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GATE Past Year Questions: Brakes, Clutches & Ropes | Design of Machine Elements - Mechanical Engineering PDF Download

Question for GATE Past Year Questions: Brakes, Clutches & Ropes
Try yourself:A wire rope is designated as 6 x 19 standard hoisting. The numbers 6 × 19 represent

[2003]

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Question for GATE Past Year Questions: Brakes, Clutches & Ropes
Try yourself:A clutch has outer and inner diameters 100 mm and 40 mm respectively. Assuming a uniform pressure of 2 MPa and coefficient of friction of liner material 0.4, the torque carrying capacity of the clutch is

[2008]

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Question for GATE Past Year Questions: Brakes, Clutches & Ropes
Try yourself:A disk clutch is required to transmit 5 kW at 2000 rpm. The disk has a friction lining with coefficient of friction equal to 0.25. Bore radius of friction lining is equal to 25 mm. Assume uniform contact pressure of 1 MPa. The value of outside radius of the friction lining is

[2006]

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Question for GATE Past Year Questions: Brakes, Clutches & Ropes
Try yourself:Axial operation claw clutches having selflocking tooth profile

[1987]

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Question for GATE Past Year Questions: Brakes, Clutches & Ropes
Try yourself:For the brake shown in the figure, which one of the following is TRUE?
GATE Past Year Questions: Brakes, Clutches & Ropes | Design of Machine Elements - Mechanical Engineering

 [2016,Set-2]

 

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Question for GATE Past Year Questions: Brakes, Clutches & Ropes
Try yourself:A force of 400 N is applied to the brake drum of 0.5 m diameter in a band brake system as shown in figure, where the wrapping angle is 180°. If the coefficient of friction between the drum and the band is 0.25, the braking torque applied, in Nm is
GATE Past Year Questions: Brakes, Clutches & Ropes | Design of Machine Elements - Mechanical Engineering

[2012]

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Question for GATE Past Year Questions: Brakes, Clutches & Ropes
Try yourself:A band brake having bandwidth of 80 mm, drum diameter of 250 mm, coefficient of friction of 0.25 and angle of wrap of 270 degrees is required to exert a friction torque of 1000 N m.The maximum tension (in kN) developed in the band is

[2010]

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Question for GATE Past Year Questions: Brakes, Clutches & Ropes
Try yourself:A block-brake shown below has a face width of 300 mm and a mean coefficient of friction of 0.25. For an activating force of 400 N, the braking torque in Nm is

GATE Past Year Questions: Brakes, Clutches & Ropes | Design of Machine Elements - Mechanical Engineering

[2007]

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Question for GATE Past Year Questions: Brakes, Clutches & Ropes
Try yourself:In a band brake the ratio of tight side band tension to the tension on the slack side is 3. If the angle of overlap of band on the drum is 180°, the coefficient of friction required between drum and the band is

[2003]

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FAQs on GATE Past Year Questions: Brakes, Clutches & Ropes - Design of Machine Elements - Mechanical Engineering

1. What is the purpose of brakes in mechanical engineering?
Ans. Brakes in mechanical engineering are used to slow down or stop the motion of a rotating or moving object. They convert the kinetic energy into heat energy by applying frictional force. This helps in preventing accidents and controlling the speed of the object.
2. How do brakes work in mechanical engineering?
Ans. Brakes work in mechanical engineering by applying frictional force to the rotating or moving object. This frictional force is generated by pressing brake pads or shoes against a rotating disc or drum. The friction between these components converts the kinetic energy into heat energy, which slows down or stops the object.
3. What are the different types of clutches used in mechanical engineering?
Ans. There are various types of clutches used in mechanical engineering, including: - Friction Clutch: It uses frictional force for power transmission between two rotating shafts. - Electromagnetic Clutch: It uses an electromagnetic field to engage or disengage the clutch. - Hydraulic Clutch: It uses hydraulic pressure to engage or disengage the clutch. - Centrifugal Clutch: It uses centrifugal force to engage or disengage the clutch based on the rotational speed of the shaft.
4. How does a rope transmit force in mechanical engineering?
Ans. In mechanical engineering, a rope transmits force through tension. When a force is applied to one end of the rope, it creates tension along the entire length of the rope. This tension force is transmitted from one end to the other, allowing the rope to transmit force and perform tasks such as lifting heavy objects or pulling loads.
5. What factors should be considered when selecting brakes and clutches in mechanical engineering applications?
Ans. When selecting brakes and clutches in mechanical engineering applications, several factors should be considered: - Torque requirements: The brakes and clutches should be able to handle the required torque for the specific application. - Temperature limitations: They should be able to withstand the temperature generated during operation without any damage. - Speed and acceleration: The brakes and clutches should be capable of handling the desired speed and acceleration of the system. - Maintenance and reliability: Consider the ease of maintenance and reliability of the selected brakes and clutches for long-term usage. - Cost-effectiveness: Evaluate the cost-effectiveness of the brakes and clutches based on the specific application requirements and budget constraints.
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