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

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

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

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

What is NOT extraneous root of the expression $$\sqrt[\ ]{\left(5x-1\right)}-\sqrt[\ ]{x=1}$$

Which of the following material is the best conductor?

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

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

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

If the readings of the two wattmeters in the 2-wattmeter method of power measurement are 4.5 kW and 3.5 kW respectively and the latter reading has been obtained after reversing the current coil of the wattmeter. What will be the total power in kW?

Which of the following dissipate the most power when connected across 230V source?

An ac source of 20V and internal resistance 20kΩ is matched to a load by a 16:1 transformer. Determine the value of the load resistance.

What determines the strength of a magnetic field around a conductor?

Which of the following is true for an analog VOM with a mirror along the printed scale?

1. The pointer deflection will be magnified by the mirror when measuring small values of voltage, current, and resistance.

2. The meter should always be read by looking at the meter from the side.

3. The meter is read when the pointer and its mirror reflection appear as one.

The power factor of a purely resistive circuit is ________.

Section 24 of RA9292 refers to _____.

Which of the following is true to a constant-current source?

1. 1. has very low internal resistance

2. supplies constant current to a wide range of load resistances

3. has very high internal resistance

The duty cycle of a pulse is determined by which formula?

If you graph y = x + 3 with an integer setting, which of the following points would NOT be displayed as a point of the graph?

Which basic phenomenon is involved when the amplification of ultrasonic waves becomes possible in piezoelectric semiconductor under applied electric field?

In Fig. Q24, what must be the minimum wattage of the 5kΩ resistor?

A step-up transformer has a primary-to-secondary turns ratio of 1:5. If 117Vrms appears at the primary, what is the rms voltage across the secondary?

What can cause the voltage across reactances in series to be larger than the voltage applied to them?

What is symbolized in Fig. P20?

A capacitor of value 0.270 nF is to made from two plates each 55mm by 65mm, using a waxed paper dielectric of relative permittivity 3.1. Determine the thickness of paper required.

What is the safest method to remove a unconscious person from contact with high voltage source?

Which of the following would apply to a moving iron instrument?

What material will a permanent magnet be made from?

What are the possible values of a 100Ω with a 10% tolerance?

If f(x) = (x^2) + 4x and g(x)=2x+3, for what value of x will f(g(x))=g(f(x))?

Proper use of electronics/electrical measuring instruments is critical in trouble shooting electronics/electrical devices. How is an ammeter usually connected to a circuit under test?

A triac is equivalent to _____.

A certain Wheatstone bridge has the following resistor values: R1=10kΩ, R2=720Ω, and R4=2.4kΩ. The unknown resistance is ______.

Erratic or unexplained digital circuit activity is normally caused by ______.

2 basic uses for transformers are _____.

What is the root of A^n = B^n which is NOT a root of A = B?

The internal resistance of a 20,000Ω/voltmeter set on its 5V range is _____.

The use of a multimeter with digital circuits allows the measurement of:

What is the sum of all the solutions of the expression 9x^4-10x^2+1=0

For a UJT, the intrinsic standof: ration, n, equals _____.

What may happen if an FM transmitter is operated with the microphone gain or deviation control set too high

Two 1.2kΩ resistors are in series and this series combination is in parallel with a 3.3kΩ resistor. The total resistance is ____.

Article III of RA 9292 refers to ______.

In reference to NTC Memorandum Circular No. 04-02-92, a certificate or written authority issued by NTC to a person, firm, company, association, or corporation authorizing the holder thereof to operate during the period specified in said authorization a mobile station in the maritime mobile-Satellite service located on board a vessel is referred to as Ship _____.

In a frequency modulation transmitter, the _____ is located between the oscillator and power amplifier.

Let a and b be fixed real numbers. What is the product of the roots of the expression 2x^2-(a+4b)x+2ab=0?

Ohm's law states that ______.

In a frequency modulation transmitter, the _____ is in between the speech amplifier and the oscillator.

To double the current range of a 50uA, 2kΩ moving-coil meter movement, the shunt resistance, RS, should be ______.