VARIANT 9. VARIANT 10

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VARIANT 9

Test 1. According on a way of formation the dust is subdivided on:

A. Inorganic

B. Organic

C. Mixed

D. An aerosol of disintegration

E. An aerosol of condensation

Test 2. For what stage of dust disease is the following X-ray picture characteristic: several nodules 1 mm in diameter along bronchi on the background of an interstitial pneumosclerosis, moderate bilateral intensification of a lung pattern

A. 1 stage

B. 2 stage

C. 3 stage

D. 4 stage

E. 5 stage

Test 3. What kind of a dust causes a coal-miners disease (anthracosilicosis) at the person?

A. Silicon dioxide together with wood dust

B. Salts of silicon acid together with coal dust

C. Silicon dioxide together with coal dust

D. Salts of silicon acid together with coal dust

E. Wood dust together with metal dust

Test 4. Air of a working zone contains 5,0 mg/m³ of dust (contains 50% of silicon dioxide). Is development of a dust disease possible in the worker?

A. No

B. Silicosis is possible

C. Metalloconiosis is possible

D. Anthracosis is possible

E. Silicatosis is possible

Test 5. What dust may cause cancerogenic action on human organism?

A. Microbial

B. Woolen

C. Containing soot

D. Containing silicon dioxide

E. Lead

VARIANT 10

Test 1. Name maximum permissible concentration of a nontoxic dust in air of a working zone?

A. 10 mg/m³

B. 1 mg/m³

C. 5 mg/m³

D. 15 mg/m³

E. 20 mg/m³

Test 2. What classes of a dust according to a chemical composition do you know?

A. Inorganic

B. Organic

C. Mixed

D. Transport

E. Agricultural

Test 3. The X-Ray examination of a miner has revealed several nodules 1 mm in diameter along bronchi on the background of interstitial fibrosis of lungs. Name the probable diagnosis.

A. Anthracosis of 1 stage

B. Anthracosis of 2 stage

C. Hemosiderosis of 1 stage

D. Silicatosis of 1 stage

E. Silicosis of 1 stage

Test 4. What size of particles has visible dust?

A. Less than 0,025 microns

B. 0,25 - 10 microns

C. Less than 0,25 microns

D. More than 10 microns

E. More than 20 microns

Test 5. Air of a working zone contains dust consisting of silicon dioxide. What kind of pneumoconiosis is possible in workers?

A. Silicosis

B. Anthracosis

C. Hemosiderosis

D. Byssinosis

E. Silicatosis

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