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This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Machine Kinematics knowledge and support exam preparation. Choose a topic below to get started.
1. |
When the lubricants are smeared on two different surfaces, it is found that the force of friction with one lubricant is different than that of the other. |
A. | True |
B. | False |
Answer» B. False | |
2. |
The lubricant which gives ______________ force of friction is said to have greater oiliness. |
A. | greater |
B. | lesser |
C. | similar |
D. | none of the mentioned |
Answer» C. similar | |
3. |
_____________ is the friction, experienced between the rubbing surfaces, when the surfaces have a thick layer of the lubricant. |
A. | Fluid friction |
B. | Solid friction |
C. | Boundary friction |
D. | None of the mentioned |
Answer» B. Solid friction | |
4. |
When the lubricants are smeared on two different surfaces, it is found that the force of friction with one lubricant is different than that of the other? |
A. | True |
B. | False |
Answer» B. False | |
5. |
The lubricant which gives ______________ force of friction is said to have greater oiliness. |
A. | greater |
B. | lesser |
C. | similar |
D. | none of the mentioned |
Answer» C. similar | |
6. |
The absolute viscosity of a lubricant may be defined as the force required to cause a plate of unit area to slide with unit velocity relative to a parallel plate. |
A. | True |
B. | False |
Answer» B. False | |
7. |
_____________ is a measure of the resistance offered to the sliding one layer of the lubricant over an adjacent layer. |
A. | Viscocity |
B. | Density |
C. | Oiliness |
D. | None of the mentioned |
Answer» B. Density | |
8. |
______________ is the friction, experienced between the rubbing surfaces, when the surfaces have a very thin layer of lubricant. |
A. | Pivot friction |
B. | Solid friction |
C. | Boundary friction |
D. | None of the mentioned |
Answer» D. None of the mentioned | |
9. |
______________ is the friction experienced between two dry and unlubricated surfaces in contact. |
A. | Pivot friction |
B. | Solid friction |
C. | Boundary friction |
D. | None of the mentioned |
Answer» C. Boundary friction | |
10. |
_____________ is the friction, experienced by a body, due to the motion of rotation as in case of foot step bearings. |
A. | Pivot friction |
B. | Solid friction |
C. | Dry friction |
D. | None of the mentioned |
Answer» B. Solid friction | |