Free Printable Test 1 EEE

1.

L is Laplace transform operator

a)

True

b)

False

2.

L(e^-at)=

a)

s-a

b)

s+a

c)

1/(s-a)

d)

1/(s+a)

3.

L(1)=

(a)

4.

Laplace transform of a unit impulse function is

a)

S

b)

0

c)

e^-s

d)

1

5.

What is the Laplace Transform for $f\left(t\right)=t^3$ ?

a)

$\frac{1}{s^3}$

b)

$\frac{2}{s^3}$

c)

$\frac{6}{s^4}$

d)

$\frac{3}{s^3}$

6.

The Laplace Transform of 1 is

a)

$\frac{1}{s}$

b)

$\frac{1}{s^3}$

c)

$\frac{1}{s^2}$

d)

$\frac{1}{s+1}$

7.

The Laplace Transform of $\sin\ at\$ is

a)

$\frac{a}{s}$

b)

$\frac{a}{s^2+a^2}$

c)

$\frac{a}{s^2-a^2}$

d)

$\frac{s}{s^2+a^2}$

8.

Laplace transform of sin(3t) is

a)

$\frac{s}{s^2+9}$

b)

$\frac{3}{s^2+9}$

c)

$\frac{1}{3s}$

d)

$\frac{3}{s^2-9}$

9.

Encontrar la Transformada de Laplace de la siguiente función

a)

b)

c)

d)

10.

Encontrar la Transformada de Laplace de la siguiente función

a)

b)

c)

d)

11.

Encontrar la Transformada de Laplace de la siguiente función

a)

b)

c)

d)

12.

ຊື່ອາຈານສອນວິຊາ ການປະກອບແລະວິເຄາະເຂື່ອຊາຍ

(a)

13.

ເບີໂທອາຈານສອນວິຊາ ການປະກອບແລະວິເຄາະເຂື່ອຊາຍ

(a)

14.

ຂໍ້ໃດທີ່ບໍ່ແມ່ນການແປງລາປຣາດສແບບຜົກຜັນ

a)

b)

c)

d)

15.

KVL ຫຍໍ້ມາຈາກຫຍັງ

a)

Kirchhoffs Circuit Laws allow

b)

Kirchhoffs Voltage Law, (KVL).

c)

Kirchhoffs VoItage Law, (KVL).

d)

Kichhoffs Cirrcuit Laws allow

16.

KCL ຫຍໍ້ມາຈາກຫຍັງ

a)

Kirchhoffs Circuit Lows

b)

Kirchoffs Circuit Laws

c)

Kirchhoffs VoItage Low, (KVL).

d)

Kirchhoffs Circuit Law

17.

The value of $\int_{ }^{ }\cos5x\ dx$ =

a)

5 sin5x

b)

-5sin5x

c)

$\frac{\sin5x}{5}$

d)

$-\frac{\sin5x}{5}$

18.

$\frac{\text{d}}{\text{d}x}\left(x^2\right)\ =$

a)

x

b)

2

c)

2x

d)

0

19.

$\int_0^{2\pi}\ x\ \cos nx\ dx\ =$

a)

$\left|x\left(\sin x\right)\left(-\cos x\right)\right|$

b)

$\left|x\left(\frac{\sin nx}{n}\right)-\left(-\frac{\cos nx}{n^2}\right)\right|$

c)

$\left|x\left(\frac{\sin nx}{n}\right)-\left(-\frac{\cos nx}{n^2}\right)\right|_0^{2\pi}\ \ =0$

d)

$\left|x\left(\frac{\sin nx}{n}\right)-\left(-\frac{\cos nx}{n^2}\right)\right|_0^{2\pi}\ =2$

20.

a)

A

b)

B

c)

C

d)

D

21.

The value of $\int_{ }^{ }\cos5x\ dx$ =

a)

5 sin5x

b)

-5sin5x

c)

$\frac{\sin5x}{5}$

d)

$-\frac{\sin5x}{5}$

22.

The value of $\int_0^{\pi}\ \sin3x\ dx$

a)

$\frac{2}{3}$

b)

$-\frac{2}{3}$

c)

0

d)

$\frac{1}{3}$

23.

The Fourier Transform of a function

X\left(t\right)\ is\ X\left(w\right).

what will be the fourier transform of

\frac{\text{d}X\left(t\right)}{\text{d}t}

?

a)

$\frac{X\left(f\right)}{jf}$

b)

$j2\pi fX\left(f\right)$

c)

$\frac{\text{d}X\left(f\right)}{\text{d}t}$

d)

$jfX\left(f\right)$

24.

The value of

e^{-\infty}

is------------------

(a)

25.

Which full name is the right one for the guy of the meme ?

a)

Jean-Joseph Baptiste Fourier

b)

Jean Baptiste Joseph Fourier

c)

Charles-Henry Fourier

d)

Pierre Laplace

26.

How many Fourier's coefficients do we have ?

a)

1

b)

2

c)

3

d)

4

27.

What is the output of an inverter?

a)

DC

b)

AC

28.

a)

b)

c)

d)

29.

a)

b)

c)

d)

30.

a)

b)

c)

d)

31.

If a current of 5 Amperes flows through the conductor. The number of electrons per second will is

a)

1.6 x 10-19

b)

3.12 x 1019

c)

4 x 1019

d)

7.68 x 1020

32.

Kirchhoff's current law is applicable to only

a)

Junction in a network

b)

Closed loops in a network

c)

Electric circuits

d)

Electronic circuits

33.

Equation for this circuit is :

a)

R1R3 = R2Rx

b)

R1R2 = R3Rx

c)

R1Rx = R3R2

d)

R1Rg = RxRg

34.

Calculate R if P=1 kΩ, Q=2.5 kΩ and S=4kΩ

a)

1.6 Ω

b)

0.16 kΩ

c)

16 kΩ

d)

1.6 kΩ

35.

A car battery has an emf of 12V and an internal resistance of 0.005Ω. The terminal voltage when a load current of 100A is drawn is...

a)

11.5V

b)

0.5V

c)

7.0V

d)

11.5A

36.

Sine or Cosine?

a)

y=sinx

b)

y=cosx

37.

What is the amplitude of this function?

a)

2

b)

2π

c)

-2

d)

1

38.

Sine or Cosine?

a)

y=sinx

b)

y=cosx

39.

ω ຫົວໜ່ວຍເຊີງມູມແມ່ນຫຍັງ

a)

rad/s

b)

rad²/s

c)

ohm

d)

volt

40.

X_Lຫາໄດ້ຈາກສູດ

a)

$\frac{1}{2\pi fL}$

b)

$2\pi fC$

c)

$\frac{1}{2\pi fC}$

d)

$2\pi fL$

41.

Z ຫົວໜ່ວຍແມ່ນຫຍັງ

a)

volt

b)

ampere

c)

Ohm

d)

rad/s

42.

ω ມີສູດຄືແນວໃດ

a)

2πr

b)

1/2πr

c)

2πf

d)

1/2πr

43.

In a series circuit current must be

a)

constant for each element

b)

cosine graph in all 3 components

c)

different for each element

44.

Write an equation that solves for the impedance, $Z_{total}$ , of this series circuit.

a)

$Z_{total}=\sqrt{R^2+X^2}$

b)

$Z_{total}=\sqrt{R^2-X^2}$

c)

$Z_{total_{ }}=R^2+X^2$

d)

$Z_{total}=R^2-X^2$

45.

Which of the transposed reactance formulae is incorrect?

a)

b)

c)

d)

46.

The formula to find X_Cis

a)

$\frac{1}{2\pi fC}$

b)

$2\pi fC$

c)

$\frac{1}{2}\pi fC$

d)

$\omega fC$

47.

Impedance is

a)

Z = R + j(X_L - X_C)

b)

Z = R + j(X_L + X_C)

c)

Z = R + jX_L - jX_C

d)

Z = R + jX_L + jX_C

48.

What kind of circuit is this?

a)

series

b)

parallel

49.

this circuit is .....?

a)

open

b)

parallel

c)

closed

d)

The cutest little circuit evah!

50.

Seleccione la formula de la Ley de Ohm

a)

$P=R\times I$

b)

$J=\frac{I}{s}$

c)

$U=R\times I$

d)

$P=I^2\ \times\ R$

e)

$I=\frac{R}{U}$

51.

If you replace the paper clip with a plastic spoon, what happens?

a)

The bulb doesn't light

b)

The bulb is dimmer

c)

The wires get hot

d)

There is no change

52.

this is the symbol for a _____?

a)

switch

b)

light

c)

battery

d)

wires

53.

If the electric circuit is CLOSED, the switch is _______.

a)

ON

b)

OFF

54.

What is a material that resists, or does NOT allow, energy to flow through?

a)

circuit

b)

insulator

c)

series

d)

conductor

55.

a)

Circuit is open

b)

Circuit is closed

c)

circuit has a complete path for electricity to flow

d)

This doesn't have to do with a circuit

56.

The useful power required for driving the motor or lighting the bulb is represented in:

a)

VAR

b)

Volt-Amperes

c)

Watts

Test 1 EEE

Total questions: 56

Worksheet time: 50mins

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