Machine Design The coefficient of friction in belt drive depends upon Materials of belt and pulley Material of belt Material of pulley Belt velocity Materials of belt and pulley Material of belt Material of pulley Belt velocity ANSWER DOWNLOAD EXAMIANS APP
Machine Design For hardening alloy steels and high speed steels, they are heated to 500 to 600°C 1300 to 1500°C 700 to 900°C 1100 to 1300°C 500 to 600°C 1300 to 1500°C 700 to 900°C 1100 to 1300°C ANSWER DOWNLOAD EXAMIANS APP
Machine Design The efficiency of a square threaded screw is maximum if the helix angle is equal to(Where φ = Angle of friction) 45° + φ/2 90° - φ 45° - φ/2 45° - φ 45° + φ/2 90° - φ 45° - φ/2 45° - φ ANSWER DOWNLOAD EXAMIANS APP
Machine Design The taper on cotter varies from 1 in 15 to 1 in 10 1 in 48 to 1 in 24 1 in 32 to 1 in 24 1 in 24 to 1 in 20 1 in 15 to 1 in 10 1 in 48 to 1 in 24 1 in 32 to 1 in 24 1 in 24 to 1 in 20 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The spring mostly used in gramophones is Conical spring Helical spring Flat spiral spring Volute spring Conical spring Helical spring Flat spiral spring Volute spring ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the belt is transmitting maximum power, the belt speed should be (Where, m = mass of belt per meter (kg/m) and Pmax = maximum permissible tension in belt (N)) √(3m /Pmax) √(Pmax / 3m) √(Pmax / m) √(Pmax / 2m) √(3m /Pmax) √(Pmax / 3m) √(Pmax / m) √(Pmax / 2m) ANSWER DOWNLOAD EXAMIANS APP
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