Articles Posted in the " answers " Category

  • THERMODYNAMICS QUESTION ANSWERS CLASS NOTES

    THERMODYNAMICS QUESTION ANSWERS CLASS NOTES

    THERMODYNAMICS QUESTION ANSWERS CLASS NOTES What is the Difference between a control volume and control surface? ANS: Fig. Control Volume & Control Surface Control volume is a 3 dimensional space in a thermodynamic system (say  a compressor or pump). There will be mass transfer, energy transfer and momentum transfer across the control volume. Select control […]


  • INTERNAL COMBUSTION ENGINES QUESTIONS WITH ANSWERS

    INTERNAL COMBUSTION ENGINES QUESTIONS WITH ANSWERS

    INTERNAL COMBUSTION ENGINES Fig. Internal Combustion Petrol Engine QUESTIONS WITH ANSWERS Define supercharging in IC Engines. A supercharger is a compressor which compresses air 6 to 8 psi above atmospheric pressure. This gives more oxygen for better burning of fuel. Thus engine produces more power.  Supercharger gets power from the IC engine crankshaft through a […]


  • PROJECTION OF POINTS CLASS NOTES FOR ENGINEERING

    PROJECTION OF POINTS CLASS NOTES FOR ENGINEERING

     PROJECTION OF POINTS CLASS NOTES FOR ENGINEERING    Projection of a point is the most basic. A point can lie in any of the four quadrants It shows the location of a light or a fan point in a building drawing. Two points when join forms a line. For a point, ‘A’ mark front view […]


  • VAPOR ABSORPTION REFRIGERATION QUESTIONS ANSWERS

    VAPOR ABSORPTION REFRIGERATION QUESTIONS ANSWERS

    VAPOR ABSORPTION REFRIGERATION  QUESTIONS ANSWERS   Vapor absorption system can operate without the use of electricity. The heat energy operates the system. Obtain heat  by burning of fuel or wood & solar energy. Use of solar energy makes it eco-friendly. It resembles very much with a vapor compression system. It uses different means of compression. […]


  • FLYWHEEL AND GOVERNOR-SHORT QUESTION ANSWERS

    FLYWHEEL AND GOVERNOR-SHORT QUESTION ANSWERS

      FLYWHEELS AND GOVERNOR  SHORT QUESTION ANSWERS Question answers help in understanding in a better way. Flywheels stores energy when in excess during the working stroke. Flywheel supplies back energy in suction, compression and exhaust strokes. Question answers help  in practical applications with ease. It also help in making improvements.  What is a flywheel? It […]


  •  RIVETED, BOLTED & COTTER JOINTS SHORT QUESTION ANSWERS

     RIVETED, BOLTED & COTTER JOINTS SHORT QUESTION ANSWERS

    RIVETED, BOLTED & COTTER JOINTS SHORT QUESTION ANSWERS Question answers make the concept clear. Joints play an important role in manufacturing. Different joints used in different applications. No assembly is possible without a joint. Riveted joints used in sheet work. These used in boilers. These are easily made leak proof. These can withstand higher temperatures. […]


  • MACHINE DESIGN SHORT QUESTION ANSWERS CLASS NOTES

    MACHINE DESIGN SHORT QUESTION ANSWERS CLASS NOTES

     MACHINE DESIGN SHORT QUESTION ANSWERS Question answers are very helpful in better understanding. These improve clarity too. All this is helpful in design of a component. Design is process to create an object /machine. It performs the required function satisfactorily. It is durable & have minimum cost. It involves (i) Selection of material of construction […]


  • CENTRIFUGAL COMPRESSOR SHORT QUESTION ANSWERS

    CENTRIFUGAL COMPRESSOR SHORT QUESTION ANSWERS

    CENTRIFUGAL COMPRESSOR SHORT QUESTION ANSWERS  Question answers make the concept clear and well understood. This helps in handling difficulties in design and operation. Explain slip factor and work input factor in a centrifugal compressor. Slip factor There are pressure and velocity differences between the leading and trailing faces of the impeller blades. There is a […]


  • PROJECTIONS OF A LINE QUESTION ANSWERS CLASS NOTES

    PROJECTIONS OF A LINE QUESTION ANSWERS CLASS NOTES

    PROJECTIONS OF A LINE QUESTION ANSWERS CLASS NOTES Question answers are very important. These increase the depth of understanding & clarity. Then fundamentals are easily applied in real life. Obtain straight line from two points. A straight line can have numerous positions in space. Planes form from straight lines. Use first angle projection. Seen from top, […]


  • FLUID MECHANICS QUESTION ANSWERS CLASS NOTES

    FLUID MECHANICS QUESTION ANSWERS CLASS NOTES

    FLUID MECHANICS QUESTION ANSWERS CLASS NOTES Question answers increase understanding and clarity. It becomes easy to apply the fundamentals in real life applications. It helps in further improvements and better design. Differentiate dynamic and kinematic viscosity. Sr. No. Dynamic viscosity Kinematic viscosity 1. It is resistance to fluid flow. It gives an idea about the […]