VARIANT 15

VARIANT 15

Test 1. Air of a working zone contains 5,0 mg/m³ of dust (contains 10% of lead). 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 2. What kind of a dust causes silicosis in the person?

A. Silicon dioxide

B. Salts of silicon acid

C. Dust of aluminium

D. Coal dust

E. Wood dust

Test 3. What X-ray signs are characteristic for 1 stage of a dust disease?

A. Interstitial & nodular fibrosis of pulmonary tissue, numerous nodules 2 - 4 mm in diameter on the background of partial atelectasis (symptom of «snow storm»), the expressed deformation of lung pattern

B. Massive pneumosclerosis, confluent nodes of connective tissue, shown deformation of bronchi, disorder of bronchial permeability

C. Several nodules of 1 mm in diameter along bronchi on a background of an interstitial pneumosclerosis, moderate bilateral intensification of lung pattern

D. The lung pattern isn’t changed, corresponds to age norm

E. A spherical formation 4 cm in diameter is in the lower part of lung

Test 4. What kinds of nonspecific action of a dust do you know?

A. Diseases of respiratory system

B. Irritation of conjunctiva

C. Irritation of skin

D. Occurrence of dust disease

E. Cancerogenic action

Test 5. What dust is toxic for human organism?

A. Microbial

B. Woolen

C. Acid

D. Asbestine

E. Lead

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