Key Answers of QUIZ(Elements of Mechanical Engineering)

          Q.1.  (d) 540 degree

          Q.2.  (C) beginning of the Suction stroke

          Q.3.  (b) Exhaust gases

          Q.4.  (C) Lighter

          Q.5.  (d) All of the above
               


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Quiz- Question-5, click on commnet to answer

The function of the piston rings in IC- engines is

a)     To dissipate heat to cylinder walls

b)    Seal the cylinder

c)     Prevent piston from wear

                          d)  All of the above


                         

Quiz- Question-4, click on commnet to answer

The  flywheel used in a  2-stroke engines as compared to 4-stroke engine is

a)     Heavier

b)    Same in weight

c)     Lighter

d)    None of the above

Quiz- Question-3, click on commnet to answer

Most of  the heat generated in IC- engines is lost  to

                        

                         a)     Cooling water

                         b)    Exhaust gases

                         c)     Lubricating oils

                    d)  Radiation
           

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Quiz- Question-2, click on commnet to answer

In internal combustion engines, the temperature inside the engine cylinder is minimum during the

                           a)     Beginning of the exhaust stroke

                           b)    End of the suction stroke

                           c)     Beginning of the suction stroke

                           d)    End of the power stroke                        

                                 

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Quiz- Question-1, click on commnet to answer

In 4-stroke engines the Power stroke is completed when the crankshaft rotates through

                a)     720⁰

                b)    180⁰

                c)     90⁰

                d)    540⁰

                                 

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How Does An Air Conditioner Work..

https://youtu.be/6OU7WHgJ_cY

Dear Students Kindly click on below link to access REFRIGERATION AND AIRCONDITIONING (Module-5) Lecture notes

Thomas Alva Edison 1922 rare Interview documentary

https://www.youtube.com/watch?v=ep5NGVOi6QE