ENGM 445 MID TERM STUDY SET (HOMEWORK 5) |
QUESTIONS AND ANSWERS | 2026 UPDATE | 100%
CORRECT
1. Which of the following is not a product produced on a rolling mill ?
rails
-round bar, threaded rod
-I beam and channels
-thick walled cylinder
-none
Answer> None.
1/
12
, 2. What is the no-slip point, also known as the neutral point, in a rolling opera-
tion?
-It is the point on the work piece where the velocity of the workpiece equals the
input velocity
-It is the point on the work piece where the velocity of the workpiece equals the
output velocity
-It is the the point along the contact arc where work velocity equals roll velocity.
-It is the the point along the contact arc where work velocity equals the average
workpiece velocity.
Answer> It is the the point along the contact arc where work velocity equals roll velocity. During a rolling
operation, there is a gradual change in the velocity of the work as it passes between the opposing rolls. The entering
speed is vo and the exit speed is vf. while the surface speed of the rolls remains constant between these values. The no-
slip point is the one point along the contact arc where work velocity equals roll velocity.
3. Which of the following are/is help(s) in reducing the force in flat rolling?
-a) use hot rolling
-b) reduce draft in each pass
-c) use smaller diameter rolls
-d) a and b
2/
12
QUESTIONS AND ANSWERS | 2026 UPDATE | 100%
CORRECT
1. Which of the following is not a product produced on a rolling mill ?
rails
-round bar, threaded rod
-I beam and channels
-thick walled cylinder
-none
Answer> None.
1/
12
, 2. What is the no-slip point, also known as the neutral point, in a rolling opera-
tion?
-It is the point on the work piece where the velocity of the workpiece equals the
input velocity
-It is the point on the work piece where the velocity of the workpiece equals the
output velocity
-It is the the point along the contact arc where work velocity equals roll velocity.
-It is the the point along the contact arc where work velocity equals the average
workpiece velocity.
Answer> It is the the point along the contact arc where work velocity equals roll velocity. During a rolling
operation, there is a gradual change in the velocity of the work as it passes between the opposing rolls. The entering
speed is vo and the exit speed is vf. while the surface speed of the rolls remains constant between these values. The no-
slip point is the one point along the contact arc where work velocity equals roll velocity.
3. Which of the following are/is help(s) in reducing the force in flat rolling?
-a) use hot rolling
-b) reduce draft in each pass
-c) use smaller diameter rolls
-d) a and b
2/
12
