I would not hyphenate in this sentence: "I was put on light duty." Here "light" is an adjective modifying the noun "duty." I would use a hyphen when together they form an adjective: "I was given a light-duty job."
The adjective form for the noun duty is dutiful.
The one I own is light duty. The one I drive for work is heavy duty.
If your job is a light duty one then no. If it isn't yes.
The decision to offer light duty is a unilateral employer decision.
Depends on how long the light duty will continue.
nO
The custom duty to import LED light from China to Nepal is 5%.
The abstract noun form of the adjective obedient is obedience.
that is a light duty truck.
light duty , medium duty
If your primary employer does not have work for you and told you to stay out on workers comp until you can work full duty then you need to not work at another job while you are on workers comp.
Yes, there are light duty and medium duty garbage trucks.