# Practice Test: Question Set - 11

**1. The type of surveying which requires least office work is**

- (A) Tachometry

- (B) Trigonometrical
levelling

- (C) Plane
table surveying

- (D) Theodolite
surveying

**2. The main plate of a transit is divided into 1080 equal divisions. 60 divisions of the Vernier coincide exactly with 59 divisions of the main plate. The transit can read angles accurate upto**

- (A) 5"

- (B) 10"

- (C) 15"

- (D) 20"

**3. The ratio of the length of long chord and the tangent length of a circular curve of radius**

*R*deflecting through angle Δ, is- (A) sin (Δ/2)

- (B) cos (Δ/2)

- (C) 2
sin (Δ/2)

- (D) 2
cos (Δ/2)

**4. The correction to be applied to each 30 metre chain length along θ° slope, is**

- (A) 30 (sec θ -
1) m

- (B) 30 (sin θ -
1) m

- (C) 30 (cos θ -
1) m

- (D) 30 (tan θ -
1) m

**5. For a closed traverse the omitted measurements may be calculated**

- (A) Length of
one side only

- (B) Bearing of
one side only

- (C) Both
length and bearing of one side

- (D) All the
above

**6. Horizontal distances obtained by thermometric observations**

- (A) Require
slope correction

- (B) Require
tension correction

- (C) Require
slope and tension corrections

- (D) Do not
require slope and tension corrections

**7. A clinometer is used for**

- (A) Measuring
angle of slope

- (B) Correcting
line of collimation

- (C) Setting out
right angles

- (D) Defining
natural features

**8. If**

*L*is the specified length of a tape,*L*_{1}its actual length and*S*the measured distance, then, the true distance is given by the formula,- (A) (

*L*/

_{1}*L*)

*×*

*S*

- (B) (

*L*/

*L*)

_{1}*×*

*S*

- (C) (

*L - L*)/

_{1}*L*×

*S*

- (D) (

*L*/

_{1}*L*)

*×*

^{2}*S*

**9. In a perfect prismatic compass**

- (A) Magnetic
axis and geometric axis of the needle coincide

- (B) Ends
of the needle and pivot are in same vertical and horizontal planes

- (C) Pivot
is vertically over the centre of the graduated circle

- (D) All the
above

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

- (A) Box sextant
is used for the measurement of horizontal angles

- (B) Cross staff
is used for setting out right angles

- (C) Gradiometer
is used for setting out any required gradient

- (D) All the
above

**11. Sensitiveness of a level tube is designated by**

- (A) Radius of
level tube

- (B) Length of
level tube

- (C) Length of
bubble of level tube

- (D) None of the
above

**12. The formula for the horizontal distances for inclined sights, on staff held normalis (f/i)**

*s*cos θ + (*f*+*d*) cos θ ±*h*sin θ- (A) Minus sign
is used for angle of depression

- (B) Plus sign is
used for angle of depression

- (C) Minus sign
is used for angle of elevation

- (D) None of
these

**13. Accidental or compensating errors of length ‘**

*L’*are proportional to- (A)

*L*

- (B)

*√L*

- (C) ∛

*L*

- (D) 1/√

*L*

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

- (A) Tangent of
its reduced bearing

- (B) Sign of its
reduced bearing

- (C) Cosine of
its reduced bearing

- (D) Cosecant of
its reduced bearing

**15. If**

*D*is the degree of the curve of radius*R*, the exact length of its specified chord, is- (A) Radius of
the curve × sine of half the degree

- (B) Diameter of
the curve × sine of half the degree

- (C) Diameter of
the curve × cosine of half the degree

- (D) Diameter of
the curve × tangent of half the degree

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