As of 2012, NACE reported that mechanical engineers with a master's degree started at an average of $75,700 -- significantly more than the average starting salary of $61,300 reported by mechanical engineers with a bachelor's degree.
How many gallons does a semi truck hold? Quick Answer. Semi truck fuel tanks vary in size, but they hold an average of 125 to 300 gallons of fuel. There is a fuel tank located on each side of the tractor, and fuel is distributed between the two tanks to balance weight.
I'm afraid there is no one answer to your question, since there have been many different variants of the 747. The fuel capacity ranges from 48,445 gallons (183,380 L) in the aâ¦ncient 747-100 model to 64,055 gallons (242,470 L) in the hi-tech 747-800 Intercontinental.