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WorksheetsFinal Examination
Total questions: 50
Worksheet time: 42mins
A Memorandum Circular released by the National Telecommunications Commission on Multiple Gigabit Wireless Systems (MGWS) in frequency around 60 GHz.
MC 01-01-2016
MC 04-06-2016
MC 03-06-2016
MC 03-08-2012
The Book 3 of the Philippine Electronics Code is called
FIRE DETECTION AND ALARM SYSTEM
CABLE TELEVISION SYSTEM
TELECOMMUNICATIONS FACILITIES SYSTEM
DISTRIBUTED ANTENNA SYSTEM
CMTS stands for:
Cellular Mobile Telephone System
Cellular Mobile Telephone Service
Cellular Mobile Telecommunications Service
Cellular Mobile Telecommunications System
A station whereby sound and video signals are received directly from a satellite.
TVRO Station
VSAT Station
FSS Station
DBS Station
An act to prohibit and penalize wire tapping and other related violations of the privacy of communication and for other purposes.
RA 3846
RA 4200
RA 7925
RA 6789
The operation and maintenance of the unmanned radio stations shall be under the direct supervision of a:
Registered ECT
Registered ECE
Class A Amateur Radio Operator
First Class Radiotelephone operator
News shall be part of a station's daily programming. No less than _________ of daily programming should be devoted to news.
15 minutes
20 minutes
45 minutes
30 minutes
Which of the following radio station's typical emissions symbols that means Television?
F3
F4
F6
F5
Two angles of a triangle each measure 64°. What is the measure of the third angle of the triangle?
32°
58°
64°
52°
Log (QR) is equal to
R log Q
Log Q + log R
Log Q + R
Log Q - R
15 million in standard form is equal to
1.5 × 106
1.5 × 106
1.5 × 107
15 × 105
Statement written as value of x is less than 50 is represented as
50 < x
50 > x
X < 50
> 50
An arrangement of n objects according to some definite order is called
Factorial
Permutation
Combination
Ordered arrangement
21/24 = N/56 ; Find the value of N.
49 1/2
49
49 2/3
49 1/4
In how many ways can 5 persons be seated at a round table?
24
120
720
12
100 eggs are bought at the rate of P350 and sold at the rate of P48 per dozen. The percentage of profit or loss is:
14 2/7% loss
15% loss
15% gain
14 2/7% gain
The Official Seal/Logo of the Board is consist of two concentric circles, with the inner circle measuring ____ in diameter
28 mm
38 mm
48 mm
32 mm
Which of the following is not the engineering and technician category covered by RA 9292?
PECE
EE
ECT
ECE
What are the three-terminal of bipolar transistors?
Source, Emitter and Collector
Base, Emitter and Gate
Drain, Gate and Source
Base, Emitter and Collector
What frequency range is referred to as HF?
300 to 3000 MHz
30 to 300 MHz
3 to 30 MHz
300 to 3000 kHz
The conditions for sinusoidal oscillation from an amplifier are called:
The loop-gain criteria
The Hartley criteria
The Bode criteria
The Barkhausen criteria
The binary number 1001101 represents which decimal number?
56
68
77
34
Faraday's laws of electromagnetic induction are related to
The current flowing in a conductor
The e.m.f. of a chemical cell.
The strength of a magnetic field.
The e.m.f. of a generator.
In a personal computer, the internal mass-storage medium is nearly always
None of the choices
A CD (compact disc) in some form
A tape drive
A diskette drive
One megabyte is the same amount of data as
1024 bytes
1024 KB
1/1024 KB
1024 GB
A wire can be coiled around a magnetic compass to make
A dc galvanometer
A dc wattmeter
An ac wattmeter
An ac voltmeter
With a RAM chip,
It is more difficult to read data from the device than to write data into it
It is difficult to read data from the device, and equally difficult to write data into it
It is easier to read data from the device than to write data into it
It is easy to read data from the device, and just as easy to write data into it
What logical operation does a NAND gate perform?
It produces logic 0 at its output only when all inputs are logic 1.
It produces logic 0 at its output only when all inputs are logic 0.
It produces logic 1 at its output only when all inputs are logic 1.
It produces logic 0 at its output if some but not all inputs are logic 1.
Admittance is
A measure of the ease with which a circuit passes ac
The reciprocal of resistance
The reciprocal of reactance
A measure of the opposition a circuit offers to ac
How many watts of electrical power are used by a 12 VDC light bulb that draws 0.2 amperes?
60 watts
2.4 watts
24 watts
6 watts
What is the first amateur radio satellite?
Echo 1
OSCAR 1
Telstar 1
Sputnik 1
During electrolysis, anions travel towards
Cathode
Anode
Inert electrode
Electrode
What is the weight of Diwata-1, the Philippines' first microsatellite?
35 Kg
50 Kg
60 Kg
40 Kg
Which part of an atom has no electrical charge?
Proton
Electron
Quark
Neutron
Which of the following is good practice when installing ground wires on a tower for lightning protection?
Ensure that connections are short and direct
Make sure that all bends in the ground wires are clean, right angle bends
All of these choices are correct
Put a loop in the ground connection to prevent water damage to the ground system
What is the standard specification for wireless Ethernet?
IEEE 802.6
IEEE 802.3
IEEE 802.11
IEEE 802.16
An electronic device invented in 1906 by Lee De Forest; was the first electronic amplification device.
Pentode
Triode
Transistor
Tetrode
In the field of electronics, what does this symbol θ signify?
Phase angle
Frequency angle
Current angle
Voltage angle
Suppose a battery-powered circuit has 1.00 Ω of net resistance, and 15.0 A of current flows through it. How much power is demanded from the battery?
66.7 mW
22.5 W
150 W
225 W
A measuring instrument used to measure the electric current in a circuit.
Current meter
Ammeter
Voltmeter
Oscilloscope
One coulomb-per-second is equal to one:
Joule
Watt
Volt
Ampere
In which of the following devices would you never find an IC as the main component?
The final amplifier in a large radio broadcast transmitter
A battery-powered calculator
A low-power audio amplifier
The microprocessor in a personal computer
The main microprocessor in a computer is located
In the power supply
In the memory chip
In the external hard drive
On the motherboard
What is the unit of frequency?
Hertz
Henry
Farad
Tesla
0 participants
0 %
Electrical current is measured in which of the following units?
Volts
Watts
Ohms
Amperes
What element possesses four valence electrons?
Insulator
Semi-insulator
Semiconductor
Conductor
Electric energy refers to _________.
Joules divided by time
Volt-coulomb
Volt-ampere
Watt
What is the color code for a 220 Ω 5% resistor?
What is the color code for a 220 Ω 5% resistor?
Orange, Orange, Black, Gold
Red, Red, Black, Gold
Red, Red, Brown, Gold
What is the purpose of a fuse in an electrical circuit?
To prevent power supply ripple from damaging a circuit
To interrupt power in case of overload
To limit current to prevent shocks
All of these choices are correct
Electrical power is measured in which of the following units?
Volts
Watts
Ohms
Amperes
