Plumbing level 2 - PP3 - Scientific Principles

What is the SI unit of pressure?

• Newton

• Pascal

• Meter per second

• Liter per second

What is the rate at which an object changes its position, taking into account speed and direction?

• Velocity

• Flow rate

• Acceleration

• Force

What is the gravitational pull value used in calculations?

• 10 N/m2

• 9.81 N/m2

• 10 m/s

• 9.81 m/s

What is the unit for flow rate?

• m/s

• N

• Pa

• l/s or l/m

What is the force per area called?

• Acceleration

• Velocity

• Pressure

• Flow rate

What is the Intensity of Pressure (IoP) if the head height is 6m?

• 58.86 N/m2

• 68.86 N/m2

• 88.48 N/m2

• 78.48 N/m2

What is the head height if the IoP is 78.48 N/m2?

• 6m

• 7m

• 8m

• 9m

At sea level, what is the atmospheric pressure?

• 102 kPa

• 101.3 kPa

• 103 kPa

• 100 kPa

What happens to the flow rate if the pipe diameter is reduced?

• Flow rate stops

• Flow rate decreases

• Flow rate increases

• Flow rate remains the same

What is the resistance of the pipework if you use 5 elbows?

• 3.5m

• 4.5m

• 5.5m

• 2.5m