Mixed Deck — All Automotive and Mechanics Topics Flashcards
100 cards from real Automotive and Mechanics practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 20 Mixed Deck — All Automotive and Mechanics Topics flashcards as text
When bleeding brakes on a four-wheel vehicle using the gravity or pressure method, which wheel is typically bled FIRST?
Answer: Rear right (furthest from master cylinder on most vehicles)
The standard sequence starts at the wheel furthest from the master cylinder—typically the rear right—to push air progressively through the entire system.
What is the purpose of a driveshaft slip yoke?
Answer: Accommodate changes in driveshaft length as the suspension moves up and down
The slip yoke slides in and out of the transmission tail shaft to compensate for driveshaft length changes as the rear axle moves through suspension travel.
What is the relationship between Materials Science & Selection and ethical professional conduct?
Answer: Ethical considerations are integrated into all aspects of professional practice in this area
Ethical considerations are deeply integrated into Materials Science & Selection, as professional conduct and integrity underpin all aspects of practice in this field.
Which ABS component directly modulates hydraulic brake pressure to individual wheels during an ABS-activated stop?
Answer: Hydraulic control unit (HCU) / modulator assembly
The hydraulic control unit contains solenoid valves that cycle open and closed many times per second to modulate fluid pressure at each wheel during ABS activation.
What is the recommended approach to staying current in Project Planning & Scheduling?
Answer: Regular professional development, industry publications, and peer collaboration
Staying current in Project Planning & Scheduling requires ongoing professional development, reading industry publications, and collaborating with peers to share knowledge and best practices.
What is the most important competency assessed in Troubleshooting & Diagnostics for professionals in this field?
Answer: Applied knowledge and practical problem-solving ability
Troubleshooting & Diagnostics assessment focuses on applied knowledge and practical problem-solving ability, ensuring professionals can effectively perform in real-world situations.
What does a limited-slip differential (LSD) do compared to an open differential?
Answer: Transfers more torque to the wheel with better traction when slip is detected
An LSD uses clutch packs or a Torsen gear set to bias torque toward the wheel with more traction, improving performance on slippery or uneven surfaces.
Which best describes the scope of Troubleshooting & Diagnostics in professional practice?
Answer: A comprehensive area covering both theoretical foundations and practical applications
Troubleshooting & Diagnostics encompasses both theoretical foundations and practical applications that are essential to professional practice in this field.
Which best describes the scope of Electrical Systems & Wiring in professional practice?
Answer: A comprehensive area covering both theoretical foundations and practical applications
Electrical Systems & Wiring encompasses both theoretical foundations and practical applications that are essential to professional practice in this field.
Why is data security important when using professional technology tools?
Answer: To protect sensitive information from unauthorized access, breaches, and loss
Data security protects sensitive professional, client, and organizational information from unauthorized access, breaches, theft, and loss, maintaining trust and compliance.
Which type of fuel pump is used in modern high-pressure direct injection systems?
Answer: High-pressure mechanical pump driven by the camshaft
GDI systems use a cam-driven high-pressure mechanical pump to generate the 1,500–3,600 psi needed to inject fuel directly into the combustion chamber.
How does Troubleshooting & Diagnostics contribute to overall professional effectiveness?
Answer: It provides essential knowledge and skills that directly impact quality of work and outcomes
Troubleshooting & Diagnostics directly contributes to professional effectiveness by providing essential knowledge and skills that improve the quality of work and outcomes across all career levels.
What does the torque converter clutch (TCC) lockup do?
Answer: Creates a direct mechanical connection between engine and transmission to improve fuel efficiency
When locked, the TCC bypasses the fluid coupling and creates a direct mechanical link, eliminating slip and improving fuel economy at cruise speeds.
What is a key performance indicator (KPI) in quality management?
Answer: A measurable value that demonstrates how effectively objectives are being achieved
KPIs are quantifiable measurements that demonstrate how effectively an organization or process is achieving its key quality objectives.
What is the stoichiometric air-fuel ratio for gasoline engines?
Answer: 14.7:1
The stoichiometric air-fuel ratio for gasoline is 14.7:1, meaning 14.7 parts air to 1 part fuel for complete combustion.
What does a transmission solenoid do in an electronically controlled automatic transmission?
Answer: Convert electrical signals from the TCM into hydraulic actions that control gear changes
Transmission solenoids are electro-hydraulic valves that open and close hydraulic circuits on command from the TCM to engage specific clutch packs for each gear.
What should be the first action when a new regulation is enacted that affects your practice?
Answer: Review the regulation, assess its impact, and develop an implementation plan
When new regulations are enacted, professionals should promptly review them, assess their impact on current practices, and develop a structured implementation plan.
A brake drum must be replaced rather than resurfaced when it has:
Answer: Exceeded its maximum allowable inside diameter specification
Brake drums machined or worn beyond their maximum inside diameter specification lack sufficient metal mass to absorb and dissipate braking heat safely.
How does Electrical Systems & Wiring contribute to overall professional effectiveness?
Answer: It provides essential knowledge and skills that directly impact quality of work and outcomes
Electrical Systems & Wiring directly contributes to professional effectiveness by providing essential knowledge and skills that improve the quality of work and outcomes across all career levels.
What is the role of documentation in regulatory compliance?
Answer: It provides verifiable evidence that standards are being met
Documentation provides verifiable evidence that regulatory requirements are being met and creates an audit trail for compliance verification.