Mine Supports and Strata Control MCQs Questions & Answers

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Learn and practice multiple-choice questions (MCQs) with answers related to Mine Supports and Strata Control. These resources are available for mining engineering students who wish to clear GATE exams, technical interviews, competitive examinations, and other entrance exams. The Mine Supports and Strata Control chapter is particularly important for students studying mining engineering. Page-4 section-2

Each section contains 100 MCQs on Mine Supports and Strata Control .

In hydraulic prop, during the yeild, the oil pressure varies from

A) 200 - 500 kgf/cm² B) 300 - 600 kgf/cm² C) 100 - 200 kgf/cm² D) 800 - 1000 kgf/cm²

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Hand packing is useful upto maximum gredient.

A) 35° B) 30° C) 25° D) 20°

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The Tensile strength in the rock is given by

A) $$ \in T = \left( {2P} \right)L\left( {\pi dt} \right)$$ B) $$ \in T = \left( {2\pi P} \right)L\left( {d{t^2}} \right)$$ C) $$ \in T = \frac{{2PL}}{{DT}}$$ D) $$ \in T = \frac{{4P}}{{\pi dt}}$$

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Which drills are usually faster and simpler to operate and over all cost per foot are lower

A) Churn drill B) Rotory drill C) Diamon drill D) Tricone crock roller drill

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Timber bar act as

A) Garder B) Beam C) Liver D) Bolt

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

For equal resistance to crushing and bending the prop should have dia . . . . . . . .

A) $${\frac{1}{3}^{{\text{rd}}}}$$ of the length B) $${\frac{1}{6}^{{\text{th}}}}$$ of the length C) $${\frac{1}{9}^{{\text{th}}}}$$ of the length D) $${\frac{1}{{12}}^{{\text{th}}}}$$ of the length

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Expansion shell type bolt is

A) Point loaded bolt B) Distributed load bolt C) Semi distributed loaded bolt D) None

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

To make the roof stitching technique effective it is recommended that

A) Face should not advance more than 2.4 m from last tensioned rope B) Short ropes should be used in between long ropes C) Rope should be tensioned while using good wooden sleepers D) All of these

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

The main purpose of releasing key in hydraulic prop.

A) Withdrawl of support B) Extension of support C) Releasing pump for operation D) All of these

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Best method of mining for controlling the subsidence is . . . . . . . .

A) L/W stowing B) L/W caring C) Harmonic mining D) Bord and Pillar

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

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Mine Supports and Strata Control MCQs Questions & Answers | Mining Engineering