Mining Engineering
2020 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE MN 2020 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 58–60 of 65. Imported answers require review unless explicitly marked reviewed.
Question 48
Open questionMNNAT2 marksNeeds review
The following figure represents the observations from the level survey of an underground gallery.
If the reduced level of station A is 100.0 m, the reduced level of station D in m is ________ (round off to 1 decimal place).
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A tacheometer was set up at station P and the following readings were taken at two stations A and B with the staff held vertical and the line of sight horizontal.
Line | Bearing | Staff intercept |
|---|---|---|
PA | 210° | 1.2 m |
PB | 135° | 1.4 m |
The additive and multiplying constants of the tacheometer are 0 and 100, respectively. The length of AB in m is ________ (round off to 1 decimal place).
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Open questionMNNAT2 marksNeeds review
The geometry of a simple planar curve (ADB) is shown below. The value of the mid-ordinate of the curve in m is ________ (round off to 1 decimal place).
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