## Surveying MCQ Practice Questions (Civil Engineering) Set 1

##### Pick up the incorrect statement from the following:

Options are :

• The straight distance between end points of a suspended tape is reduced by an amount called the sag correction
• A 100 m tape of cross section 10 mm x 0.25 mm stretches about 10 mm under 5 kg pull
• While measuring a distance with a tape of length 100.005 m, the distance to be increasing by 0.005 m for each tape length
• An increase in temperature causes a tape to increase in length and the measured distance is too large

Answer :An increase in temperature causes a tape to increase in length and the measured distance is too large

Options are :

• 316° 10'
• 348° 08'
• 43° 52'
• 158° 28'

##### The combined effect of curvature and refraction over a distance L kilometres is:

Options are :

• 67.2 L^(2) mm
• 64.5 L^(2) mm
• None of these
• 76.3 L^(2) mm

Options are :

• 502.685 m
• 501.340 m
• 504.030 m
• 502.585 m
• 501.345 m

##### Location of contour gradient for a high way is best set out from:

Options are :

• Bottom to the ridge
• Ridge down the hill

Options are :

• B
• C
• D
• A

##### The staff reading at a distance of 80 m from a level with the bubble at its centre is 1.31 m. When the bubble is moved by 5 divisions out of the centre, the reading is 1.39 mThe angular value of the one division of the bubble, is:

Options are :

• None of these
• 28.8 secs
• 41.25 secs
• 14.52 secs
• 25.05

Options are :

• S 90° W
• W 90°
• N 90° W
• 90° W

Options are :

• D
• B
• A
• C

##### Tilt of the staff in stadia tacheometry increases the intercept if it is:

Options are :

• Away from the telescope pointing up-hill
• None of these
• Towards the telescope pointing up-hill
• Away from the telescope pointing down hill

Answer :Away from the telescope pointing up-hill

##### The constant vertical distance between two adjacent contours, is called:

Options are :

• Vertical equivalent
• Horizontal interval
• Horizontal equivalent
• Contour interval

Options are :

• 105.0 m
• 104.5 m
• 104.0 m
• 105.5 m

##### For taking offsets with an optical square on the right hand side of the chain line, it is held:

Options are :

• By left hand up side down
• By right hand upside down
• By right hand upright
• By left hand upright

##### Resolving power of a telescope depends on:

Options are :

• The diameter of the aperture
• All the above
• The pupil aperture of the eye
• The diameter of the object glass

Options are :

• 90°
• 360°
• 180°

##### The defect of a lens whereby rays of white light proceeding from a point get dispersed into their components and conveyed to various foci, forming a blurred and coloured image is known as:

Options are :

• Spherical aberration
• Chromatic aberration
• Coma
• Astigmatism

##### If the chain line which runs along N-S direction is horizontal and the ground in E-W direction is sloping:

Options are :

• It is possible to set offsets correctly on east side
• It is not possible to set offsets correctly on west side
• It is possible to set offsets correctly on east side
• It is possible to set offsets correctly on both sides

Answer :It is possible to set offsets correctly on both sides

##### A lens or combination of lenses in which the following defect is completely eliminated is called aplanatic:

Options are :

• Spherical aberration
• Chromatic aberration
• Coma
• Astigmatism

##### If h1 and h2 are the differences in level between ground and the formation levels, m is the slope of the sloping sides. D is the distance between the cross sections then, prismoidal correction for a level section is:

Options are :

• D/2m(h1 - h2)
• D/6m(h1 - h2)^(3)
• D/6m(h1 + h2)^(2)
• D/6m(h1 - h2)^(2)
• D/3m(h1 - h2)

Options are :

• 1870
• 1770
• 1900
• 1670

##### To orient a plane table at a point with two inaccessible points, the method generally adopted, is:

Options are :

• Two point problem
• Intersection
• Resection

##### In a perfect prismatic compass:

Options are :

• All the above
• Needle is always kept sensitive
• Ends of the needle and pivot are in same vertical and horizontal planes
• Pivot is vertically over the centre of the graduated circle
• Magnetic axis and geometric axis of the needle coincide

Options are :

• 02 cm
• 0.15 cm
• 0.1 cm
• 0.02 cm

##### Planimeter is used for measuring:

Options are :

• None of these
• Slope angle
• Area
• Volume

Options are :

• 0.030 m
• 0.045 m
• 0.015 m
• 0.060 m

Options are :

• f/i
• i/f
• f/d
• (f + d)

##### It is more difficult to obtain good results while measuringhorizontal distance by stepping:

Options are :

• Up-hill
• In plane areas
• Down-hill
• In low undulations

##### The included angles of a theodolite traverse, are generally measured:

Options are :

• Clockwise from the back station
• Anti-clockwise from the forward station
• Clockwise from the forward station
• Anti-clockwise from the back station

Answer :Clockwise from the back station

Options are :

• Proof lines
• All of these
• Tie lines
• Check clines

Options are :

• 3.275 m
• 3.290 m
• 3.300 m
• 2.790 m