Tractor and Power Engineering Flashcards
6 cards from real Agricultural/Bioengineering practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Tractor and Power Engineering flashcards as text
ROPS (Rollover Protective Structure) on tractors is designed to:
Answer: Create a survival zone protecting the operator if the tractor overturns
ROPS provides a structural frame that maintains a protective zone around the operator during a tractor rollover.
Specific fuel consumption (SFC) of a tractor engine is expressed as:
Answer: Pounds of fuel per horsepower-hour (lb/hp-hr) or grams per kW-hr
SFC normalizes fuel consumption by power output, allowing efficiency comparison across engines of different sizes.
The function of a tractor's live PTO is that it:
Answer: Continues to operate independently of the tractor's ground speed or clutch engagement
A live PTO allows the operator to disengage traction without stopping PTO-driven implements, maintaining continuous implement operation.
Tractive efficiency of a tractor is defined as the ratio of:
Answer: Drawbar power to axle power delivered to the drive wheels
Tractive efficiency measures how effectively wheel-axle power is converted to useful drawbar pull, accounting for slip and rolling resistance.
Electronic draft control on a tractor's three-point hitch automatically adjusts implement depth based on:
Answer: Changes in draft force sensed at the lower links
Draft control senses resistance at the lower hitch links and raises or lowers the implement to maintain a constant draft force.
At what age must tractor operators on US farms be to operate equipment on public roads under federal child labor rules?
Answer: 16 years old
Under the US Fair Labor Standards Act, 16 is the minimum age for hazardous farm work including operating tractors on public roads.