subject
Engineering, 17.11.2020 21:10 meramera50

Two employees were installing aluminum siding on a farmhouse when it became necessary to remove a 36-foot high metal pole CB antenna. One employee stood
on a metal pick board between two ladders and unfastened the antenna at the top
of the house. The other employee, who was standing on the ground, took the
antenna to lay it down in the yard. The antenna made electrical contact with a
7200-volt power transmission line 30 feet 10 inches from the house and 23 feet 9
inches above the ground. The employee handling the antenna received a fatal
shock and the other employee a minor shock. What precautions might have
prevented this accident?
Select the 4 answer options that apply.

1) Ensure you have training on the hazards of working close to power lines.

2) another worker should have help with carrying the antenna.

3) Guard all electrical power circuits against accidental contact by insulating the circuit or de-energizing it.

4) The metal pick board shouldn’t have been used.

5) Do not work near any part of an electrical power circuit which might be contacted in the course of the work.

ansver
Answers: 2

Other questions on the subject: Engineering

image
Engineering, 04.07.2019 18:10, yasminothman02
An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet
Answers: 3
image
Engineering, 04.07.2019 18:10, alyssabailey7545
Give heat transfer applications for the following, (i) gas turbines (propulsion) ) gas turbines (power generation). (iii) steam turbines. (iv) combined heat and power (chp). (v) automotive engines
Answers: 1
image
Engineering, 04.07.2019 19:10, Mimidj9279
The sum of the normal stresses does not change as the stress state rotates through an angle. a)-trune b)- false
Answers: 2
image
Engineering, 04.07.2019 19:20, anggar20
Air enters a horizontal, constant-diameter heating duct operating at steady state at 290 k, 1 bar, with a volumetric flow rate of 0.25 m°/s, and exits at 325 k, 0.95 bar. the flow area is 0.04 m2. assuming the ideal gas model with k = 1.4 for the air, determine (a) the velocity at the inlet and exit, each in m/s, and (c) the rate of heat transfer, in kw flow rate, in kg/s, (b) the mass kg 0.3
Answers: 2
You know the right answer?
Two employees were installing aluminum siding on a farmhouse when it became necessary to remove a 3...

Questions in other subjects:

Konu
Biology, 01.09.2019 23:30