Question

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chapter 2 tools and measurement

1. identify the parts of the machinist’s vise in the following illustration.
2. if a flywheel holder is not available, a(n) ____ can be used to hold the flywheel while the flywheel nut is removed.
3. on a severely worn engine, a(n) ____ may need to be used to shave the top portion of the cylinder before the piston can be removed.
4. a ring spreader must be used to install new rings because ____.

a. the rings are under so much tension they cannot be spread by hand
b. the ring spreader cuts the ring groove so the rings will fit better
c. the rings may become distorted if they are installed by hand
d. none of the above.

1. a ring compressor is used to ____.

a. compress the rings so they will not catch on the wear ridge when the piston is removed
b. reshape distorted rings so they can be reused
c. clean carbon out of the ring grooves so the rings seat properly
d. none of the above.

1. true or false? a glaze breaker is used to remove cylinder taper during an engine rebuild.
2. ____ are test instruments used to measure engine speed.
3. a spark tester must be connected between the spark plug wire and a(n) ____ part of the engine.
4. a compression tester measures the ____.

a. distance traveled by the piston
b. maximum air pressure created in the cylinder
c. amount of valve lift
d. none of the above.
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Explanation:

Question 12: Identify the parts of the machinist’s vise in the following illustration.

To identify the parts of a machinist's vise, we recall the typical components: A - fixed jaw, B - movable jaw, C - screw mechanism, D - handle. But since the illustration is provided (even though we can infer standard vise parts), we match the labels. However, as the exact illustration's part labels (A, B, C, D) need to be identified, we use standard vise anatomy: A is likely the fixed jaw, B the movable jaw, C the screw, D the handle. But without the exact image details, we assume standard labeling. Wait, the question is to identify parts A, B, C, D. Let's assume:

• A: Fixed Jaw (holds the workpiece, stationary part)
• B: Movable Jaw (moves via the screw to clamp)
• C: Screw Mechanism (adjusts the movable jaw)
• D: Handle (turns the screw)

But since the user's image has A, B, C, D labeled, we need to match. However, typical machinist vise parts: A is fixed jaw, B is movable jaw, C is the screw assembly, D is the handle.

To hold a flywheel while removing its nut, a tool that can grip or lock the flywheel is needed. A vice (machinist’s vise) or a specialized flywheel holding tool, but if the holder is unavailable, a suitable alternative (like a strap wrench or a vise, but in engine work, a "vise" or a "clamp"—but the options? Wait, the question is fill - in, but from context, a "vise" (machinist’s vise) or a "flywheel holding tool substitute". But likely, a "vise" or a "clamp", but in the context of the chapter (Tools and Measurement), a "vise" (machinist’s vise) can be used. Wait, the question is a fill - in, but maybe the answer is "vise" (machinist’s vise) as per the illustration in Q12.

To shave the top of a cylinder (deglaze or remove wear), a "cylinder hone" or a "cylinder boring tool", but more likely a "cylinder hone" or a "reamer"? Wait, no—when the cylinder is worn, a "cylinder hone" is for honing, but to shave (remove material from the top), a "cylinder boring bar" or a "cutter". But in engine rebuilding, a "cylinder hone" is for finishing, but to remove the top ridge (the worn part at the top of the cylinder), a "ridge reamer" is used. So the answer is "ridge reamer" (or "cylinder reamer" for the top ridge).

Answer:

• A: Fixed Jaw
• B: Movable Jaw
• C: Screw Mechanism (or Jaw Screw)
• D: Handle

Question 13: If a flywheel holder is not available, a(n) ____ can be used to hold the flywheel while the flywheel nut is removed.