Which agency within the DOT is responsible for developing and enforcing safety requirements for buses and large
trucks?
ОСАВ
This is conducted by the DOT but not by any specific agency.
FMCSA
FAA

FMCSA

Explanation: FMCSA (otherwise known as Federal Motor Carrier Safety Administration) is responsible for reducing mainly the injures and fatalities caused by crashes involving large trucks and buses.

there is no poster. if you add a poster then we can answer.

the use of “as” in the example to draw the resemblance. some more examples of common similes are given below. common examples of simile. our soldiers are as brave as lions. her cheeks are red like a rose. he is as funny as a monkey. the water well was as dry as a bone. he is as cunning as a fox. simile introduces vividness into what we say.