MEOC Safety Procedures & Hazard Prevention 2

Question 1

When working near an underground utility line, what is the minimum safe hand-digging clearance on each side of the marked line?

Accepted Answer

18 inches

Answer

Most state regulations and best practices require hand-digging within 18 inches on each side of a marked underground utility.

Question 2

A mini excavator is operating on a slope and begins to feel unstable. The FIRST action the operator should take is:

Accepted Answer

Lower the bucket to the ground to stabilize

Answer

Lowering the bucket to ground contact lowers the center of gravity and provides immediate stabilization.

Question 3

Which condition makes an excavation MOST susceptible to cave-in without warning?

Accepted Answer

Sandy or gravelly soil with no cohesion

Answer

Sandy and gravelly soils have no cohesion and can collapse suddenly under their own weight.

Question 4

Before starting a mini excavator at the beginning of a shift, the operator should:

Accepted Answer

Perform a walk-around inspection before starting the engine

Answer

A walk-around inspection before engine start catches visible hazards such as leaks, damage, or obstructions.

Question 5

What does a BLUE utility locate mark indicate?

Accepted Answer

Potable water

Answer

Blue is the APWA uniform color code for potable water lines.

(MEOC) Mini Excavator Operator Certification Practice Test