Which Statements Are True Describing the Ziegler-Natta Process

question 33

Multiple Choice

Which statements are true describing the Ziegler-Natta process?
I. the process yields low density polyethylene
II. the process involves radicals
III. the original process used an alkytitanium catalyst
IV. the process yields polyethylene 3 to 10 times stronger than other methods

• A) I, II
• B) II, IV
• C) II, III
• D) III, IV

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Definitions:

MTBF

Mean Time Between Failures, a measure of reliability for a system, indicating the average time between failures.

Standard Deviation

A statistical measure that quantifies the amount of variation or dispersion of a set of data values from their mean.

Preventive Maintenance

Scheduled maintenance activities conducted on equipment before faults occur in order to prevent breakdowns and minimize downtime.

Redundancy

The use of components in parallel to raise reliability.