List of top Planning Techniques and Management Questions on Tools and techniques of Surveys asked in GATE AR

On a topographic map, increasing spacing between successive contour lines uphill represents a slope.

A socio-economic survey of a city is planned with a sample size of 1250 persons, having the same proportion of age and sex distribution of the city population, as given in the table below. The required number of representative female respondents of the age group 19 to 40 years, is (rounded off to nearest integer).

Age group (in years)	City Population Distribution (in %)
	Male	Female
0 to 6	2	1.5
7 to 18	8.5	6
19 to 25	14.5	13.5
26 to 40	14.5	11
41 to 50	12	8
51 to 60	2.5	2.5
60 +	1.5	2

In 2021, a city survey report revealed a sex ratio of 930 with an estimated increase of 2.16% over the next 20 years. In 2041, the total population of the city is projected to be 15,00,000. The estimated female population in the year 2041 will be_______ (in integer)

In a traffic survey, Enoscope is used to measure

The figure below shows a contour diagram and two points (A \& B) on the continuously ascending surface. The horizontal projection of AB is 200 m long, and the gradient of AB is 1 in 25. The constant contour interval (in m) is \underline{\hspace{1cm}} [in integer]. \begin{center} \includegraphics[width=0.5\textwidth]{09.jpeg} \end{center}

Choose the non-probability sampling method where the sample is taken from a group of people easy to contact or reach.

Select the most appropriate scale to measure Attitude, Opinion and Perception.