below 50%

between 50 and 85%

between 85 and 95%

between 95 and 100%

2000 to 4000 volts

4000 to 6000 volts

6000 to 10 000 volts

10 000 to 12 000 volts

absorb excess neutrons

control fuel consumption

control temperature

all of these

increase

decrease

remain same

none of these

compression ignition

spark ignition

fast engine

none of these