1-variant Er sharini o’rab turgan atmosfera havosining umumiy og’irligi qancha?


Issiqlik yutilishi inson organizmining qaysi qismlarida yaxshi kechadi?


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HAYOT FAOLIYATI XAVFSIZLIGI

18. Issiqlik yutilishi inson organizmining qaysi qismlarida yaxshi kechadi?

A). qon, jigar

B). muskullar

C). o’t, jigar

D). A va V javoblar to’g’ri.

19. Katatermometr asbobi nimani o’lchaydi?

A). havoning changlanganligini

B). havoning harakat tezligini

C). yoritilganlikni

D). yorug’lik bosimini

20. Havo-ko’pikli o’t o’chirish asbobini toping?

A). OXP-10

B). OU-2

C). ISHV-1

D). OVP-5

21. Mayda changlar yoki mikroskopik changlar deb qancha kattalikka ega bo’lgan changlarga aytiladi?

A). 18-10 mkm gacha

B). 10-0,25 mkm gacha

C). 0,25-0,12 mkm gacha

D). 0.12-0,08 mkm gacha

22. Yirik changlar deb qanday changlarga aytiladi?

A). 8 mkm dan katta

B). 12 mkm dan katta

C). 10 mkm dan katta

D). 20 mkm dan katta

23. Odam tanasining elektr tokini sezish bo’sag’asini ayting?

A). 9-23 mA gacha

B). 6-16 mA gacha

C). 0,5-1,5 mA gacha

D). 5-10 mA gacha


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