ECT - 2019

If f(x)=x^2+4x and g(x)=2x+3, what is f(g(2))?

• 82

• 45

• 77

• 27

Which of the following is NOT an effect of reflective radio frequency (RF) power?

• Poor power transfer

• Frequency shift

• Radiation of noise

• Increased heat in the source

On which of the following voltage range settings will a voltmeter present the minimum load on a circuit?

• 2kΩ

• 1kΩ

• 0.5kΩ

• 1.5kΩ

Section 3 of NTC Memorandum Circular No. 09-09-2003 refers to ______.

• Authorization of Radio Station on Board Private Aircraft

• Open and Unprotected Radio Frequency Band

• Registration and Licensing

• Issuance of Safety Radio Certificate

Which sideband is normally used for 10m HF, VHF and UHF single-sideband communications?

• Inverted sideband

• Suppressed sideband

• Lower sideband

• Upper sideband

• 1

• 2

• 1/4

• 1/2

Answer explanation

ewan

Which of the following material is the best conductor?

• silicon

• aluminum

• carbon

• copper

"Train" and "single" is the mode selection for a ______.

• logic probe

• multimeter

• current tracer

• logic pulser

In reference to NTC Memorandum Circular No. 09-09-2003, radio equipment with an effective radiated power exceeding 250mW is referred to as _______.

• High Power Devices

• Medium Power Equipment and Devices

• Outdoor wireless Devices

• Outdoor Equipment

Approximately how much current is flowing through a circuit with a 40V source and 6.8kΩ

• 2.7mA

• 5.9mA

• 7.2mA

• 9.5mA