Engineering MCQ Quiz Hub

1. Hydrographic surveys deal with the mapping of
large water bodies
heavenly bodies
mountaineous region
canal system

2. An ideal vertical curve to join two gradients, is
circular
parabolic
elliptical
hyperbolic

3. Pick up the correct statement from the following :
the eyepiece plays no part in defining the line of sight
the diaphragm plays no part in defining the line of sight
the optical centre of the objective plays no part in defining the line of sight
none of these.

4. The intercept of a staff
is maximum if the staff is held truly normal to the line of sight.
is minimum if the staff is held truly normal to the line of sight.
decreases if the staff is tilted away from normal
increases if the staff is tilted towards normal.

5. The radius of curvature of the arc of the bubble tube is generally kept
10 m
25 m
50 m
100 m

6. If S is the length of a subchord and R is the radius of simple curve, the angle of deflection between its tangent and sub-chord, in minutes, is equal to
573 S/R
573 R/S
171.9 S/R
1718.9 S/R.

7. The real image of an object formed by the objective, must lie
in the plane of cross hairs
at the centre of the telescope
at the optical centre of the eye-piece
anywhere inside the telescope.

8. In chain surveying tie lines are primarily provided
to check the accuracy of the survey
to take offsets for detail survey
to avoid long offsets from chain lines
to increase the number of chain lines.

9. Pick up the correct statement from the following :
the tangent screw enables to give small movement under conditions of smooth and positive control
standing on the tripod is the levelling head or trib arch
the levelling screws are used to tilt the instrument so that its rotation axis is truly vertical
all the above.

10. One of the Lehmann's rules of plane tabling, is
location of the instrument station is always distant from each of the three rays from the known points in proportion to their distances
when looking in the direction of each of the given points, the instrument station will be on the right side of one and left side of the other ray
when the instrument station is outside the circumscribing circle its location is always on the opposite side of the ray to the most distant point as the inter-section of the other two rays
none of these.

11. The accuracy of measurement in chain surveying, does not depend upon
length of the offset
scale of the plotting
importance of the features
general layout of the chain lines.

12. Closed contours of decreasing values towards their centre, represent
a hill
a depression
a saddle or pass
a river bed.

13. Diopter is the power of a lens having a focal length of
25 cm
50 cm
75 cm
100 cm

14. An imaginary line joining the points of equal elevation on the surface of the earth, represents
contour surface
contour gradient
contour line
level line

15. The 'fix' of a plane table station with three known points, is bad if the plane table station lies
in the great triangle
outside the great triangle
on the circumference of the circumscribing circle
none of these.

16. In chain surveying field work is limited to
linear measurements only
angular measurements only
both linear and angular measurements
all the above.

17. Two concave lenses of 60 cm focal length are cemented on either side of a convex lens of 15 cm focal length. The focal length of the combination is
10 cm
20 cm
30 cm
40 cm

18. One of the tacheometric constants is additive, the other constant, is
subtractive constant
multiplying constant
dividing constant
indicative constant.

19. The limiting length of an offset does not depend upon
accuracy of the work
method of setting out perpendiculars
scale of plotting
indefinite features to be surveyed.

20. In quadrantal bearing system, back bearing of a line may be obtained from its forward bearing, by
adding 180°, if the given bearing is less than 180°
subtracting 180°, if the given bearing, is more than 180°
changing the cardinal points, i.e. substituting N for S and E for W and vice-versa
none of these.

21. Pick up the correct statement from the following:
the theodolite in which telescope can be rotated in vertical plane is called a transit
when the vertical circle is to the left of the telescope during observation, it is called to be in left face
when the vertical circle is to the right of the telescope during observation, it is called to be in right face
all the above.

22. Pick up the method of surveying in which field observations and plotting proceed simultaneously from the following
chain surveying
compass surveying
plan table surveying
tacheometric surveying.

23. While viewing through a level telescope and moving the eye slightly, a relative movement occurs between the image of the levelling staff and the cross hairs. The instrument is
correctly focussed
not correctly focussed
said to have parallax
free from parallax.

24. Accuracy of 'fix' by two point problem, is
bad
good
not reliable
unique.

25. A bearing of a line is also known as
magnetic bearing
true bearing
azimuth
reduced bearing

26. True meridians are generally preferred to magnetic meridians because
these converge to a point
these change due to change in time
these remain constant.
None of these.

27. Pick up the correct statement from the following :
the apparent error on reversal is twice the actual error
the correction may be made equal to half the observed discrepancy.
the good results may be obtained from a defective instrument by reversing and taking the mean of two erroneous results
all the above.

28. The most reliable method of plotting a theodolite traverse, is
by consecutive co-ordinates of each station
by independent co-ordinates of each station
by plotting included angles and scaling off each traverse leg
by the tangent method of plotting.

29. The difference of level between a point below the plane of sight and one above, is the sum of two staff readings and an error would be produced equal to
the distance between the zero of gradient and the foot of the staff
twice the distance between the zero of graduation and the foot of the staff
thrice the distance between the zero of graduation and the foot of the staff
none of the above.

30. Offsets are measured with an accuracy of 1 in 40. If the point on the paper from both sources of error (due to angular and measurement errors) is not to exceed 0.05 cm on a scale of 1 cm = 20 m, the maximum length of offset should be limited to
14.14
28.28 m
200 m
none of these.

31. The bearings of the lines AB and BC are 146° 30' and 68° 30'. The included angle ABC is
102°
78°
45°
none of these.

32. For a closed traverse the omitted measurements may be calculated
length of one side only
bearing of one side only
both length and bearing of one side
all the above.

33. The slope correction for a length of 30 m along a gradient of 1 in 20, is
3.75 cm
0.375 cm
37.5 cm
2.75 cm.

34. The main principle of surveying is to work
from part to the whole
from whole to the part
from higher level to the lower level
from lower level to higher level.

35. For the construction of highway (or railway)
longitudinal sections are required
cross sections are required
both longitudinal and cross sections are required
none of these.

36. If the radius of a simple curve is R, the length of the chord for calculating offsets by the method of chords produced, should not exceed.
R/10
R/15
R/20
R/25

37. The sensitiveness of a level tube decreases if
radius of curvature of its inner surface is increased
diameter of the tube is increased
length of the vapour bubble is increased
both viscosity and surface tension are increased.

38. 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.

39. ABCD is a regular parallelogram plot of land whose angle BAD is 60°. If the bearing of the line AB is 30°, the bearing of CD, is
90°
120°
210°
270°

40. Keeping the instrument height as 1.5 m, length of staff 4 m, the slope of the ground as 1 in 10, the sight on the down-slope, must be less than
30 m
25 m
20 m
15 m

41. Pick up the correct statement from the following :
Box sextant is used for the measurement of horizontal angles
Cross staff is used for setting out right angles
Gradiometer is used for setting out any required gradient
All the above