Qualifications necessary for vocational training instructors

social backgrounds:
By the recent rapid advancement of the technological innovations and changes in industrial organizations, the vocational abilities that workers require are changing; accordingly, needs are further diversified in the human resources development and the abilities they are required to exhibit.
what is the arrangement being done by the vocational higher institutions in regard to this changes?

conditions required for instructors:
Enthusiasm and leadership are the most important pre-requisites for instructors in improving and developing vocational training.
How will they achieve this quality?
Instructors of course play the most important role in determining outcome of vocational training.
Therefore it is very important to improve the ability and leadership of instructors.
In what conditions should instructors be improve and when?

1. To have technical knowledge and skills:
Instructors should have extensive technological knowledge and outstanding skills in their areas of specialty and related jobs.
Instructors should also have practical experience at the work locations relating to training.

2. To understand teaching methods:
Instructors must have the ability to impact their knowledge and skills effectively, outstanding instructors should include having extensive knowledge and skills, having a real interest in teaching and having teaching skills.

3. Ability to encourage trainees to have the attitude of industrialist:
Giving the awareness, perseverance and energy so that they can continue with training calender.

4. To have that sense of mission and general culture:
Instructors should understand the significance and objectives of vocational training and recognize the importance and mission of vocational training and they should also be clearly aware of their responsibilities and occupational duties as required.
Why should the vocational training authorities not shoulder this task and begin doing what is wanted of vocational training instructor right up now?

Builders' Plant and Equipment

In one of the text ( builders' planta and equipment),;By Title:Conveyors, Elevators and Hoists:
I do not understand why the author refer readers to the contract of the Nuclear power station which has taken very years, where the readers may not imaged how it was designed and constructed.
I am suggesting that technological textbooks should not refer readers very many years back, because the technology is hourly changing.
The developing nations are confused in joining the industrialized nations due to such references.
I read about the hoists in this textbook, that they are lifts that can carry materials to the height of hundreds of meters into the air.It is also considered to be supplementary lifting machine to tower crane. but without the scaffolds,hoist construction seem to be difficult to operate, yet the discription of the quality of materials for the scaffolds reconstruction for this hoist is not mentioned.
What clearification shall address my contradition or misunderstanding?
Who shall address this doubts and post to me some examples of such transporting plant?