Yes, "PC" should be capitalized in a sentence.
Yes, when it is a proper noun -- the name of a Roman god, a planet, a city in Florida, and an early US missile system. There is currently no common noun for "jupiter."
No, "personnel" is not capitalized when used in a sentence unless it is at the beginning of the sentence or part of a title.
No, "line manager" is not capitalized when used in a sentence unless it begins the sentence.
No, the word "novel" does not have to be capitalized in every sentence. It should be capitalized only if it is the first word in a sentence or part of a title.
No, "customers" is not typically capitalized in a sentence unless it is at the beginning of a sentence or in a title.
Yes, PC would be capitalized.
Yes, when it is a proper noun -- the name of a Roman god, a planet, a city in Florida, and an early US missile system. There is currently no common noun for "jupiter."
Dodgeball is capitalized if it starts the sentence. But if dodgeball is used in the middle of a sentence it is not capitalized.
They are not proper nouns. They would not be capitalized in a sentence.
No, the word forecast should not be capitalized in a sentence.
No, "line manager" is not capitalized when used in a sentence unless it begins the sentence.
No, "personnel" is not capitalized when used in a sentence unless it is at the beginning of the sentence or part of a title.
No, the word "novel" does not have to be capitalized in every sentence. It should be capitalized only if it is the first word in a sentence or part of a title.
No, "customers" is not typically capitalized in a sentence unless it is at the beginning of a sentence or in a title.
No, "pretologist" is not typically capitalized in a sentence unless it is at the beginning of a sentence or part of a proper noun.
No, the word "fifteen" should not be capitalized in a date within a sentence unless it is the first word of the sentence.
No, "secondary students" should not be capitalized in the middle of a sentence unless it is a proper noun or at the beginning of a sentence.