Flux aids in soldering by removing what from surfaces to be soldered?

Flux aids in soldering by removing what from surfaces to  be soldered?
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1 Answer

Answer :

Oxides.
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Related questions

Why must items to be soldered be cleaned just prior to the soldering process?

Description : Why must items to be soldered be cleaned just prior to the soldering process?

Last Answer : Solder will not adhere to dirty, greasy, or oxidized surfaces.

When soldering a printed circuit board component, you should be careful to prevent damage by _________. A. quickly heating the joints, using a high wattage iron B. using the soldering iron tip sparingly C. using only acid cord solder D. applying mechanical pressure to the joints being soldered

Description : When soldering a printed circuit board component, you should be careful to prevent damage by _________. A. quickly heating the joints, using a high wattage iron B. using the soldering iron tip sparingly C. using only acid cord solder D. applying mechanical pressure to the joints being soldered

Last Answer : Answer: B

If a delicate component must be soldered into a circuit, the component may be protected from the heat of the soldering process by _____________. A. operating the soldering gun not more than 60 seconds at a time B. using a thermal shunt C. pre-oxidizing the leads to be soldered D. coating the leads to be soldered with a light oil film

Description : If a delicate component must be soldered into a circuit, the component may be protected from the heat of the soldering process by _____________. A. operating the soldering gun not more than 60 seconds at ... oxidizing the leads to be soldered D. coating the leads to be soldered with a light oil film

Last Answer : Answer: B

What type of flux must be used in all electrical and electronic soldering?

Description : What type of flux must be used in all electrical and electronic soldering?

Last Answer : Noncorrosive, nonconductive rosin fluxes.

What purpose does flux serve in the soldering process?

Description : What purpose does flux serve in the soldering process?

Last Answer : It cleans the metal by removing the oxide layer and prevents further oxidation during the soldering

Define the metal solvent action that takes place when copper conductors are soldered together.

Description : Define the metal solvent action that takes place when copper conductors are soldered together.

Last Answer : The solder dissolves a small amount of the copper, which combines with the solder forming a new alloy; therefore, the joint is one common metal.

What is a major advantage of the crimped terminal over the soldered terminal?

Description : What is a major advantage of the crimped terminal over the soldered terminal?

Last Answer : Requires relatively little operator skill to install.

What is the appearance of a properly soldered joint?

Description : What is the appearance of a properly soldered joint?

Last Answer : Bright and shiny with no cracks or pits.

When a lead is soldered to a pad without passing through the board, it is known as what type of termination?

Description : When a lead is soldered to a pad without passing through the board, it is known as what type of termination?

Last Answer : On-the-board termination.

Acid soldering flux poisoning?

Description : Acid soldering flux poisoning?

Last Answer : DefinitionAcid soldering flux is a chemical used to clean and protect the area (joint) where two pieces of metal come together. Flux poisoning occurs when someone swallows this substance.This is for information only ... Network.Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

Which type of flux should be used when soldering electrical wire connections and electronic components? A. Silver flux B. Rosin flux C. Solid flux D. Acid flux

Description : Which type of flux should be used when soldering electrical wire connections and electronic components? A. Silver flux B. Rosin flux C. Solid flux D. Acid flux

Last Answer : Answer: B

Use of flux during soldering is done to (A) Increase fluidity of solder by lowering its melting temperature (B) Prevent oxide formation (C) Wash away surplus solder (D) Full up the joint gap

Description : Use of flux during soldering is done to (A) Increase fluidity of solder by lowering its melting temperature (B) Prevent oxide formation (C) Wash away surplus solder (D) Full up the joint gap

Last Answer : (B) Prevent oxide formation

What is the purpose of using flux at the time of soldering?

Description : What is the purpose of using flux at the time of soldering? A. To remove oxidation B. To prevent corrosion C. To promote wet surface D. All of these

Last Answer : What is the purpose of using flux at the time of soldering? A. To remove oxidation B. To prevent corrosion C. To promote wet surface D. All of these

Why is steel wool NEVER used as an abrasive to clean soldering tools?

Description : Why is steel wool NEVER used as an abrasive to clean soldering tools?

Last Answer : The strands can fall into electrical equipment being worked on and cause short circuits.

What is an advantage of using a resistance soldering iron when soldering wire to a connector?

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.

A soldering gun should NOT be used on what components?

Description : A soldering gun should NOT be used on what components?

Last Answer : Electronic components, such as resistors, capacitors, and transistors.

Why are solvents used in the soldering process?

Description : Why are solvents used in the soldering process?

Last Answer : To remove contaminants from soldered connections.

What causes the nuts or screws that hold the tips on soldering irons and guns to loosen?

Description : What causes the nuts or screws that hold the tips on soldering irons and guns to loosen?

Last Answer : The heating and cooling cycles.

What happens if a soldering gun switch is pressed for periods longer than 30 seconds?

Description : What happens if a soldering gun switch is pressed for periods longer than 30 seconds?

Last Answer : It will overheat and could burn the insulation of the wire being soldered.

What should be done to a soldering iron tip that is pitted?

Description : What should be done to a soldering iron tip that is pitted?

Last Answer : File the tip until it is smooth and retin it.

State why a well-designed soldering iron is self-regulating

Description : State why a well-designed soldering iron is self-regulating

Last Answer : The resistance of its heating element increases with rising temperature, thus limiting the current flow.

Why are small-wattage soldering irons not used to solder large conductors?

Description : Why are small-wattage soldering irons not used to solder large conductors?

Last Answer : Although its temperature is as high as the larger irons, it does not have thermal inertia.

What does "tinning" mean in relationship to soldering?

Description : What does "tinning" mean in relationship to soldering?

Last Answer : The coating of the material to be soldered with a light coat of solder.

How should excess solder be removed from a hot soldering iron?

Description : How should excess solder be removed from a hot soldering iron?

Last Answer : By use of a cleaning cloth.

What safety precaution must you observe when soldering or hot-wire stripping fluoroplastic insulated wire?

Description : What safety precaution must you observe when soldering or hot-wire stripping fluoroplastic insulated wire?

Last Answer : Adequate ventilation.

In soldering, what alloy changes directly from a solid state to a liquid state?

Description : In soldering, what alloy changes directly from a solid state to a liquid state?

Last Answer : Eutectic.

How do you prevent excessive heat buildup on an area of a board when soldering multilead components?

Description : How do you prevent excessive heat buildup on an area of a board when soldering multilead components?

Last Answer : Use a skipping pattern

What determines the shape and size of a soldering iron tip?

Description : What determines the shape and size of a soldering iron tip?

Last Answer : The type of work to be done.

What is the most common source of heat in electronic soldering?

Description : What is the most common source of heat in electronic soldering?

Last Answer : Conductive-type soldering iron.

Tetracycline hydrochloride conditioning of root surfaces in periodontal surgery is to: A. Sterilise the root surface B. May enhance binding of fibronectin and fibroblast C. Aids in re-mineralising the root surface D. Assist the biding of lamina dura E. Prevents post operative infections

Description : Tetracycline hydrochloride conditioning of root surfaces in periodontal surgery is to: A. Sterilise the root surface B. May enhance binding of fibronectin and fibroblast C. Aids in re-mineralising the root surface D. Assist the biding of lamina dura E. Prevents post operative infections

Last Answer : B. May enhance binding of fibronectin and fibroblast

Which of the following hormones is NOT correctly matched with its description? A) thymosin--aids in production of T cells B) thyroxin--needed for growth and development in vertebrates C) parathyroid hormone--increases level of calcium ions in blood D) cortisol--lowers blood glucose level by removing glucose into tissues E) epinephrine--released by the adrenal medulla under stressful conditions

Description : Which of the following hormones is NOT correctly matched with its description? A) thymosin--aids in production of T cells B) thyroxin--needed for growth and development in vertebrates ... by removing glucose into tissues E) epinephrine--released by the adrenal medulla under stressful conditions

Last Answer : D) cortisol--lowers blood glucose level by removing glucose into tissues E) epinephrine--released by the adrenal medulla under stressful conditions

When removing the component, under what circumstances may component leads be clipped?

Description : When removing the component, under what circumstances may component leads be clipped?

Last Answer : If the component is known to be defective or if the board may be damaged by normal desoldering.

Is the Intel iMac's CPU socketed or soldered?

Description : Is the Intel iMac's CPU socketed or soldered?

Last Answer : I don't know technically what the case is (I suspect socketed as it's based on standard architecture) but it's not possible to upgrade the CPU, either by yourself and definitely any Apple service ... CPU upgrades are simply not allowed and Apple has made sure that it's not possible to do so.

Whose idea was it to make laptop adapters cords soldered on!

Description : Whose idea was it to make laptop adapters cords soldered on!

Last Answer : I got a new imitation Dell power cord off of eBay for the fraction of the price of the Dell one when mine went south. It is a pain in the butt when they break, but knowing where to buy a new one if this happens to break (which does seem most likely) makes it easier to live with. :)

In D.C. motor construction, the armature coils' ends are _______________. A. soldered to the commutator bar risers B. imbedded into core slots C. crimped together with brush pigtails D. spliced with the field windings

Description : In D.C. motor construction, the armature coils' ends are _______________. A. soldered to the commutator bar risers B. imbedded into core slots C. crimped together with brush pigtails D. spliced with the field windings

Last Answer : Answer: A

In actual applications, electrical connections to 'R1-R2' of figure 'A' and to 'R1-R2- R3' of figure 'B' shown in the illustration are made by ______________. EL-0092 A. soldered contacts B. spliced and taped connections C. slip rings and brushes D. solderless crimp-on connectors

Description : In actual applications, electrical connections to 'R1-R2' of figure 'A' and to 'R1-R2- R3' of figure 'B' shown in the illustration are made by ______________. EL-0092 A. soldered contacts B. spliced and taped connections C. slip rings and brushes D. solderless crimp-on connectors

Last Answer : Answer: C

A capacitor discolored due to excessive heat should be _____________. A. calibrated B. replaced C. cooled D. soldered

Description : A capacitor discolored due to excessive heat should be _____________. A. calibrated B. replaced C. cooled D. soldered

Last Answer : Answer: B

One of the following is a possible cause for a slow drift of frequency in a self-exited transmitter oscillator circuits resulting to a poor frequency stability. A. Loose shielding B. Heating of capacitor in the oscillator C. Poor soldered connections D. Faulty capacitor, resistor, tubes or resistors

Description : One of the following is a possible cause for a slow drift of frequency in a self-exited transmitter oscillator circuits resulting to a poor frequency stability. A. Loose shielding B. ... capacitor in the oscillator C. Poor soldered connections D. Faulty capacitor, resistor, tubes or resistors

Last Answer : B. Heating of capacitor in the oscillator

Which of the following is one of the possible causes for a slow drift of frequency in a self exited transmitter oscillator circuits resulting to a poor frequency stability? A. Poor soldered connections B. Power supply voltage changes C. Loose connections in the oscillator, amplifier, or antenna circuits D. DC and RF heating of resistors, causing then to change values.

Description : Which of the following is one of the possible causes for a slow drift of frequency in a self exited transmitter oscillator circuits resulting to a poor frequency stability? A. Poor soldered connections ... , or antenna circuits D. DC and RF heating of resistors, causing then to change values.

Last Answer : D. DC and RF heating of resistors, causing then to change values.

What effect does flux leakage in a transformer have on the coefficient of coupling (K) in the transformer?

Description : What effect does flux leakage in a transformer have on the coefficient of coupling (K) in the transformer?

Last Answer : it causes K to be less than unity (I).

What is WWhat is "leakage flux?"

Description : What is "leakage flux?"

Last Answer : Lines of flux generated by one winding which do not link the other winding.

What effect does flux leakage in a transformer have on the coefficient of coupling (K) in the transformer?

Description : What effect does flux leakage in a transformer have on the coefficient of coupling (K) in the transformer?

Last Answer : it causes K to be less than unity (I).

What is "leakage flux?"

Description : What is "leakage flux?"

Last Answer : Lines of flux generated by one winding which do not link the other winding.

How is the effect of load flux on control flux eliminated in a saturable-core reactor?

Description : How is the effect of load flux on control flux eliminated in a saturable-core reactor?

Last Answer : use two load windings whose flux effects cancel in the core of the reactor or use two load windings on two toroidal cores so that load flux always aids control flux in one core and opposes control flux in the other core.

What type(s) of flux should never be used on electronic equipment?

Description : What type(s) of flux should never be used on electronic equipment?

Last Answer : Chloride or (acid) and organic.

What type of feedback aids an input signal?

Description : What type of feedback aids an input signal?

Last Answer : Regenerative or positive

Does building a guitar involve any soldering?

Description : Does building a guitar involve any soldering?

Last Answer : Depends on the guitar. Acoustic, no. Electric, yes.

Anyone with soldering experience: Can you help me fix my thumb drive?

Description : Anyone with soldering experience: Can you help me fix my thumb drive?

Last Answer : Sounds like the wires are soldered onto the wrong pins and if ya don’t think any wires or leads are touching you better check it all over so that you do know that they are none touching…

What is soldering ?

Description : What is soldering ?

Last Answer : : After mechanical connection between the wire and the cable conductor, the joint is strengthened by solder and resin to strengthen the joint, increase the durability of the joint and the current barrier is called alloy or soldering.

What is soldering ?

Description : What is soldering ?

Last Answer : Soldering is the process by which two or more metals are joined together.