Spr09RevQuesExamI

Spr09RevQuesExamI - REVIEW QUESTIONS EE-202 Exam I EE-202,...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
REVIEW QUESTIONS EE-202 Exam I
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
EE-202, Ex 1, page 2 MULTIPLE CHOICE. 1. The mathematical expression of the time function (note that the function continues as an increasing straight line beyond the right edge of the graph) given below is: (a) r ( t ) (b) tu ( t –1) (c) r ( t –1) + u ( t ) (d) ( t –1) u ( t –1) (e) r ( t ) r ( t 1) (f) r ( t ) u ( t (g) Something else 2. Recall that e 2.7 . The Laplace Transform of e t u ( t 2) has the form Ae 2 s s + 1 where A is closest to: (a) 3 (b) 1 (c) 1/3 (d) 1/9 (e) 9 (f) –1/9 (g) Something else 3. The Laplace transform of sin( π 6 t ) δ ( t is A ( s ) e s where A ( s ) is: (a) sin π 6 e s (b) sin π 6 (c) s 2 + ( ) 2 (d) ( s + 2 + ( ) 2 (e) sin 0 ( ) (f) sin π 6 e s s (g) Something else 4. A partial fraction expansion is given by 8 ( s + 2) 2 ( s + 4) = A s + 2 + B ( s + 2) 2 + C s + 4 Then A is: (a) –2 (b) 2 (c) –4 (d) 4 (e) 0 (f) 0.5 (g) Something else
Background image of page 2
EE-202, Ex 1, page 3 5. The inverse Laplace Transform of 3 s 2 + 4 s + 5 s 2 + 2 s + 5 is K δ ( t ) + Ae t cos(2 t ) + Be t sin(2 t ) u ( t ) where B is: (a) 5 (b) 2.5 (c) –2 (d) –4 (e) –5 (f) 2 (g) Something else 6. The Laplace Transform of f ( t ) is given as F ( s ) = 1 e s s . Then, the Laplace Transform of df ( t ) dt with f (0 ) = 3 is: (a) –3– e s (b) –1– e s (c) –4– e s (d) –2– e s (e) 1 e s s 2 3 (e) 1 e s s 2 3 s (g) Something else 7. For the same f ( t ) as Problem 6, the Laplace Transform of tf ( t ) is A + B ( s ) e s s 2 where B ( s ) is: (a) 1 (b) –s (c) s (d) 1 s (e) 1+s (f) –(1+s) (g) Something else 8. The circuit given below has differential equation d dt v C ( t ) + 0.5 v C ( t ) = 0.5 v in ( t ) with v in ( t ) = 10 ( t ) and v C (0 ) = 5 V. Then v C ( t ) = Ae Bt u ( t ) where A is: (a) 20 (b) 15 (c) 10 (d) 5 (e) 0 (f) –10 (g) Something else
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
EE-202, Ex 1, page 4 9. For the circuit given below, the input admittance is K + A s + B where A is: (a) 1 (b) –0.25 (c) –1 (d) –1.25 (e) –0.5 (f) 0.5 (g) Something else 10. The transfer function of the circuit below is: (a) s + 1 2 s + 0.5 (b) s + 1 2 s + 2 (c) 2 s + 0.5 s + 1 (d) 2 s + 2 s + 1 (e) s + 1 2 s + 0.5 (f) 2 s + 2 s + 1 (g) Something else
Background image of page 4
EE-202, Ex 1, page 5 11. The transfer function of the circuit below is: (a) 1 (b) + 1) (c) + + + 2) (d) s s ( s + 2) + ( s + (e) s ( s + 2) s ( s + 2) + ( s + (f) ( s + s ( s + 2) + ( s + (g) Something else 12. For the circuit below, recall that v C ( t ) = 1 C i C ( q ) dq −∞ t . If I C ( s ) = 0.5 s and V C ( s ) = 1 s 2 + 2 s , then v C (0 ) = : (a) 1 (b) 2 (c) –1 (d) –2 (e) 0.5 (f) –0.5 (g) Something else 13. For the circuit below, the values of R (in ) and C (in F) that make the input admittance Y in ( s ) = 4 2 s + 1 + 4 s 2 s + 1 are: (1) R = 1, C = 4 (2) R = 4, C = 0.25 (3) R = 4, C = 4 (4) R = 0.25, C = 0.25 (5) R = 0.5, C = 2 (6) R = 0.25, C = 4 (7) none of above
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
EE-202, Ex 1, page 6 14. The transfer function for the following op amp circuit is: (1) s + 0.5 0.5 s + 1 (2) 0.5 s + 1 s + 0.5 (3) s + 0.5 0.5 s + 1 (4) s + 1 0.5 s + 1 (5) s + 1 0.5 s + 1 (6) –2 (7) none of above 15. In a circuit shown below, the initial conditions are i L (0 ) = 1 amp and v C (0 ) = 2 volt. If i L ( t ) = ae 0.5 t u ( t ) + be dt u ( t ) then a is: (1) 1 (2) 2 (3) 3 (4) 4 (5) –4 (6) –3 (7) –1 16. The Laplace transform of f(t) = 2cos(t + 1) δ (t – 1) + 2cos(t – 1) δ (t + 1) is: (1) 2 e s s s 2 + 1 (2) 2 e s + e s s s 2 + 1 (3) 2cos(2) e s + 2cos(–2) e s (4) e s (5) 2cos(–2) e
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

This document was uploaded on 07/25/2009.

Page1 / 16

Spr09RevQuesExamI - REVIEW QUESTIONS EE-202 Exam I EE-202,...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online