Need this is more than 1 answer .

a journeyman electrician with 16 years experience on-the-job was removing metal fish tape from a hole at the base of a metal light pole. it was raining during the course of the work. the fish tape became energized, electrocuting him. what could have been done to prevent this accident? select all that apply.

a. ensure all circuits are de-energized before beginning work.

b. this type of work shouldn't have been conducted in the rain.

c. deactivated controls during the course of work on energized or de-energized equipment or tag circuits.

d. the employee should have been trained to recognize and avoid unsafe conditions associated with his work.

Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.

Which of the following components of a pid controlled accumulates the error over time and responds to system error after the error has been accumulated? a)- proportional b)- derivative c)- integral d)- on/off.

Which of the following refers to refers to how well the control system responds to sudden changes in the system. a)-transient regulation b)- distributed regulation c)-constant regulation d)-steady-state regulation