Technician - Mechanical Jobs

Mechanics rather be technical to be able to learn about measurement, reading and interpreting drawings.

During their course, they get information about how to use tools, equipments and what are the norms for safety and quality of the job performed.

Normally mechanics work on maintenance, assembling, manufacturing and workshops.

They’re responsible to make sure that mechanical equipments do all tasks as designed.

Based on this, it’s necessary to assemble all the equipments level and squared, also they have to pay attention to bolts torque, cooling and lubrication systems and all the connections can’t be leaking.

Highly skilled mechanics are trained for fine adjustment and also receive training in hydraulic equipment, laser alignment machine and hydraulic torque machine.

The common tools that mechanics work with are: wrench, hummer, measuring tape, square, etc.

By Ricardo Mota

Valentine's Day

Saint Valentine's Day, often simply Valentine's Day, is a holiday observed on February 14 honoring one or more early Christian martyrs named Valentinus. It was first established byPope Gelasius I in 496 AD, and was later deleted from the General Roman Calendar of saints in 1969 by Pope Paul VI. It is celebrated in countries around the world, mostly in the West, although it remains a working day in all of them.

The day first became associated with romantic love in the circle of Geoffrey Chaucer in the High Middle Ages, when the tradition of courtly love flourished. By the 15th century, it had evolved into an occasion in which lovers expressed their love for each other by presenting flowers, offering confectionery, and sending greeting cards (known as "valentines").

Modern Valentine's Day symbols include the heart-shaped outline, doves, and the figure of the winged Cupid. Since the 19th century, handwritten valentines have given way to mass-produced greeting cards. 

mechanical engineering

The branch of engineering that encompasses the generation and application of heat and mechanical power and the design, production, and use of machines and tools.One of several recognized fields of engineering. To grasp the meaning of mechanical engineering, it is desirable to take a close look at what engineering really is. The Engineers' Council for Professional Development has defined engineering as the profession in which a knowledge of the mathematical and physical sciences gained by study, experience, and practice is applied with judgment to develop ways to utilize economically the materials and forces of nature for the progressive well-being of mankind. It is a profession in which study in mathematics and science is blended with experience and judgment for the production of useful things.Formal training of a mechanical engineer includes mastery of mathematics through the level of differential equations. Training in physical science embraces chemistry, physics, mechanics of materials, fluid mechanics, thermodynamics, statics, and dynamics.

Mechanical engineers design and build engines and power plants...

...structures and vehicles of all sizes.

Mechanical engineering is a discipline of engineering that applies the principles of physics and materials science for analysis, design, manufacturing, and maintenance of mechanical systems. It is the branch of engineering that involves the production and usage of heat and mechanical power for the design, production, and operation of machines and tools.^[1] It is one of the oldest and broadest engineering disciplines.
The engineering field requires an understanding of core concepts including mechanics, kinematics, thermodynamics, materials science, and structural analysis. Mechanical engineers use these core principles along with tools like computer-aided engineering and product lifecycle management to design and analyze manufacturing plants, industrial equipment and machinery, heating and cooling systems, transport systems, aircraft, watercraft, robotics, medical devices and more.
Mechanical engineering emerged as a field during the industrial revolution in Europe in the 18th century; however, its development can be traced back several thousand years around the world. Mechanical engineering science emerged in the 19th century as a result of developments in the field of physics. The field has continually evolved to incorporate advancements in technology, and mechanical engineers today are pursuing developments in such fields as composites, mechatronics, and nanotechnology. Mechanical engineering overlaps with aerospace engineering, building services engineering, civil engineering, electrical engineering, petroleum engineering, and chemical engineering to varying amounts.

Tag Questions

You speak English, don't you?

A tag question is a special construction in English. It is a statement followed by a mini-question. The whole sentence is a "tag question", and the mini-question at the end is called a "question tag".

A "tag" is something small that we add to something larger. For example, the little piece of cloth added to a shirt showing size or washing instructions is a tag.

We use tag questions at the end of statements to ask for confirmation. They mean something like: "Am I right?" or "Do you agree?" They are very common in English.
The basic structure is:

+ Positive statement,	- negative tag?
Snow is white,	isn't it?
- Negative statement,	+ positive tag?
You don't like me,	do you?

Look at these examples with positive statements:

positive statement [+]				negative tag [-]			notes:
subject	auxiliary	main verb		auxiliary	not	personal pronoun (same as subject)
You	are	coming,		are	n't	you?
We	have	finished,		have	n't	we?
You	do	like	coffee,	do	n't	you?
You		like	coffee,	do	n't	you?	You (do) like...
They	will	help,		wo	n't	they?	won't = will not
I	can	come,		can	't	I?
We	must	go,		must	n't	we?
He	should	try	harder,	should	n't	he?
You		are	English,	are	n't	you?	no auxiliary for main verb be present & past
John		was	there,	was	n't	he?

Look at these examples with negative statements:

negative statement [-]						positive tag [+]
subject	auxiliary		main verb			auxiliary	personal pronoun (same as subject)
It	is	n't	raining,			is	it?
We	have	never	seen		that,	have	we?
You	do	n't	like		coffee,	do	you?
They	will	not	help,			will	they?
They	wo	n't	report		us,	will	they?
I	can	never	do		it right,	can	I?
We	must	n't	tell		her,	must	we?
He	should	n't	drive		so fast,	should	he?
You			are	n't	English,	are	you?
John			was	not	there,	was	he?

Some special cases:

I am right, aren't I?	aren't I (not amn't I)
You have to go, don't you?	you (do) have to go...
I have been answering, haven't I?	use first auxiliary
Nothing came in the post, did it?	treat statements with nothing, nobody etc like negative statements
Let's go, shall we?	let's = let us
He'd better do it, hadn't he?	he had better (no auxiliary)

Here are some mixed examples:

• But you don't really love her, do you?
• This will work, won't it?
• Well, I couldn't help it, could I?
• But you'll tell me if she calls, won't you?
• We'd never have known, would we?
• The weather's bad, isn't it?
• You won't be late, will you?
• Nobody knows, do they?

Notice that we often use tag questions to ask for information or help, starting with a negative statement. This is quite a friendly/polite way of making a request. For example, instead of saying "Where is the police station?" (not very polite), or "Do you know where the police station is?" (slightly more polite), we could say: "You wouldn't know where the police station is, would you?" Here are some more examples:

• You don't know of any good jobs, do you?
• You couldn't help me with my homework, could you?
• You haven't got $10 to lend me, have you?

Intonation

We can change the meaning of a tag question with the musical pitch of our voice. With rising intonation, it sounds like a real question. But if our intonation falls, it sounds more like a statement that doesn't require a real answer:

	intonation
You don't know where my wallet is,	do you?	/ rising	real question
It's a beautiful view,	isn't it?	\ falling	not a real question

Answers to tag questions

A question tag is the "mini-question" at the end. A tag question is the whole sentence.

How do we answer a tag question? Often, we just say Yes or No. Sometimes we may repeat the tag and reverse it (..., do they? Yes, they do). Be very careful about answering tag questions. In some languages, an oposite system of answering is used, and non-native English speakers sometimes answer in the wrong way. This can lead to a lot of confusion!

Answer a tag question according to the truth of the situation. Your answer reflects the real facts, not (necessarily) the question.

For example, everyone knows that snow is white. Look at these questions, and the correct answers:

tag question	correct answer
Snow is white, isn't it?	Yes (it is).	the answer is the same in both cases - because snow IS WHITE!	but notice the change of stress when the answerer does not agree with the questioner
Snow isn't white, is it?	Yes it is!
Snow is black, isn't it?	No it isn't!	the answer is the same in both cases - because snow IS NOT BLACK!
Snow isn't black, is it?	No (it isn't).

In some languages, people answer a question like "Snow isn't black, is it?" with "Yes" (meaning "Yes, I agree with you"). This is the wrong answer in English!
Here are some more examples, with correct answers:

• The moon goes round the earth, doesn't it? Yes, it does.
• The earth is bigger than the moon, isn't it? Yes.
• The earth is bigger than the sun, isn't it? No, it isn't!
• Asian people don't like rice, do they? Yes, they do!
• Elephants live in Europe, don't they? No, they don't!
• Men don't have babies, do they? No.
• The English alphabet doesn't have 40 letters, does it? No, it doesn't.

Question tags with imperatives

Sometimes we use question tags with imperatives (invitations, orders), but the sentence remains an imperative and does not require a direct answer. We use won't for invitations. We use can, can't, will, would for orders.

	imperative + question tag	notes:
invitation	Take a seat, won't you?	polite
order	Help me, can you?	quite friendly
	Help me, can't you?	quite friendly (some irritation?)
	Close the door, would you?	quite polite
	Do it now, will you?	less polite
	Don't forget, will you?	with negative imperatives only will is possible

Same-way question tags

Although the basic structure of tag questions is positive-negative or negative-positive, it is sometime possible to use a positive-positive or negative-negative structure. We use same-way question tags to express interest, surprise, anger etc, and not to make real questions.

• So you're having a baby, are you? That's wonderful!
• She wants to marry him, does she? Some chance!
• So you think that's amusing, do you? Think again.

Negative-negative tag questions usually sound rather hostile:

• So you don't like my looks, don't you?