Mining Engineering
GATE MN topic:mine-surveying PYQs
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How to practice topic:mine-surveying
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Questions 1–10 of 38. Imported answers require independent review unless marked reviewed.
Question 20
Open questionMNMCQ1 markNeeds review
In remote sensing, the order of the wavelength bands of electromagnetic radiation used for data acquisition is
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A circular curve having radius of curvature 1000 m is set out by connecting two straights with a deflection angle of 60°. The apex distance, in m, is ____________. (rounded off to three decimal places)
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Open questionMNMCQ2 marksNeeds review
The observations from a correlation survey are shown. If the coordinates of points C and D are (East: 375 m, North: 120 m) and (East: 376 m, North: 121 m), respectively, the whole circle bearing of the line EF is
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 62
Open questionMNNAT2 marksNeeds review
Following observations were taken using a Tacheometer with staff held vertical. The additive and multiplying constants of the instrument are 0 and 100, respectively. The reduced level (RL) of the staff station R, in m, is _____________. (rounded off to two decimal places)
Instrument station P; staff stations Q and R. Staff readings at Q: 1.4, 2.7, 3.9; vertical angle: 7°; at R: 2.1, 2.8, 3.6; vertical angle: 5°. RL of Q = 102 m.
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A non-transit theodolite does NOT have
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Match the source of error with the corresponding correction in surveying with steel tape.
Source of error | Type of correction |
|---|---|
(P) Sag | (1) Only Positive (+) |
(Q) Temperature | (2) Only Negative (−) |
(R) Pull greater than standard pull | (3) Either positive or negative (+ or −) |
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 41
Open questionMNMCQ2 marksNeeds review
Based on the theodolite survey for a closed traverse PQRS, the following bearings are observed for the sides of the traverse.
Line | Fore bearing |
|---|---|
PQ | 60°30′ |
QR | 105°30′ |
RS | 220°30′ |
SP | 310°30′ |
The interior angles at P and R respectively are
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Open questionMNNAT2 marksNeeds review
Reciprocal levelling is performed for points P and Q by placing the same levelling instrument at A and B. The observations of staff readings are tabulated as below.
Instrument location | Station P (m) | Station Q (m) |
|---|---|---|
A (near P) | 1.512 | 2.100 |
B (near Q) | 0.680 | 1.302 |
If the Reduced Level (RL) of P is 115.246 m, then the true RL of Q, in m, is ____ (rounded off to 3 decimal places)
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Match the following features with the corresponding symbols.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 41
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In a closed traverse, ABC, the bearings of two lines AB and BC are given.
Line | Length (m) | Bearing |
|---|---|---|
AB | 100 | 90° |
BC | 120 | 150° |
The length, in m and bearing of line CA, in degree, respectively, are
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