MEOC Excavation Techniques & Site Management

Question 1

What is benching in excavation?

Accepted Answer

Cutting horizontal steps into trench walls

Answer

Digging straight down walls.

Answer

Filling the trench with concrete.

Answer

Adding steel beams to the site.

Question 2

What is the purpose of trench boxes?

Accepted Answer

To shield workers from soil collapse

Answer

To carry tools.

Answer

To store materials.

Answer

To transport water.

Question 3

Why is soil classification important in excavation?

Accepted Answer

To determine soil stability and choose safe techniques

Answer

To match soil color to machinery.

Answer

To reduce inspection paperwork.

Answer

To schedule breaks.

Question 4

What is the purpose of sloping in excavation?

Accepted Answer

To reduce risk of trench wall collapse

Answer

To build ramps for trucks.

Answer

To increase digging speed.

Answer

To create storage piles.

Question 5

Why should utility lines be located before digging?

Accepted Answer

To avoid damaging underground infrastructure

Answer

To increase excavation time.

Answer

To break old pipes.

Answer

To remove them manually.

Question 6

What does spoil pile refer to?

Accepted Answer

Dirt or material excavated and piled safely

Answer

Waste bins near the site.

Answer

Tool sheds on site.

Answer

Loose rock formations.

Question 7

What helps maintain efficient site management?

Accepted Answer

Maintaining organized workflow and communication

Answer

Letting workers choose tasks randomly.

Answer

Delaying inspections.

Answer

Skipping safety briefings.

Question 8

Why must excavated areas be barricaded or marked?

Accepted Answer

To protect people from falling into the excavation

Answer

To prevent sun exposure.

Answer

To make photography easier.

Answer

To signal lunch break.

Question 9

What is shoring in excavation work?

Accepted Answer

Installing supports to prevent trench cave-ins

Answer

Drilling small holes.

Answer

Using explosives to loosen soil.

Answer

Removing excess water.