GATE (TF) Textile 2020 Question Paper Solution | GATE/2020/TF/48

Question 48 (Textile Engineering & Fibre Science)

In a drum-driven winder, the grooved drum having a width of 20 cm is rotating at 1000 rpm. If the drum makes 5 revolutions per double traverse, the traverse speed (m/min) is __80__.

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Given in the question-

Grooved drum width(Traverse length,L)=20 cm

L=0.20 mtr

Drum revolutions(Np)=1000 rpm

Traverse ratio(T.R.)=5 rev/double traverse

Traverse speed(Vt)=?


T.R.=Np/Nt ,
Where N p is package revolutions speed and N t is traverse revolutions

N t=Np / T.R.

N t=1000 / 5

N t=200 rev/min

Now by formula

Vt=2 x L x Nt

Vt=2 x 0.20 x 200

Vt=80 m/min (Answer)

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