WorksheetsAgricultural Fabrication and Emerging Technologies Exam
Total questions: 100
Worksheet time: 50mins
What does PPE stand for?
Personal Protective Equipment
Public Protection Establishment
Protective Production Elements
Portable Protective Ensemble
Which shade of lens is typically the minimum requirement for arc welding?
Shade 10
Shade 8
Shade 5
Shade 12
What is the first thing you should do if a classmate is injured in the shop?
Notify the instructor immediately
Continue working and wait to see if it gets worse
Move the classmate without assessing the injury
Call 911 without informing anyone
When lifting a heavy object, should you lift with your back or your legs?
Your legs
Your back
What is the "PASS" acronym used for in fire safety?
Operating a fire extinguisher
Evacuating the building
Assessing smoke levels
Storing hazardous chemicals
A Class B fire involves which type of materials?
Flammable liquids
Ordinary combustibles (wood, paper)
Electrical equipment
Combustible metals
What is the purpose of a Ground Fault Circuit Interrupter (GFCI)?
Shut off power quickly when a ground fault is detected to protect against shock
Increase voltage to heavy machinery
Measure continuity in a circuit
Prevent arc blow during welding
True/False: You must pass all safety exams with 100% accuracy before using shop equipment.
True
False
How should you store oily rags to prevent spontaneous combustion?
In a sealed metal container
Piled in an open bin
Hanging on hooks to dry
In a cardboard box
What color is an oxygen cylinder typically painted?
Green
Black
Red
Yellow
What is the maximum safe pressure for acetylene gas?
15 psi
5 psi
30 psi
50 psi
If you get a small burn, what is the best immediate first aid?
Cool the area under clean, cool running water
Apply grease or ointment immediately
Pop any blisters that form
Tightly bandage to trap heat
Why is it important to "ring test" a grinding wheel?
To check for cracks or damage before use
To balance the wheel for higher RPMs
To verify the speed rating
To determine the grit size
What should you do if you find a power tool with a frayed cord?
Remove it from service and report/tag it out
Wrap it with tape and continue using it
Ignore it if the tool still works
Shorten the cord and use it
What is the primary purpose of a safety data sheet (SDS)?
Provide hazard, handling, and emergency information for materials
List tool prices for purchasing
Record student attendance
Schedule equipment maintenance
What is the unit of measurement for electrical resistance?
Ohm
Ampere
Volt
Watt
What does Ohm’s Law calculate ( V=I×R )?
Voltage from current and resistance
Current from voltage and resistance
Resistance from voltage and current
Electrical power
What is the difference between an insulator and a conductor?
Conductors allow electric current to flow easily, while insulators resist the flow
Conductors have higher resistance than insulators
Insulators are always made of metals, conductors are not
There is no difference in electrical properties
Which electrical component acts as a reusable "safety switch" for a circuit?
Circuit breaker
Fuse
Resistor
Transformer
In a circuit, what does "Amperage" measure?
Electric current
Voltage
Resistance
Power
What is the purpose of a transformer in a welding machine?
To change voltage levels for the welding process
To store electrical energy
To measure current in the circuit
To convert AC to DC
True/False: DC stands for Direct Current.
True
False
What does a multimeter measure?
Electrical quantities such as voltage, current, and resistance
Metal thickness only
Gas pressure only
Temperature only
Which wire in a standard 110v circuit is typically "hot" (Black or White)?
Black is hot
White is hot
Both are hot
Neither is hot
Define a "short circuit."
An unintended low-resistance connection that causes excessive current flow
A circuit with a broken path that stops current
A proper ground connection
A series circuit with many components
On a welding symbol, where is the "tail" used?
To include additional information such as process or specification
To show base metal thickness
To indicate weld size numerically
To mark the drawing’s centerline
What does a triangle symbol placed below the reference line indicate?
A fillet weld on the arrow side
A groove weld on the other side
A plug weld
A spot weld
What is a Bill of Materials (BOM)?
A detailed list of all parts and materials required for a project
A welding procedure specification
An invoice for purchased items
A safety inspection checklist
Why is "squaring" a project important during the layout phase?
It ensures right angles and proper alignment before assembly
It speeds up welding by increasing amperage
It improves paint adhesion to metal
It reduces electrical consumption
What tool is used to mark metal that won't rub off easily like chalk?
Metal scribe
Chalk
Soapstone
Wax crayon
How do you calculate the total cost of steel if you know the price per foot?
Multiply the price per foot by the total feet purchased
Divide the price per foot by the total feet
Add only the sales tax to the price per foot
Subtract scrap value from the price per foot
What is the standard margin of error (tolerance) usually found on shop drawings?
± 1/16 inch
± 1/8 inch
± 1/4 inch
± 1/32 inch
What does the "hidden line" (dashed) represent on a blueprint?
Edges or features not visible from the current view
The center of circular features
Dimensions and measurements
A cutting plane for sections
What is the common name for SMAW?
Stick welding
MIG welding
TIG welding
Gas welding
In the electrode E6010, what does the "60" stand for?
60,000 psi tensile strength
Electrode diameter in 1/100 inch
Operating temperature of 60 °C
Percent iron powder in the coating
What is the purpose of the flux coating on an electrode?
To provide shielding and slag that protect the molten weld from contamination
To increase the electrode’s electrical resistance only
To color the finished weld for inspection
To improve paint adhesion on the metal
What is "Arc Blow"?
Unwanted deflection of the welding arc due to magnetic forces
Blowing metal shavings clear of the workpiece
Air used to cool the arc during welding
Intentionally extinguishing the arc
What is the "work lead" commonly called?
ground lead
electrode holder
stinger
torch cable
What happens if your arc length is too long?
The arc becomes unstable and the weld shows excessive spatter and porosity.
You get deeper penetration and a narrower bead.
The bead becomes exceptionally smooth with no spatter.
Spatter and undercut are eliminated.
What is the difference between DCEP and DCEN?
DCEP places more heat in the workpiece, while DCEN places more heat in the electrode.
DCEP is alternating current and DCEN is direct current.
DCEP produces a colder arc than DCEN.
DCEP is only for aluminum and DCEN is only for steel.
Which electrode is best for deep penetration?
E6010
E7018
E6013
E7024
How do you prevent slag inclusion?
Clean and chip between passes and use the correct travel angle.
Increase voltage to burn through slag.
Leave the slag on to protect the bead.
Reduce shielding gas flow to keep slag thin.
What is duty cycle in a welding machine?
The percentage of a 10-minute period the machine can weld at its rated output without overheating.
The amount of wire fed per minute.
The length of time an electrode stays usable after opening the package.
The number of amps available at maximum voltage.
Name one way to prevent a stick electrode from sticking to the metal.
Maintain proper arc length and, if needed, slightly increase current.
Use a wet electrode to reduce friction.
Disconnect the work lead while striking the arc.
Lower current well below the recommended range.
What should you do with the stub of an electrode?
Place it in an approved container for collection or disposal.
Leave it on the floor near the weld area.
Tape it to the workpiece for later use.
Store all stubs in the electrode oven for reuse.
What two gases are used in oxy-fuel welding?
oxygen and acetylene
oxygen and argon
nitrogen and acetylene
carbon dioxide and acetylene
Which valve should be closed first when shutting down a torch?
acetylene valve
oxygen valve
cylinder main valve
regulator adjusting knob
What is a backfire?
A momentary pop where the flame briefly extinguishes when the tip is obstructed or touched.
A sustained burn back into the torch and hoses.
A normal operation when increasing gas flow.
A regulator failure causing pressure drop.
What is a flashback?
The flame burning back into the torch or hoses, often accompanied by a shrill sound.
A brief popping sound when the tip touches the work.
A normal adjustment made when shutting down a torch.
A condition caused only by low oxygen pressure.
What is a neutral flame?
A balanced flame with equal oxygen and acetylene, showing a well-defined inner cone and no acetylene feather.
A flame with excess oxygen producing a short inner cone.
A flame with excess acetylene producing a long, feathery cone.
A flame produced with compressed air only.
What is the purpose of a regulator?
To reduce high cylinder pressure to a steady working pressure and maintain flow.
To ignite the torch without a striker.
To mix gases in the torch handle.
To cool the torch tip during use.
Why must you never use oil or grease on oxygen fittings?
Oil or grease can react violently with oxygen and ignite.
They improve sealing at high pressure.
They prevent flashback in the hoses.
They keep the threads from galling.
How far should you open an acetylene cylinder valve?
Fully open the valve.
Half a turn.
One turn.
One to one and a half turns.
What is kerf in cutting?
The width of material removed by the cut.
The length of the cut along the workpiece.
The angle of the torch relative to the work.
The heat-affected zone around a cut.
What does the oxidizing flame have an excess of?
oxygen
acetylene
nitrogen
carbon dioxide
What is the common name for GMAW?
MIG welding
stick welding
TIG welding
flux-cored welding
What is the most common shielding gas for GMAW on mild steel?
100% argon
75% argon / 25% carbon dioxide (C25)
100% helium
nitrogen
What does the wire feeder control in GMAW?
Wire feed speed (which influences amperage).
Arc voltage.
Shielding gas flow rate.
Polarity selection.
What is cold lap or cold start?
A lack of fusion at the start of the weld due to insufficient heat or technique.
A condition where the bead is too convex from high travel speed.
Excess penetration caused by too much current.
Porosity caused only by contaminated gas.
Why is aluminum harder to weld than mild steel?
Its oxide layer has a much higher melting point than the base metal and it conducts heat rapidly.
It contains iron that causes magnetic arc blow.
It cannot be welded with any shielding gas.
It requires DCEN only, which produces low heat.
What type of current is typically used for GMAW?
AC
DCEN
DCEP
pulsed AC
What is a spool gun used for?
Feeding soft wires like aluminum without bird nesting.
Changing polarity during welding.
Measuring arc voltage.
Preheating the base metal.
How do you clean aluminum before welding?
Use a dedicated stainless steel wire brush and a suitable solvent to remove oxide and contaminants.
Rinse with water and dry only.
Use engine oil to keep the surface slick.
Sandblast with steel grit to embed iron.
What is the purpose of the contact tip?
To transfer current to the wire and guide it through the nozzle.
To mix shielding gases before they reach the arc.
To regulate gas flow to the torch.
To insulate the nozzle from the workpiece.
What does bird nesting refer to in a wire feeder?
A tangled wad of wire near the drive rolls from improper feeding.
Proper coiling of wire on the spool.
Using soft wire with a push-pull system.
Cleaning the liner with compressed air.
What is the common name for GTAW?
TIG welding
MIG welding
stick welding
submerged arc welding
What type of electrode is used in GTAW?
A non-consumable tungsten electrode.
A flux-coated steel stick electrode.
A copper-coated solid wire electrode.
A consumable carbon electrode.
Which shielding gas is most commonly used for TIG?
argon
carbon dioxide
nitrogen
oxygen
What does the foot pedal control in TIG welding?
Amperage/heat input during welding.
Shielding gas flow.
Polarity switching between AC and DC.
Torch cooling water pressure.
What state of matter is plasma?
Ionized gas.
Supercooled liquid.
Solid metal vapor.
Compressed air.
What gas is most commonly used for Plasma Arc Cutting (PAC)?
Compressed air
Argon
Helium
Oxygen
Plasma cutting can only be used on ferrous (iron-based) metals.
True
False
What is the pilot arc in a plasma cutter?
A small initiating arc that establishes the main cutting arc without touching the work.
The arc used only during shutdown.
A backfire in the torch tip.
An arc that forms inside the compressor.
What tool is used to cut internal threads in a hole?
tap
die
reamer
broach
What tool is used to cut external threads on a rod?
die
tap
end mill
hone
What is the difference between a ferrous and a non-ferrous metal?
Ferrous metals contain iron; non-ferrous metals do not.
Ferrous metals are always lighter than non-ferrous metals.
Ferrous metals cannot be welded; non-ferrous can.
Ferrous metals are nonmagnetic; non-ferrous are magnetic.
What is tempering in heat treatment?
Reheating quenched steel to a lower temperature to reduce brittleness and increase toughness.
Rapidly cooling hot steel in water to harden it.
Heating steel above its critical temperature to austenitize.
Normalizing steel by air cooling from a high temperature.
What is the purpose of "annealing" metal?
To harden the metal for wear resistance
To soften and relieve internal stresses to improve ductility
To coat the metal to prevent corrosion
To remove rust and scale from the surface
Name the tool used to make a small indentation before drilling.
Center punch
Cold chisel
Drift pin
Awl
When drilling, what is the purpose of cutting oil?
To glue the drill bit in place
To lubricate and cool the bit to reduce friction and heat
To increase cutting speed by hardening the bit
To mark the hole location
Which file is used for rough, fast metal removal?
Smooth-cut file
Second-cut file
Bastard-cut file
Mill file
How do you "pin" a file?
By cleaning lodged chips from the teeth using a file card and pick
By heating the file until chips fall out
By striking the file with a hammer to free debris
By soaking the file in water
What is the "pitch" of a hacksaw blade?
The angle of the tooth set
The thickness of the blade
The number of teeth per inch (TPI)
The overall length of the blade
What is the process of joining two metals using a filler rod with a low melting point?
Welding
Brazing
Soldering
Riveting
Why should you always use a handle on a file?
To increase the file’s hardness
To protect your hand from the tang and improve control
To keep the teeth clean while filing
To reduce the file’s weight
What does GNSS stand for?
Global Navigation Satellite System
Geographic Network Surveying System
Global Node Synchronization Service
General Navigation Signal Standard
How many satellites are required for a 3D position fix?
Three
Four
Five
Six
What is RTK (Real-Time Kinematic) used for in GPS?
To speed up satellite acquisition
To provide centimeter-level positional accuracy via real-time corrections
To extend battery life in receivers
To map only elevation changes
What is "Variable Rate Technology" (VRT)?
Applying a single fixed rate of input across a field
Technology that varies input application rates across a field based on data
A method for mapping soil pH only
A technique for increasing tractor speed
How does laser technology assist in land leveling?
By heating soil to change its texture
By providing a precise elevation reference to control grading equipment
By measuring soil moisture directly
By detecting crop health from the air
What is a "Yield Map"?
A map showing tractor paths during planting
A spatial map of harvested yield across a field from combine sensors
A topographic map of field elevations
A soil texture classification chart
Define "Section Control" on a sprayer.
Manual adjustment of nozzle size
Automatic on/off control of boom sections to reduce overlap using GPS
Changing spray pressure to increase droplet size
Using larger tanks to reduce refill time
What is the FAA regulation that governs small Unmanned Aircraft Systems (sUAS)?
Part 61
Part 91
Part 107
Part 135
What is the maximum altitude for flying a drone under Part 107?
200 feet above ground level
300 feet above ground level
400 feet above ground level
500 feet above ground level
You must keep your drone within "Visual Line of Sight" (VLOS).
True
False
What is a "Multispectral Camera" used for in farming?
Capturing thermal images of machinery
Recording sound levels around fields
Collecting imagery in multiple wavelengths to assess crop health
Measuring soil compaction directly
Can you fly a drone over a group of people without a waiver?
Yes, always
No, not under standard Part 107 operations
Only at night
Only if flying higher than 400 feet
What is the minimum age to get a Part 107 Remote Pilot Certificate?
14 years
15 years
16 years
18 years
Name one safety precaution you should take before a drone flight.
Skip preflight checks to save time
Conduct a preflight inspection and checklist for the aircraft and equipment
Rely solely on GPS without verifying controls
Ignore local weather and advisories
How can drones be used for "Crop Scouting"?
By harvesting small plots automatically
By capturing aerial imagery to identify stress, pests, and variability
By applying fertilizer during flight
By replacing soil sampling entirely
