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GATE ME 2024
Numerical
+2
-1.33

A band brake shown in the figure has a coefficient of friction of 0.3. The band can take a maximum force of 1.5 kN. The maximum braking force (F) that can be safely applied is _______ N (rounded off to the nearest integer).

GATE ME 2024 Machine Design - Design of Brakes and Clutches Question 5 English
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2
GATE ME 2022 Set 2
Numerical
+2
-0

A shaft AC rotating at a constant speed carries a thin pulley of radius r = 0.4 m at the end C which drives a belt. A motor is coupled at the end A of the shaft such that it applies a torque M, about the shaft axis without causing any bending moment. The shaft is mounted on narrow frictionless bearings at A and B where AB = BC = L = 0.5 m. The taut and slack side tensions of the belt are T1 = 300 N and T2 = 100 N, respectively. The allowable shear stress for the shaft material is 80 MPa. The self-weights of the pulley and the shaft are negligible. Use the value of π available in the on-screen virtual calculator. Neglecting shock and fatigue loading and assuming maximum shear stress theory, the minimum required shaft diameter is mm (round off to 2 decimal places).

GATE ME 2022 Set 2 Machine Design - Design of Brakes and Clutches Question 2 English
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3
GATE ME 2016 Set 2
Numerical
+2
-0
A mass of $$2000$$ kg is currently being lowered at a velocity of $$2$$ $$m/s$$ from the drum as shown in the figure. The mass moment of inertia of the drum is $$150$$ kg-m2. On applying the brake, the mass is brought to rest in a distance of $$0.5$$ $$m.$$ The energy absorbed by the brake (in $$kJ$$) is __________________. GATE ME 2016 Set 2 Machine Design - Design of Brakes and Clutches Question 7 English
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4
GATE ME 2014 Set 3
Numerical
+2
-0
A drum brake is shown in the figure. The drum is rotating in anticlockwise direction. The coefficient of friction between drum and shoe is $$0.2.$$ The dimensions shown in the figure are in mm. The braking torque (in $$N.m$$) for the brake shoe is ________. GATE ME 2014 Set 3 Machine Design - Design of Brakes and Clutches Question 14 English
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