Q1: In shape rolling, the final product is deformed into a countered cross-section like: (a) I-beam, L-beam, rails, H-beam and U-channel, (b) tubes, (c) screws, (d) gears (e) airfoil sections (f) bars and rods Q2: In two-high mill rolling (reversing type), the disadvantage is: (a) Compression force, (b) large roll diameter, (c) significant angular momentum, (d) large draft Q3: In four-high mill rolling, the roll force, torque and power are reduced due to: (a) Reduced contact length by lower radius of rolls, (b) large contact length, (c) low friction, (d) low draft Q4: In tandem rolling mill, the problem of synchronizing the roll speeds at each stand is a significant one because: (a) exit velocity of w.p. is increased after each rolling step, (b) increase the roll force, (c) exit velocity of w.p. is decreased, (d) increased draft
Q1: In shape rolling, the final product is deformed into a countered cross-section like: (a) I-beam, L-beam, rails, H-beam and U-channel, (b) tubes, (c) screws, (d) gears (e) airfoil sections (f) bars and rods Q2: In two-high mill rolling (reversing type), the disadvantage is: (a) Compression force, (b) large roll diameter, (c) significant angular momentum, (d) large draft Q3: In four-high mill rolling, the roll force, torque and power are reduced due to: (a) Reduced contact length by lower radius of rolls, (b) large contact length, (c) low friction, (d) low draft Q4: In tandem rolling mill, the problem of synchronizing the roll speeds at each stand is a significant one because: (a) exit velocity of w.p. is increased after each rolling step, (b) increase the roll force, (c) exit velocity of w.p. is decreased, (d) increased draft
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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