The average household spends 1,460 hours a year in front of the box â four hours a day. And sometimes we watch it without even realising. A TV Licensing Authority survey found people underestimate their TV viewing by up to 20 hours a week. 2,372 hrs sleeping
The CPR compression ratio for infants and children is 30 compressions to 2 breaths. 2 people CPR compression ratio for infants is 15 compressions to 2 breaths. 2 people CPR coâ¦mpression ratio for children is 30 compressions to 2 breaths.
The amount that the mixture is compressed is determined by the compression ratio of the engine. The compression ratio on the average engine is in the range of 8:1 to 10:1. This means that when the piston reaches the top of the cylinder, the air-fuel mixture is squeezed to about one tenth of its original volume.