WCS 1107-3 - Knowledge Assessment

Which of the following sentences below is/are CORRECT?

• Low pressure pipeline is bigger with smaller valve

• Low pressure pipeline is smaller with smaller valve

• High pressure pipeline is bigger with bigger valve

• High pressure pipeline is smaller with bigger valve

What is the suitable working pressure for low pressure side?

• 12-20 bar

• 1-3 bar

• 12-20 psi

• 1-3 psi

• 5-7 bar

What is the suitable working pressure for high pressure side?

• 12-20 bar

• 1-3 bar

• 12-20 psi

• 1-3 psi

• 5-7 bar

What is the suitable pressure at rest for A/C system?

• 12-20 bar

• 1-3 bar

• 
  12-20 psi

• 
  1-3 psi

• 5-7 bar

What is the first generation refrigerant used on vehicle?

What is the second generation refrigerant used on vehicle?

What is the third generation refrigerant used on vehicle?

What does "CFC" stand for?

What does "HFC" stand for?

What does "HFO" stand for?