Two technicians are discussing back pressure. technician a says that higher exhaust-system pressure leads to lower manifold vacuum. technician b says that back pressure can be tested with an oxygen sensor, and egr valve, or an air valve. who is correct?

a. technician a
b. both technicians a and b
c. neither technician a nor b
d. technician b

Give an example of a situation in which an individual's pursuit of economic self-interest may not benefit but instead harm the rest of society

The valve seat performs two functions: it provides a seal for the valve in the combustion chamber, and it provides a cool surface to carry heat away from the valve. most valves use a seating angle.

Match each financial concept with its correct situation time value of money store of value personal disposable income consumer credit angela chooses between having $1,000 now, and investing it in a savings account so that she can have $1,050 a year from now. jane has $2,500 monthly to spend after she pays taxes david saves his money for the future so he can live comfortably in retirement lester uses a credit card to purchase a new ipad, as he cannot pay the entire amount now um. all rights reserved. there to search