Study specimens P ( Electric bulb) , Q (Garden fork), R (Hand trowel ) and S (knapsack sprayer) carefully and answer the following questions.

(a) State two uses each of specimens P, Q, and R.

(b) Mention three problems that may result from a poorly maintained specimen S.

(c) List three protective devices that should be worn by a farmer when using specimen S.

(d) State three precautions that should be taken when using specimens S.