Four types of maintenance concept are corrective, preventive, risk- based and condition- based maintenance.
<u>Explanation:</u>
In corrective maintenance repair activities are carried out when a fault or slight defect is detected. This carried out by considering that the cost of repair will be lower than the expenses incurred when continuous maintenance approach is chosen.
In preventive maintenance approach , maintenance is carried out in definite intervals so as to reduced the risk of failure.
Risk based maintenance is carried out by integrating appropriate analysis and periodic test activities to the preventive maintenance approach. In condition bases maintenance the equipment performance is monitored and the corrective actions are controlled.
Answer:
Hypothetico-deductive model
Explanation:
Hypothetico-deductive model consists of taking some assertions as hypotheses and testing such hypotheses by deducing from them, together with the knowledge that we already have, conclusions that we confront with the facts.This model is applied to obtain predictions from a theory. If the assumptions are true, and the theory is true, deductive reasoning must necessarily reach true conclusions. In case the assumptions are true and the conclusion false, the theory must be false and must be rejected or revised, due to the principle of invalidity.
The correct answer is Luminous
Explanation: The mosaics have a very old origin. They were already called mosaics in Crete, Mesopotamia and, as we know, in Greece and Rome.
The Romans built the mosaics with small cubic pieces called tessela. The materials of these tesserae were limestone, stained glass, ceramic.
Paleo-Christian art, now able to enjoy greater financial bases and relegating fresco mural painting to the background, will seek to perfect the technique and will toast the interior of the church with intense and vibrant color images, possible by replacing marble with pieces of colored glass . However, this new material does not allow a complex palette of shades and the modeling of the figures loses their contact with the real world, the characters present themselves as transcendental, immaterial beings, inhabitants of a kingdom of light and gold.
<u>ANSWER:
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According to the constitution, a former Secretary of State who was born in Yugoslavia but is now a naturalized citizen could not be president of US.
Option (c)
<u>EXPLANATION:
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There are three criteria that must be satisfied to be eligible for becoming the 'President of the United States'. They are:
- He/she must be a natural-born citizen of the Unites States
- He/she must be at least 35 years old
- He/she must be a resident of the United States for at least 14 years.
Since in option (c) the former Secretary was born in Yugoslavia, he/she does not satisfy the first criteria. The other two options satisfy all the three criteria.