Question

the manure pit has been emptied and ted now has to enter the manure pit to perform some maintenance work. he is hooked up to a lifeline and his colleague sam is outside the pit ready to assist should a rescue become necessary. do you notice any issues in this scenario? select the best option the pit is empty so there is no need for additional precautions ted is wearing a lifeline so there is no need for additional precautions sam should be wearing a self - contained breathing apparatus ted should be wearing a self - contained breathing apparatus if you need to review this content, it can be found in the agricultural confined space hazards module of the agricultural confined spaces topic

Explanation:

Manure pits can have residual gases like methane, hydrogen - sulfide which are hazardous. Even if emptied and with a lifeline, Ted needs protection. A self - contained breathing apparatus can protect against these harmful gases. Sam is outside and doesn't necessarily need one at this moment.

Answer:

Ted should be wearing a self - contained breathing apparatus