semplr.

Exams · Certifications · Licensing

ASE Automobile & Light Truck (A1–A8) — Practice Exam

A1 Engine block: practice questions

Our ASE A1–A8 bank has 5 questions on this topic. Here are 3 of them with answers; the full mock exam draws from every topic, like the real one.

Start the free mock exam

Question 1 · A1 Engine Repair

How is cylinder bore taper measured?

  1. By checking piston ring end gap only, at the top of the cylinder bore
  2. By comparing bore diameter at the top and bottom of ring travel
  3. By measuring crankshaft endplay
  4. By measuring across the deck surface
Show the answer

B. By comparing bore diameter at the top and bottom of ring travel — Out-of-round is the difference between diameters measured at right angles.

Question 2 · A1 Engine Repair

How is crankshaft endplay measured?

  1. With a straightedge on the block
  2. With a compression gauge
  3. With Plastigage placed across each of the main and connecting rod bearings
  4. With a dial indicator while prying the crankshaft back and forth
Show the answer

D. With a dial indicator while prying the crankshaft back and forth — The thrust bearing controls endplay.

Question 3 · A1 Engine Repair

Why should connecting rod caps be marked before removal?

  1. It isn't necessary
  2. Caps must go back on the same rod in the same orientation
  3. So the rods can be weighed and balanced as a matched set
  4. So the rods can be reused in another engine
Show the answer

B. Caps must go back on the same rod in the same orientation — Caps are machined with their rods as a set.

More ASE A1–A8 topics