Activity D on a CPM Network Has Predecessors B and C,and

question 79

Multiple Choice

Activity D on a CPM network has predecessors B and C,and has successor F.D has duration 6.B's earliest finish is 18,while C's is 20.F's late start is 26.Which of the following is definitely true?

• A)B is a critical activity.
• B)C is completed before B.
• C)D has no slack but is not critical.
• D)D is critical,and has zero slack.
• E)F is critical,and has zero slack.

Understand experimental design components, including control and experimental groups.

Identify and evaluate the validity of scientific claims and differentiate between science and pseudoscience.

Understand the use of meta-analysis in research.

Recognize issues in drawing causal inferences from correlations.

---

Definitions:

Fixed Calipers

Brake calipers that are mounted in a stationary position with pistons arranged on opposing sides of the rotor, applying brake pressure evenly.

Drum Brake Micrometer

A tool used to measure brake drum diameter and to check for out-of-round.

Out-of-round

A condition where a component, such as a rotor or drum, is not perfectly circular, leading to uneven wear or vibration.

Nonfloating Drum

A type of drum in machinery or equipment that is fixed in place and does not move or float axially under operation.