Machine Design ( 1st Set )

20問 • 2年前

問題一覧

1. When the hole is smaller than the shaft, it will take pressure to put the parts together. The allowance is said to be negative and is termed:

D. interference of metal

2. It is a science of motion that can be solved in terms of scalar or vector algebra:

A. kinematics

3. Which of the following is not a structural class of steel ?

B. tool and die steel

4. The maximum stress to which a material may be subjected before failure occurs:

B. ultimate stress

5. The property that characterizes a material ability to be drawn into a wire;

A. ductility

6. The three moment of equation may be used to analyze:

B. continuous beam

7. What type of gear is used for high speed operation ?

A. helical

8. The phenomenon of continuous stretching under-load even if the stress is less than the yield point:

D. creep

9. Endurance strength is nearly proportional to the ultimate strength but not with ______.

A. yield strength

10. The best instrument for measuring a thousand of an inch:

A. micrometer

11. Separate forces which can be so combined re called:

D. component forces

12. The property of matter which causes it to resist any change in its motion or state of rest:

C. inertia

13. Negative allowance is also called ________.

A. interference of metal

14. Ratio of unit lateral deformation to unit longitudinal deformation.

A. Poisson's ratio

15. Length of contact between two mating parts in a screw and nut threads measured axially is called.

C. length of engagement

16. If the velocity of a mass is small all the time during which motion takes place is called:

B. uniform motion

17. The function of clutch in the machine is:

C. to disconnect or connect the drive at will

18. A pair of equal and opposite ( not collinear ) forces that tend to cause a rotation of a body

A. couple

19. Could be defines as simply push or pull.

D. force

20. Used to change rotary motion to reciprocating motion

A. rack gears

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問題一覧

1. When the hole is smaller than the shaft, it will take pressure to put the parts together. The allowance is said to be negative and is termed:

D. interference of metal

2. It is a science of motion that can be solved in terms of scalar or vector algebra:

A. kinematics

3. Which of the following is not a structural class of steel ?

B. tool and die steel

4. The maximum stress to which a material may be subjected before failure occurs:

B. ultimate stress

5. The property that characterizes a material ability to be drawn into a wire;

A. ductility

6. The three moment of equation may be used to analyze:

B. continuous beam

7. What type of gear is used for high speed operation ?

A. helical

8. The phenomenon of continuous stretching under-load even if the stress is less than the yield point:

D. creep

9. Endurance strength is nearly proportional to the ultimate strength but not with ______.

A. yield strength

10. The best instrument for measuring a thousand of an inch:

A. micrometer

11. Separate forces which can be so combined re called:

D. component forces

12. The property of matter which causes it to resist any change in its motion or state of rest:

C. inertia

13. Negative allowance is also called ________.

A. interference of metal

14. Ratio of unit lateral deformation to unit longitudinal deformation.

A. Poisson's ratio

15. Length of contact between two mating parts in a screw and nut threads measured axially is called.

C. length of engagement

16. If the velocity of a mass is small all the time during which motion takes place is called:

B. uniform motion

17. The function of clutch in the machine is:

C. to disconnect or connect the drive at will

18. A pair of equal and opposite ( not collinear ) forces that tend to cause a rotation of a body

A. couple

19. Could be defines as simply push or pull.

D. force

20. Used to change rotary motion to reciprocating motion

A. rack gears