Can you check my answers There are 34 correct answers in this multiple choice qu
ID: 1996753 • Letter: C
Question
Can you check my answers
There are 34 correct answers in this multiple choice quiz (some questions have multiple answers that are correct). To achieve a perfect score on the quiz, all correct answers must be given. Each correct answer is worth 1 point. Each omitted answer or wrong answer reduces the score by 1 point. Percentage score on the quiz is based on the total number of correct answers.
{C}18.1 Which of the following are basic bulk deformation processes in metal forming (three correct answers): (a) bar drawing, (b) blanking, (c) deep drawing, (d) extrusion, (e) forging, and (f) stamping?
Answer. (a), (d), and (e).
{C}18.2 Rolling is a bulk deformation process in which the thickness of the work is reduced by compressive forces exerted by two opposing rolls: (a) true or (b) false?
Answer. (a).
{C}18.3 The starting workpiece in hot rolling of steel plate and sheet stock is which one of the following: (a) bar stock, (b) billet, (c) bloom, (d) slab, or (e) wire stock?
Answer. (d).
{C}18.4 Furnaces used to heat cast steel ingots to achieve a uniform temperature throughout prior to rolling are called which of the following (one best answer): (a) annealing furnaces, (b) heat treating ovens, (c) soaking pits, or (d) tempering furnaces?
Answer. (c).
{C}18.5 The maximum possible draft in a rolling operation depends on which of the following parameters (two correct answers): (a) coefficient of friction between roll and work, (b) roll diameter, (c) roll velocity, (d) stock thickness, (e) strain, and (f) strength coefficient of the work metal?
Answer. (a) and (b).
{C}18.6 Which of the following stress or strength parameters is used in the computation of rolling force (one best answer): (a) average flow stress, (b) compression strength, (c) final flow stress, (d) tensile strength, or (e) yield strength?
Answer. (a).
{C}18.7 Which of the following rolling mill types are associated with relatively small diameter rolls in contact with the work (two correct answers): (a) cluster mill, (b) continuous rolling mill, (c) fourhigh mill, (d) reversing mill, and (e) threehigh configuration?
Answer. (a) and (c).
{C}18.8 Production of pipes and tubes is associated with which of the following bulk deformation processes (three correct answers): (a) extrusion, (b) hobbing, (c) ring rolling, (d) roll forging, (e) roll piercing, (f) tube sinking, and (g) upsetting?
Answer. (a), (e), and (f).
{C}18.9 Which of the following stress or strength parameters is used in the computation of the maximum force in a forging operation (one best answer): (a) average flow stress, (b) compression strength, (c) final flow stress, (d) tensile strength, or (e) yield strength?
Answer. (c).
{C}18.10 {C}Which of the following operations are closely related to open-die forging (three best answers): (a) cogging, (b) flashless forging, (c) fullering, (d) impression-die forging, (e) Mannesmann process, (f) precision forging, and (g) upsetting?
Answer. (a), (c), and (g).
{C}18.11 {C}Flash in impression die forging serves no useful purpose and is undesirable because it must be trimmed from the part after forming: (a) true or (b) false?
Answer. (b). Flash causes buildup of pressure inside the die, which forces the work metal to fill the die cavity.
{C}18.12 {C}Which of the following are classified as forging operations (four correct answers): (a) coining, (b) fullering, (c) impact extrusion, (d) roll piercing, (e) swaging, (f) thread rolling, (g) trimming, and (h) upsetting?
Answer. (a), (b), (e), and (h). Trimming, answer (g), although associated with forging, is a cutting operation.
{C}18.13 {C}Which of the following are alternative names for indirect extrusion (two correct answers): (a) backward extrusion, (b) direct extrusion, (c) forward extrusion, (d) impact extrusion, and (e) reverse extrusion?
Answer. (a) and (e).
{C}18.14 {C}Production of tubing is possible in indirect extrusion but not in direct extrusion: (a) true or (b) false?
Answer. (b). Tube and pipe cross sections can be produced by either direct or indirect extrusion.
{C}18.15 {C}In metal extrusion, the extrusion ratio is also known by which of the following terms (one best answer): (a) area reduction, (b) draft, (c) reduction, or (d) reduction ratio?
Answer. (d). Area reduction is the term used for wire and bar drawing. Draft is a term used in rolling and bar drawing. Reduction is a term used in rolling.
{C}18.16 {C}Which of the following stress or strength parameters is used in the computation of the force in an extrusion operation (one best answer): (a) average flow stress, (b) compression strength, (c) final flow stress, (d) tensile strength, or (e) yield strength?
Answer. (a).
{C}18.17 {C}In which of the following extrusion operations is friction a factor in determining the extrusion force: (a) direct extrusion or (b) indirect extrusion?
Answer. (a).
{C}18.18 {C}Theoretically, the maximum reduction possible in a wire drawing operation, under the assumptions of a perfectly plastic metal, no friction, and no redundant work, is which one of the following: (a) zero, (b) 0.63, (c) 1.0, or (d) 2.72?
Answer. (b).
{C}18.19 {C}Which of the following bulk deformation processes are involved in the production of nails for lumber construction (three best answers): (a) bar and wire drawing, (b) extrusion, (c) flashless forging, (d) impression die forging, (e) rolling, and (f) upsetting?
Answer. (a), (c), and (e). Bar stock is rolled, and then drawn into wire stock. Upset forging (a.k.a. upsetting) is subsequently used to form the nail head.
{C}18.20 {C}Johnson's formula is associated with which one of the four bulk deformation processes: (a) bar and wire drawing, (b) extrusion, (c) forging, and (d) rolling?
Answer. (b).
Explanation / Answer
C}18.1 Which of the following are basic bulk deformation processes in metal forming (three correct answers): (a) bar drawing, (b) blanking, (c) deep drawing, (d) extrusion, (e) forging, and (f) stamping?
Answer. (a), (d), and (e).
{C}18.2 Rolling is a bulk deformation process in which the thickness of the work is reduced by compressive forces exerted by two opposing rolls: (a) true or (b) false?
Answer. (a).
{C}18.3 The starting workpiece in hot rolling of steel plate and sheet stock is which one of the following: (a) bar stock, (b) billet, (c) bloom, (d) slab, or (e) wire stock?
Answer. (d).
{C}18.4 Furnaces used to heat cast steel ingots to achieve a uniform temperature throughout prior to rolling are called which of the following (one best answer): (a) annealing furnaces, (b) heat treating ovens, (c) soaking pits, or (d) tempering furnaces?
Answer. (c).
{C}18.5 The maximum possible draft in a rolling operation depends on which of the following parameters (two correct answers): (a) coefficient of friction between roll and work, (b) roll diameter, (c) roll velocity, (d) stock thickness, (e) strain, and (f) strength coefficient of the work metal?
Answer. (a) and (b).
{C}18.6 Which of the following stress or strength parameters is used in the computation of rolling force (one best answer): (a) average flow stress, (b) compression strength, (c) final flow stress, (d) tensile strength, or (e) yield strength?
Answer. (a).
{C}18.7 Which of the following rolling mill types are associated with relatively small diameter rolls in contact with the work (two correct answers): (a) cluster mill, (b) continuous rolling mill, (c) fourhigh mill, (d) reversing mill, and (e) threehigh configuration?
Answer. (a) and (c).
{C}18.8 Production of pipes and tubes is associated with which of the following bulk deformation processes (three correct answers): (a) extrusion, (b) hobbing, (c) ring rolling, (d) roll forging, (e) roll piercing, (f) tube sinking, and (g) upsetting?
Answer. (a), (e), and (f).
{C}18.9 Which of the following stress or strength parameters is used in the computation of the maximum force in a forging operation (one best answer): (a) average flow stress, (b) compression strength, (c) final flow stress, (d) tensile strength, or (e) yield strength?
Answer. (c).
{C}18.10 {C}Which of the following operations are closely related to open-die forging (three best answers): (a) cogging, (b) flashless forging, (c) fullering, (d) impression-die forging, (e) Mannesmann process, (f) precision forging, and (g) upsetting?
Answer. (a), (c), and (g).
{C}18.11 {C}Flash in impression die forging serves no useful purpose and is undesirable because it must be trimmed from the part after forming: (a) true or (b) false?
Answer. (b). Flash causes buildup of pressure inside the die, which forces the work metal to fill the die cavity.
{C}18.12 {C}Which of the following are classified as forging operations (four correct answers): (a) coining, (b) fullering, (c) impact extrusion, (d) roll piercing, (e) swaging, (f) thread rolling, (g) trimming, and (h) upsetting?
Answer. (a), (b), (e), and (h). Trimming, answer (g), although associated with forging, is a cutting operation.
{C}18.13 {C}Which of the following are alternative names for indirect extrusion (two correct answers): (a) backward extrusion, (b) direct extrusion, (c) forward extrusion, (d) impact extrusion, and (e) reverse extrusion?
Answer. (a) and (e).
{C}18.14 {C}Production of tubing is possible in indirect extrusion but not in direct extrusion: (a) true or (b) false?
Answer. (b). Tube and pipe cross sections can be produced by either direct or indirect extrusion.
{C}18.15 {C}In metal extrusion, the extrusion ratio is also known by which of the following terms (one best answer): (a) area reduction, (b) draft, (c) reduction, or (d) reduction ratio?
Answer. (d). Area reduction is the term used for wire and bar drawing. Draft is a term used in rolling and bar drawing. Reduction is a term used in rolling.
{C}18.16 {C}Which of the following stress or strength parameters is used in the computation of the force in an extrusion operation (one best answer): (a) average flow stress, (b) compression strength, (c) final flow stress, (d) tensile strength, or (e) yield strength?
Answer. (a).
{C}18.17 {C}In which of the following extrusion operations is friction a factor in determining the extrusion force: (a) direct extrusion or (b) indirect extrusion?
Answer. (a).
{C}18.18 {C}Theoretically, the maximum reduction possible in a wire drawing operation, under the assumptions of a perfectly plastic metal, no friction, and no redundant work, is which one of the following: (a) zero, (b) 0.63, (c) 1.0, or (d) 2.72?
Answer. (b).
{C}18.19 {C}Which of the following bulk deformation processes are involved in the production of nails for lumber construction (three best answers): (a) bar and wire drawing, (b) extrusion, (c) flashless forging, (d) impression die forging, (e) rolling, and (f) upsetting?
Answer. (a), (c), and (e). Bar stock is rolled, and then drawn into wire stock. Upset forging (a.k.a. upsetting) is subsequently used to form the nail head.
{C}18.20 {C}Johnson's formula is associated with which one of the four bulk deformation processes: (a) bar and wire drawing, (b) extrusion, (c) forging, and (d) rolling?
Answer. (b).
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