The following data refer to a laboratory experiment with rope brake____.Diameter of the flywheel=1m Diameter of the rope = 10mm , Dead weight on the brake = 50kg , Speed of the engine = 200rpm , Spring balance reading = 120N . Find brake power of the engine.

Related MCQs

• In a simple band brake applied to a shaft carrying a flywheel of mass 250kg and radius of gyration 350mm , one end of the band is attached to the fulcrum and the other at a distance 300 mm from the fulcrum. The angle embraced by the band is 2250 and the brake drum diameter is 220 mm coefficient of friction 0.25 and the shaft speed is 300 rpm clockwise. Determine the brake torque when a force of 150 N is applied
• Find the brake power of the engine running at 755 rpm. The length of lever from center of pulley is 1.43 m. The weight in pan is 40 kg.
• Refer fig.4. It shows a band brake arrangements. The brake to work with force at A upwards and direction of drum clockwise____.
• A bicycle and rider is mass 125 kg are travelling at speed of 10km/hr. The rider applies a break to the near wheel of 1 m diameter. How far the bicycle will travel before it comes to rest? The pressure applied to the brake is 120 N and μ = 0.05. Also find the number of revolutions made by bicycle before coming to rest.
• A single block brake as shown in Fig.6 has a brake drum diameter of 1m and the angle of contact is 300. It takes 280 Nm torque at 300rpm. The coefficient of friction is 0.35. Determine the required force 'P' to be applied when the rotation of drum is clockwise.
• In a differential band brake, as shown in fig.1the length OA is greater than OB. In order to apply the brake, the force at C should____.
• In a self locking brake, the force required to apply the brake is_____.
• When the frictional force helps the applied force in applying the brake, the brake is____.
• A multiple clutch with 5 plate transmits torque of 400 N-m. If µ = 0.5 and inner radius = 10 cm and outer radius = 15 cm and four spring expert-axial and load per spring is ___.
• Refer fig.3, The best choice for this brake is to have pivot point at____.