Related Questions

The amount of tetraethyl lead added to improve the octane number of motor gasoline is around __________ c.c per gallon of petrol.
A 3
B 300
C 3000
D 1000
Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes
A Paralysis of muscles & loss of appetite
B Nervous depression
C Gastritis & diarrhea
D All of the above
Tetraethyl lead is added to the petrol to increase its octane number, because its octane number is
A More than 100
B Round about 100
C Between 50 and 100
D Less than 25
A bus uses one gallon of gasoline to travel 15 miles.After a tune-up,the bus travels 15% farther on one gallon. How many gallons of gasoline (to the nearest tenth) will it takes for the bus to travel 150 miles after a tune-up?
A 8.7
B 8.5
C 8.9
D 9
when 6 gallons of gasoline are put into a car, the indicator goes from 1/4 to 5/8 . what is the total capacity of the gasoline tank?
A 12
B 14
C 16
D 18
A car got 33 miles per gallon using gasoline that coast $295 per dollars. Approximatley what was the cost , in dollars, of the gasoline used in driving the car 350 miles?
A $10
B $31
C $40
D $50
Bob just filled his car's gas tank with 20 galions of gasohol , a mixture consisting of 5% ethanol and 95% gasoline. If his car runs best on a mixture consisting of 10% ethanol and 90% gasoline, how many gallons of ethanol must he add into the gas tank for his car to achieve optimum performance?
A 20/19
B 10/9
C 9/10
D 1
Gasoline extracted from natural gas (by compression and cooling) is called the __________ gasoline.
A Polymer
B Unleaded
C Casing head
D Straight run
Which of the following categories of gasoline has the highest lead susceptibility?
A Straight run gasoline
B Platinum reformed gasoline
C Catalytical cracked gasoline
D Polymer gasoline
Glycol is added to aviation gasoline because it
A Reduces evaporation of petrol
B Increases efficiency of petrol
C Prevents freezing of petrol
D Reduces consumption of petrol

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