Free practice tests · Kids & Youth
Stuff Every Farm Mechanics Scout Should Know: free practice in 30-second cards
Stuff Every Farm Mechanics Scout Should Know
Practice facts for the Farm Mechanics merit badge. Not an official Scouting America credential.
Start Stuff Every Farm Mechanics Scout Should Know ⚡ Today's sprint 🎙️ Voice mode
Free to start, no sign-up. 67 cards so far. One Knowledge Score and day streak across all your courses.
Questions people ask
Is this practice test free?
Yes. The first 50 cards are free for everyone with no sign-up, each with the answer, why it is right and its sources. Aha Trivia members get all 67 cards and timed practice exams.
How many practice questions are there?
67 practice questions so far. Each one is a 3-choice card that takes about 30 seconds, and the course grows as new cards pass our source checks.
Where do the answers come from?
Every card lists the sources it was checked against, and each answer explains why it is right. If you think an answer is wrong, tap "Challenge this answer" in the game and it gets reviewed.
Can I study in the car?
Yes. Voice mode reads the questions out loud and you answer by voice.
Try 3 cards
- What does a safety data sheet tell you about a farm chemical?
Show the answer
Its hazards and safe handling. An SDS explains hazards, safe handling, and emergency steps for a product like oil or coolant.
- Why should you find and understand warning symbols on farm equipment?
Show the answer
They warn of hazards so you avoid harm. Universal warning symbols alert you to dangers like crushing or hot parts so you can stay safe.
- What is the main job of a diesel engine's fuel system?
Show the answer
To spray fuel so it ignites from compression heat. In a diesel engine, fuel is injected and ignites from the heat of compressed air, not a spark.
All 67 practice questions
The first 50 are free, with the answer, why it's right and the official sources. The other 17 (🔒) open with a membership (every test). Or play them as a game and track what you've learned.
Show all 67 questions
- What does a safety data sheet tell you about a farm chemical?
- Why should you find and understand warning symbols on farm equipment?
- What is the main job of a diesel engine's fuel system?
- Why is a preoperational checklist useful before running a farm machine?
- What does a voltmeter measure on a farm machine's battery?
- Why clean radiator fins on an engine powered machine?
- What should you do before greasing fittings on a machine?
- Why prepare a farm machine for winter storage?
- What is a good reason to interview a dealer technician about maintenance?
- Why tighten hydraulic fittings to the right specification?
- Why use a wire brush wheel to clean a rusty workpiece?
- What should you discuss with your counselor about farm equipment safety?
- What should a well equipped farm shop plan include?
- What does a planter do with seeds?
- How is a drill different from a planter?
- What are hay balers used for?
- What do agricultural sprayers apply to crops?
- What did steam engines do for early farm machinery?
- What does GPS guidance let advanced tractors do?
- What does agricultural automation aim to reduce?
- What is a plow designed to do?
- Why should you wear proper clothing when repairing farm equipment?
- What is the purpose of a farm shop's safety devices?
- What should you do if you find a warning symbol you do not understand on equipment?
- Why change a machine's oil and oil filter?
- What should a preoperational check include for hydraulic fluid?
- Why is preventive maintenance important for farm machines?
- What is a safe practice when using a wire brush wheel?
- Why should you learn about careers in farm mechanics?
- What does a transplanter do on a farm?
- What does a combine's name come from?
- Why might farmers want to repair their own high tech equipment?
- Why replace a broken tool handle?
- What do irrigation engines and pumps provide?
- What do autonomous crop robots do?
- What does a diesel engine compress before fuel is injected?
- What does a hydraulic system use to move a cylinder?
- What does a transmission do for a tractor's engine power?
- What is the goal of dressing a screwdriver tip with a hand file?
- Why organize a tool rack or storage system for bolts and nuts?
- What should you check before using a hand file on a tool?
- What does a preoperational check of engine coolant help you do?
- Why check transmission fluid during a preoperational check?
- Why replace the fuel filter on an engine powered machine?
- Why grease fittings on an engine powered machine?
- What law explains how pressure spreads through a closed hydraulic system?
- What is one drawback of hydraulic power compared to gears and shafts?
- In a hydraulic jack, what happens when a small cylinder pushes a much larger one?
- What does a hydraulic pump do in a system?
- What does a directional control valve do?
- Why do hydraulic systems use pressure relief valves on cylinders? 🔒
- What does a check valve allow in a hydraulic circuit? 🔒
- What is the job of a hydraulic reservoir? 🔒
- What do hydraulic accumulators do? 🔒
- What is a common use of a hydraulic motor? 🔒
- What does a gear pump offer for hydraulic machinery? 🔒
- Why are piston pumps often chosen over gear pumps? 🔒
- What does a pressure regulator do in a hydraulic circuit? 🔒
- What does a hydraulic fuse do if pressure gets too high? 🔒
- What does a combine harvester do in one pass? 🔒
- What does a tractor mostly do on a modern farm? 🔒
- How does a diesel engine control its torque? 🔒
- Why does a diesel engine have high thermal efficiency? 🔒
- What does a warning symbol with a lightning bolt usually mean on equipment? 🔒
- What does a warning symbol showing a hand being crushed mean? 🔒
- What is the main safety reason to wear eye protection when working around farm equipment? 🔒
- Why should a farm shop plan show where safety devices are located? 🔒