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 13–15 of 65. Imported answers require review unless explicitly marked reviewed.
Question 3
Open questionMNMCQ1 markNeeds review
Match the following safety arrangements for a surface-to-underground shaft hoist with their corresponding safety functions.
Hoisting safety arrangement | Safety function |
|---|---|
P — Detaching hook | 1 — Over-winding safety on surface |
Q — Narrowing rigid guides | 2 — Resting cage |
R — Keps | 3 — Over-winding safety at underground |
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Open questionMNMCQ1 markNeeds review
The fore bearings and back bearings of the lines of an open compass traverse are given below.
Line | Fore bearing | Back bearing |
|---|---|---|
PQ | 132°30′ | 313°30′ |
QR | 123°30′ | 303°30′ |
RS | 182°30′ | 2°15′ |
ST | 288°45′ | 108°0′ |
The stations that are free from local attraction are
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The plane stress condition is given by
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