1.676m,1.00m
Meter guage tracks are one meter or 39.4 inches apart.Standard guage rails are 4 feet 8 and one half inches apart.Broad guage is 5 feet between the rails.Most USA railroads use standard guage...
Because Pressure gauge measures the the differenceof pressure so it is called pressure gauge not meter.
you stretch your lobes
Gauges are the devices that are used to measure instruments.Eg: plug gauge