Which Engine Problem May Be Indicated by Good Results from a Compression

question 61

Multiple Choice

Which engine problem may be indicated by good results from a compression test and a cylinder leakage test coupled with poor results from a cylinder power balance test?

• A)incorrect valve timing
• B)collapsed lifter
• C)burnt intake valve
• D)worn piston rings

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Definitions:

Hydrogen-bonded Dimers

Pairs of molecules that are connected by hydrogen bonds, often observed in carboxylic acids and alcohols.

Molecular Weights

The sum of the atomic weights of all atoms in a molecule, representing the mass of a molecule relative to the unified atomic mass unit.

Carboxylic Acids

Organic acids characterized by the presence of at least one carboxyl group (-COOH), widely occurring in nature and used in various industrial applications.

Aldehydes

Organic compounds characterized by the presence of a carbonyl group attached to at least one hydrogen atom, used in a wide range of chemical synthesis processes.