Answer the following questions: 2:10HW-3.pdfSolutions of HW-31 of 3 owing questions:75DoneQ1: 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 rodsQ2: In two-high mill rolling (reversing type), the disadvantage is:(a) Compression force, (b) large roll diameter, (c) significant angular momentum,(d) large draftQ3: 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 draftQ4: In tandem rolling mill, the problem of synchronizing the roll speeds at each standis a significant one because:(a) exit velocity of w.p. is increased after each rolling step, (b) increase the rollforce, (c) exit velocity of w.p. is decreased, (d) increased draftQ5: In planetary rolls, a pair of planishing rolls are supplied on the exit to:(a) reduce force, (b) increase draft, (c) support w.p., (d) improve the surface finishQ7: In ring rolling, the final products have more strength through:(a) hot rolling, (b) cold rolling, (c) warm rolling, (d) none of theseQ6: In thread rolling process, the final products have a better fatigue resistance due to:(a) tensile stresses, (b) compressive stresses introduced by rolling, (c) shear stresses,(d) bending stressesQ8: The threads produced by gear rolling process have improved strength than cutthreads due to:(a) strain hardening (cold working), (b) helical threads, (c) straight threads,(d) hot rollingQ9: In roll piercing process, the two rolls are used to apply:(a) tensile stresses, (b) bending stresses, (c) compressive stresses on the w.p.,(d) shear stressesQ10: In four-high mill rolling, unless the large backing rolls are used to supportsmaller rolls, the smaller rolls will going to:(a) elastic deflection or bending (b) warping (c) cracking (d) none of theseQ11: In cluster rolling mill, the backed up rolls giverolls to heavily press the w.p.(a) more stability (b) more pressure (c) more slipping (d) none of theseQ12: What are the benefits of supplying the tandem rolling mills directly byto the two basic

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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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