WorksheetsManufacturing S1 Final Batch 3
Total questions: 21
Worksheet time: 11mins
Identify a real-world system that uses direct current.
Household outlets
Automotive battery systems
Industrial transformers
HVAC compressors
Identify a real-world system that relies on alternating current.
Flashlight circuits
Car horn relays
Residential wall outlets
Portable radios
Describe one role of a transistor in a low-voltage circuit.
Increase wire thickness
Work as an automated fuse
Act as a switch or amplifier
Store electrical charge
State what a capacitor is designed to store.
Mechanical force
Sound waves
Energy in an electric field
Thermal energy
Explain why current limiting is required for an LED.
LEDs generate wireless signals
LEDs reverse their polarity automatically
Excess current can permanently damage the LED
LEDs cannot operate at room temperature
Describe the meaning of a ground symbol in schematics.
Indicates highest voltage point
Indicates lowest voltage point
Indicates a connection to earth
Indicates a connection to a battery
What does a ground connection do?
Acts as wireless antenna
Provides a zero reference point
Replaces the battery
Explain what creates a short circuit.
Low humidity
Insufficient wire length
An unintended low-resistance path bypassing the load
Excessive cooling of components
Describe the relationship between voltage, current, and power.
Power decreases when voltage or current increase
Voltage and power are unrelated
Power increases when either voltage or current increases
Current prevents voltage from rising
State how a properly formed solder joint should appear.
Dull and grainy
Bulky and uneven
Smooth and shiny
Peaked and sharp
Explain why solder may fail to wet a pad.
Excessive lead shortening
Iron tip is too hot
Insufficient heat transfer or oxidation on the pad
Excess pressure applied
Identify the purpose of flux during soldering.
Harden the solder
Remove metallic plating
Clean oxidation and improve bonding
Increase melting temperature
Describe the risk introduced by excess solder on adjacent pads.
Reduced brightness
Incorrect component polarity
Solder bridging and unintended electrical connection
Longer warm-up time
State why component orientation matters during soldering.
It affects color
It prevents heat damage
Polarized components must align with circuit direction
Orientation changes wire gauge
Explain what happens when a component moves before solder solidifies.
The joint becomes stronger
The polarity changes
The solder joint becomes unreliable or cracked
Solder reflows automatically
Identify a 3D printing parameter that influences part strength.
Screen brightness
Printer color profile
Infill density
Bench height
Describe why supports are required for certain geometries.
To change model color
To reduce printer noise
To prevent collapse of overhangs
To increase file size
Explain why assembly-fit parts require tolerances.
Prevent thermal expansion
Increase STL resolution
Ensure components fit without excessive force
Reduce software load
Explain how infill pattern affects printed part behavior.
It changes color shades
It determines smell of the print
It influences strength and flexibility
It adjusts filament diameter
Describe why through-all cuts are used on variable-thickness parts.
To allow easy conversion to STL
To match drawing fonts
To remove material regardless of thickness
To change material density
Explain how over-constraining an assembly affects motion.
Increases degrees of freedom
Changes material properties
Creates mate conflicts and restricts movement
Improves performance automatically
