Question: Consider the following statements for a 4-cylinder in-line engine whose cranks are arranged at regular intervals of (90^{circ}). 1). There are 8 possible firing orders

Consider the following statements for a 4-cylinder in-line engine whose cranks are arranged at regular intervals of $90^{\circ}$.

1). There are 8 possible firing orders for the engine 2). Primary force will remain unbalanced for some firing orders Which of the statements given above is/are correct?

(a) 1 only

(b) 2 only

(c) Both 1 and 2

(d) Neither 1 nor 2 .

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