Mining Quiz 2016 Statements

Question 1

Carbon monoxide can be detected by means of carbon monoxide detectors, __________, or by chemical analysis.

Answer 1

Multi-gas detectors

Question 2

Nitrogen dioxide is produced by __________ and by the detonation of explosives

Answer 2

burning

Question 3

__________ percent methane together with coal dust in air may be explosive.

Answer 3

One and one-half to two

Question 4

The range of concentrations within which a gas will explode are known as its __________.

Answer 4

explosive range

Question 5

Any flammable gas can _________ under certain conditions

Answer 5

explode

Question 6

In mines where head coal (roof coal) is __________, a fire will spread more rapidly.

Answer 6

left

Question 7

Fires can be attacked by the use of a foam generator from a distance of __________ feet.

Answer 7

500-1500

Question 8

One method of direct firefighting is flooding the __________ area with water.

Answer 8

sealed fire

Question 9

__________ are responsible for assessing damage to the ventilation system.

Answer 9

Rescue teams

Question 10

Information the team relays to the fresh-air base as it proceeds is known as the __________.

Answer 10

progress report