NEW
Font size
WorksheetsSoldering Techniques and Best Practices
Total questions: 25
Worksheet time: 13mins
Solder provides an excellent mechanically connection
True
False
Soldering is preferred over crimping when installing wires to connectors.
True
False
What are the three things required to have good solder connection?
Proper type of splice, cleanliness, and heat
Proper type of tip, cleanliness, and heat
Proper type of solder, cleanliness, and heat
When soldering you should have___ fillets?
Concave
Heating
Silver
Name the three types of soldering
Brazing, lead, and hard
Brazing, tin, and soft
Brazing, silver, and soft
60/40 solder refers to
60% silver and 40% lead
60% tin and 40% lead
60% lead and 40% tin
Aviation prefers solder less (crimped) connectors over solder connections.
True
False
What is soldering?
Removing oxidation
Connecting two clean metal pieces with a thin layer of a third metal
Welding two pieces together
Solder is meant to provide all mechanical strength of the joint.
True
False
Flux used in electronic work is
Silver based
Lead based
Rosin based
There are only three solder.
True
False
What is solder made of?
Tin and lead
Silver and lead
Tin and Rosin
What is the purpose of flux?
To remove solder alloy
To remove concave
To remove oxidation
What is special about Electrical solder?
It has no plastic range (temp range between being solid and liquid)
It has a plastic range (temp range between being solid and liquid)
It has no plastic range (temp range between being liquid and gas)
Before you solder, you need to provide a tight mechanic bond.
True
False
Cite three criteria which should be considered when selecting an appropriate size of wire for a circuit in an aircraft electrical system.
Current carrying capacity, voltage drop, and type of load
Current carrying capacity, voltage, and type of resistance
Current carrying, voltage drop, and positive load
What is the maximum permissible percentage of voltage drop allowed in a wire which supplies electrical power from a source to a load in an aircraft electrical system?
5%
10%
2%
Determine the gauge of wire required for a circuit operating at 115 volts, 10 AMPS (continuous) and a run from source to load of 56 ft. (Assume a conductor temp of 20C.)
18 AWG
20 AWG
15 AWG
Determine the gauge of wire required for a circuit operating at 28 volts, 5 AMPS (continuous) and a run from source to load of 24 ft. (Assume a conductor temperature of 20 C.)
25 AWG
20 AWG
22 AWG
What is the appropriate method for installing pre-insulated terminal lugs and splices to electric wires?
Using a crimping tool to secure the terminal lug.
Soldering the terminal lug to the end of the wire.
Soldering the exposed wire prior to crimping on the terminal lug.
Which of the following factors must be taken into consideration when determining the wire size to use for an aircraft installation?
Allowable power loss, resistance of current return path through the aircraft structure, type of load.
Mechanical strength, allowable power loss, resistance of current return path through the aircraft structure, type of load.
Allowable power loss, permissible voltage drop, current carrying capability of the conductor, type of load.
When selecting hardware for attaching bonding connections to an aircraft structure, which of the following should be considered?
Mechanical strength, ease of installation, amount of current to be carried.
Permissible voltage drop, amount of current to be carried, type of load.
Mechanical strength, allowable power loss, ease of installation.
How should the splices be arranged if several are to be located in an electrical wire bundle?
Splicing within wire bundles is not permitted.
Staggered along the length of the bundle.
Grouped together to facilitate inspection.
What is the minimum bend radius for an electrical wire bundle?
Ten times the outside diameter of the bundle.
Five times the outside diameter of the bundle.
Fifteen times the outside diameter of the bundle.
When approved, splices may be used to repair manufactured harnesses or installed wiring. The maximum number of splices permitted between any two connectors is
One
Two
Three
