km

C. 0.60 sq km

D. 0.64 sq km

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4

At the first point of Aeries, the sun moves

A. Northward

B. Southward

C. From south to north of the equator

D. From north to south of the equator

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4

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

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4

Latitude of the observer's position is equal to altitude of

A. North pole

B. Pole star

C. Celestial pole

D. All the above

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4

The normal longitudinal overlap is generally kept

A. 50 %

B. 60 %

C. 70 %

D. 75 %

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4

The moon rotates round the earth once in every

A. 29 days

B. 29.35 days

C. 29.53 days

D. 30 days

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4

Pick up the incorrect statement from the following. In a spherical triangle

A. Every angle is less than two right angles

B. Sum of the three angles is equal to two right angles

C. Sum of the three angles less than six right angles and greater than two right angles

D. Sum of any two sides is greater than the third

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4

The hour angle of the heavenly body for Greenwich meridian equals the hour angle of the body for any other meridian + longitude:

A. Mean sun

B. True sun

C. Vernal equinox

D. All the above