Question

         Consider the following statements regarding the turning moment diagram of a reciprocating engine shown in the below figure:                                                                     

  (1) It is a four stroke IC engine

(2) The compression stroke is 0⁰ to 180⁰

(3) Mean turning moment $T_{m}=580/\pi N-m$

(4) It is a multi – cylinder engine

 

         Which of these statements are correct?

(a) 1,2 and 3           (b) 1,2 and 4              

(c) 2,3 and 4           (d) 1,3 and 4