Practice Test: Question Set - 14
1. The suitable contour interval for a map with scale 1 : 10000 is
- (A) 2 m
- (B) 5 m
- (C) 10 m
- (D) 20 m
2. In an adjusted level, when the bubble is central, the axis of the bubble tube becomes parallel to
- (A) Line of
sight
- (B) Line
of collimation
- (C) Axis
of the telescope
- (D) None
of these
3. Ranging is an operation of
- (A) Reconnaissance
- (B) Judging
the distance
- (C) Determination
of slope
- (D) Establishing
intermediate points between terminals
4. Locating the position of a plane table station with reference to three known points, is known as
- (A) Intersection
method
- (B) Radiation
method
- (C) Resection
method
- (D) Three
point problem
5. If f1 and f2 are the distances from the optical centre of a convex lens of focal length ‘f’ to conjugate two points P1 and P2 respectively, the following relationship holds good
- (A) f = f1 + f2
- (B) f = ½
(f1 + f2)
- (C) 1/f = 1/f1 + 1/f2
- (D) None of these
6. If the intercept on a vertical staff is observed as 0.75 m from a tachometer, the horizontal distance between tachometer and staff
- (A) 7.5 m
- (B) 25 m
- (C) 50 m
- (D) 75 m
7. Simpson's rule for calculating areas states that the area enclosed by a curvilinear figure divided into an even number of strips of equal width, is equal to
- (A) Half the
width of a strip, multiplied by the sum of two extreme offsets, twice the sum
of remaining odd offsets, and thrice the sum of the even offsets
- (B) One-third
the width of a strip, multiplied by the sum of two extreme offsets, twice the
sum of remaining odd offsets and four times the sum of the even offsets
- (C) One-third
the width of a strip, multiplied by the sum of two extreme offsets, four times
the sum of the remaining odd offsets, and twice the sum of the even offsets
- (D) One-sixth
the width of a strip, multiplied by the sum of the two extreme offsets, twice
the sum of remaining odd offsets and four times the sum of the even offsets
8. The ratio of the distances at which a stated length can be distinguished by the telescope and the human eye, respectively, is called
- (A) Brightness
of telescope
- (B) Magnification
of telescope
- (C) Resolving
power of telescope
- (D) None of
these
9. The radius of a simple circular curve is 300 m and length of its specified chord is 30 m. The degree of the curve is
- (A) 5.73°
- (B) 5.37°
- (C) 3.57°
- (D) 3.75°
10. 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
- (A) (R - S)
tan θ/2 - L/2
- (B) (R + S)
tan θ/2 - L/2
- (C) (R + S)
tan θ/2 + L/2
- (D) (R - S)
tan θ/2 + L/2
11. A series of closely spaced contour lines represents a
- (A) Steep
slope
- (B) Gentle slope
- (C) Uniform
slope
- (D) Plane
surface
12. In an internal focusing telescope
- (A) The
objective is at a fixed distance from the diaphragm
- (B) The
focusing is done by the sliding of a divergent lens
- (C) The focusing
divergent lens is situated at about the middle of the tube
- (D) All the
above
13. During secular variation of magnetic meridian at different places
- (A) Range
of oscillations is constant
- (B) Period
of oscillation is constant
- (C) Range and
period of oscillation both vary
- (D) Period
of oscillation only varies
14. Correction per chain length of 100 links along a slope of α radians, is
- (A) 100 α2
- (B) 100 α
- (C) 100 α3
- (D) 100 α-1
15. 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
- (A) Correctly
focussed
- (B) Not
correctly focussed
- (C) Said to have
parallax
- (D) Free from
parallax