Machine Design refresher 1-2

6問 • 1年前

問題一覧

Which of the following predicts the failure stress reasonably well for brittle materials under static biaxial loading?

Maximum normal stress theory

In gramophones for adjusting the speed of the tum-table, what type of governor is commonly used?

Pickering type

Which of the following is a special type of nickel that is corrosion resistant and has a high ductility and heat resistance.

Low-Carbon Nickel

Which of the following steel with 0.3% - 0.47% mean carbon content and has Jow-hardenablity?

SAE. 1335

The maximum stress to which a material can be subjected without a trace of any permanent set remaining upon a complete withdrawal of the stress.

Elastic limit

In the absence of friction, a simple machine is an ideal machine if the efficiency is A. less tham 1 B. 1 C. Zero D. greater than 1 33. Which of the following is a form of an inclined plane? A. Pulley B. Screw v C. Lever D. Wheel and axle 34. What is the ideal mechanical advantage of a machine that changes only the direction of the input force? A. less than 1 B. zero C. 1 D. greater than 1 35. Ackermann steering gear is made up of A. Sliding and rotary pairs B. Rolling pairs C. Turning pairs D. Rolling and sliding pairs 36. What is the combination of applied normal and shear stresses that produces maximum principal normal stress or minimum principal normal stress, with a third principal stress between or equivalent to the extremes? A. Principal shear stress. C. Maximum shear stress B. Principal normal stress D. Bending and shear stresses 37. What is the other term for the Maximum-Shear-Stress Theory, as a failure prediction theory? A. von Mises criterion C. Coulomb-Mohr theory B. Tresca yield criterion D. Modified Mohr theory 38. For a kinematic chain to be considered as mechanism A. None of the links should be fixed C. Two links should be fixed B. One link should be fixed D. There is no such criterion 39. The motion of a shaft in a circular hole is an example of motion. A. successful constraint C. free B. completely constraint D. incompletely constraint 40. The instantaneous center of rotation of a rigid thin disc rolling without slip on a plane rigid surface is located at A. the center of the disc B. an infinite distance perpendicular to the plane surface C. the point of contact D. the point on the circumference situated vertically opposite to the contact point 41. For a 4-bar linkage in toggle position, the value of mechanical advantage is A. Infinity B. 0.5 C. 1 D. O 42. It is a correction factor used to account for the nonuniform stress distributions A. Fatigue Stress Concentration Factor C. Stress Concentration Factor B. Geometric Stress concentration factor D. Stress correction factor 43. Fatigue failure occurs when a part is subjected to: A. Compressive stress B. Tensile stress C. Torsional stress D. Fluctuating stress 44. A Kinematic chai.needs a minimum: A. 2 links and 2 turning pairs C. 4 links and 4 turning pairs B. 3 links and turning pairs D. 3 links and 2 turning pairs 45. The total permissible variation in the size of dimension: the difference between the limits of size. A. Allowance B. Tolerance C. variance D. Interface 46. The total deformation measured in the direction of the line of stress. A. Axial deformation B. Elongation C. Strain D. Unit stress 47. The maximum stress to which a material can be subjected without a trace of any permanent set remaining upon a complete withdrawal of the stress. A. Ultimate limit B. Proportional limit C. Endurance limit D. Elastic limit 48. Which of the following steel with 0.3% - 0.47% mean carbon content and has Jow-hardenablity? A. SAL. 1335 B. SAE 2330 C. SAE 4140 D. SAE 8362 49. Which of the following is a special type of nickel that is corrosion resistant and has a high ductility and heat resistance. A. Duranickel B. High-Carbon Nickel C. Low-Carbon Nickel D. Nickel + carbon 50. In the absence of friction, a simple machine is an ideal machine if the efficiency is A. less tham 1 B. 1 C. Zero D. greater than 1 33. Which of the following is a form of an inclined plane? A. Pulley B. Screw v C. Lever D. Wheel and axle 34. What is the ideal mechanical advantage of a machine that changes only the direction of the input force? A. less than 1 B. zero C. 1 D. greater than 1 35. Ackermann steering gear is made up of A. Sliding and rotary pairs B. Rolling pairs C. Turning pairs D. Rolling and sliding pairs 36. What is the combination of applied normal and shear stresses that produces maximum principal normal stress or minimum principal normal stress, with a third principal stress between or equivalent to the extremes? A. Principal shear stress. C. Maximum shear stress B. Principal normal stress D. Bending and shear stresses 37. What is the other term for the Maximum-Shear-Stress Theory, as a failure prediction theory? A. von Mises criterion C. Coulomb-Mohr theory B. Tresca yield criterion D. Modified Mohr theory 38. For a kinematic chain to be considered as mechanism A. None of the links should be fixed C. Two links should be fixed B. One link should be fixed D. There is no such criterion 39. The motion of a shaft in a circular hole is an example of motion. A. successful constraint C. free B. completely constraint D. incompletely constraint 40. The instantaneous center of rotation of a rigid thin disc rolling without slip on a plane rigid surface is located at A. the center of the disc B. an infinite distance perpendicular to the plane surface C. the point of contact D. the point on the circumference situated vertically opposite to the contact point 41. For a 4-bar linkage in toggle position, the value of mechanical advantage is A. Infinity B. 0.5 C. 1 D. O 42. It is a correction factor used to account for the nonuniform stress distributions A. Fatigue Stress Concentration Factor C. Stress Concentration Factor B. Geometric Stress concentration factor D. Stress correction factor 43. Fatigue failure occurs when a part is subjected to: A. Compressive stress B. Tensile stress C. Torsional stress D. Fluctuating stress 44. A Kinematic chai.needs a minimum: A. 2 links and 2 turning pairs C. 4 links and 4 turning pairs B. 3 links and turning pairs D. 3 links and 2 turning pairs 45. The total permissible variation in the size of dimension: the difference between the limits of size. A. Allowance B. Tolerance C. variance D. Interface 46. The total deformation measured in the direction of the line of stress. A. Axial deformation B. Elongation C. Strain D. Unit stress 47. The maximum stress to which a material can be subjected without a trace of any permanent set remaining upon a complete withdrawal of the stress. A. Ultimate limit B. Proportional limit C. Endurance limit D. Elastic limit 48. Which of the following steel with 0.3% - 0.47% mean carbon content and has Jow-hardenablity? A. SAL. 1335 B. SAE 2330 C. SAE 4140 D. SAE 8362 49. In the absence of friction, a simple machine is an ideal machine if the efficiency is A. less tham 1 B. 1 C. Zero D. greater than 1 33. Which of the following is a form of an inclined plane? A. Pulley B. Screw v C. Lever D. Wheel and axle 34. What is the ideal mechanical advantage of a machine that changes only the direction of the input force? A. less than 1 B. zero C. 1 D. greater than 1 35. Ackermann steering gear is made up of A. Sliding and rotary pairs B. Rolling pairs C. Turning pairs D. Rolling and sliding pairs 36. What is the combination of applied normal and shear stresses that produces maximum principal normal stress or minimum principal normal stress, with a third principal stress between or equivalent to the extremes? A. Principal shear stress. C. Maximum shear stress B. Principal normal stress D. Bending and shear stresses 37. What is the other term for the Maximum-Shear-Stress Theory, as a failure prediction theory? A. von Mises criterion C. Coulomb-Mohr theory B. Tresca yield criterion D. Modified Mohr theory 38. For a kinematic chain to be considered as mechanism A. None of the links should be fixed C. Two links should be fixed B. One link should be fixed D. There is no such criterion 39. The motion of a shaft in a circular hole is an example of motion. A. successful constraint C. free B. completely constraint D. incompletely constraint 40. The instantaneous center of rotation of a rigid thin disc rolling without slip on a plane rigid surface is located at A. the center of the disc B. an infinite distance perpendicular to the plane surface C. the point of contact D. the point on the circumference situated vertically opposite to the contact point 41. For a 4-bar linkage in toggle position, the value of mechanical advantage is A. Infinity B. 0.5 C. 1 D. O 42. It is a correction factor used to account for the nonuniform stress distributions A. Fatigue Stress Concentration Factor C. Stress Concentration Factor B. Geometric Stress concentration factor D. Stress correction factor 43. Fatigue failure occurs when a part is subjected to: A. Compressive stress B. Tensile stress C. Torsional stress D. Fluctuating stress 44. A Kinematic chai.needs a minimum: A. 2 links and 2 turning pairs C. 4 links and 4 turning pairs B. 3 links and turning pairs D. 3 links and 2 turning pairs 45. The total permissible variation in the size of dimension: the difference between the limits of size. A. Allowance B. Tolerance C. variance D. Interface 46. The total deformation measured in the direction of the line of stress. A. Axial deformation B. Elongation C. Strain D. Unit stress 47. The maximum stress to which a material can be subjected without a trace of any permanent set remaining upon a complete withdrawal of the stress. A. Ultimate limit B. Proportional limit C. Endurance limit D. Elastic limit 48. Which of the following steel with 0.3% - 0.47% mean carbon content and has Jow-hardenablity? A. SAL. 1335 B. SAE 2330 C. SAE 4140 D. SAE 8362 49. Which of the following is a special type of nickel that is corrosion resistant and has a high ductility and heat resistance. A. Duranickel B. High-Carbon Nickel C. Low-Carbon Nickel D. Nickel + carbon 50. In the absence of friction, a simple machine is an ideal machine if the efficiency is A. less tham 1 B. 1 C. Zero D. greater than 1 33. Which of the following is a form of an inclined plane? A. Pulley B. Screw v C. Lever D. Wheel and axle 34. What is the ideal mechanical advantage of a machine that changes only the direction of the input force? A. less than 1 B. zero C. 1 D. greater than 1 35. Ackermann steering gear is made up of A. Sliding and rotary pairs B. Rolling pairs C. Turning pairs D. Rolling and sliding pairs 36. What is the combination of applied normal and shear stresses that produces maximum principal normal stress or minimum principal normal stress, with a third principal stress between or equivalent to the extremes? A. Principal shear stress. C. Maximum shear stress B. Principal normal stress D. Bending and shear stresses 37. What is the other term for the Maximum-Shear-Stress Theory, as a failure prediction theory? A. von Mises criterion C. Coulomb-Mohr theory B. Tresca yield criterion D. Modified Mohr theory 38. For a kinematic chain to be considered as mechanism A. None of the links should be fixed C. Two links should be fixed B. One link should be fixed D. There is no such criterion 39. The motion of a shaft in a circular hole is an example of motion. A. successful constraint C. free B. completely constraint D. incompletely constraint 40. The instantaneous center of rotation of a rigid thin disc rolling without slip on a plane rigid surface is located at A. the center of the disc B. an infinite distance perpendicular to the plane surface C. the point of contact D. the point on the circumference situated vertically opposite to the contact point 41. For a 4-bar linkage in toggle position, the value of mechanical advantage is A. Infinity B. 0.5 C. 1 D. O 42. It is a correction factor used to account for the nonuniform stress distributions A. Fatigue Stress Concentration Factor C. Stress Concentration Factor B. Geometric Stress concentration factor D. Stress correction factor 43. Fatigue failure occurs when a part is subjected to: A. Compressive stress B. Tensile stress C. Torsional stress D. Fluctuating stress 44. A Kinematic chai.needs a minimum: A. 2 links and 2 turning pairs C. 4 links and 4 turning pairs B. 3 links and turning pairs D. 3 links and 2 turning pairs 45. The total permissible variation in the size of dimension: the difference between the limits of size. A. Allowance B. Tolerance C. variance D. Interface 46. The total deformation measured in the direction of the line of stress. A. 47.

Strain

machine design 2

ユーザ名非公開 · 5問 · 2年前

machine design 2