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Multi Split AC and Car Air conditioning
69

Multi Split AC and Car Air conditioning MCQ with Answers

69) Which causes the clogged orifice in TEV of car AC system?

Nitrogen

Oxygen

Moisture

Non condensable gases

Answer is:

Moisture

Multi Split AC and Car Air conditioning MCQ with Answers

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Related Multi Split AC and Car Air conditioning MCQ with Answers

70) What is the effect of longer suction and liquid piping in AC?

No pressure rise

More pressure drop

Less pressure drop

Medium pressure rise

Answer is:

More pressure drop

71) What is the effect of operating the compressor under 5 of Hg vacuum during pump down process?

Pumps oil to condenser

Prevent motor damage in dome

Prevent leakage in service valve

Prevent piston damage

Answer is:

Pumps oil to condenser

72) What is ensured before mounting condenser in car AC?

Accessibility for future service

Condenser top line to TEV inlet

Condenser in line with car radiator

Condenser bottom line to discharge line

Answer is:

Accessibility for future service

73) Why CFC 12 system is replaced by HFC 134a system in car AC?

Increase ODP

Increase GWP

GWP becomes zero

ODP becomes zero

Answer is:

ODP becomes zero

Multi Split AC and Car Air conditioning MCQ with Answers

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