Free Printable FE Quiz

1.

What does active network elements in the circuit do?

a)

a) transfer power to other elements

b)

b) store power

c)

c) absorb and transfer power to other elements

d)

d) absorb power

2.

Independent voltage source is

a)

a) independent of current

b)

b) independent of voltage

c)

c) independent of electrons

d)

d) Both A and B

3.

Which of the following according to the fundamentals of electrical energy is not correct about alternating current?

a)

a) Frequency is zero

b)

b) Magnitude changes with time

c)

c) Can be transported to larger distances with less loss in power

d)

d) Flows in both directions

4.

Which of the following will happen in a transformer when the number of secondary turns is greater than the number of primary turns?

a)

a) The voltage gets stepped up

b)

b) The voltage gets stepped down

c)

c) The power gets stepped up

d)

d) The power gets stepped down

5.

Which of the following according to the fundamentals of electrical engineering is correct about the induced emf in the primary of the transformer?

a)

a) It is the ratio of primary turns to emf induced per turn

b)

b) It is the product of primary turns and emf induced per turn

c)

c) It is the ratio of secondary turns to emf induced per turn

d)

d) It is the product of secondary turns and emf induced per turn

6.

What happens to the capacitor when the capacitor voltage is equal to the source voltage?

a)

a) Oscillations take place

b)

b) The discharging phase of the capacitor is over

c)

c) The capacitor is switched off

d)

d) The capacitor is switched on

7.

In an RLC circuit, the power factor is always

a)

a) Positive

b)

b) Negative

c)

c) Depends on the circuit

d)

d) Zero

8.

When is $\tan\phi$ negative?

a)

a) When inductive reactance is less than capacitive reactance

b)

b) When inductive reactance is greater than capacitive reactance

c)

c) When inductive reactance is equal to capacitive reactance

d)

d) When inductive reactance is zero

9.

$The\ general\ solution\ of\ (𝐷^2−𝑚^2)𝑦=0$ 𝑖𝑠

a)

$a)\ 𝑦=(𝑐1+𝑐2𝑥)𝑒^{mx}$

b)

$b)\ 𝑦=𝑐1𝑠𝑖𝑛\ 𝑚𝑥+𝑐2𝑐𝑜𝑠\ 𝑚𝑥$

c)

$c)\ 𝑦=𝑐1𝑒^{mx}+𝑐2𝑒^{-mx}$

d)

$d)\ 𝑦=(𝑐1+𝑐2𝑥)\ 𝑒^{-mx}$

10.

$\sinh x\ =\frac{4}{3}\ then\ \cosh\ x\ \ =$

a)

$\frac{5}{3}$

b)

$\frac{+}{ }\ \frac{5}{3}$

c)

$\frac{\sqrt[]{7}}{3}$

d)

No solution

11.

$If\ x=\cos\ \frac{\pi}{14}\ +\ i\sin\ \frac{\pi}{14}\ and\ y\ =\cos\ \frac{9\pi}{14}\ +\ i\sin\ \frac{9\pi}{14\ }then\ x^5.y^{15}\ =\$

a)

$e^{i.5\pi}$

b)

$e^{i.15\pi}$

c)

$e^{i.10\pi}$

d)

None of these

12.

$f\left(x,\ y,\ z\right)\ =\ \left(x^2\ +y^2\ -2z^2\right)\left(y^2+z^2\right)\ then\ \frac{\partial f}{\partial x}\ at\ x\ =2,\ y=\ 1\ and\ z=3\ is\$

(a)

13.

The de-Broglie hypothesis is associated with:

a)

wave nature of electrons only

b)

wave nature of α-particle only

c)

wave nature of radiations

d)

wave nature of all material particles

14.

A p-n junction acts as a:

a)

Controlled switch

b)

Bidirectional switch

c)

Unidirectional switch

d)

None of the above

15.

In Youngs experiment, when the distance between slit and screen is doubled, while separation of slit is halved, then fringe width will be:

a)

4 times

b)

1/4

c)

doubled

d)

unchanged

16.

What is Gibbs phase rule for general system?

a)

P = C – 1 – F

b)

P = C + 1 – F

c)

P + F = C – 2

d)

P + F = C + 2

17.

Two equal forces are acting at a point with an angle of 60° between them. If the resultant force is equal to 60√3, what is the magnitude of each force?

a)

30

b)

50

c)

40

d)

60

18.

A 1 kg block is resting on a surface with coefficient of friction 0.1. A force of 0.8 N is applied to the block as shown in figure. The friction force is

a)

0

b)

0.8

c)

0.98

d)

1.2

19.

Which operator has the lowest priority?

a)

_

b)

%

c)

+

d)

||

20.

Identify the correct sequence of steps to run a program

a)

link, load, code, compile and execute

b)

code, compile, link, execute and load

c)

code, compile, link, load and execute

d)

compile, code, link, load and execute

21.

What will be the output of the following code segment?

int x=24, y=39, z=45

z=x+y;

y=z-y;

x=z-y;

printf("\n%d%d%d",x,y,z);

a)

24 39 63

b)

39 24 63

c)

24 39 45

d)

39 24 45

22.

What is the valid range of numbers for int type of data?

a)

0 to 255

b)

-32768 to +32767

c)

-65536 to +65536

d)

No specific range

23.

The size of a String variable is

a)

1 byte

b)

8 bytes

c)

16 bytes

d)

None of these

24.

What is the value of $\int_0^{\infty}e^{-x^2}dx$

a)

$\sqrt[]{\pi}$

b)

$\sqrt[]{\frac{\pi}{2}}$

c)

$\frac{\sqrt[]{\pi}}{2}$

d)

$\frac{\pi}{2}$

25.

$\int_0^2\int_0^x\ e^{\ x}.e^y\ =$

a)

$\frac{1}{2}\left(e\ -\ 1\right)$

b)

$\frac{1}{2}\left(e^2\ -\ 1\right)^2$

c)

$\frac{1}{2}\left(e^2\ -\ e\right)$

d)

$\frac{1}{2}\left(e\ -\ \frac{1}{2}\right)^2$

FE Quiz

Total questions: 25

Worksheet time: 24mins

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