# Practice Test: Question Set - 05

**1. For a tachometer the additive and multiplying constants are respectively**

- (A) 0 and 100

- (B) 100 and 0

- (C) 0 and 0

- (D) 100 and 100

**2. Correct distance obtained by an erroneous chain is:**

- (A) (Erroneous
chain length/Correct chain length) × Observed distance

- (B) (Correct
chain length/Erroneous chain length) × Observed distance

- (C) (Correct
chain length/Observed distance) × Erroneous chain length

- (D) None of
these

**3. An imaginary line lying throughout on the surface of the earth and preserving a constant inclination to the horizontal, is called**

- (A) Contour line

- (B) Contour
gradient

- (C) Level line

- (D) Line of
gentle scope

**4. The constant vertical distance between two adjacent contours, is called**

- (A) Horizontal
interval

- (B) Horizontal
equivalent

- (C) Vertical
equivalent

- (D) Contour
interval

**5. If a 30 m chain diverges through a perpendicular distance**

*d*from its correct alignment, the error in length, is- (A) (

*d*

^{2}/60) m

- (B) (

*d*

^{2}/30) m

- (C) (

*d*

^{2}/40) m

- (D) (

*d*/30) m

**6. The sensitivity of a bubble tube can be increased by**

- (A) Increasing
the diameter of the tube

- (B) Decreasing
the length of bubble

- (C) Increasing
the viscosity of liquid

- (D) Decreasing
the radius of curvature of tube

**7. A standard steel tape of length 30 m and cross-section 15 × 1.0 mm was standardised at 25°C and at 30 kg pull. While measuring a base line at the same temperature, the pull applied was 40 kg. If the modulus of elasticity of steel tape is 2.2 × 10**

^{6}kg/cm^{2}, the correction to be applied is- (A) - 0.000909 m

- (B) + 0.0909 m

- (C) 0.000909 m

- (D) None of
these

**8. Pick up the correct statement from the following:**

- (A) It is
difficult to eliminate an error completely at first trial

- (B) Instability
of the instrument makes it almost impossible to adjust it satisfactorily

- (C) Adjustment
screws must be left bearing firmly but should never be forced

- (D) All the
above

**9. The properties of autogenous curve for automobiles are given by**

- (A) True spiral

- (B) Cubic
parabola

- (C) Bernoulli's
Lemniscate

- (D) Clothoid
spiral

**10. In chain surveying field work is limited to**

- (A) Linear
measurements only

- (B) Angular
measurements only

- (C) Both linear
and angular measurements

- (D) All the
above

**11. The difference of levels between two stations A and B is to be determined. For best results, the instrument station should be**

- (A) Equidistant
from A and B

- (B) Closer to
the higher station

- (C) Closer to
the lower station

- (D) As far as
possible from the line AB

**12. The curve composed of two arcs of different radii having their centres on the opposite side of the curve, is known**

- (A) A simple
curve

- (B) A compound
curve

- (C) A reverse
curve

- (D) A vertical
curve

**13. Pick up the correct statement from the following:**

- (A) An
observation or the resulting reading with the level on a levelling staff is
called sight

- (B) A back sight
is the first sight taken after setting up the instrument in any position

- (C) The first
sight on each change point is a fore sight

- (D) All the above

**14. The angle of intersection of a curve is the angle between**

- (A) Back
tangent and forward tangent

- (B) Prolongation
of back tangent and forward tangent

- (C) Forward
tangent and long chord

- (D) Back
tangent and long chord

**15. If ‘**

*L’*is the perimeter of a closed traverse, Î”*D*is the closing error in departure, the correction for the departure of a traverse side of length ‘*l’*, according to Bowditch rule, is- (A) Î”

*D*×

*L*/

*l*

- (B) Î”

*D*×

*l*/

^{2}*L*

- (C)

*L*×

*l*/Î”

*D*

- (D) Î”

*D*×

*l*/

*L*

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