NCCER Technology & Digital Tools 3 — Questions and Answers
Question 1: Which type of software would a handyman use specifically to create a professional-looking invoice that automatically calculates labor plus materials tax?
- CAD software
- Field service management / invoicing software (Correct answer)
- Social media scheduler
- Password manager
Correct answer: Field service management / invoicing software
Field service management or dedicated invoicing software (e.g., Jobber, QuickBooks) automatically applies tax rules and calculates totals from line items.
Question 2: A laser distance measurer displays 'E1' or an error code when aimed at a target. What is the most common cause?
- Dead battery causing overheating
- The target surface is too transparent, reflective, or at too steep an angle (Correct answer)
- Too much ambient light in the room
- The device needs a firmware update
Correct answer: The target surface is too transparent, reflective, or at too steep an angle
Most laser measurers fail to get a return signal from highly reflective (mirrors), transparent (glass), or angled surfaces, triggering an error code.
Question 3: When using a project management app to track multiple handyman jobs, what is the purpose of a 'Gantt chart' view?
- Displays a map of job locations
- Shows tasks plotted against a timeline to visualize scheduling and overlaps (Correct answer)
- Lists materials needed for each job
- Tracks invoice payment status
Correct answer: Shows tasks plotted against a timeline to visualize scheduling and overlaps
A Gantt chart plots tasks on a horizontal timeline, helping a handyman see which jobs overlap and how to sequence work without conflicts.
Question 4: A handyman uses a digital torque wrench that beeps and vibrates when the target torque is reached. Which of the following is still the user's responsibility?
- Counting the beeps to determine torque value
- Calibrating the wrench periodically per manufacturer specs (Correct answer)
- Replacing the fastener after every torque event
- Resetting the torque value via a phone app after each use
Correct answer: Calibrating the wrench periodically per manufacturer specs
Even electronic torque wrenches require periodic calibration (often annually or every 5,000 cycles) to ensure accuracy; the tool cannot self-calibrate.
Question 5: What is the primary advantage of using QR codes on job site material boxes?
- They replace barcodes for shipping internationally only
- They allow instant access to installation instructions, spec sheets, or inventory data via smartphone (Correct answer)
- They serve as tamper-evident seals
- They encrypt the box contents from competitors
Correct answer: They allow instant access to installation instructions, spec sheets, or inventory data via smartphone
QR codes on materials link to digital datasheets, installation guides, or inventory systems, speeding up access to critical information on the job site.
Question 6: Which Wi-Fi band is generally better for a handyman's wireless inspection camera operating in a wall cavity with potential interference from neighboring networks?
- 2.4 GHz because it has longer range and fewer channels
- 5 GHz because it offers more non-overlapping channels and less interference in congested areas (Correct answer)
- 900 MHz because it penetrates walls better
- 60 GHz because it has the highest speed
Correct answer: 5 GHz because it offers more non-overlapping channels and less interference in congested areas
5 GHz has more non-overlapping channels and is less crowded than 2.4 GHz in urban environments, reducing interference for short-range video transmission.
Question 7: A handyman receives a digital blueprint as a DWG file but only has a smartphone. Which approach lets them view the file without a paid CAD license?
- Rename the file to .PDF and open it in any reader
- Use a free DWG viewer app such as AutoCAD Mobile (free tier) or DWG FastView (Correct answer)
- Convert it to MP4 with a video converter
- Open it in Microsoft Word
Correct answer: Use a free DWG viewer app such as AutoCAD Mobile (free tier) or DWG FastView
Free DWG viewer apps like AutoCAD Mobile's free tier or DWG FastView allow viewing (not editing) of CAD drawings on a smartphone without a paid license.
NCCER Technology & Digital Tools 3
Which type of software would a handyman use specifically to create a professional-looking invoice that automatically calculates labor plus materials tax?