What causes a "fractured solder" joint?

What causes a "fractured solder" joint?
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1 Answer

Answer :

Movement of the parts being soldered while the solder is cooling.
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Related questions

A capacitor discolored due to excessive heat should be _____________. A. calibrated using a capactance wheatstone bridge B. replaced and the reason for the overheating found C. cooled with a spray can of refrigerant approved for this purpose D. resoldered with care taken to insure that the origional cold solder joint is repaired

Description : A capacitor discolored due to excessive heat should be _____________. A. calibrated using a capactance wheatstone bridge B. replaced and the reason for the overheating found C. cooled with a spray ... purpose D. resoldered with care taken to insure that the origional cold solder joint is repaired

Last Answer : Answer: B

When troubleshooting an electronic circuit, a cold solder joint can be located with the aid of an ohmmeter. Once the problem has been located, you should _________________. A. reheat the circuit in an oven to an even temperature and recheck with an ohmmeter B. reheat the connection with a match and recheck with an ohmmeter C. reheat connection with a soldering tool and recheck with an ohmmeter D. do nothing as this is the normal condition

Description : When troubleshooting an electronic circuit, a cold solder joint can be located with the aid of an ohmmeter. Once the problem has been located, you should _________________. A. reheat the circuit in an ... a soldering tool and recheck with an ohmmeter D. do nothing as this is the normal condition

Last Answer : Answer: C

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

Pick up the correct statement from the following: (A) Solder material is an alloy which melts at a temperature above 400°C (B) Brazing is done at temperature above 600°C to 1100°C (C) Brazing joint is stronger than the solder joint (D) All the above

Description : Pick up the correct statement from the following: (A) Solder material is an alloy which melts at a temperature above 400°C (B) Brazing is done at temperature above 600°C to 1100°C (C) Brazing joint is stronger than the solder joint (D) All the above

Last Answer : Answer: Option D

What is the tin-lead alloy percentage of solder used for electrical connectors, splices, and terminal lugs?

Description : What is the tin-lead alloy percentage of solder used for electrical connectors, splices, and terminal lugs?

Last Answer : 60-percent tin and 40-percent lead (60/40 solder).

What two metals are used to from soft solder?

Description : What two metals are used to from soft solder?

Last Answer : Tin and lead.

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.

Why should wire be stripped 1/32 inch longer than the depth of the solder barrel?

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.

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.

Solder used in electronic repair is normally an alloy of what two elements? Solder used in electronic repair is normally an alloy of what two elements?

Description : Solder used in electronic repair is normally an alloy of what two elements?

Last Answer : Tin and lead.

When, if at all, should the heat-and-shake or the heat-and pull methods of solder removal be used?

Description : When, if at all, should the heat-and-shake or the heat-and pull methods of solder removal be used?

Last Answer : These methods should not be used.

What is the most effective method of solder removal?

Description : What is the most effective method of solder removal?

Last Answer : Continuous vacuum.

What procedure involves the use of finely braided copper wire to remove solder?

Description : What procedure involves the use of finely braided copper wire to remove solder?

Last Answer : Wicking.

Why is it not advisable to use a solder sucker when working on MOSFETs?

Description : Why is it not advisable to use a solder sucker when working on MOSFETs?

Last Answer : solder suckers create an electrostatic charge capable of damaging a MOSFET

Can you have a fractured tooth root if there's no pain to speak of and are they dangerous?

Description : Can you have a fractured tooth root if there's no pain to speak of and are they dangerous?

Last Answer : I would guess you have damage around the base of your crowns. Our gums recede with age, which after ten years would leave some enamel exposed. Around the base of your crown is prime ground for particles ... case, but you should make an appointment right away to find out what does need to be done.

What's there to criticize the mom for in the following story of dropped/skull fractured/ baby?

Description : What's there to criticize the mom for in the following story of dropped/skull fractured/ baby?

Last Answer : answer:Parents are like ship’s captains and presidents. The ‘buck’ of responsibility stops with them. I wouldn’t have been so judgemental, but then I’m not the type who goes online in search of tragedies over which to rubberneck.

What would you do if you once had a fractured root in a tooth?

Description : What would you do if you once had a fractured root in a tooth?

Last Answer : answer:X-Rays don’t lie. In fact you are making things worse using the baby-brush. To make one tooth hurt less you are fucking the integrity of all the others. I could have bought a house in Kansas with all the cash I have spent on dentistry.

Is my finger broken or fractured? Maybe the bone is bruised?

Description : Is my finger broken or fractured? Maybe the bone is bruised?

Last Answer : Um, none of us can know what state your finger is in. You need to get it checked out by the doctor and have some x-rays done to be sure.

How many bones have you broken or fractured and was it your own fault?

Description : How many bones have you broken or fractured and was it your own fault?

Last Answer : I broke my right wrist roller skating when I was a kid (my fault I guess). I broke my right wrist again when I slipped in some spilled beer at a party (not my fault). That time I had to have it surgically repaired.

Why is my foot still swollen and peeling after surgery of 1 week. I had a fractured ankle and fibula tibia?

Description : Why is my foot still swollen and peeling after surgery of 1 week. I had a fractured ankle and fibula tibia?

Last Answer : Need answer

Fractured clavicle in the newborn?

Description : Fractured clavicle in the newborn?

Last Answer : DefinitionA fractured clavicle in the newborn is a broken collar bone in a baby that was just delivered.Alternative NamesFractured collar bone - newbornCauses, incidence, and risk factorsA fracture of a newborn' ... newborn had a broken collar bone.Signs and testsA chest x-ray will show whether or

If I have rib cage pain, does this mean that I have fractured/broke a rib?

Description : If I have rib cage pain, does this mean that I have fractured/broke a rib?

Last Answer : While rib cage pain can be caused by a broken or fractured rib there could be several other causes as well including inflammation of the cartilage near the breastbone, pleurisy, muscle spasms, and osteoporosis. Only a doctor can tell you for sure what if causing your particular rib cage pain.

Medical diagnosis for a fractured hand.?

Description : Medical diagnosis for a fractured hand.?

Last Answer : You should go to your doctor or to the emergency room. An X-ray will have to be done to determine whether or not your hand has been fractured.

Which of the following is used for wrapping of fractured bones? (1) White cement (2) White lead (3) Zinc oxide (4) Plaster of Paris

Description : Which of the following is used for wrapping of fractured bones? (1) White cement (2) White lead (3) Zinc oxide (4) Plaster of Paris

Last Answer : (4) Plaster of Paris Explanation: Plaster of Paris is a plaster made by calcining gypsum. It can be used to impregnate gauze bandages to make a sculpting material called modroc. It is used ... (and sometimes still is) used to make classic plaster orthopedic casts to protect limbs with broken bones.

A material is called 'ductile', if it can be (A) Drawn into wires (B) Hammered to a thin sheet (C) Fractured without deformation (D) Made lustrous by heating it

Description : A material is called 'ductile', if it can be (A) Drawn into wires (B) Hammered to a thin sheet (C) Fractured without deformation (D) Made lustrous by heating it

Last Answer : (A) Drawn into wires

Which of the following terms refers to failure of fragments of a fractured bone to heal together? a) Nonunion When nonunion occurs, the patient complains of persistent discomfort and movement at the fracture site.

Description : Which of the following terms refers to failure of fragments of a fractured bone to heal together? a) Nonunion When nonunion occurs, the patient complains of persistent discomfort and movement at the ... growth of the fragments of a fractured bone in a faulty position, forming an imperfect union.

Last Answer : a) Nonunion When nonunion occurs, the patient complains of persistent discomfort and movement at the fracture site.

Which of the following devices is designed specifically to support and immobilize a body part in a desired position? a) Splint A splint may be applied to a fractured extremity initially until swelling subsides.

Description : Which of the following devices is designed specifically to support and immobilize a body part in a desired position? a) Splint A splint may be applied to a fractured extremity initially until swelling ... d) Trapeze A trapeze is an overhead patient-helping device to promote patient mobility in bed.

Last Answer : a) Splint A splint may be applied to a fractured extremity initially until swelling subsides.

Which type of chest configuration is typical of the patient with COPD? a) Barrel chest “Barrel chest” results from fixation of the ribs in the inspiratory position. b) Pigeon chest Pigeon chest results from a displaced sternum. c) Flail chest Flail chest results when the ribs are fractured. d) Funnel chest Funnel chest occurs when there is a depression in the lower portion of the sternum and is associated with Mafan’s syndrome or rickets.

Description : Which type of chest configuration is typical of the patient with COPD? a) Barrel chest Barrel chest results from fixation of the ribs in the inspiratory position. b) Pigeon chest Pigeon chest ... depression in the lower portion of the sternum and is associated with Mafan's syndrome or rickets.

Last Answer : a) Barrel chest “Barrel chest” results from fixation of the ribs in the inspiratory position.

When the neck of the condyle is fractured; what muscle determines the movement of the superior segment: A. Lateral pterygoid B. Medial pterygoid C. Masseter D. Temporalis E. Mylohyoid

Description : When the neck of the condyle is fractured; what muscle determines the movement of the superior segment: A. Lateral pterygoid B. Medial pterygoid C. Masseter D. Temporalis E. Mylohyoid

Last Answer : A. Lateral pterygoid

Child comes to your clinic with a fractured incisor 3 mm supra-gingival, how would you treat the case, A. Formocretasol pulpotomy B. Calcium hydroxide pulpotomy C. Pulpectomy D. Direct capping E. Indirect capping

Description : Child comes to your clinic with a fractured incisor 3 mm supra-gingival, how would you treat the case, A. Formocretasol pulpotomy B. Calcium hydroxide pulpotomy C. Pulpectomy D. Direct capping E. Indirect capping

Last Answer : B. Calcium hydroxide pulpotomy

When the neck of the condyle is fractured; what muscle determines the movement of the superior segment: A. Lateral pterygoid B. Medial pterygoid C. Temporalis D. Mylohyoid

Description : When the neck of the condyle is fractured; what muscle determines the movement of the superior segment: A. Lateral pterygoid B. Medial pterygoid C. Temporalis D. Mylohyoid

Last Answer : A. Lateral pterygoid

High copper amalgams are superior A. Copper is available for a secondary reaction B. Copper is not available for a secondary reaction C. Copper is burnished D. Copper is fractured E. None of the above

Description : High copper amalgams are superior A. Copper is available for a secondary reaction B. Copper is not available for a secondary reaction C. Copper is burnished D. Copper is fractured E. None of the above

Last Answer : A. Copper is available for a secondary reaction

During extraction of a maxillary third molar the tuberosity is fractured; however, it remains in place attached to the mucoperiosteum. Which of the following procedures should be employed:** A. Remove the tuberosity and suture B. Leave the tuberosity and stabilize if required C. Remove the tuberosity and fill the defect with Gelfoam then suture. D. If fractured tuberosity is greater than 2 cm, leave in place and suture

Description : During extraction of a maxillary third molar the tuberosity is fractured; however, it remains in place attached to the mucoperiosteum. Which of the following procedures should be employed:** A. Remove the ... then suture. D. If fractured tuberosity is greater than 2 cm, leave in place and suture

Last Answer : B. Leave the tuberosity and stabilize if required

Which of the following is used for wrapping of fractured bones? (1) White cement (2) White lead (3) Zinc oxide (4) Plaster of Paris

Description : Which of the following is used for wrapping of fractured bones? (1) White cement (2) White lead (3) Zinc oxide (4) Plaster of Paris

Last Answer :  Plaster of Paris

Where is the rattail joint normally used?

Description : Where is the rattail joint normally used?

Last Answer : When wires are in conduit and a junction box is used.

What is the most common type of waveguide joint?

Description : What is the most common type of waveguide joint?

Last Answer : Choke joint.

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.

in multimode fibers, how do fiber joints increase fiber attenuation following the joint?

Description : in multimode fibers, how do fiber joints increase fiber attenuation following the joint?

Last Answer : By disturbing the fiber's mode power distribution (MPD).

Is there a way I can connect 2 wires without solder?

Description : Is there a way I can connect 2 wires without solder?

Last Answer : answer:Electrical tape? *Although I’m not positive… This is more a guess for you to research as an option so please don’t just go do it.

Why does carbon attract solder smoke?

Description : Why does carbon attract solder smoke?

Last Answer : I haven't studied this in a while but solder used to be a combination of lead and some type of flux which made the lead flow and cover the connection of copper to copper. If the heat was ... may now be called Speedline Technologies. Google one of those names and see if anything helpful comes up. SRM

Why do Americans not pronounce the letter L in the word solder ?

Description : Why do Americans not pronounce the letter L in the word solder ?

Last Answer : Like saying suit, instead of sweet for suite? And what about the NUKULAR?

Good jeweler in San Francisco who can solder a ring?

Description : Good jeweler in San Francisco who can solder a ring?

Last Answer : answer:you might find something in here San Francisco Jewelry Repair in San Francisco CA http://www.superpages.com/yellowpages/C-Jewelry+Repair/S-CA/T-San+Francisco/ jewelry repair in San Francisco, ... Gem and Jewelry World's Foremost Resource on The Internet http://www.ganoksin.com/site-map.htm

Where can I learn to solder online?

Description : Where can I learn to solder online?

Last Answer : You may want to find someone to teach you in person. I’ve known people to hurt themselves before….

Solder or solder is a mixture of which metal? -General Knowledge

Description : Solder or solder is a mixture of which metal? -General Knowledge

Last Answer : answer:

I need someone who can solder -Prague

Description : Hello I would like to solder a 3.5MM jack to the headphone cable (I have a broken cable in the jack), we will agree on a financial reward, I live in Prague.

Last Answer : This site is not intended for advertising!

Which among the following is used as solder.

Description : Which among the following is used as solder.

Last Answer : Which among the following is used as solder. A. Cu and Pb B. Zn and Cu C. Pb and Sn D. Fe and Zn

What is the type of solder that would be used in hard soldering?

Description : What is the type of solder that would be used in hard soldering?

Last Answer : Need answer

Solder?

Description : Solder?

Last Answer : DefinitionSolder is used to connect electric wires or other metal parts together. Solder poisoning occurs when someone swallows solder in large amounts. It can also ... , mouth, and throat Metallic tasteVision problemsYellow eyes (jaundice)Gastrointestinal Abdominal painConstipationDiarrheaExcessiv

An alloy used in making heating elements for electric heating device is - (1) Solder (2) Alloy Steel (3) Nichrome (4) German Silver

Description : An alloy used in making heating elements for electric heating device is - (1) Solder (2) Alloy Steel (3) Nichrome (4) German Silver

Last Answer : (3) Nichrome Explanation: Nichrome is a mixture of chromium and nickel. Nichrome wire is a great conductor of electricity. Nichrome is used to make heating coils and other types of elements in household appliances.

Solder metal is an alloy of – (1) lead and tin (2) lead and antimony (3) copper and zinc (4) copper and tin

Description : Solder metal is an alloy of – (1) lead and tin (2) lead and antimony (3) copper and zinc (4) copper and tin

Last Answer : (1) lead and tin Explanation: A solder is a fusible metal alloy of tin and lead with a melting point or melting range of 90 to 450°C, used in a process called soldering where it is melted to jain metallic surfaces. It is especially useful in electronics and plumbing.