Steam Engine | Steam Engine Objective Type Questions and answers


21. The function of D- slide valve in a steam engine is.......


   A.To guide motion of the piston rod and prevent it from bending

   B.To transfer motion from the piston to the crosshead

   C.To convert heat energy of the steam into mechanical work

   D.To exhaust steam from the cylinder at proper moment


✔ View Answer


D.To exhaust steam from the cylinder at proper moment

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22. The clearance in the engine cylinder.......


   A.Increases the mean effective pressure

   B.Increases the workdone

   C.Decreases the efficiency of the engine

   D.All of the above


✔ View Answer


D.All of the above

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23. The diagram factor is the ratio of the......


   A.Area of the actual indicator diagram to the area of the theoritical indicator diagram

   B.Actual workdone per stroke to the theoritical workdone per stroke

   C.Actual mean effective pressure to the theoritical mean effective pressure

   D.All of the above


✔ View Answer


D.All of the above

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24. For the same length of stroke and speed of crankshaft,the piston speed of a double acting steam engine is......the piston speed of a single acting steam engine


   A.Equals to

   B.Two times

   C.Four times

   D.All of the above


✔ View Answer


B.Two times

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25. In case of condensing steam engines,the pressure of steam in the cylinder during exhaust stroke is.......condenser pressure


   A.Equals to

   A.Lower than

   C.Higher than


✔ View Answer


C.Higher than

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