Review Quiz

Question 1

Is coal a mineral?

Answer 1

No, because it does not fit the definition of a mineral (a mineral is
organic while coal made up of organic matter)

Question 2

Which of the following is the highest coal producer in year 2021?

Answer 2

China

Question 3

Which of the following industries highly use coal as coke?

Answer 3

Smelting Industry

Question 4

Which of the following is the best site for the formation of coal?

Answer 4

Wet areas such as marsh and swamps

Question 5

Which of the following is also known as immature coal?

Answer 5

Lignite

Question 6

In coal formation, coal generally starts off as _______.

Answer 6

Peat

Question 7

________ is a geological term that states that in a
small area, the deeper the coal the higher its rank
(grade).

Answer 7

Hilt’s Law

Question 8

_________ may cause lateral changes of coal rank,
irrespective of depth.

Answer 8

Metamorphism

Question 9

It is the degree of alteration that occurs as a coal matures from peat
to anthracite.

Answer 9

Rank of Coal

Question 10

____________, is used in power stations to generate electricity.

Answer 10

Steam coal

Question 10

This is the first stage of prospect evaluation of coal.

Answer 10

Pre-exploration Stage

Question 11

In which stage of prospect evaluation do we locate potentially
exploitable coal fields?

Answer 11

Pre-exploration stage

Question 12

Globally, 40% of coal production involves what mining method?

Answer 12

Surface Mining Method

Question 13

______________ is conducted in hilly or mountainous terrain with
cuts placed on the contours of the topography.

Answer 13

Contour Mining

Question 14

__________- is the term commonly used in mining to indicate this
process of excavation and dumping into a final location.

Answer 14

Casting

Question 15

__________is the process of mining any near-surface deposits by
means of a surface pit excavated using two or more horizontal
benches.

Answer 15

Open Cut Mining

Question 16

It is the process of boring tunnels into a highwall laterally from the
bench to extract coal without removing the overburden.

Answer 16

Auger Mining

Question 17

Which of the following underground mining method/s is/are usually
adapted in coal mining?

Answer 17

Room and Pillar Mining and Longwall Mining

Question 18

Which underground mining method has the highest mining recovery
rate?

Answer 18

Longwall

Question 19

Which of the following underground mining method follows the basic
production cycle of drill-blast-load-haul

Answer 19

Conventional Room and Pillar