An AC system has many components: compressor, condenser, receiver dryer, evaporator, and hoses. The compressor, the âheartâ of the carâs air conditioning system works like a pump taking refrigerant, (R-12 in older cars, R-134a in 1995 and newer cars) and pressurizing it, passing it along to the evaporator. The AC compressor has several moving parts (including pistons and valves).
Quick Answer. According to WebMD, a normal blood pressure is lower than 120/80. This means that the systolic number is 120 or lower, and the diastolic number is 80 or lower. The systolic number measures artery pressure when the heart contracts. The diastolic number measures artery pressure between heartbeats.
What the normal glucose reading should be? How to keep my blood sugar levels at a healthy range? It is true that when you know your blood sugar levels will help you get better control of diabetes. There are several tests you may undergo to check your blood glucose level if itâs in normal range or not. Basically, the normal blood sugar reading should be as following (according to ADA - American Diabetes Association for adult): Blood glucose before meal: 70 â 130 mg/dl. Blood glucose 2 hours after meal: <180 mg/dl.