Related Questions

A car averages 25 miles per gallon of gasoline when driven in the city and 40 miles per gallon when driven on the highway. According to these rates, which of the following is closest to the number of miles per gallon that the car averages when it is driven 10 miles in the city and then 50 miles on the highway?
A 64
B 36
C 12
D 29
A car averages 25 miles per gallon of gasoline when driven in the city and 40 miles per gallon when driven on the highway. According to these rates, which of the following is closest to the number of miles per gallon that the car average when it is driven 10 miles in the city and then 60 miles on the highway?
A 64
B 36
C 12
D 29
One D.C. motor drives another D.C. motor. The second D.C. motor when excited and driven
A Runs as a generator
B Does not run as a generator
C Also runs as a motor comes to stop after sometime
D None of these
For starting a D.C. motor a starter is required because
A It limits the speed of the motor
B It limits the starting current to a safe value
C It starts the motor
D None of the above
The coils of D.C. motor starter are wound with wire of
A Copper
B Kanthal
C Manganin
D Nichrome
In a manual shunt motor starter
A Over load relay is connected in series and no volt relay in parallel with the load
B Over load relay is connected in parallel and no volt relay in series with the load
C Over load relay and no volt relay are both connected in series with the load
D Over load relay and no volt relay are both connected in parallel with the load
It is advisable to avoid line starting of induction motor and use starter because
A It will run in reverse direction
B It will pick up very high speed and may go out of step
C Motor takes five to seven times its full load current
D Starting torque is very high
In a star-delta starter of an induction motor
A Resistance is inserted in the stator
B Reduced voltage is applied to the stator
C Resistance is inserted in the rotor
D Applied voltage per stator phase is 57.7% of the line voltage
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

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