8202L3SANPPT1Q1

System III soil stack system is based on which country's practice?

• French practice

• UK practice

• German practice

• US practice

How many types of sanitation system are there in the UK according to the document?

• Two

• Three

• Four

• Five

Which of the following is NOT a type of sanitation system listed in the UK?

• Primary ventilated stack system

• Secondary ventilated stack system

• Tertiary ventilated stack system

• Stub stack

What is the required gradient for the discharge pipe in a primary ventilated stack system according to the guidelines laid down in BS EN 12056?

• 2.5° per metre

• 5° per metre

• 10° per metre

• 15° per metre

In a primary ventilated stack system, how should all sanitary appliances be arranged in relation to the discharge stack?

• Separately from the discharge stack

• Directly above the discharge stack

• Closely grouped to the discharge stack

• At a minimum distance of 50 cm from the discharge stack

According to the image, what is the minimum diameter for a waste pipe valve connected to a bidet in a primary ventilated stack system?

• 32 mm

• 40 mm

• 50 mm

• 75 mm

What is the minimum diameter for a waste pipe valve connected to a washing machine (or dishwasher) in the system depicted in the image?

• 32 mm

• 40 mm

• 50 mm

• 75 mm

What type of bends should be at the bottom of a discharge stack to prevent compression?

• 2 x 45° bends

• Long radius bend

• Knuckle bends

• Straight bends

What should be the minimum radius of a long radius bend at the base of a vertical discharge stack?

• Equal to the diameter of the pipe

• Half the diameter of the pipe

• Twice the diameter of the pipe

• Thrice the diameter of the pipe

What is the maximum distance from appliances to the soil stack for a 32mm waste pipe according to the image?

• 1.7m

• 3.0m

• 4.0m

• 6.0m