Area& volume

Which of the following method is used to calculate area between irregular boundaries

• Simpson's rule

• Departure & total latitude method

• Double parallel distance

• Area by geometric method

The area of sloping surface of a protective embankment of mean height d, side slope s:1 and length L

• D*D*S

• L*D √(1+s2)

• Non of these

In the mid section formula

• The mean depth is the average of 2 consecutive section

• The area of mid sections is calculated by using mean depth

• The volume of the earthwork is calculated by multiplying the midsection area by distance between the two

• All the above

Which shaped lines indicate the presence of a ridge

• S

• V

• L

• U

Simpson's 3/8 rule is applicable only if minimum number of ordinate is

Mining dial is a simple form of

• Theodolite & compass

• Compass & clinometer

• Theodolite & clinometer

• Theodolite & sextant

Bruntons compass is the combination of

• Compass & theodolite

• Compass & clinometer

• Theodolite & clinometer

• Compass & sextant

Pentagraph is chiefly used for

• Enlarge a plan

• Reduce a plan

• Measure irregular area

• Measure area

Reflecting type instrument capable of measuring angles upto 120° & read to one minute is

• Line ranger

• Optical square

• Prism square

• Box sextant

The instrument used for setting out grade contour is

• Ceylon ghar tracer

• Proportionate compass

• Abney level

• Hand level