WSC
Friction Fundamentals Quiz
Test your knowledge about the laws of friction and its applications with this engaging quiz! Whether you're a student or a professional, this quiz will challenge your understanding of how friction affects motion and its significance in our daily lives.
Key Features:
- 11 multiple-choice questions
- Instant feedback on your answers
- Learn about useful and wasteful friction
1. Which is the law of friction?
Friction force is independent over the area and shape of contacting surfaces
Frictional force is inversely proportional to the normal reaction
Frictional force acts in the same direction of motion
Frictional force is not a dependent on nature of contacting surface
2. What is the direction of frictional force against a motional object?
Inclined to the object
Opposite to the object
Parallel to the object
Perpendicular to the object
3.Which force is directly proportional to the normal reaction between contacting surfaces?
Pulling force
Pushing force
Frictional force
Allied force
4.Which one of the following acts in between the wheels and roads, if vehicles are able to run on roads?
Friction
Corrosion
Erosion
Motion
5. Which is useful friction?
Rings in the cylinder
Crank shaft bearings
Wheel hub bearings
Brake shoe lining
6.6 Which is wasteful friction?
Rear axle gear
Tyres on the floor
Brake shoe lining
Clutch lining
7.Which depends on the frictional force?
Type of metal
Contact surfaes
Quantity of the contacting metals
Quality of metals
8. Which symbol is used to denote co-efficient of friction?
α (Alpha )
μ (Meu )
β (Beta)
γ (Gamma)
9.What is the co-efficient of friction if the angle of friction is θ?
Sin θ
Cos θ
Tan θ
Cot θ
10What type of lubricant is used in wick feed lubrication system
Lub-oil
Grease
Coolant
Cutting oil
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