Related Questions

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 car goes 15 km on a gallon of octane when it is driven at 50 km/h. When the car is driven at 60 km/h, it only goes 80% as far. How many gallons of octane are needed to travel 200 km if half the distance is traveled at 50 km/h and the rest 60 km/h?
A 15.00
B 16.67
C 10.60
D 14.00
A car goes 15 miles on a gallon of octane when it is driven at 50 miles per hour. When the car is driven at 60 miles per hour, it only goes 80% as far. How many gallons of octane is needed to travel 200 miles if half the distance is traveled at 50 miles per hour and the rest at 60 miles per hour?
A 13.33
B 16.67
C 10.6
D 15
Which of the following gasolines (unleaded) has the least octane number?
A Catalytically cracked gasoline
B Straight run gasoline
C Catalytically reformed gasoline
D Polymer gasoline
The compound that has the least value for octane number is :
A 2-methyl heptane
B Iso-octane
C 2,2-dimethyl hexane
D N-heptane
By higher octane number of spark ignition fuel, it is meant that the fuel has
A Higher heating value
B Higher flash point
C Lower volatility
D Longer ignition delay
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
The octane number of zero is assigned to
A 2-methyl octane
B n-heptane
C iso-octane
D 3-methyl octane
Octane number of gasoline produced by two stage fluidised catalytic cracking process is
A 80
B 87
C 92
D 97
Octane number of n-heptane is assumed to be
A 100
B 0
C 70
D ∞

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