Who calculated the slope based on the following formula :

ten α = number of contours per mile  ×  contour interval / 3361

• Wentwoth

• Raiz

• Henry

• Davis

1. IRS is the mainstay of National Natural Resources Management System(NNRMS) in India.
2. Development and operationalresponsible of earth observation in India is overseen by the National Remote Sensing Agency(NRSA).

• Only 1 is correct.

• Only 2 is correct.

• Both 1 and 2 are corret.

• Neither 1 nor 2 is correct.

If Representative Fraction (RF) of a map is 1/50000 which is reduced three times , which of the following RF is correct for reduced map

• 1/2500

• 1/1000

• 1/15000

• 1/25000

1. In a Representative Fraction (RF) the numerator is always one.
2. In an RF Scale , the unit of denominator is always as of the unit of numerator.
3. R.F. is not suitable technique of showing scale on a map.
4. The statement scale eg. 1 cm to 1 km is suitabe scale on a map.

• 1 , 2 and 3 are correct

• 1 , 3 and 4 correct

• 2 , 3 and 4 are correct

• 1 , 2 and 4 are correct

In which one of the following methods interpolation is used ?

• Choroschematic

• Chorochromatic

• Isopleth

• Choropleth

Which one of the following sampling techniques is most suitable for selection of representative villages of an area with diversified geographical features ?

• Systematic

• Stratified-random

• Random

• Clustered

Which one of the following R_n values shows the random pattern of point distribution ?

• 0

• 1.0

• 1.35

• 2.14

Which one of the following is commonly used for computing the average value of river discharge ?

• Arithmetic mean

• Geometric mean

• Harmonic mean

• Weighted mean

Which one of the following is most appropriate for showing frequency distribution ?

• Bar graph

• Histogram

• Pie diagram

• Line graph

If a circel with 1 cm radius represents one lac population , what will be the radius of the circle representing 4 lac population /

• 1 cm

• 2 cm

• 4 cm

• 16 cm