WorksheetsWelding technology
Total questions: 20
Worksheet time: 10mins
What is the main advantage of arc welding?
It is cost-effective and widely used
It does not require electricity
It produces weak joints
It is not suitable for metal joining
What is the purpose of flux in shielded metal arc welding (SMAW)?
To increase welding speed
To protect the weld from contamination
To remove the molten metal
To reduce heat
What happens if the arc length is too long in arc welding?
It produces a stable weld
It causes excessive spatter and weak penetration
It improves weld quality
It reduces heat input
What is the function of the ground clamp in arc welding?
To hold the workpiece in place
To provide an electrical path back to the welder
To cool down the weld
To supply shielding gas
What type of current can be used in arc welding?
AC
DC
Both AC and DC
Neither AC nor DC
Why is it important to wear protective gloves during arc welding?
To keep hands warm
To increase grip strength
To prevent burns and electric shock
To hold the electrode
What happens if welding speed is too slow?
It creates a weak weld
It improves the weld appearance
It reduces the heat input
It causes excessive penetration and large weld beads
What does the term 'undercut' refer to in welding?
A groove melted into the base metal next to the weld
A strong weld joint
A type of electrode
A welding position
What is the purpose of preheating the metal before welding?
To remove rust
To speed up cooling
To make the metal softer
To reduce the risk of cracking
Which type of arc welding is commonly used for stainless steel?
SMAW
TIG
Oxy-fuel
Friction welding
The welding process that uses a consumable wire electrode and shielding gas is called ……………..
MIG welding
TIG welding
Stick welding
Friction welding
The main function of flux in welding is to …………….. impurities and prevent oxidation.
add
remove
mix
increase
The strength and quality of a weld depend on factors like heat, electrode type, and ……………..
material thickness
paint color
welding machine brand
temperature of the welder's hands
Which of the following is a type of welding joint?
Lap joint
Compression joint
Riveted joint
Expansion joint
In arc welding, the power source provides …………….. to create and maintain the arc.
mechanical force
electric current
air pressure
hydraulic power
Which welding process is best suited for welding aluminum and stainless steel?
TIG
Stick
SMAW
Submerged arc
Porosity in welding is caused by the presence of …………….. in the weld metal.
oxygen or gas
excess heat
extra filler material
high voltage
The process of using heat and pressure to join metals without melting them is called …………….. welding.
fusion
pressure
gas
electric
The main reason for using shielding gas in welding is to ……………..
protect the weld from contamination
increase welding speed
reduce power consumption
add more heat
A common advantage of MIG welding is that it ……………..
provides high welding speed and efficiency
does not require electricity
is only suitable for thick materials
does not produce any fumes
