Men,Sarimsaqov Zaynobiddin Asliddinovich (F. I. Sh) Qo`lda yoyli payvandlash fanidan 150 ta


Nuqsonlarning asosiy turlarini toping


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150 ta test qo`lda yoyli payvandlash fanidan

109. Nuqsonlarning asosiy turlarini toping.

A) chokni kesish, shlak aralashgan chok, kuydirilgan chok, chok uzagini chala yopishtirilishi.


B) chokni kesish, sviщ, kichik yoriq.
C) sviщni shlakli burttirish, yoriq, kuydirilgan chok
D) kuydirilgan chok, sviщ, chok uzagini chala yopishtirilishi.

110. Payvandlash chokining nuqsonlarini qanday tuzatish mumkin?

A) chokni tozalash va qaytadan payvandlab yamash.


B) nuqsonni kesib tashlash va qaytadan payvandlab yamash.
C) tok kuchini oshirish va nuqsonni payvandlab yamash.
D) elektrodni almashtirish va nuqsonni payvandlab yamash.

111. Vertikal chokda elektrodning qiyalik burchagini toping.

A) 300


B) 400
C) 900
D) 1200
112.Vertikal chokda yoyning uzunligini toping?

A) 2 – 5 mm.


B) 2 – 3 mm.
C) 2 – 4 mm.
D) 3 – 5 mm.

113. Oshirilgan kuchlanish payvandlash yoyiga qanday ta’sir etadi?

A) yoyning quvvatini oshiradi.


B) payvandlash yoyining kuchini oshiradi.
C) payvandlash yoyini yondirishni osonlashtiradi.
D) payvandlash yoyini yondirishni qiyinlashtiradi.

114.Payvandlash transformatori nimani xosil qiladi?

A) payvandlash tok kuchini


B) kuchlanishni
C) payvandlash yoyining quvvatini
D) kuchlanish, payvandlash yoyining quvvatini

115. Ish joyida payvandlash chokining sifatini qanday aniqlash mumkin?

A) exolokatsiya yordamida


B) rentgen nuri yordamida
C) vizual (kuz bilan qarab qilinadigan) usul bilan
D) magnit – impulsli nazorat yordamida
116. Kuchaytirilgan valiklarni eritib yopishtirishdagi tebratuvchi xarakatlarni kursating.
A) uchburchak, sakkiz, ikki marta sakkiz
B) zigzag, uchburchak, yarimoy
C) uchburchak, spiral, zigzag
D) spiral, sakkiz, zigzag
117.Ish joyidagi nuqsonlarning nazorat turlarini toping.
A) rentgen nuri
B) exolokatsiya
C) magnit impulsli
D) vizual nazorat

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