ASE G1 Auto Maintenance and Light RepairHeating and Air Conditioning (HVAC)Medium
A vehicle's AC system has been evacuated and is ready for recharging. The manufacturer specifies a charge of 1.5 lbs (0.68 kg) of R-134a. If the technician is using a charging station that measures in ounces, how many ounces of refrigerant should be added?
- A28 ounces
- B24 ounces
- C20 ounces
- D18 ounces
Show answer & explanationAnswer & explanation
Correct answer: B. 24 ounces
To convert pounds to ounces, multiply by 16 (since 1 lb = 16 oz). So, 1.5 lbs * 16 oz/lb = 24 ounces.
Why the other options are wrong
- A. 28 ounces is incorrect (1.5 * 16 = 24).
- C. 20 ounces is incorrect (1.5 * 16 = 24).
- D. 18 ounces is incorrect (1.5 * 16 = 24).
Weight Conversion (lbs to oz)
To convert pounds to ounces, multiply the pound value by 16, as there are 16 ounces in 1 pound.
- 1 pound (lb) = 16 ounces (oz).
- Essential for accurate refrigerant charging.
- Incorrect charge can lead to system damage or poor performance.
Memory trick: Pounds to ounces, multiply by sixteen, for a charge that's keen.