A Volatile Organic Compound That Is Widely Used as a Dry-Cleaning

question 91

Multiple Choice

A volatile organic compound that is widely used as a dry-cleaning solvent and degreasing compound and is now found in trace amounts in groundwater is

• A)methane.
• B)benzene.
• C)formic acid.
• D)trichloroethylene.

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Definitions:

Automatically Adjust

A process where a system or device changes parameters or settings on its own without human intervention, often based on feedback or environmental conditions.

Lockstrap

The removable locking tang that holds the clutch ring in position; it has to be removed and the clutch ring rotated to make a clutch adjustment.

Center Plate

A key component in the articulation systems of rail vehicles or trailers, serving as a pivot point and support between the bogie and the vehicle body.

Drive Pins

Drive pins are fasteners used to secure two parts together, typically installed by driving the pin into a pre-drilled hole to create a secure connection.