Correct Answer - Option 1 : Torsional vibration
ISO 3046 consists of the following parts, under the general title Reciprocating internal combustion engines-Performance:
Part 1: Declarations of power, fuel and lubricating oil consumptions and test methods — Additional requirements
Part 2: Test methods
Part 3: Test measurements
Part 4: Speed governing
Part 5: Torsional vibrations
Part 6: Over speed protection
Part 7: Codes for engine power