Question
Download Solution PDFA brake-block shown below has a face width of 300 mm.
The mean coefficient of friction is 0.25. For an activating force of 400 N, the braking torque in Nm is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Free body diagram of lever and brake dram are
For lever moment about O, ∑Mo = 0
⇒ (400 N) × (400 + 200) mm = N × 200 mm
Tangential force, Ft = μN = 0.25 × 1200 = 300 N
Braking torque = Tb = Ft × r = 300 × 0.15 = 45 N.m
Last updated on May 30, 2025
-> The ISRO Technical Assistant recruitment 2025 notification has been released at the official website.
-> Candidates can apply for ISRO recruitment 2025 for Technical Assistant from June 4 to 18.
-> A total of 83 vacancies have been announced for the post of Technical Assistant.
-> The Selection process consists of a written test and a Skill test.
-> Candidates can also practice through ISRO Technical Assistant Electrical Test Series, ISRO Technical Assistant Electronics Test Series, and ISRO Technical Assistant Mechanical Test Series to improve their preparation and increase the chance of selection.