8.Cho’ntak tilchasi necha mm gacha bo’lishi mumkin?
A) 10-15 mm B) 15-20 mm C) 17-20 mm D) 20-25 mm
9.Qirqma cho’ntak mag’zi necha mm gacha bo’lishi mumkin?
A) 13-15 mm; B) 20-22 mm C) 17-19 mm D) 10-15 mm
10.Shakldor ramkali qirqma cho’ntakni ko’rsating?
Kashta tikishda kergi qanday vazifani bajaradi?
A) gazlamani tarang tortib turish va deformatsiyalanishdan saqlash;
B) gazlamani tarang tortib turish va guli chiroyli chiqish;
C) guli chiroyli chiqishi uchun yoki deformatsiyalanishdan saqlash;
D) hamma javoblar to’g’ri;
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