11

What is carbon monoxide What is carbon monoxide (CO)? (CO)?

a. It is a colorless, odorless, tasteless, a. It is a colorless, odorless, tasteless, inert gas.inert gas.

b. It is a colorless, odorless, tasteless, b. It is a colorless, odorless, tasteless, combustible and poisonous gas.combustible and poisonous gas.

c. It is a colorless, combustible gas c. It is a colorless, combustible gas with a disagreeable odor.with a disagreeable odor.

d. It is a colorless, odorless, tasteless d. It is a colorless, odorless, tasteless gas supporting combustion.gas supporting combustion.

22

How can carbon monoxide be How can carbon monoxide be detected? detected?

a. With a flame lamp and CO2 a. With a flame lamp and CO2 tubes.tubes.

b. With a flame lamp and SO2 b. With a flame lamp and SO2 detectors.detectors.

c. By carbon monoxide detectors c. By carbon monoxide detectors and by chemical analysis.and by chemical analysis.

d. With a CO2 tester or small bird.d. With a CO2 tester or small bird.

33

What is the source of carbon What is the source of carbon monoxide? monoxide?

a. It is the result of inadequate a. It is the result of inadequate ventilation.ventilation.

b. It is produced as a result of the b. It is produced as a result of the use of explosives.use of explosives.

c. It is the product of incomplete c. It is the product of incomplete combustion (combustion with combustion (combustion with insufficient oxygen).insufficient oxygen).

d. It is produced when batteries are d. It is produced when batteries are charged.charged.

44

When is carbon monoxide most When is carbon monoxide most likely to be found in mines? likely to be found in mines?

a. When the barometric pressure a. When the barometric pressure falls.falls.

b. When there is a mine fire or after b. When there is a mine fire or after an explosion.an explosion.

c. When the barometric pressure c. When the barometric pressure rises.rises.

d. When ventilation is less than d. When ventilation is less than required by law.required by law.

55

What is afterdamp? What is afterdamp?

a. The atmosphere deficient in oxygen.a. The atmosphere deficient in oxygen. b. The atmosphere containing carbon b. The atmosphere containing carbon

monoxide and oxygen.monoxide and oxygen. c. The atmosphere following an c. The atmosphere following an

explosion containing carbon dioxide, explosion containing carbon dioxide, carbon monoxide, decreased oxygen, carbon monoxide, decreased oxygen, nitrogen, hydrogen and smoke.nitrogen, hydrogen and smoke.

d. The atmosphere containing sulfur d. The atmosphere containing sulfur dioxide.dioxide.

66

What kind of engines produce What kind of engines produce carbon monoxide? carbon monoxide?

a. Steam engines.a. Steam engines. b. Electric engines.b. Electric engines. c. Diesel engines.c. Diesel engines. d. Internal combustion engines.d. Internal combustion engines.

77

What is the principal poisonous What is the principal poisonous gas produced by explosives? gas produced by explosives?

a. Ammonia nitrate.a. Ammonia nitrate. b. Carbon monoxide.b. Carbon monoxide. c. Nitrogen peroxide.c. Nitrogen peroxide. d. Carbon dioxide.d. Carbon dioxide.

88

What effect does carbon What effect does carbon monoxide have on life?monoxide have on life?

a. It is extremely poisonous.a. It is extremely poisonous. b. It supports life and combustion.b. It supports life and combustion. c. It has no effect.c. It has no effect. d. It increased lung ventilation.d. It increased lung ventilation.

99

How does carbon monoxide How does carbon monoxide cause injury to life? cause injury to life?

a. By preventing breathing.a. By preventing breathing. b. By corroding the lung.b. By corroding the lung. c. By combining with the c. By combining with the

hemoglobin of the blood and hemoglobin of the blood and excluding oxygen.excluding oxygen.

d. By clotting the blood.d. By clotting the blood.

1010

What percentage of carbon monoxide What percentage of carbon monoxide will produce symptoms in several will produce symptoms in several

hours?hours? a. Four hundredths of one percent a. Four hundredths of one percent

(0.04%).(0.04%). b. Eight hundredths to twelve b. Eight hundredths to twelve

hundredths of one percent (0.08% hundredths of one percent (0.08% to 0.12%).to 0.12%).

c. Two tenths to three tenths of one c. Two tenths to three tenths of one percent (.2% to 0.3%).percent (.2% to 0.3%).

d. Two hundredths of one percent d. Two hundredths of one percent (.02%).(.02%).

1111

What percentage of carbon monoxide What percentage of carbon monoxide will produce discomfort in two or three will produce discomfort in two or three

hours?hours? a. Two hundredths of one percent a. Two hundredths of one percent

(0.02%).(0.02%). b. Four hundredths of one percent b. Four hundredths of one percent

(0.04%)(0.04%) c. Eight hundredths to twelve c. Eight hundredths to twelve

hundredths of one percent (0.08% hundredths of one percent (0.08% to 0.12%).to 0.12%).

d. Two tenths to three tenths of one d. Two tenths to three tenths of one percent (0.2% to 0.3%).percent (0.2% to 0.3%).

1212

What percentage of carbon monoxide What percentage of carbon monoxide will produce a tendency to stagger in will produce a tendency to stagger in

one and one-half (1-1/2) hours?one and one-half (1-1/2) hours?

a. Two hundredths of one percent (0.02%).a. Two hundredths of one percent (0.02%). b. Two tenths to three tenths of one b. Two tenths to three tenths of one

percent (0.2% to 0.3%).percent (0.2% to 0.3%). c. Eight tenths to twenty hundredths of c. Eight tenths to twenty hundredths of

one percent (0.8% to 0.020%).one percent (0.8% to 0.020%). d. Eight to twelve hundredths of one d. Eight to twelve hundredths of one

percent (.08% - 0.12%) or 800 to 1,200 percent (.08% - 0.12%) or 800 to 1,200 ppm.ppm.

1313

What percentage of carbon monoxide What percentage of carbon monoxide will produce symptoms of will produce symptoms of

unconsciousness in thirty (30) unconsciousness in thirty (30) minutes?minutes?

a. Twenty to thirty hundredths of a. Twenty to thirty hundredths of percent (0.20% - 0.30%).percent (0.20% - 0.30%).

b. One percent (1.00%).b. One percent (1.00%). c. Thirty hundredths to fifty c. Thirty hundredths to fifty

hundredths percent (0.30% to hundredths percent (0.30% to 0.50%).0.50%).

d. Five hundredths of one percent d. Five hundredths of one percent (0.05%).(0.05%).

1414

How much greater affinity does How much greater affinity does hemoglobin have for carbon monoxide hemoglobin have for carbon monoxide

than for oxygen?than for oxygen? a. About five hundred (500) times.a. About five hundred (500) times. b. About three hundred (300) times.b. About three hundred (300) times. c. About two hundred (200) times.c. About two hundred (200) times. d. About one thousand (1,000) d. About one thousand (1,000)

times.times.

1515

Why are small quantities of Why are small quantities of carbon monoxide injurious?carbon monoxide injurious?

a. Because it is not easily thrown off a. Because it is not easily thrown off and accumulates in the blood.and accumulates in the blood.

b. It immediately coagulates the b. It immediately coagulates the blood.blood.

c. Because it accumulates in the c. Because it accumulates in the lungs.lungs.

d. It partially paralyzes the action of d. It partially paralyzes the action of breathing.breathing.

1616

What is the specific gravity of What is the specific gravity of carbon monoxide? carbon monoxide?

a. Nine hundred sixty-seven a. Nine hundred sixty-seven thousandths (0.967).thousandths (0.967).

b. One and five hundred twenty-b. One and five hundred twenty-nine thousandths (1.529).nine thousandths (1.529).

c. Five hundred fifty-five c. Five hundred fifty-five thousandths (0.555).thousandths (0.555).

d. One (1.00).d. One (1.00).

1717

What is the weight of one (1) cubit foot What is the weight of one (1) cubit foot of carbon monoxide at 60 degrees of carbon monoxide at 60 degrees

Fahrenheit and 30.00 inches of Fahrenheit and 30.00 inches of mercury pressure?mercury pressure?

a. Seven hundred sixty-five ten a. Seven hundred sixty-five ten thousandths of one pound (0.0765).thousandths of one pound (0.0765).

b. Seven hundred forty ten thousandths b. Seven hundred forty ten thousandths of one pound (0.0740).of one pound (0.0740).

c. Four hundred twenty-four ten c. Four hundred twenty-four ten thousandths of one pound (0.0424).thousandths of one pound (0.0424).

d. Eleven hundred seventy ten d. Eleven hundred seventy ten thousandths of one pound (0.1170).thousandths of one pound (0.1170).