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ECT - PE2

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

Which of the following are best conductors?

a)

Gold, copper, germanium

b)

Gold, copper, silicon

c)

Gold, copper, aluminum

d)

Gold, copper, glass

2.

What is the reciprocal of capacitance?

a)

Elastance

b)

Daraf

c)

Permeance

d)

Conductance

3.

How does current flowing through the body cause a health hazard?

a)

By heating tissue

b)

It disrupts the electrical functions of cells

c)

It causes involuntary muscle contractions

d)

All of these choices are correct

4.

What is the amount of change, measured in (dB) of a power increase from 20 watts to 200 watts?

a)

10

b)

12

c)

18

d)

28

5.

What is the nominal voltage of a fully charged nickel-cadmium cell?

a)

1 V

b)

1.2 V

c)

1.5 V

d)

2.2 V

6.

What must you do when powering your house from an emergency generator?

a)

Disconnect the incoming utility power feed

b)

Insure that the generator is not grounded

c)

Insure that all lightning grounds are disconnected

d)

All of these choices are correct

7.

Electrical : Current and Magnetic : ______

a)

Flux

b)

Flux density

c)

Reluctance

d)

Magnetomotive force

8.

What is the cgs unit of magnetic field intensity?

a)

Maxwell

b)

Weber

c)

Oersted

d)

Tesla

9.

Calculate the surface area in circular mil of a wire if its diameter is 0.005 inches.

a)

25 cmil

b)

78.5 cmil

c)

5 cmil

d)

625 cmil

10.

The resistors 1, 2, and 3 ohms are connected in DELTA. In its 'Y' equivalent connection, what is the value opposite to 1 ohm?

a)

0.5Ω

b)

11Ω

c)

1.83Ω

d)

1Ω

11.

In parallel RC circuits, which of the following is true?

a)

VS and VC are in phase

b)

IC leads VC by 90°

c)

Itot and VR are in phase

d)

IC lags IR by 90°

12.

What is the energy gap of germanium in eV

a)

0.36

b)

0.67

c)

1.1

d)

1.43

13.

It occurs when a conduction electron loses energy and falls back to a hole.

a)

Recombination

b)

Doping

c)

Radiation

d)

Conduction

14.

A ceramic capacitor has coded value of 203. What is the value of its capacitance?

a)

203 pF

b)

20,000 nF

c)

0.02 uF

d)

20 mF

15.

Find the node voltage VA.

a)

6V

b)

12V

c)

4.25V

d)

3V

16.

Output is HIGH only when all the inputs are HIGH.

a)

OR

b)

AND

c)

NOR

d)

NAND

17.

Which is the DIAC?

a)

b)

c)

d)

18.

Convert the binary number 1001.0010 to decimal.

a)

9.25

b)

9.5

c)

90.125

d)

9.125

19.

The logic gate that will have HIGH or "1" as its output when any one of its inputs is HIGH is a(n):

a)

OR gate

b)

AND gate

c)

NOR gate

d)

NOT gate

20.

What process is used to remove the magnetic flux from metals

a)

Demagnetizing

b)

De-energizing

c)

Decoupling

d)

Degaussing

21.

Determine the value and tolerance of a resistor having a colour coding of: blue-grey orange-red.

a)

68 kΩ±1%

b)

68 kΩ±2%

c)

6.8 kΩ±1%

d)

6.8 kΩ±2%

22.

Determine the resistance of 6M8M code.

a)

68MΩ±10%

b)

6.8MΩ±10%

c)

68MΩ±20%

d)

6.8MΩ±20%

23.

Which is an iron dust cored transformer?

a)

A

b)

B

c)

C

d)

D

24.

What is a diversity scheme that uses two (2) separate antennas and receivers for each single transmitter?

a)

frequency diversity

b)

space diversity

c)

angle diversity

d)

quadrature diversity

25.

In what major RF band is ground wave basically applied?

a)

MF

b)

HF

c)

VHF

d)

UHF

26.

Mixers are also called as _____.

a)

Oscillator

b)

Demodulator

c)

first detector

d)

LO

27.

A vertically mounted transmission line is LEAST affected by which of the following antenna radiation patterns?

a)

Vertically polarized

b)

Spherically polarized

c)

Horizontally polarized

d)

Elliptically polarized

28.

What is the aspect ratio of HDTV?

a)

4:3

b)

3:4

c)

9:16

d)

16:9

29.

What does SDTV stands for?

a)

Standard Definition Television

b)

System Definition Television

c)

Standard Development Television

d)

System Development Television

30.

Which mode of voice communication is most commonly used on the high frequency amateur bands?

a)

Frequency modulation

b)

Double sidebands

c)

Single sideband

d)

Phase modulation

31.

In transmitter circuit, what is in-between of frequency multiplier and antenna?

a)

Power amplifier

b)

Oscillator

c)

Mixer

d)

IF amplifier

32.

Frequencies that encompass the 300- to 3000MHz range are under which of the following segments?

a)

high frequency

b)

very high frequency

c)

ultra high frequency

d)

microwave

33.

Which is not a web browser?

a)

Bing

b)

Firefox

c)

Opera

d)

Safari

34.

Which is not a search engine?

a)

Yahoo

b)

Google

c)

Chrome

d)

Bing

35.

Communication from keyboard to PC is

a)

Simplex

b)

Duplex

c)

Half duplex

d)

Full duplex

36.

Simplify: (12a)^1/2 + 4(3a)^1/2 - 2(3a)^1/2 - (27a)^1/2

a)

(3a)^1/2

b)

a^1/2

c)

(-2a)^1/2

d)

(1/2a)^1/2

37.

Calculate the area of an equilateral triangle whose sides equal to 3cm.

a)

2.9 cm^2

b)

3.9 cm^2

c)

4.9 cm^2

d)

5.9 cm^2

38.

Expand the term (x+y)^20 and determine its 12th term.

a)

125970x9y11125970x^9y^{11}

b)

167690x9y11167690x^9y^{11}

c)

169760x9y11169760x^9y^{11}

d)

167960x9y11167960x^9y^{11}

39.

A 4 inches cube is filled with water and 4 marbles with radius of 1 inch each. What is the volume of water inside the cube in cubic inches?

a)

51.43

b)

64

c)

16π/3

d)

36.77

40.

Log 4 (base 5) + log 5 (base 6) + log 6 (base 7) =

a)

1.68

b)

2.68

c)

3.68

d)

4.68

41.

Divide x^3+2x^2-x-2 by x+2

a)

x^2+1

b)

x^2-1

c)

x^2+2

d)

x^2-2

42.

Simplify (sin 0° + sin 1° + sin 2° +.....+sin 90°) / (cos 0° + cos 1° + cos 2° +....+ cos 90°)

a)

0

b)

1

c)

90

d)

Infinity

43.

Article III of RA9292:

a)

Professional Regulatory Board

b)

Examination, Registration and Licensure

c)

General Provisions

d)

Practice of profession

44.

Section 30 of RA9292

a)

Code of Ethics and Code of Technical Standards of Practice

b)

Practice of the Profession

c)

Prohibitions and Limitations on the Practice of ECE and ECT

d)

Seal of the PECE

45.

What is the effectivity date of Electronics Engineering law of 2004?

a)

April 17, 2004

b)

April 27, 2004

c)

May 17, 2004

d)

May 27, 2004

46.

Maximum continuous years of service of the board member?

a)

3

b)

6

c)

9

d)

10

47.

Rules and regulations requiring the Services of Duly Registered Electronics and Communications Engineer in the Planning and Designing, Installation or Construction, Operation and Maintenance of Radio Stations, and in the Manufacture and/or Modification of Radio Communications Equipment.

a)

DO 88

b)

DO 6

c)

DO 456

d)

DO 11

48.

CPD law (Continuing Professional Development)

a)

RA10912

b)

RA10921

c)

RA19012

d)

RA10192

49.

CPD Law has ____ sections.

a)

18

b)

28

c)

19

d)

29

50.

Sec 33 of RA9292.

a)

Foreign reciprocity

b)

General appropriation

c)

Penal provision

d)

Categories of practice

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