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# Solid Friction Viscosity MCQ (Multiple Choice Questions) PDF Download

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The MCQ: Given that the normal reaction is constant, the friction force is; "Solid Friction: Viscosity" App Download (Free) with answers: Directly proportional to the area of the contact of the given surfaces; Inversely proportional to the area of the contact of the given surfaces; Directly proportional to the square of the area of the contact of the given surfaces; Independent of the area of the contact of the given surfaces; to learn online certification courses. Practice Solid Friction Viscosity Quiz Questions, download Apple eBook (Free Sample) for online degree programs.

## Solid Friction Viscosity MCQs: Questions and Answers

MCQ 1:

Magnitude of the coefficient of viscosity is given by

1. frictional force ⁄ (area × velocity gradient)
2. (frictional force × velocity gradient) ⁄ area
3. (frictional force × area) ⁄ velocity gradient
4. None of the above
MCQ 2:

Given that the normal reaction is constant, the friction force is

1. directly proportional to the area of the contact of the given surfaces
2. inversely proportional to the area of the contact of the given surfaces
3. directly proportional to the square of the area of the contact of the given surfaces
4. independent of the area of the contact of the given surfaces
MCQ 3:

Coefficient of viscosity may be expressed in units of

1. kg s m-2
2. kg m s-2
3. N s m-2
4. N m s-2
MCQ 4:

Coefficient of static friction is equal to

1. limiting friction force (F) × normal reaction force (R)
2. limiting friction force (F) ⁄ normal reaction force (R)
3. normal reaction force (R) ⁄ limiting friction force (F)
4. None of the above
MCQ 5:

Dimensions of coefficient of friction are

1. [M] [L] [T]-2
2. [M]-1 [L]-1 [T]²
3. [M] [L]-1 [T]-1
4. It's a dimensionless quantity

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