Related Questions

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
A car uses 1 liter of petrol to travel 17 miles. After a tune-up, the car travels 17% farther on one liters. How many liters ( best approximation ) of petrol will it take for the car to travel 170 miles after a tune-up ?
A 8.1
B 7.9
C 9.3
D 9.1
The bandwidth of a resonant filter is determined by the quality factor (Q) of the circuit and the resonant frequency.
A True
B False
In a parallel LC circuit, if the signal frequency is decreased below the resonant frequency, then ___________
A XL decreases and XC increases
B XL increases and XC decreases
C Line current becomes minimum
D None of the above
In a parallel LC circuit, if the input signal frequency is increased above resonant frequency then ___________
A XL increases and XC decreases
B XL decreases and XC increases
C Both XL and XC increase
D Both XL and XC decrease
If the resistance in parallel with a parallel resonant circuit is reduced, the bandwidth
A Disappears
B Becomes sharper
C Increases
D Decreases
When a parallel RLC circuit is operating at its resonant frequency:
A capacitive reactance is greater than the inductive reactance
B inductive reactance is greater than the capacitive reactance
C inductive reactance is equal to the capacitive reactance
D the difference between inductive and capacitive reactance is equal to the resistance
E None of the above
For frequencies above the resonant frequency, a parallel LC circuit behaves as a ___________ load
A Capacitive
B Resistive
C Inductive
D None of the above
For frequencies below the resonant frequency , a parallel LC circuit behaves as a ___________ load
A Inductive
B Resistive
C Capacitive
D None of the above
When operating above its resonant frequency, a parallel RLC circuit has the characteristics of a:
A parallel RL circuit
B parallel RC circuit
C parallel RLC circuit operated above its resonant frequency
D purely resistive circuit
E None of the above

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