What type of radar target bearing is referenced to your ship or aircraft?

Which part of the computer performs mathematical operation?

The first mass-produced computer built by Eckert and Maunchy Computer Company in Philadelphia USA in 1950.

It is a sequence of operation in a digital computation.

What is the central processor of the computer which is sometimes referred to as the heart of a computer system?

What is the process of designing more than 100 gates on a single chip?

_____ refers to a function of a decade counter digital IC.

A series of predefined actions or operations performed on a collection of facts.

The physical machinery of a computer system.

Which of the following is not used in hexadecimal digital symbols?

_____ refers to circuit with 10 to 100 integrated circuits.

The decimal 36 020 is equivalent to hexadecimal _____

What is the name of an electrode found in a pentode but not in a tetrode?

How do you call an eight element vacuum tube?

What is a gain of a vacuum tube having the following parameters: amplification factor is 80, external plate-load resistance of 30 000 ohms and the tubes internal plate resistance is 10 000 ohms?

What is the signal that provides color information in a colored TV?

An instrument used to measure one location in terms of coordinates.

____ are individual points in graphic display.

What is the reference cycle time in radar, when the signal is transmitted back to receiver?

What does SI magnetic flux refer?

____ is the relative permeability of paramagnetic substances.

The time lag of the magnetic flux in a magnetic material behind the magnetizing force producing it caused by the molecular friction of the molecules trying to allow themselves with the magnetic force applied to the material.

What is the magnetic equivalent of electrical resistance?

An alloy that changes directly from solid to liquid with no plastic or semi-liquid state.

The current of an electronic circuit is analogous to ____ parameter of a magnetic circuit.

Term used in electronic measuring device when a material increases resistance due to heat produced by current flowing through them.

Find which type of network provides the greatest harmonic suppression.

The maximum voltage that can be applied to a capacitor without the capacitor breaking down or shorting.

Which of the following allows more current if applied to the same voltage?

Where does practically all of the RF current flow in a conductor?

How are networks able to transform one impedance to another?

Who discovered the most important electrical effects, which is the magnetic effect?

Which of the following magnetic materials which can be easily magnetized in both direction?

Materials that have very high permeabilities (hundred and even thousand times that of free space).

The quantity of magnetism retained by a magnetic material after withdrawal of the magnetizing force is called.

The K shell or the first has how many permissible numbers of orbiting electrons?

Flux density is measured in

One oersted (Oe) is equivalent to ___ Gb/cm.

A magnetic flux of 2.5 x 10^-4 Wb through an area of 5 x 10^-4 square meters results in

If a 20 V potential is applied across a relay coil with 50 turns having 1 Ω of resistance, the total magnetomotive producing magnetic flux in the circuit is

What is the reluctance of a magnetic path having a length of $$2 x 10^{-3} m$$ and cross-sectional area of $$2.5 x 10^{-3} m^{2}$$ . The relative permeability is 100.

How many turns are needed to produce a magnetomotive across a solenoid of 100 turns having a resistance of 2 Ω. Calculate the number of ampere-turns?

Series resonance occurs when

At what frequency will an inductor of 5 mH have the same reactance as a capacitor of 0.1 μF?

In a series RLC circuit

Which of the following conditions is not true for a series RLC circuit at resonance?

If three 9 mH inductors are connected in parallel without mutual inductance, then the total inductance is

If resonant frequency is 10 kHz and quality factor is 50, then

At what frequency will the current in a series RLC circuit reach its maximum value for an applied voltage of 15 with R = 500 Ω, L = 100 μH and C = 0.001μF?

A series RLC circuit consists of a 10Ω resistor in series with L = 10μH, and C = 100 μF. Determine a new value of L for which the resonant frequency is one-half the original value.

A 0.09 microfarad capacitor is charged to 220 Volts. How long in milliseconds will it discharged to a level of 110 V if the discharged resistor has a resistance of 20,000 ohms?

A trigger circuit consisting of a capacitor of 0.01 μF is connected in series with a resistor. If the circuit requires 100 Vdc to operate, determine the value of the resistor when the constant is 0.009s.

What is the peak factor for alternating current or voltage varying sinusoidally?

What is the complex impedance of a circuit with an absolute resistance of 300 Ω?

Type of MOSFET that can be independently controlled by two separate signals.

It exhibits a negative temperature coefficient.

In order to have the best efficiency and stability, where on the loadline should a solid-state power amplifier be operated?

Find from the following statements, description of a defective diode.

Solve the collector current if base current is 200 mA and the current gain is 20.

Solve for the base current if collector current is 600 mA and the current gain is 20.

A good material conductor should have ___ valence electrons.

A ___ is a junction field-effect transistor with Schottky barrier instead of a normal semiconductor junction.

In the operation of a dry cells we normally refer to the supply of current to load resistance where its current neutralize the separated charges at the electrons.

Find the output of a four (4) lead acid cells.

Find unloaded output of a power supply having a transformer regulation of 11.10% and 900 V load output.

Determine how long a battery will last whose rating is 100Ah; 24 volts and will run a 300 watts electronic equipment and a 50 watts light.

Which of the following statements is not true?

Type of cell used mostly for emergency equipment. It is light, small, and has a large capacity of power for its size.

Find the frequency in kilocycle per second in the armature of a 10 pole, 1,200 rpm generator.

How many silver zinc cells in series are needed for a 9V battery?

How much is the secondary voltage of a power transformer whose parameters are as follows, primary voltage is 240 V, 140 turns in the primary and 7 turns in the secondary.

How many nickel-cadmium cells are needed in series for a 10 V battery?

How long can a battery last with capacity of 50 ampere-hour running an equipment of 5 amperes?

___ is a type of linear voltage used in applications where the load on the unregulated voltage source must be kept constant.

What does the term single-phase indicates?

How many lithium cells in series are needed for a 12 V battery?

Which class of amplifier is distinguished by the flow of current in the output essentially in 180 degrees pulses?

Find the ripple factor (Kr) of a sinusoidal signal with peak ripple of 4 volts on an average of 30.

Silicon diodes are used in a two-diode full-wave rectifier circuits to supply a load of 12 volts Dc. Assuming ideal diodes and the load resistance is 12 ohms, compute the efficiency of the rectifier in percentage.

___ is the characteristic of an oscillator that enables it to sustain oscillation after removal of the control stimulus.

The gain of a different amplifier is 10, and all inputs are sine waves with a peak-to-peak amplitude of 10 millivolts. If the single input, differential output, differential amplifier has an output signal taken between the two output terminals. What will be the peak to peak amplitude of the combined output?

It consists of elements inseparably associated and formed on or within a single substrate.

IC production method to prevent unwanted interaction between elements within a chip.

All input signals are waves with a peak amplitude of 10 millivolts. The gain of the differential amplifier is 10. If it is configured as a single input and a single output. What will be the peak-to-peak amplitude of the output signal?

How do you turn on a diac?

Find the two stable operating conditions of an SCR?

The term used to describe the process whereby two transistors with positive feedback are used to stimulate the action of the thyristor.

In the concept of induction heating in industrial electronics, the eddy current penetrates to greater depths at

When testing an SCR with an ohmmeter, the SCR will conduct if what two elements are shorted together?

Analysis of the spectrum of light or other form of electromagnetic radiation emitted or absorbed by a substance in order to investigate its structure.

A triac is a/an ___ equivalent of two SCRs.

The purpose of installing thyristors across the incoming power lines to speed the control system is to ___.

What is the systematic movement of a radar beam while searching or tracking a target?

A new concept in commercial aircraft where computers monitor aircraft systems reporting on their status only if requested by the pilot or if something is wrong and displayed on the screen when necessary.

Pentagon planners computer based advanced speech recognition system.

A TRIAC behaves like two

Originally called a double-base diode. It is three-terminal, solid-state device that has several advantages over conventional transistor and has only one PN junction.

An automatic switch, which is operated by current in a coil, is called ____.

If the gain of an amplifier without feedback is 10 and with negative feedback is 8, then the feedback fraction is