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1. To continue a survey line AB past an obstacle, a line BC 100 m long was set out perpendicular to AB and from C angles BCD and BCE were set out at 60° and 45° respectively. Determine lengths which must be chained off along CE in order that ED may be in AB produced?


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2. An offset is measured with an accuracy of 1 in 40. If scale of plotting is 1 cm = 20 m, find limiting length of offset so that displacement of point on paper from both sources of error may not exceed 0.25 mm?


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3. Prismatic compass is an instrument for measuring angles.


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4. Which of following variations are due to magnetic storms?


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5. Which of following instruments can be used without a tripod?


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6. What is direction of line relative to a given meridian?


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7. In surveyor’s compass needle is of edge bar type.


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8. What is systematic departure of declination from its mean value during a period of 24 hours?


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9. In prismatic compass, graduations are in W.C.B system.


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10. The horizontal angle between true meridian and magnetic meridian shown by needle at time of observation is called __


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Chain Surveying & The Compass

To continue a survey line AB past an obstacle, a line BC 100 m long was set out perpendicular to AB and from C angles BCD and BCE were set out at 60° and 45° respectively. Determine lengths which must be chained off along CE in order that ED may be in AB produced?

;

An offset is measured with an accuracy of 1 in 40. If scale of plotting is 1 cm = 20 m, find limiting length of offset so that displacement of point on paper from both sources of error may not exceed 0.25 mm?

;

Prismatic compass is an instrument for measuring angles.

;

Which of following variations are due to magnetic storms?

;

Which of following instruments can be used without a tripod?

;

What is direction of line relative to a given meridian?

;

In surveyor’s compass needle is of edge bar type.

;

What is systematic departure of declination from its mean value during a period of 24 hours?

;

In prismatic compass, graduations are in W.C.B system.

;

The horizontal angle between true meridian and magnetic meridian shown by needle at time of observation is called __

;