Postal Exam 943/944/945 Study Guide Prep 2026 | 200
Practice Questions & Detailed Answers | USPS Exam | Verified
Solutions
Questions 1–200
1. Exam 943 is used to hire which type of USPS maintenance position?
A. Maintenance Support Clerk
B. Automotive Mechanics responsible for routine maintenance and repair
C. Automotive Technicians responsible for complex repairs
D. Mail Processing Equipment Mechanics
Answer: B. Exam 943 is a technical test used to hire Automotive Mechanics who perform routine types
of maintenance and repair on USPS vehicles. Exam 944 is used for Automotive Technicians who handle
more complex maintenance and repair.
2. Exam 944 is used to hire which type of USPS maintenance position?
A. Automotive Mechanics for routine repairs
B. Automotive Technicians for complex maintenance and repair
C. Maintenance Support Clerks
D. Building Maintenance Technicians
Answer: B. Exam 944 is used to hire Automotive Technicians who are responsible for more complex
types of maintenance and repair on USPS vehicles.
,3. What is the primary difference between the responsibilities of Exam 943 and Exam 944 positions?
A. Exam 943 positions work on mail processing equipment; Exam 944 positions work on vehicles
B. Exam 943 positions handle routine maintenance; Exam 944 positions handle complex repairs
C. Exam 943 positions are entrylevel; Exam 944 positions are supervisory
D. There is no difference
Answer: B. Exam 943 is for Automotive Mechanics who perform routine types of maintenance and
repair. Exam 944 is for Automotive Technicians who handle more complex maintenance and repair.
4. A USPS vehicle is brought in with a complaint of excessive vibration at highway speeds. The technician
should FIRST check:
A. Engine oil level
B. Tire balance and wheel alignment
C. Transmission fluid level
D. Brake pad thickness
Answer: B. Excessive vibration at highway speeds is most commonly caused by unbalanced tires or
misalignment. Tire balance and wheel alignment should be the first areas inspected.
5. When performing a brake inspection on a USPS LLV, the technician notices the brake pads are worn
below the minimum thickness specification. The correct action is to:
A. Continue to monitor the pads and replace them at the next scheduled service
B. Replace the brake pads immediately
C. Rotate the tires to even out wear
D. Adjust the brake pedal height
,Answer: B. Brake pads worn below minimum thickness reduce braking performance and can damage
rotors. They must be replaced immediately to ensure vehicle safety.
6. What does PO408 refer to in USPS maintenance protocols?
A. A vehicle model number
B. A set of maintenance protocols and procedures for USPS fleet operations
C. A postal facility code
D. An exam section number
Answer: B. PO408 refers to maintenance protocols and procedures that govern USPS fleet operations,
covering LLV and NGDV fleet systems.
7. The USPS Long Life Vehicle (LLV) is based on which chassis platform?
A. Chevrolet S10
B. Grumman Olson Kurbwatt
C. Ford Ranger
D. Dodge Dakota
Answer: B. The USPS LLV (Long Life Vehicle) was manufactured by Grumman Olson and is based on the
Kurbwatt platform, featuring a unique aluminum body and General Motors drivetrain components.
8. The Next Generation Delivery Vehicle (NGDV) is being introduced to replace the aging LLV fleet.
Which of the following is a key feature of the NGDV?
A. Allelectric and internal combustion engine options
, B. Manual transmission only
C. Rearwheel drive only
D. No air conditioning
Answer: A. The NGDV is designed with both allelectric and internal combustion engine options, along
with modern features such as air conditioning, improved visibility, and advanced safety systems.
9. During a preventive maintenance inspection, the technician finds a loose drive belt. What is the MOST
appropriate corrective action?
A. Tighten the belt to the manufacturer's specified tension
B. Replace the belt only if it shows visible wear
C. Apply belt dressing to stop squealing
D. Ignore it until the next service
Answer: A. A loose drive belt should be tightened to the manufacturer's specified tension. If the belt is
worn or damaged, it should be replaced. Belt dressing is a temporary fix and not a proper repair.
10. What is the correct procedure for checking the engine oil level on a USPS vehicle?
A. Check when the engine is running
B. Check when the engine is off and on level ground
C. Check immediately after turning off the engine
D. Check only during oil changes
Answer: B. Engine oil should be checked with the engine off, on level ground, and after the oil has had
time to drain back to the oil pan for an accurate reading.
Practice Questions & Detailed Answers | USPS Exam | Verified
Solutions
Questions 1–200
1. Exam 943 is used to hire which type of USPS maintenance position?
A. Maintenance Support Clerk
B. Automotive Mechanics responsible for routine maintenance and repair
C. Automotive Technicians responsible for complex repairs
D. Mail Processing Equipment Mechanics
Answer: B. Exam 943 is a technical test used to hire Automotive Mechanics who perform routine types
of maintenance and repair on USPS vehicles. Exam 944 is used for Automotive Technicians who handle
more complex maintenance and repair.
2. Exam 944 is used to hire which type of USPS maintenance position?
A. Automotive Mechanics for routine repairs
B. Automotive Technicians for complex maintenance and repair
C. Maintenance Support Clerks
D. Building Maintenance Technicians
Answer: B. Exam 944 is used to hire Automotive Technicians who are responsible for more complex
types of maintenance and repair on USPS vehicles.
,3. What is the primary difference between the responsibilities of Exam 943 and Exam 944 positions?
A. Exam 943 positions work on mail processing equipment; Exam 944 positions work on vehicles
B. Exam 943 positions handle routine maintenance; Exam 944 positions handle complex repairs
C. Exam 943 positions are entrylevel; Exam 944 positions are supervisory
D. There is no difference
Answer: B. Exam 943 is for Automotive Mechanics who perform routine types of maintenance and
repair. Exam 944 is for Automotive Technicians who handle more complex maintenance and repair.
4. A USPS vehicle is brought in with a complaint of excessive vibration at highway speeds. The technician
should FIRST check:
A. Engine oil level
B. Tire balance and wheel alignment
C. Transmission fluid level
D. Brake pad thickness
Answer: B. Excessive vibration at highway speeds is most commonly caused by unbalanced tires or
misalignment. Tire balance and wheel alignment should be the first areas inspected.
5. When performing a brake inspection on a USPS LLV, the technician notices the brake pads are worn
below the minimum thickness specification. The correct action is to:
A. Continue to monitor the pads and replace them at the next scheduled service
B. Replace the brake pads immediately
C. Rotate the tires to even out wear
D. Adjust the brake pedal height
,Answer: B. Brake pads worn below minimum thickness reduce braking performance and can damage
rotors. They must be replaced immediately to ensure vehicle safety.
6. What does PO408 refer to in USPS maintenance protocols?
A. A vehicle model number
B. A set of maintenance protocols and procedures for USPS fleet operations
C. A postal facility code
D. An exam section number
Answer: B. PO408 refers to maintenance protocols and procedures that govern USPS fleet operations,
covering LLV and NGDV fleet systems.
7. The USPS Long Life Vehicle (LLV) is based on which chassis platform?
A. Chevrolet S10
B. Grumman Olson Kurbwatt
C. Ford Ranger
D. Dodge Dakota
Answer: B. The USPS LLV (Long Life Vehicle) was manufactured by Grumman Olson and is based on the
Kurbwatt platform, featuring a unique aluminum body and General Motors drivetrain components.
8. The Next Generation Delivery Vehicle (NGDV) is being introduced to replace the aging LLV fleet.
Which of the following is a key feature of the NGDV?
A. Allelectric and internal combustion engine options
, B. Manual transmission only
C. Rearwheel drive only
D. No air conditioning
Answer: A. The NGDV is designed with both allelectric and internal combustion engine options, along
with modern features such as air conditioning, improved visibility, and advanced safety systems.
9. During a preventive maintenance inspection, the technician finds a loose drive belt. What is the MOST
appropriate corrective action?
A. Tighten the belt to the manufacturer's specified tension
B. Replace the belt only if it shows visible wear
C. Apply belt dressing to stop squealing
D. Ignore it until the next service
Answer: A. A loose drive belt should be tightened to the manufacturer's specified tension. If the belt is
worn or damaged, it should be replaced. Belt dressing is a temporary fix and not a proper repair.
10. What is the correct procedure for checking the engine oil level on a USPS vehicle?
A. Check when the engine is running
B. Check when the engine is off and on level ground
C. Check immediately after turning off the engine
D. Check only during oil changes
Answer: B. Engine oil should be checked with the engine off, on level ground, and after the oil has had
time to drain back to the oil pan for an accurate reading.
