health and safety ppt 10

Why is it important for plumbers to understand the planning and working practices of trenches and excavations, even if they do not frequently perform this work?

• To ensure safety and proper installation when required

• To increase the cost of construction projects

• To avoid working with other trades

• To specialize only in above ground plumbing

Which of the following tasks might require a plumber to work below ground in an excavation? Select all that apply.

• Install below ground drainage

• Maintain or repair existing buried cables or pipework

• Install new MDPE cold water supplies

• Paint exterior walls

What are the main dangers associated with working in trenches on construction sites?

• Wall collapse and falling objects

• Electrical shock and fire

• Noise pollution and dust

• Slippery surfaces and poor lighting

Why is it important for trench work to be planned, managed, and supervised?

• To minimize the risk of wall collapse and falling objects

• To increase the speed of construction

• To reduce the cost of materials

• To avoid using safety equipment

What is the primary reason for providing temporary support in excavations?

• To prevent the collapse of excavations.

• To speed up the excavation process.

• To reduce the cost of materials.

• To improve the appearance of the site.

Which of the following is required for any excavation deeper than 1.2 meters?

• It must be supported.

• It must be filled with water.

• It must be painted.

• It must be covered with grass.

Why is it important to assess the ground type before commencing trench work?

• To determine the stability and safety of the excavation.

• To choose the color of the trench.

• To decide the number of workers needed.

• To estimate the cost of the project.

Which of the following is prohibited in trench and excavation sites?

• LPG

• Water

• Sand

• Wood

What is the purpose of storing soil away from the edge of a trench?

• To prevent soil from falling back into the trench and causing collapse.

• To make the trench look neat.

• To allow vehicles to pass easily.

• To keep the soil dry.

Which safety measure ensures that workers can escape quickly in case of an emergency in a trench?

• Emergency exit ladder

• Warning notices

• Vehicle stops

• Ground assessment