it depends.
no
engine
Both statements are correct.
With a Class B license you can get a truck diving job such as driving a dump truck or garbage truck. You may also get a job such as a newspaper carrier.
Technician A is correct. A twelve point wrench is used to loosen bolts that are very tight.
The primary purpose of Class B driving license is passenger transport. Bus drivers are required hold Class B license. Another purpose of Class B drivers license is to deliver and pick-up items.
A, the half inch bolt has 13 rows of thread in one inch.
general use coarse thread bolt is correct. 1/2 inch bolt. 13 threads per inch.
Yes, it does. If your Class B job requires additional endorsements (such as hazmat, tanker, etc.), you must still have those endorsements on your Class A CDL in order to perform that work.
Career Builder is a good place to start. Going to that site and typing into the search field "Class B Driver" will lead you to jobs that need a Class B CDL for the job required.
Technician A is correct. Labor manuals show the average labor time a job should take. It is up to the individual shop to determine the labor rate.