Please help solve these multiple choice problems You have a sport utility car th

ID: 960447 • Letter: P

Question

Please help solve these multiple choice problems

You have a sport utility car thet gives 20 miles/gallon. You are trading your car for a hybrid car thet gives you 50 miles/gallon. If the distance you travel each year is 20,000 miles and the average price of gasoline is $2.40/gallon, how much do you save annually in fuel costs? (A) $960; (B) $1,440; (C) $2,400; (D) $2,500; (E) cannot tell from the given data. Which of the following emissions cannot be controlled by catalytic converters?(A) carbon monoxide; (B) carbon dioxide; (C) nitric oxide; (D) hydrocarbons; (E) none of the above. Nitric oxides are produced mainly as a result of: (A) incomplete combustion; (B) quenching by cold surfaces; (C) the reaction of nitrogen and oxygen in the air at high temperatures; (D) burning a very rich mixture; (E) all of the above.

Explanation / Answer

Answer:

You have a sport utility car that gives 20 miles/gallon.

You are trading your car for a hybrid car that gives you 50 miles/gallon.

If the distance you travel each year is 20.000 miles and the average price of gasoline is $2.40/gallon.

Sport utility car

Hybrid car

Gallons Spend

(20,000miles/year)/(20 miles/gallon)

=1,000 gallon/year

(20,000miles/year)/(50 miles/gallon)

=400 gallon/year

Cost

($2.40/gallon)*(1,000gallon/year)

=$2400

($2.40/gallon)*(400gallon/year)

=$960

Amount of money saved: $2,400-$960=$1,440 Option (B)

Nitric oxide.

Option (D)

The reaction of nitrogen and oxygen in the air at high temperatures.

Option (C)