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a) A pair of 20 degree full depth involute spur gears having 30 and 50 teeth respectively of module 4mm are in mesh. The smaller gear rotates at 1000 rpm. Determine-
1) Contact Ratio 15
2) Sliding velocity at engagement and at disengagement of pair of a teeth.
b) Two spur wheels have 30 teeth each of involute shape. The circular pitch is 25mm and pressure angle is 20 degree. Evaluate the addendum of the wheels, if the arc of contact is twice the circular pitch.
T ensile Stress: The stress induced in a body, when subjected to two equal and opposite pulls as shown in figure (a) as a result of which there is an increase in length,
3. A string of length l is fastened to two point A and B at the same level at a distance ‘a’ apart. A ring of weight W can slide on the string and a horizontal force P is applied s
applications of parallelogram
How are footings described and introduced properly? The selection of different types of footings and the need for reinforcing the same are discussed in this unit. Methods of de
3. How to illustrate the meaning of control system in control and automation system? 4. How to illustrate the major role of CPU in a PLC and what is the major role of CPU? 5. How
(a) What is value of drive chain slackness? (b) Write about cleaning procedure and adjustment of drive chain. (c) What is the wear of drive chain, sprocket and adjustment of
Structural Steels Low alloy steels are utilized for structural causes. That type of steels is needed to possess high yield stress, excellent ductility and high fatigue resist
The basic power transmission systems are 1. Belt drive 2. Chain drive and 3. Gear drives. Belt drive is commonly used for transmission of power when exact velocity rat
Write brief notes on the following : (a) Draught System (b) Binary Vapour Cycle (c) Cooling Towers (d) Governing of steam turbines
Vented Causeway: Vented causeways are structures provided with vents (usually pipes) to take care of dry weather perennial flows and which allow water to overflow the paved b
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