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Classification of system - Thermodynamics:
(1) Kitchen refrigerator, (2) Ceiling fan (3) Thermometer in mouth (4) Air compressor
(5) Pressure Cooker (6) Carburetor (7) Radiator of an automobile.
(1) Kitchen refrigerator: Closed system. No mass flow takes place. Electricity is supplied to compressor motor and heat is lost to the atmosphere.
(2) Ceiling fan: Open system. Air flows through fan. Electricity is supplied to fan.
(3) Thermometer in the mouth: Closed system. No mass flow. Heat is given from mouth to the bulb of thermometer.
(4) Air compressor: Open system. Air of low pressure enters and air of high pressure leaves compressor, electrical energy is supplied to drive compressor motor.
(5) Pressure Cooker: Closed system. There is no mass exchange (except small steam leakage). Heat is supplied to cooker.
(6) Carburetor: Open system. Petrol and air enter and mixture of petrol and air leaves the carburetor. No change of energy takes place.
(7) Radiator of an automobile: Open system. Hot water enters and cold water leaves radiator. Heat energy is extracted by air flowing over outer surface of radiator tubes.
Grease Gun: A grease gun is shown in Figure. This is used to supply semi-solid lubricant (grease) for chassis lubrication. Figure : Grease Gun
Explain Gear Milling Milling is a form-cutting process limited to making single gears for prototype or very small batches of gears as it is a very slow and uneconomical method
Compressio n Ratio: It is calculated as shown below Mea n Effective Pressure (P m o r P me f ): Mean effective pressure is the hypothetical consta
A shaft transmits 200kw at 180rev/min between a prime mover and a water pump. calculate the strain energy stored perunit length of the shaft and hence the angle of twist in the sha
HOW TO PREPARE A DRAWING IN FIRST ANGLE PROJECTION AND THIRD ANGLE PROJECTION AND WHAT IS THEIR BASIC PRINCIPLE AND WE DO NOT MAKE DRAWING IN 2ND ANGLE PROJECTION AND 4TH ANGLE PRO
what is the least count of following instrument? vernier caliper micrometer bevel protractor dial
Reduce system to a single force: Q: A system of parallel forces is acting on rigid bar as shown in the figure given below. Reduce this system to a single force
Prlblems 1 & 3 can you provide accurate and clear solved out solutions not done by computer either.
basic cycles
State Hook's law: Sol.: It states that when material is loaded within the elastic limit, the stress is proportional to strain produced by the stress. This means that the rat
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