Description : What is an advantage of using a resistance soldering iron when soldering wire to a connector?
Last Answer : The soldering tips are hot only during the brief period of soldering the connection, thus minimizing the chance of burning the wire insulation or connector inserts.
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 : Which type of fiber optic connector (butt-jointed or expanded beam) brings the prepared ends of two optical fibers into close contact?
Last Answer : Butt-jointed connectors.
Description : What connection properties result in fiber optic connector coupling loss?
Last Answer : Poor fiber alignment and end preparation, fiber mismatches, and Fresnel reflection.
Description : Which fiber optic component (splice, connector, or coupler) makes a permanent connection in a distributed system?
Last Answer : Splice.
Description : Which connector should you use to connect the (a) power source and (b) load to the fuseholder shown in figure 2-12(A)?
Last Answer : a. Center connector b. Outside connector
Description : What visual technique should be used when searching for an aircraft? a. Sweep from side to side with the eyes covering the whole field of vision b. Search the sky portion by portion starting ... the sky and confirm before passing onto another d. Use a succession of small and rapid eye movements
Last Answer : c. Pinpoint 10° segments of the sky and confirm before passing onto another
Description : When low flying aircraft passes overhead, we sometimes notice a slight disturbance on our TV screen. Why is it so?
Last Answer : Ans: a low flying aircraft reflects TV signal. Due to the interference between the direct signal and the reflected signal, there is disturbance on the TV screen.
Description : How will an oncoming aircraft on a line of constant bearing appear visually? a. There will be no relative movement and it will appear to be very small until seconds before the collision b ... relative movement and it will appear to be very small until seconds before the aircraft passes well clear
Last Answer : a. There will be no relative movement and it will appear to be very small until seconds before the collision
Description : How will an oncoming aircraft on a line of constant bearingappear visually? a. There will be no relative movement and it will appear to be very small until seconds before the collision b. ... movement and it will appear to be very small until seconds before the aircraft passes well clear
Description : How will an oncoming aircraft on a line of constant bearing appear visually? a. There will be no relative movement and it will appear to be very small until seconds before the collision ... relative movement and it will appear to be very small until seconds before the aircraft passes well clear
Description : If one branch of a parallel network is shorted, what portion of circuit current flows through the remaining branches?
Last Answer : None.
Description : Why is no emf induced in a rotating coil when it passes through the neutral plane?
Last Answer : No flux lines are cut.
Description : When same current passes for same time through a th ick and thin wire a. more heat is produced in thick wire b. more heat is produced in thin wire c. no heat is produced in wire d. less heat is produced in thick wire
Last Answer : More heat is produced in thin wire. Reason:The resistance of a thin wire is greater than the resistance of a thick wire because a thin wire has fewer electrons to carry the current. And higher resistance produces more heat therefore thin wire overheats.
Description : What does the letter "N" indicate in the semiconductor identification system?
Last Answer : A semiconductor.
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 : A particle of mass m is moving along a straight path through the origin of coordinates with a velocity v. The angular momentum of the particle about the origin (a) mv (b) Depends on its distance from origin (c) Is zero (d) Changes from positive to negative as it passes through the origin
Last Answer : Ans:(c)
Description : International Date Line, an imaginary line where date changes as one travels east or west across it, passes through which longitude?
Last Answer : 180 degree
Description : Pick up the correct statement from the following: (A) A graphical representation of spectral reflectance verses the various growth stages of a crop, depicts a phonologic pattern B) The changes in ... characteristic of the object which helps in the identification of the object (D) All of these
Last Answer : Answer: Option D
Description : Which portion of a sine-wave input is retained in the output of a series-negative limiter?
Last Answer : Positive.
Description : Which portion of a sine-wave input is retained in the output of a series-positive limiter?
Last Answer : Negative.
Description : In the subtract mode, a 1 at C0 performs what portion of the R’s complemen
Last Answer : Add 1 portion.
Description : In the subtract mode, which portion of the problem is complemented?
Last Answer : Subtrahend.
Description : At what portion of the magnetization curve should a magnetic amplifier be operated?
Last Answer : . The knee of the curve.
Description : Magnetron tuning by altering the surface-to-volume ratio of the hole portion of a hole-and-slot cavity is what type of tuning?
Last Answer : Inductive.
Description : What portion of an electron gun causes the electrons to accelerate or decelerate?
Last Answer : The buncher grids.
Description : What type of lens decelerates a portion of a spherical wavefront
Last Answer : Delay lens
Description : Vacuum tubes are designed to operate in what portion of the Ep - Ip
Last Answer : The linear portion.
Description : What is the effect on total resistance and total current in a circuit if a short occurs in (a) a parallel branch, and (b) in a series portion?
Last Answer : (a) Total resistance decreases, total current increases (b) Total resistance decreases, total current increases
Description : What is the effect on total resistance and total current in a circuit if an open occurs in (a) a parallel branch, and (b) in a series portion?
Last Answer : (a) Total resistance increases, total current decreases (b) Total resistance becomes infinite, total current is equal to zero
Description : Ideally, an oscilloscope presentation should cover what vertical portion of the screen?
Last Answer : At least 60% of the vertical trace.
Description : A refracted wave occurs when a wave passes from one medium into another medium. What determines the angle of refraction?
Last Answer : The density of the two mediums, and the velocity of the waves.
Description : What is the filter called that passes low frequencies but rejects or attenuates high frequencies?
Last Answer : Low-pass filter, high-frequency discriminator or high-frequency attenuator.
Description : Which coaxial connector is a more complex and expensive but do a better job in maintaining the electrical characteristics of the cable through the interconnections? A. N-type connector B. F-type connector C.BNC D. PL-259
Last Answer : A. N-type connector
Description : What two way where the water vapour changes as it passes down the glass tube in the condenser?
Last Answer : Feel Free to Answer
Description : What is used to tie wire bundles in high-temperature areas?
Last Answer : High-temperature, pressure-sensitive tape.
Description : What size wire bundles require double lace?
Last Answer : Bundles that are 1 inch or larger in diameter
Description : Why is flat tape preferred instead of round cord when wire bundles are laced?
Last Answer : Round cord has a tendency to cut into the wire insulation.
Description : Why should wire be stripped 1/32 inch longer than the depth of the solder barrel?
Last Answer : To prevent burning the insulation during the soldering process and to allow the wire to flex easier at a stress point.
Description : Should aluminum wire be cleaned prior to installing an aluminum terminal lug or splice?
Last Answer : No, it is done automatically by the petroleum abrasive compound that comes in the terminal or splices.
Description : Why are the ends of the wire clamped down after a Western Union splice is made?
Last Answer : To prevent damage to the tape insulation.
Description : What tool should be used to strip aluminum wire?
Last Answer : Knife.
Description : What is the preferred method for stripping wire?
Last Answer : By use of a wire-stripping tool
Description : The large surface area of a waveguide greatly reduces what type of loss that is common in two-wire and coaxial lines?
Last Answer : Copper loss.
Description : . Why are coaxial lines more efficient at microwave frequencies than two-wire transmission lines?
Last Answer : The electromagnetic fields are completely confined
Description : What is the purpose of the spring or wire around the leads of a new MOSFET?
Last Answer : To prevent damage from static electricity.
Description : Conduction in which type of semiconductor material is similar to conduction in a copper wire?
Last Answer : N-type material.