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Q1. | Perpendicular offset from a tangent to the junction of a transition curve and circular curve is equal to. |

A. | shift [Wrong Answer] |

B. | twice the shift [Wrong Answer] |

C. | thrice the shift [Wrong Answer] |

D. | four times the shift. [Correct Answer] |

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Explanation:-
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**Also Read Similar Questions Below :**

⇒ With the rise of temperature, the sensitivity of a bubble tube

decreases

increases

remains unaffected

none of the above

⇒ The magnetic meridian at a point can be fixed by

Bar magnets

Electro-magnets

Magnetic compass

None of the above

⇒ The latitude of a traverse leg is obtained by multiplying its length by.

tangent of its reduced bearing

sign of its reduced bearing

cosine of its reduced bearing

cosecant of its reduced bearing.

⇒ If whole circle bearing of a line is 120°, its reduced bearing is.

S 20Â° E

S 60Â° E

N 120Â° E

N 60Â° E.

⇒ A discrepancy is the difference between

True value and error

Measured value and actual value

Two measured values of the same quantity

None of the above

⇒ The scale, on which three dimensions can be measured, is known as

Plain scale

Diagonal scale

Chord scale

Vernier scale

⇒ Which of the following errors can be eliminated by taking mean of bot face observations ?

error due to imperfect graduations

error due to eccentricity of verniers

error due to imperfect adjustment of plate levels

error due to line of collimation not being perpendicular to horizontal axis

⇒ The second temporary adjustment to be done after setting up the plane table at any station will be

Levelling

Orientation

Centring and levelling done simultaneously

Sighting

⇒ A bearing noted 45° NE represents

Quadrantal system

Whole circle system

Reduced bearing system

None of the above

⇒ Invar tapes are made of an alloy of

Nickel and steel

Copper and steel

Tin and steel

Aluminium and steel

⇒ If the plane table is not horizontal in a direction at right angles to the alidade, the line of sight is parallel to the fiducial edge only for.

horizontal sights

inclined sights upward

inclined sight downward

none of these.

⇒ The operation of revolving a plane table about its vertical axis so that all lines on the sheet become parallel to corresponding lines on the ground, is known.

levelling

centering

orientation

setting.

⇒ Agate cap is fitted with a

cross staff

level

chain

prismatic compass

⇒ Imaginary line passing through points having equal magnetic declination is termed as.

isogon

agonic line

isoclinic line

none of these.

⇒ Perpendicular offset from a tangent to the junction of a transition curve and circular curve is equal to.

shift

twice the shift

thrice the shift

four times the shift.

⇒ An obstacle which obstructs chaining but not ranging may be a

Building

Lake

Hillock

Electric pole

⇒ The permissible error in chaining for measurement with chain on rough or hilly ground is

1 in 100

1 in 250

1 in 500

1 in 1000

⇒ For true difference in elevations between two points

*A*and

*B*, the level must be set up.

at any point between A and B

at the exact mid point of A and B

near the point A

near the point B.

⇒ Transit rule of adjusting the consecutive coordinates of a traverse is used where

linear and angular measurements of the traverse are of equal accuracy

angular measurements are more accurate than linear measurements

linear measurements are more accurate than angular measurements

all of the above

⇒ Pick up the correct specification of Ramsden eyepiece from the following :

it consists of two equal piano convex lenses

the curved surfaces of plano-convex lenses face each other

the two lenses are separated by a distance equal to 2/3 of the focal length of either lens.

all the above.

⇒ The difference in the lengths of an arc and its subtended chord on the earth surface for a distance of 18.2 km, is only.

1 cm

5 cm

10 cm

100 cm.

⇒ The process of turning the telescope about the vertical axis in horizontal plane is known as

transiting

reversing

plunging

swinging

⇒ Closed contours of decreasing values towards their centre, represent.

a hill

a depression

a saddle or pass

a river bed.

⇒ The power of a lens.

is reciprocal of its focal length

is positive if it is a convex lens

is negative if it is a concave lens

is measured in diopter.

⇒ In chain surveying, perpendiculars to the chain line, are set out by.

a theodolite

a prismatic compass

a level

an optical square

⇒ If the reduced bearing of a line AB is N60°W and length is 100 m, then the latitude and departure respectively of the line AB will be

+50 m, +86.6 m

+86.6 m, -50 m

+50m, -86.6 m

+70.7 m,-50 m

⇒ If the long chord and tangent length of a circular curve of radius

*R*are equal the angle of deflection, is.

30Â°

60Â°

90Â°

120Â°

⇒ Ramsden eye-piece consists of.

two convex lenses short distance apart

two concave lenses short distance apart

one convex lens and one concave lens short distance apart

two plano-convex lenses short distance apart, with the convex surfaces facing each other.

⇒ If

*R*is the radius of the main curve, θ the angle of deflection,

*S*the shift and

*L*the length of the transition curve, then, total tangent length of the curve, is.

(R - S) tan Î¸/2 - L/2

(R + S) tan Î¸/2 - L/2

(R + S) tan Î¸/2 + L/2

(R - S) tan Î¸/2 + L/2

⇒ The sag of 50 m tape weighing 4 kg under 5 kg tension is roughly.

0.043 m

0.053 m

0.063 m

0.083 m