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GATE Previous Year Questions: Tension in Band Brake, Machine Design Video Lecture - Mechanical Engineering

FAQs on GATE Previous Year Questions: Tension in Band Brake, Machine Design Video Lecture - Mechanical Engineering

1. What is the formula to calculate the tension in a band brake?
Ans. The formula to calculate the tension in a band brake is T = (F * r) / (2 * μ * e), where T is the tension, F is the force applied, r is the radius of the drum, μ is the coefficient of friction, and e is the angle of contact.
2. How does the tension in a band brake affect its effectiveness?
Ans. The tension in a band brake plays a crucial role in determining its effectiveness. Higher tension results in increased frictional force between the band and the drum, leading to better braking performance. Conversely, lower tension may reduce the braking efficiency and can result in slippage.
3. What factors influence the tension in a band brake?
Ans. Several factors influence the tension in a band brake, including the magnitude of the applied force, the radius of the drum, the coefficient of friction between the band and the drum, and the angle of contact. These factors collectively determine the effectiveness of the band brake.
4. How does the angle of contact affect the tension in a band brake?
Ans. The angle of contact in a band brake is directly proportional to the tension. As the angle of contact increases, the tension in the band also increases. This relationship is important to consider when designing band brakes to ensure optimal performance.
5. What role does the coefficient of friction play in determining the tension in a band brake?
Ans. The coefficient of friction is a critical factor in determining the tension in a band brake. A higher coefficient of friction between the band and the drum leads to higher tension and better braking performance. It is essential to select materials with suitable coefficients of friction to achieve the desired tension and braking efficiency.
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