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MPTC Lynnfield EVOC UPDATED
ACTUAL Questions and CORRECT
Answers
Two types of weight shift (Transfer) - CORRECT ANSWER - Longitudinal and lateral What is longitudinal weight transfer? - CORRECT ANSWER - Happens when the car is accelerating or braking. Creates more rolling friction. What is lateral weight transfer? - CORRECT ANSWER - occurs when the vehicle turns What can create less lateral weight transfer and more control of the vehicle? - CORRECT ANSWER - Smooth steering What is centrifugal force? - CORRECT ANSWER - pulls a moving object outward from the center of rotation What is centripetal force? - CORRECT ANSWER - pull a moving object inward toward the center of rotation What is the most critical factor is motor vehicle operations? - CORRECT ANSWER - The driver (They account for 90% of all MV crashes) Correct seating position - CORRECT ANSWER --Seated upright with shoulders against the seat
- upper arms rest against rib cage with elbow at a slight bend
- correct steering wheel hand position to ensure good line of sight to the road
- heel is on floor board between gas and brake pedals
- rest left foot on the dead pedal on the far left
correct hand positioning for high and low speed driving tasks - CORRECT ANSWER - 3 & 9 o'clock correct hand positioning for tight, low speed turns - CORRECT ANSWER - hand-over- hand correct hand positioning for backing up - CORRECT ANSWER - one hand What does ESC (Electronic Stability Control) do? - CORRECT ANSWER - When turned on, integrates vehicles ABS, traction control, and yaw control systems to control vehicle when lateral forces exceed surface friction, speeds exceed the threshold, or the vehicle begins to slide /skid. What is threshold braking? - CORRECT ANSWER - used to reduce speed or stop the vehicle as quickly as possible with minimal steering adjustment. How can you perform a threshold brake? - CORRECT ANSWER - apply and maintain the maximum amount of pedal pressure without activating ABS, locking up the wheels, or skidding. Gradually release brake pressure as needed to avoid ABS activation or skidding. Over-steering - CORRECT ANSWER - vehicles rear tires lose traction and skid to the outside of a turn What can cause over-steer? - CORRECT ANSWER --improper air tire pressure
- braking too hard into a turn
- abruptly releasing accelerator going into turn
- turning too sharp or fast to cause unnecessary lateral weight transfer How to correct over-steer - CORRECT ANSWER --ease off the throttle
Best practices for backing up - CORRECT ANSWER - gradual acceleration, maintain speed control, avoid sharp or sudden turns, control front end swing, be aware of front wheel tracking Best practices for driving in inclement weather - CORRECT ANSWER - reduce speed, turn on headlights, increase following distances, keep windows and mirrors clean, identify stopped or slow-moving vehicles. SIPDE (Defensive driving) - CORRECT ANSWER - Scan, Identify, Predict, Decide, Execute Crash avoidance maneuvers - CORRECT ANSWER - Reduce speed, braking, evasive steering, rear wheel tracking, escape routes, space cushion. Following distance for normal driving conditions - CORRECT ANSWER - 2 - 3 seconds Following distance for normal night driving conditions - CORRECT ANSWER - 3 - 4 seconds Following distance for rain, snow, ice or gravel covered roads - CORRECT ANSWER - 5 - 6 seconds What are the requirements for police officer responding to emergencies to make them exempt from certain MV laws? ch.89 s.7b - CORRECT ANSWER --When operating the patrol car outside of standard rules and law, officers must due so with caution and due regard to public safety
- Before entering an intersection, officers must come to a complete stop
- Officers are never permitted to pass a school bus picking up or dropping off students Best practices for emergency response driving - CORRECT ANSWER --Gather information
- Take the safest route
- Turn on warning devices Best practices for pursuit driving - CORRECT ANSWER --Intiation
- Radio Communication
- Number of patrol cars
- Warning devices
- Visual lead time
- Road positioning
- Following distance
- Speed
- Continuation
- Termination Visual lead time for officers in pursuits - CORRECT ANSWER - 12 seconds
