Answer:
Welding, carpentry, masonry, construction worker, barber
Explanation:
Answer: The answer is D
D.In hydraulic systems, the operating temperatures must be kept between 170�F and 180°F
Explanation:
The operating temperature for hydraulic systems is 140°F and below. Anything above this temperature is too high and will reduce the useful life of hydraulic fluid.
Most often problems associated with hydraulic systems are caused by fluid contaminated with particulate matter.
The level of strategy which the software engineers would concern themselves with would be highly dependent on the nature of the case or situation.
<h3>What is a strategy?</h3>
A strategy can be defined as a set of guiding principles, procedures, actions, and decisions that a business organization or an individual combines, in order to achieve its aim, objectives and goals.
Basically, developing a strategy is essential because it helps to attract new customers and gives a competitive advantage over rivals in the industry.
<h3>The types of
strategy.</h3>
In Software engineering, there are different types of strategy used by software engineers and these include:
- Product management strategy
- Lifecycle process strategy
Furthermore, there are three (3) main <u>levels</u> of strategy in software engineering and these are:
- Business-level strategy
- Functional-level strategy
- Corporate-level strategy
In this scenario, the level of strategy which the software engineers present at the meeting would concern themselves with would be highly dependent on the nature of the case or situation.
Read more on strategy here: brainly.com/question/26064163
Answer:
A. N type impurities
B. P type impurities
Explanation:
A. The impurities contribute free electrons and changing the conducting property of the semi conductor. When a pentavalent impurities in a semi conductor( impurities with five valence electron) , the impurity atom replace some of the semi conductor atoms in the crystal structure where 4 of the valence electron would be involved in bonding of 4 neighbouring semiconductor while leaving the fifth electron to be free(negative charge carrier) which is available for detachment.
B. When a trivalence impurity is added to semiconductor, instead of excess electron, there will be excess hole created by crystals. Reason for this attribute is the trivalence atom will replace some tetra valence semiconductor atom, when three valence electrons of the 3 valence electrons of the trivalent impurity atom make bond with three neighbouring semiconductor which gives rise to lack of electron in the bond of the fourth neighbouring semiconductor which contribute a whole to the crystalline since trivalent impurity contribute excess holes to the crystal of semi conductor, this holes can accept electrons.
