engineering recuitment UKPSC Polytechnic Lecturer Mock Test 2024 Refrigeration and Air Conditioning Refrigeration Cycles and Devices
With respect to the aircraft refrigeration system consider the following statements:
1. In simple system the compressed air after cooling passes from the turbine.
2. In the regenerative system both the heat exchangers require the ram air for cooling the air.
3. In the bootstrap system the expansion turbine drives a fan.
Select the incorrect statements using the code below1
1, 2 and 3
2
1 and 2
3
2 and 3
4
1 and 3