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MAE 488 Exam 3 questions with correct answers
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MAE 488 Exam 3 questions with correct answers
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MAE 488 Exam 3A static element... - correct answer ✔✔current output depends only on the current input
Non causal element - correct answer ✔✔current output depends only on future input
a linear element is an element that obeys the superposition principle - correct answer ✔✔true
a) t graph t = 0
b) t graph line from 1
c) plot with diagonal line from 0
d) half of a parabola - correct answer ✔✔a) impulse
b) step
c) ramp
d) parabolic
the transfer function is independent of the initial conditions and the input - correct answer ✔✔true
passive elements - correct answer ✔✔resistors, inductors, capacitors
a circuit consists of a voltage source in series with a resistor, capacitor and inductor. how many states are
required for the state space model? - correct answer ✔✔2
In a DC motor, the back emf opposes the applied armature voltage - correct answer ✔✔true
the adjust the speed of an armature controlled DC motor, you adjust the - correct answer ✔✔armature
voltage
, In a DC motor: The ... changes the direction of the armature current so that the force is always in the
same direction. The ... is a coil of wire upon which the force is applied. .... specifying the magnitude and
direction of this force. - correct answer ✔✔1. commutator
2. armature
3. lorentz force law
A 5 input, 4 state and 2 output system. what is the size of the matrix - correct answer ✔✔2x5
A system with 2 inputs, 4 states, and 3 outputs is represented. A matrix:
B matrix:
C matrix:
D matrix: - correct answer ✔✔A: 4x4
B: 4x2
C: 3x4
D: 3x2
Consider the free response of a standard 2nd order stable system. As the imaginary part of the pole
decreases... - correct answer ✔✔the frequency decreases
if all of the stable poles of a system are the same direction from the origin, the poles have the same... -
correct answer ✔✔natural frequency
for a fixed damping ration, the natural frequency has very little effect on the settling time - correct
answer ✔✔false
the natural frequency is always less than or equal to the damped natural frequency - correct answer
✔✔false
damping ratios
a. <0
b. =0
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