SC Water and Sewer Plants Practice Questions - South Carolina Water and Sewer Plants Contractor Examination Exam - SC Water and Sewer Plants Practice Questions - South Carolina Water and Sewer Plants Contractor Examination Exam

Question 1

Under OSHA 29 CFR 1926 Subpart AA, which three conditions must all be present for a space to be a confined space?

It is below grade, contains a liquid, and requires a permit It is large enough to enter and work, has limited or restricted entry or exit, and is not designed for continuous occupancy It has a hazardous atmosphere, an engulfment hazard, and inward-sloping walls It is a tank or wet well, is deeper than 4 feet, and requires forced-air ventilation

Correct Answer:

It is large enough to enter and work, has limited or restricted entry or exit, and is not designed for continuous occupancy

Question 2

Per OSHA 1926.651, excavated material and other equipment that could fall or roll into an excavation must be kept at least how far from the edge unless a retaining device is used?

12 inches (1 foot) 2 feet 4 feet 6 feet

Correct Answer:

2 feet

Question 3

OSHA 1926.651 requires a stairway, ladder, ramp, or other safe means of egress in trench excavations that are 4 feet or more in depth so that employees travel no more than how far laterally to reach it?

15 feet 25 feet 50 feet 100 feet

Correct Answer:

25 feet

Question 4

Under OSHA 1926.652, employees in an excavation generally must be protected from cave-ins by a protective system when the excavation is how deep, unless it is entirely in stable rock?

2 feet or greater 4 feet or greater 5 feet or greater 6 feet or greater

Correct Answer:

5 feet or greater

Question 5

When testing the atmosphere of a permit-required confined space under OSHA 1926 Subpart AA, what is the required order of tests with a calibrated direct-reading instrument?

Toxic gases, then oxygen, then flammable gases and vapors Flammable gases and vapors, then toxic gases, then oxygen Oxygen first, then flammable gases and vapors, then toxic gases and vapors Oxygen and toxics simultaneously, with flammables tested only if the space is classified

Correct Answer:

Oxygen first, then flammable gases and vapors, then toxic gases and vapors

Question 1 of 100

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About this Exam

Prepare with the SC Water and Sewer Plants Practice Questions - South Carolina Water and Sewer Plants Contractor Examination Exam practice quiz. This question bank includes 100 questions covering plant, dipra, ductile, iron, and concrete. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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SC Water and Sewer Plants Practice Questions - South Carolina Water and Sewer Plants Contractor Examination Exam

This practice set contains 100 questions from the matching question bank and focuses on plant, dipra, ductile, iron, and concrete. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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SC Water and Sewer Plants Practice Questions - South Carolina Water and Sewer Plants Contractor Examination Exam

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