Question

True or false. before allowing an employee to enter an excavation at least four feet deep it must be tested for oxygen deficiency and toxic fumes.

Answer 1

The answer should be A) True because before u let your employee or just customer or even anybody, u always want to check the temperature, air level, oxygen deficiency and toxic fumes so that when that person comes they don't have a stroke or seizure that can cause harm to both that person and to you cause u are going to be sued since u were responsible for that person, and also file losses/charges, taxes as well will be sent to u for not proper customer care.

Answer 2

That statement is true.

As you go deeper to the ground, there would be less space and pathways for air to come in. This mean that the amount of oxygen on lower part ot the excavation tend to be lesser compared to the upper ground.

The deeper ground would also tend to contain oil and gas that were formed through million years of process. These resources tend to be toxic and dangerous to be close by without wearing protective mask.