Description : What does the number "2" (before the letter "N") indicate in the JAN marking scheme?
Last Answer : the number of junctions in the device, which in this case indicates a transistor.
Description : What type of PN diode is formed by using a fine metal wire and a section of N-type semiconductor material?
Last Answer : Point-contact.
Description : What are the majority carriers in an N-type semiconductor?
Last Answer : Electrons.
Description : Where would you find the wire identification system for a specific piece of equipment?
Last Answer : In the technical manual for the equipment
Description : If a wire passes through a connector what portion of the aircraft wire identification number changes?
Last Answer : Wire segment letter.
Description : When you replace components, identification marks must meet what requirements?
Last Answer : They should be readable from a single point.
Description : A resistor is handed to you for identification with the following color code: the first band is blue, followed by gray, green, gold, and brown. What is the resistor’s value?
Last Answer : 6,800,000 ohms (6.8 mega ohms), with 5% tolerance, and a 1% reliability level.
Description : What is the name given to the semiconductor device that has three or more elements?
Last Answer : Transistor
Description : What semiconductor device produces electrical energy when exposed to light?
Last Answer : Photovoltaic cell.
Description : What type of rectifier is constructed by sandwiching a section of semiconductor material between two metal plates?
Last Answer : Metallic rectifier.
Description : Conduction in which type of semiconductor material is similar to conduction in a copper wire?
Last Answer : N-type material.
Description : What are the majority carriers in a P-type semiconductor?
Last Answer : Holes.
Description : What is the name given to a piece of pure semiconductor material that has an equal number of electrons and holes?
Last Answer : Intrinsic.
Description : Name the two types of current flow in a semiconductor.
Last Answer : Electron flow and hole flow.
Description : State one requirement of an electron tube, which does not exist for semiconductors, that makes the tube less efficient than the semiconductor.
Last Answer : The electron tube requires filament or heater voltage, whereas the semiconductor device does not; consequently, no power input is spent by the semiconductor for conduction.
Description : What is lowest current at which stimulated emission exceeds spontaneous emission in a semiconductor laser called?
Last Answer : Threshold current.
Description : What are the two most common semiconductor materials used in electronic and electro-optic devices?
Last Answer : Silicon and gallium arsenide.
Description : Which semiconductor sources (LD or LED) emit more focused light and are capable of launching sufficient optical power into both single mode and multimode fibers?
Last Answer : LDs.
Description : Semiconductor LEDs emit incoherent light. Define incoherent light
Last Answer : Light waves that lack a fixed-phase relationship
Description : What are the four most common materials used in semiconductor detector fabrication?
Last Answer : Silicon, gallium arsenide, germanium, and indium phosphide.
Description : What characteristic of a gunn oscillator is inversely proportional to the transit time of the domain across the semiconductor?
Last Answer : The frequency.
Description : The domain in a gallium-arsenide semiconductor has what type of electrical field when compared to the other regions across the body of a semiconductor?
Last Answer : A field of much greater intensity.
Description : The point on the current curve of a gallium-arsenide semiconductor at which it begins to exhibit negative resistance is called what?
Last Answer : Threshold.
Description : What happens to the electrons of a gallium-arsenide semiconductor when they move from the normal low-energy conduction band to the high-energy conduction band?
Last Answer : The electrons become immobile.
Description : What is another name for semiconductor memory chips?
Last Answer : Integrated circuits.
Description : A semiconductor memory consists of what?
Last Answer : hundreds of thousands of tiny electronic circuits etched on a silicon chip
Description : What characteristic of a transistor is varied in a semiconductor-reactance modulator?
Last Answer : Collector-to-emitter capacitance.
Description : In a TDX system with standard synchro connections, the TX rotor is at 120º and the TDX rotor is at 40º. What position will the TR indicate?
Last Answer : . 80º.
Description : What do the dotted lines connecting C1, C2, C5, and C6 indicate?
Last Answer : The dotted lines indicate that these capacitors are "ganged" and are tuned together with a single control.
Description : Does 1:5 indicate a step-up or step-down transformer?
Last Answer : Step up.
Last Answer : Step up
Description : In the add mode, what does the output of C2 indicate?
Last Answer : . MSD of the sum.
Description : Does low ripple voltage indicate good or bad filtering?
Last Answer : Good.
Description : What does each generation of computer systems indicate?
Last Answer : Significant change in computer design.
Description : What does the wattage rating of a resistor indicate?
Last Answer : Its ability to dissipate heat
Description : While measuring frequency response, as the signal generator approaches the lowest and highest frequency the recorder can effectively record, the VTVM reading drops to less than - 3 dB. What does this indicate?
Last Answer : The upper and lower limits of the frequency response specification for that tape recorder.
Description : What does the color red indicate on a tty patch panel?
Last Answer : It handles classified information.
Description : In applying Kirchhoff’s current law, what does the polarity of the current indicate?
Last Answer : Whether the current is entering the junction (+) or leaving the junction (-).
Description : Why will a meter indicate more voltage at the battery terminal when the battery is out of a circuit than when the battery is in a circuit?
Last Answer : The internal (source) resistance of the battery will drop some of the voltage
Description : What does a lighted LED indicate on a logic comparator?
Last Answer : A difference in logic states between the reference IC and the IC under test.
Description : You have just checked a 1/500-ampere fuse with an ohmmeter and find it is open. Checking the replacement fuse shows the replacement fuse is open also. Why would the replacement fuse indicate open?
Last Answer : The ohmmeter causes more than 1/500 ampere through the fuse when you check the fuse, thus it opens the fuse.
Description : What does the voltage rating of a fuse indicate?
Last Answer : The ability of the fuse to quickly extinguish the arc after the fuse element melts and the maximum voltage that cannot jump across the gap of the fuse after the fuse opens.
Description : What does the current rating of a fuse indicate?
Last Answer : The amount of current the fuse will allow without opening.
Description : If the insulation of a conductor was being measured in figure1-51 (A), would the reading indicate a good insulation?
Last Answer : Yes.
Description : In a galvanometer, what two methods are used to indicate the amount of coil rotation?
Last Answer : The pointer arrangement and the light and mirror arrangement.
Last Answer : he pointer arrangement and the light and mirror arrangement.
Description : What does the term single phase indicate?
Last Answer : One voltage (one output).
Description : how do i indicate i am signing a letter for a boss? Is it (fomat): signature/s: my initials?
Last Answer : signature/s/
Description : In Mangifera indica L., what does letter ‘L’ indicate?
Last Answer : In Mangifera indica L., what does letter ‘L’ indicate?