Test savollari variant №1. Inson xayoti uchun qaysi tok kuchi havfli?

9. Sv-04X19N9 Markali payvandlash simida necha foiz xrom bor?

1) 19% 3) 10%

2) 9% 4) 04%
10. Inson xayoti uchun qaysi tok kuchi havfli?

1) 10 A dan past, 3) 0,1 A va undan yuqori,

2) 0,90 A gacha 4) 110A dan ortiq.

11. Atsetilen generatorining vazifasi nima?

1) Yonuvchi gaz bosimini sozlash.

2) Karbid kaltsiyni saqlash.

3) Atsetilen gazini transportirovka (tashish) qilish.

4) Atsetilen gazini ishlab chiqish .
12. Saqlovchi zatvor(saqlagich)ning vazifasi nima?

1) Teskari zarb bo’lganda portlashdan saqlash.

2) Atsetilen gazini chiqib ketishidan saqlash.

3) Suv satxini aniklash.

4) Ortiqcha atsetilen gazini chiqarib yuborish.
13. O’ng usulda payvandlashda qo’shimcha chiviq diametrini tanlash formulasini ko’rsating?

1) _{ }mm/min. 3) V C₂N₂ = (100_{ }120) _{ }l/soat

2) d = _{ } 4) Mk_m^.S

14. CHap usulda payvandlashda qo’shimcha chiviq diametrini tanlash formulasini ko’rsating?

1) _{ }mm/min. 3) d = _{ }+1

2) Mk_m^.S 4) d = _{ }