Notes, summaries, assignments, exams, and problems for Vocational training

The transmission's mission: It is a set of organs formed by different mechanisms: the clutch, gearbox, differential, reducer group, etc. Its mission is to transmit the engine's rotation to the wheels, adapting it to the needs of the vehicle's driving conditions.

Objectives:

• Couple and uncouple the engine's rotation.
• Reduce or increase the engine's torque output.
• Transmit the output torque from the gearbox to the wheels through the transmission shafts, differentials, conical groups, and semi-shafts.

Resistances:

• Rolling resistance: (Caused by the vehicle's weight on the wheels, the type of terrain, the dimensions of the vehicle, and the tire's displacement).
• Air resistance: (Largely dependent on the vehicle's size, the speed of the vehicle, and the

Fabric Description and Techniques

This document describes fabric techniques.

Data Link Layer and Network Delimitation

The data link layer is based on data flow. It transmits data and uses key methods. It also uses the physical MDIO method and character account. It includes the insertion of special characters and bit insertion for code violation.

CRC16 and Error Correction

What is CRC16?

CRC16 is used to verify and correct errors. It is used for:

• No errors with odd bits.
• Bursty errors with a length of 16 or inferior.
• Very high bursty errors percentage of greater length.

MAC and Link Layer

Keys Exist When the MAC?

The link layer is divided into two sublayers:

• LLC (Logical Link Control): Performs functions typical of the data link layer.
• MAC (Medium Access

Verb "To Be" Forms

Am, are, is

Present Simple

Infinitive or add 's' / Use don't for negatives

Past Simple

Add -ed (or second column for irregular verbs) / S + didn't + infinitive / Did + subject + infinitive

Used for actions at a specific time, consecutive actions in the past, a short action interrupting a longer one, or describing past states.

Past Tense of "To Be"

Was/were

Passive Voice

Subject + to be + past participle (-ed or third column) + by + agent

• Present Simple: am/are/is + past participle
• Past Simple: was/were + past participle
• Present Continuous: am/are/is being + past participle
• Past Continuous: was/were being + past participle
• Present Perfect: have/has + been + past participle
• Modal: modal + be + past participle
• Future Simple: will be + past participle

Question

English Phonetics

Consonants

[t∫] = Change.
| [θ] = Thanks. | [ð] = Mother, Then.
| [∫] = She, Shine. | [dʒ] = George, gym, John. | [ʒ] = Television, pleasure. | [j] = Yes, York, Unit, University.

Past Tense Endings

/id/ if the verb ends in the sound /t/ or /d/: painted, contributed, depended, admitted.

/t/: stopped, crashed, stuffed, looked

/d/: if the verb ends in a vowel: called, bored, begged, alarmed, played, stunned, arrived.

Plural Endings

/iz/ (represented by “-es” in writing): buses /’bʌsiz/, buzzes /bʌziz/, crashes /’kræ∫iz/, languages /’læηgwidʒiz/, catches /’kæt∫iz/.

/s/: stops, books, pits.

/z/: cabs, cards, gags, knives /naivz/, jams, things, plays, ladies /leidiz/.

Other Sounds

/n/ = not, nephew, nun. /ŋ/... Continue reading "English Phonetics and Language Tips" »

Engine Cooling Systems: An Overview

The primary function of an engine cooling system is to maintain the engine within optimal temperature limits, preventing damage to components while maximizing combustion efficiency. Maintaining the correct operating temperature allows the engine to deliver peak performance. The system should enable the engine to reach its ideal temperature quickly and maintain it regardless of the ambient temperature. Insufficient temperature leads to poor fuel gasification and inadequate lubrication due to increased oil viscosity. Excessive temperature can stress cylinders, increase the risk of pre-ignition, and cause oil thinning and rapid degradation, potentially leading to deformation or galling.

Air Cooling

Air cooling... Continue reading "Engine Cooling Systems: Air vs. Water - Pros & Cons" »

Active Operations

NLA grant monies or partial availability multiplied by DLES bank's customers.

Other Services

Supplementary benefits are operations involving or leading active and passive entities multiplied by XLES. As customers, using the payment of commissions or not, also called neutral operations.

Active operations and some passive services are called banking products. The use of these products employs modern marketing techniques.

Account Opening (CC)

Accounts can be opened by individuals or legal entities, in national or foreign currency. The bank verifies the identity of the person opening the account and their legal capacity.

Legal Capacity

• Capacity to Act: Individuals over 18 years old in full possession of their powers.
• Minors: Parents or

Active Banking Operations

These operations involve banks lending resources to their clients. Clients undertake to return these resources plus the interest generated within the allotted time. These operations are reflected in a contract and supported by real or personal guarantees.

Common Active Operations

• Commercial bill discounting operations
• Loans
• Credits
• Bank guarantees

From a financial standpoint, active operations of credit institutions are classified into:

Classification by Term

• Short-term operations: Such as discounting operations, policy loans, etc. These are usually calculated using simple interest.
• Long-term operations: Such as loans in general. These are calculated using compound interest.

Personal Loans

These are granted after assessing the... Continue reading "Banking Active Operations and Personal Loans Explained" »

Prevention

Acting on the Source

• Appropriate facility design
• Siding with cabins or curtains
• Partial machine isolation
• Screens and faders
• Regular monitoring of transmission area and radiation intensity

Action on the Environment

• Anti-reflective wall coatings
• Control of temperature, humidity, and ventilation
• Avoid concentrating multiple sources in one environment
• Delineation and marking of danger areas

Acting on Work Organization

• Reduce exposure time based on danger level
• Authorize access only to permitted personnel

Acting on People

• Inform and educate workers
• Use appropriate safeguards (e.g., goggles, absorbent clothing)
• Risk-based health screenings

Workplace Radon, Thoron, and Radiation Exposure

• Underground mines and tourist caves
• Spas and indoor pools
• Tunnels and

Understanding DNS (Domain Name System)

DNS (Domain Name System) is a protocol that manages and maintains a distributed database of IP addresses and domain names.

Uses of DNS

• Resolution: Converts domain names to IP addresses using a host.
• Inverse Resolution: Converts IP addresses to hostnames.
• Mail Routing: Determines the mail server for a given domain.

Domain Name Space

The domain name space is a distributed database stored across multiple machines. It stores the correspondence between domain names and IP addresses in a hierarchical structure.

TLDs (Top Level Domains)

Top Level Domains are the first level of the DNS organization, forming an inverted tree structure. They store the descendants of the root DNS domain. Examples include generic TLDs (.com,... Continue reading "Understanding DNS: Domain Name System Explained" »

What is ESD?

ESD (Electrostatic Discharge) is the accumulation of electric charge on a surface. For a person to feel an ESD, it's necessary to accumulate 3000V of static electricity.

How to Prevent ESD

• Save all components in static-safe bags.
• Use grounded pads.
• Use grounded floor mats.
• Use an antistatic wrist strap when working with computers.

Types of Power Changes

• Total Blackout: Complete power outage.
• Partial Blackout: A reduction in voltage.
• Noise: Interference on the power line.
• Peak Voltage: A sudden, sharp increase in voltage.
• Overvoltage: A prolonged increase in voltage.

Material Safety Data Sheet (MSDS)

An MSDS is a document that provides information about material identification, hazardous components that can affect people's health, fire hazards,... Continue reading "ESD, Material Safety, Memory Types, and Workday Structure" »