GATE MN kind:question PYQs & Answers — Page 41

Questions 401–410 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 41 of 65

The eigenvalues of the matrix

are

Your answerChoose one option.

6, 4

4, 5

-2, 5

-4, 5

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For the electric delay detonator shown in the figure, the components P, Q and R, respectively, are

Diagram for Mining Engineering question 2

Your answerChoose one option.

fuse head, delay element, priming charge

fuse head, priming charge, delay element

priming charge, delay element, fuse head

delay element, fuse head, priming charge

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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

Your answerChoose one option.

P - 1, Q - 2, R - 3

P - 3, Q - 1, R - 2

P - 2, Q - 3, R - 1

P - 1, Q - 3, R - 2

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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

Your answerChoose one option.

P and Q

Q and R

R and S

S and T

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The plane stress condition is given by

Your answerChoose one option.

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Match the following metals with their corresponding minerals.

Metal	Mineral
P — Copper	1 — Galena
Q — Tungsten	2 — Sphalerite
R — Lead	3 — Chalcopyrite
S — Zinc	4 — Wolframite

Your answerChoose one option.

P - 4, Q - 2, R - 1, S - 3

P - 4, Q - 1, R - 3, S - 2

P - 3, Q - 4, R - 1, S - 2

P - 2, Q - 3, R - 4, S - 1

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Match the wire rope types with their corresponding cross-sectional diagrams.

Rope type	Diagrams
P — Round strand	1 — diagram 1
Q — Half-locked coil	2 — diagram 2
R — Flattened strand	3 — diagram 3
S — Full locked coil	4 — diagram 4

Your answerChoose one option.

P – 3, Q – 2, R – 4, S – 1

P – 3, Q – 1, R – 2, S – 4

P – 1, Q – 3, R – 4, S – 2

P – 4, Q – 2, R – 3, S – 1

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The ‘ratchet and pawl’ mechanism in a jack hammer drill

Your answerChoose one option.

forces down the piston

provides a twisting force to the drill steel

engages rifle bar with rifle nut

prevents reverse rotation of rifle bar

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Post-pillar method of stoping is a variant of

Your answerChoose one option.

cut and fill stoping

sublevel stoping

vertical crater retreat method

sublevel caving

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‘Cross-measure borehole method’ is used for

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rock slope monitoring

methane drainage

connecting two drifts

subsidence monitoring

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GATE MN kind:question PYQs

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