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GATE 2023 Surveying Quiz 60
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Question 1
Place P has longitude 8810’ E. Find the local mean time if the standard meridian is 72 and the standard time is 9h 36m 48s.
Question 2
Which of the following are primarily satellite-based systems?
i. GPS
ii. GIS
iii. Remote Sensing
iv. Radar
Question 3
A 2500 m long line lying at an elevation of 400 m measures 12cm on a vertical photograph. The focal length of the camera is 20cm. The scale of the photograph for an area having an elevation of 1000 m will be?
Question 4
In remote sensing, the electromagnetic radiation (EMR) are measured to infer the surface parameters, these EMRs are …………… from the surface of earth to be studied.
Question 5
Determine the number of photographs required to cover an area 25 km × 20 km if the scale is 1 in 10,000 & the format is 230 × 230 mm. Take longitudinal lap as 60 % and the side lap as 30%.
Question 6Multiple Correct Options
A tower is photographed from an elevation of 1000 m above datum. The radial distance measured from principal points to the bottom and top of tower are 80 m and 100 m respectively. The bottom of the tower is at 300 m above ground level
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ESE & GATE CESurveyingNov 1ESE & GATE CE