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A flat belt, 8 mm thick and 100 mm wide transmits power between two pulleys, running at 1600 m/min. The mass of the belt is 0.9 kg/m length. The angle of lap in the smaller pulley is 165° and the coefficient of friction between the pulley and belt is 0.3. If the maximum permissible stress in the belt is 2 MN/m2,
Determine :
1. maximum power transmitted ; and
2. Initial tension in the belt.
A piston-cylinder assembly fitted with a paddle wheel contains air, initially at p1=30 lbf/in2, T1=540 °F, and V1=4 ft3. The air undergoes a process to a final state where p2=20 lb
Methods of analysis of trusses: What are the methods of analysis of trusses? What is found when the analysis of a system is done? Sol.: The forces in the members of
(a) The following forces (all pull) act at a point : (6) (i) 20 N North-East (ii) 25 N due North (iii) 20 N 30o East of South (iv) 15 N due East (v) 30 N 60o South o
clamping calulations
a) What are essential needs of a job evaluation plan. Illustrate the point plan method b) Describe factor comparison method of job evaluation. a) What are basic objectives an
Discover the maximum torque: Discover the maximum torque that may be transmitted by the shaft of 400 mm diameter, if the shear stress is not to exceed 50 N/mm 2 . Solution
A hydraulic pipe is 20 cm internal diameter and 5 cm thick. It is needed to sustain an intensities of radial and hoop stress at several radii and plot their variation.
The total resistance of the system between the electrodes consists of (i) The resistance of the work piece R 1 (ii) The contact resistance between the electrodes and the wo
BOILER CLASSIFICATION : (1 ) According to Tube Contents: Boilers can be water tube or fire tube type. In water tube boilers water flows in tubes and in Fire Tube Boilers h
Explain the Heterogeneous System - Thermodynamic Heterogeneous System: A system, which involves two or more phase, is known as heterogeneous system. Such as, Water plus steam,
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