9289 unit 303 pp1

What does "SI" in SI units stand for?

• Standard International

• System International

• Scientific International

• Simple International

How many base SI units are there?

• Five

• Six

• Seven

• Eight

Which of the following is the base unit for mass?

• Metre

• Kilogram

• Second

• Ampere

What is the base unit for electric current?

• Kelvin

• Candela

• Ampere

• Mole

Which base unit is primarily used in chemistry?

• Metre

• Mole

• Candela

• Second

What is the base unit for temperature?

• Kelvin

• Metre

• Second

• Kilogram

Which of the following is an example of using units of measurement in plumbing?

• Estimating the cost of materials.

• Taking installation measurements from a drawing.

• Hiring new staff.

• Scheduling maintenance tasks.

Why is it important to take temperatures or flow rates during commissioning?

• To ensure the system is functioning correctly.

• To calculate the total cost of installation.

• To determine the color of the pipes.

• To decide on the brand of materials to use.

What is the standard unit for length in the SI system?

• Millimeters

• Centimeters

• Meters

• Kilometers

How many millimeters are there in one meter?

• 100 mm

• 500 mm

• 1,000 mm

• 10,000 mm