WorksheetsQuiz - Rolling
Total questions: 12
Worksheet time: 5mins
1. Define Metal Forming.
(a)
2. Which of the following processes is NOT a bulk deformation process?
Rolling
Forging
Extrusion
Deep Drawing
3. Metal forming improves strength and ductility through grain refinement.
TRUE
FALSE
4. Differentiate between bulk deformation and sheet metal forming.
5. What are two main advantages of metal forming compared to machining?
6. In rolling, the metal thickness is reduced primarily by which type of stress?
Tensile stress
Compressive stress
Shear stress
Bending stress
7. Which statement about rolling is TRUE?
Rolling always increases sheet thickness.
Rolling reduces cross-section by tensile force.
Rolling reduces thickness using compressive force.
Rolling is performed only cold.
8. The function of friction in rolling is to:
Increase surface finish
Pull the metal strip into the roll gap
Reduce energy consumption
Cause slip between rolls and metal
9. Which statement about flat rolling is correct?
It increases thickness of sheets
It reduces thickness uniformly along width
It is used only for cold rolling
It uses contoured rolls for shaping
10. Ring rolling is characterized by:
Reduction of outer diameter
Expansion of ring diameter and reduction of wall thickness
Formation of threads on shafts
Forming flat sheets from billets
11. Camber and crown are used to correct roll bending and ensure flatness.
TRUE
FALSE
12. Which of the following is a common rolling defect?
Porosity
Shrinkage cavities
Zipper cracks
Blowholes
