Surface Finish Measurement Test - 2

1. What do you mean by dominant spacing?

Distance between middle point of successive valleys when irregularities are comparatively uniform in shape and size

Distance between successive peaks when irregularities are regardless of shape and size

Distance between successive peaks when irregularities are comparatively uniform in shape and size

Distance between middle point of successive hills when irregularities are comparatively uniform in shape and size

2. Which of the following is true about Tomlinson surface meter?

It is a mechanical instrument

It is a mechanical cum optical instrument

It is an electrical instrument

It is an optical instrument

3. Which of the following is used for the direct measurement of surface quality and commonly used in U.S.A.?

Tomlinson surface meter

Profilometer

Replica method

Talysurf

4. Which of the following parameter is important for specifying surface roughness?

Height, spacing and form of irregularities

Size of irregularity

Spacing of irregularity

Height of irregularities

5. What is meant by roughness?

Minute succession of hills of different height

Minute succession of valleys and hills of same height and same gap

Minute succession of valleys and hills of different height and varied spacing

Minute succession of valleys of different depth

6. Which of the following is necessary for the complete study of surface roughness?

Measurement and analysis of all the components and assessment of combined texture

Analysis of all the component element

Measurement of all the components of elements

Assessment of the effects of combined texture

7. Surfaces produced by straight and cylindrical grinding tools tend to create which type of roughness?

Irregularly spaced but directional roughness

Regularly spaced but non directional roughness

Irregularly spaced but non directional roughness

Regularly spaced but directional roughness

8. How much a stylus instrument can be magnified to plot or find minute irregularities?

50,000 times

5000 times

500 times

50 times

9. Which of the following is true for measurement of surface roughness?

Direction of measurement is parallel to the lay

3 dimensional geometry can be easily measured

Direction of measurement is parallel to the direction of the predominant surface marking

Direction of measurement is perpendicular to the lay