Ag Mech - Semester Exam UPDATED
ACTUAL Exam Questions And CORRECT
Answers
What is the melting, flowing together, and freezing of metals under controlled conditions? -
CORRECT ANSWER - welding
What are negatively charged particles? - CORRECT ANSWER - electrons
If electrons flow in one direction then what is this situation referred to as? - CORRECT
ANSWER - direct current
When the electrons flow from the electrode to the work piece - CORRECT ANSWER -
straight polarity
If there is a popping sound during the welding process then what does this indicate? - CORRECT
ANSWER - to high of an amperage setting
What is produced by heating with an arc between a consumable stick electrode and the work
piece? - CORRECT ANSWER - Shielded metal arc welding
What causes the electric energy to be transformed into heat? - CORRECT ANSWER -
resistance
What do the first two digits of four-digit number on an electrode indicate? - CORRECT
ANSWER - tensile strength
Which weld joint is almost as strong as the base metal? - CORRECT ANSWER - double
lap joint
, What is the flow of electrons from atom to atom in a conductor? - CORRECT ANSWER -
electricity
Where does the flow of electrons take place? - CORRECT ANSWER - in a circuit
What are materials that contain electrons that do not share or move freely? - CORRECT
ANSWER - Insulators
What has a low resistance? - CORRECT ANSWER - copper
How is electricity sold? - CORRECT ANSWER - Kilowatt-hour
Why is an entrance cap needed at electrical service into a building? - CORRECT
ANSWER - keeps water from entering the conduit or cable
What is a device that is used to measure the amount of electricity being used? - CORRECT
ANSWER - service entrance
What is commonly used on a 120-volt circuit? - CORRECT ANSWER - lighting
Why should a ground-fault circuit interrupter be located near damp areas? - CORRECT
ANSWER - to protect people from circuit imbalances
If 12-2 cable with ground is going to be used then what wires will be present? - CORRECT
ANSWER - one black, one white, one bare ground
What is the general color used to represent current from the source? - CORRECT
ANSWER - black
ACTUAL Exam Questions And CORRECT
Answers
What is the melting, flowing together, and freezing of metals under controlled conditions? -
CORRECT ANSWER - welding
What are negatively charged particles? - CORRECT ANSWER - electrons
If electrons flow in one direction then what is this situation referred to as? - CORRECT
ANSWER - direct current
When the electrons flow from the electrode to the work piece - CORRECT ANSWER -
straight polarity
If there is a popping sound during the welding process then what does this indicate? - CORRECT
ANSWER - to high of an amperage setting
What is produced by heating with an arc between a consumable stick electrode and the work
piece? - CORRECT ANSWER - Shielded metal arc welding
What causes the electric energy to be transformed into heat? - CORRECT ANSWER -
resistance
What do the first two digits of four-digit number on an electrode indicate? - CORRECT
ANSWER - tensile strength
Which weld joint is almost as strong as the base metal? - CORRECT ANSWER - double
lap joint
, What is the flow of electrons from atom to atom in a conductor? - CORRECT ANSWER -
electricity
Where does the flow of electrons take place? - CORRECT ANSWER - in a circuit
What are materials that contain electrons that do not share or move freely? - CORRECT
ANSWER - Insulators
What has a low resistance? - CORRECT ANSWER - copper
How is electricity sold? - CORRECT ANSWER - Kilowatt-hour
Why is an entrance cap needed at electrical service into a building? - CORRECT
ANSWER - keeps water from entering the conduit or cable
What is a device that is used to measure the amount of electricity being used? - CORRECT
ANSWER - service entrance
What is commonly used on a 120-volt circuit? - CORRECT ANSWER - lighting
Why should a ground-fault circuit interrupter be located near damp areas? - CORRECT
ANSWER - to protect people from circuit imbalances
If 12-2 cable with ground is going to be used then what wires will be present? - CORRECT
ANSWER - one black, one white, one bare ground
What is the general color used to represent current from the source? - CORRECT
ANSWER - black
