Technician Apprenticeship
Certification Exam
Questions And Correct Answers (Verified Answers)
Plus Rationales 2026 Q&A | Instant Download Pdf
NURSE CELESTINE
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, 1. What is the primary function of a tractor’s differential?
A. Increase engine speed
B. Allow wheels to rotate at different speeds
C. Reduce fuel consumption
D. Engage the PTO
The differential allows wheels on the same axle to rotate at different speeds,
especially when turning, preventing tire skidding and drivetrain stress.
2. Which type of hydraulic pump is most commonly used in agricultural
machinery for variable flow applications?
A. Gear pump
B. Vane pump
C. Piston pump
D. Screw pump
Piston pumps are widely used in variable displacement applications because
they can adjust flow and pressure efficiently.
3. What does the term “bleeding the brakes” refer to?
A. Replacing brake pads
B. Removing air from the brake system
C. Adding brake fluid
D. Adjusting brake pedal height
, Air in a brake system compresses under pressure, reducing braking
efficiency; bleeding removes trapped air to restore proper brake function.
4. Which safety device prevents a tractor from rolling backward on a
slope?
A. PTO
B. Drawbar
C. Parking brake
D. Hydraulic lock
The parking brake locks the transmission output, preventing unintended
vehicle movement on inclines.
5. When diagnosing engine performance issues, which reading indicates a
problem with fuel delivery?
A. Oil pressure
B. Coolant temperature
C. Fuel pressure
D. Engine RPM
Incorrect fuel pressure can result in poor engine performance, stalling, or
difficulty starting.
6. Which component converts hydraulic energy into mechanical motion?
A. Filter
B. Reservoir
C. Actuator
D. Pump
Actuators, such as cylinders or hydraulic motors, use pressurized fluid to
create linear or rotational movement.
7. What is the primary purpose of a torque converter in a hydrostatic
transmission?
A. Increase engine horsepower
B. Transfer and multiply torque from the engine to the
transmission