ASVAB Automotive Information Practice Test 937978

Question 2 of 5
Firing Order

The stroke cycle of an engine is governed by the crankshaft which serves to regulate the firing order of the cylinders. All cylinders are not on the same stroke at the same time and correct firing order is important to balance engine operation and minimize vibrations. A common firing order for four-cylinder engines is 1-3-4-2 which indicates that cylinders 1 and 3 fire (power stroke)together and cylinders 4 and 2 fire together.

What function does a two-stroke cycle engine perform on the second stroke?

fuel intake and compression

combustion and exhaust

fuel intake and exhaust

compression and combustion