1 What is nitrogen peroxide (NO2)? a. It is non-poisonous, incombustible gas. a. It is non-poisonous, incombustible gas. b. It is an extremely poisonous.

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1 What is nitrogen peroxide (NO2)? a. It is non-poisonous, incombustible gas. a. It is non-poisonous, incombustible gas. b. It is an extremely poisonous gas frequently formed by the burning of high explosives. b. It is an extremely poisonous gas frequently formed by the burning of high explosives. c. It is a combustible, non-poisonous gas, yellow in color. c. It is a combustible, non-poisonous gas, yellow in color. d. It is a poisonous gas with a foul odor. d. It is a poisonous gas with a foul odor.

2 What is the specific gravity of nitrogen peroxide? a. One and five hundred eighty-nine one-thousandths (1.589). a. One and five hundred eighty-nine one-thousandths (1.589). b. Nine hundred sixty-seven one thousandths (0.967). b. Nine hundred sixty-seven one thousandths (0.967). c. One and one hundred ninety-one one- thousandths (1.191). c. One and one hundred ninety-one one- thousandths (1.191). d. One and five hundred twenty-nine one thousandths (1.529). d. One and five hundred twenty-nine one thousandths (1.529).

3 What is the weight of a cubic foot of nitrogen peroxide at 60 degrees Fahrenheit and inches of mercury pressure? a. Seventeen hundred thirty-three ten- thousandths (0.1733) of one pound. a. Seventeen hundred thirty-three ten- thousandths (0.1733) of one pound. b. Nine hundred eleven ten-thousandths (0.0911) of one pound. b. Nine hundred eleven ten-thousandths (0.0911) of one pound. c. Twelve hundred seventeen ten- thousandths (0.1217) of one pound. c. Twelve hundred seventeen ten- thousandths (0.1217) of one pound. d. Seven hundred sixty-five ten- thousandths (0.0765) of one pound. d. Seven hundred sixty-five ten- thousandths (0.0765) of one pound.

4 Is nitrogen peroxide combustible? a. Yes, always. a. Yes, always. b. No, it is incombustible. b. No, it is incombustible. c. Yes, but only in areas with a high oxygen content. c. Yes, but only in areas with a high oxygen content. d. Yes, but only in areas with a low oxygen content. d. Yes, but only in areas with a low oxygen content.

5 What percentage of nitrogen peroxide will be fatal? a. A concentration of one percent(1%). a. A concentration of one percent(1%). b. An extremely low concentration of one thousandths of one percent (0.001%). b. An extremely low concentration of one thousandths of one percent (0.001%). c. A concentration on one tenth of one percent (0.1%). c. A concentration on one tenth of one percent (0.1%). d. Extremely low concentrations, probably about one hundredth of one percent (0.01%). d. Extremely low concentrations, probably about one hundredth of one percent (0.01%).

6 How may traces of nitrogen peroxide be detected? a. A paper soaked in a solution of starch and potassium iodine will turn blue when exposed to nitrogen peroxide. a. A paper soaked in a solution of starch and potassium iodine will turn blue when exposed to nitrogen peroxide. b. A paper soaked in a solution of acetate of lead. b. A paper soaked in a solution of acetate of lead. c. By a flame safety lamp. c. By a flame safety lamp. d. By chemical analysis. d. By chemical analysis.

7 What are the first effects of nitrogen peroxide on a person? a. It blurs the vision. a. It blurs the vision. b. It gives off a foul odor. b. It gives off a foul odor. c. It creates a feeling of dizziness. c. It creates a feeling of dizziness. d. It is extremely irritating to the nostrils and the eyes. d. It is extremely irritating to the nostrils and the eyes.

8 What is the particular danger of nitrogen peroxide? a. It is extremely explosive. a. It is extremely explosive. b. Relatively small quantities may cause death even after apparent recovery. b. Relatively small quantities may cause death even after apparent recovery. c. Poisonous but only in large quantities. c. Poisonous but only in large quantities. d. There is no danger. d. There is no danger.