The term 'full speed' is a compound noun made up of the adjective 'full' and the noun 'speed'.
A noun adjunct is a noun functioning as an adjective, for example highway speed or city speed. The words 'highway' and 'city' are both nouns describing the noun 'speed'.
The compound noun 'full speed' can function as a noun adjunct, for example, a full speed accident.
No, it is not. Speed can be a verb, or a noun meaning velocity. It can be a noun adjunct in terms such as the idiomatic "speed trap."
No, it is not. It is a noun (high-speed limited access road) and may be a noun adjunct in terms such as expressway speeds or expressway ramps.
No, it is a noun. It may be used with another noun as a noun adjunct.
No. Shutter is a noun (window cover) or a verb (to protect with a shutter, or to close).It can also mean the opening light cover inside a camera.When used with another noun (e.g. shutter speed), it is a noun adjunct.
No, daybreak is a noun. It is not used as an adjective, and rarely as a noun adjunct.
No, it is a noun. If it is used with another noun (e.g. helicopter pilot), it is a noun adjunct, not an adjective.
No, it is a noun. But it may be used as a noun adjunct in terms such as baseline studies.
No, it is a noun, and a noun adjunct. It is related to the adjective amused, and the verb to amuse.
No. Axle is always a noun. It can be used as a noun adjunct (axle grease).
No, it is not. The word sauce is a noun. Used with another noun (e.g. sauce ingredients), it is a noun adjunct.(It is widely an adjunct, as the adjective saucy actually means either impudent or stylishly bold.)
There is no adjective for the noun biscuit. The noun is often used as a noun adjunct (e.g. biscuit dough).
No, carrier is the noun form of the verb to carry. It may be used as a noun adjunct with another noun.