1.
Shoring in trenches is required for safety at what depth or below?
Correct Answer
B. 5 feet
Explanation
5 feet OSHA standard
2.
When visiting a site with a Level I, Class II hazard, you should first consult
Correct Answer
C. National Electric Safety Code (NESC)
Explanation
When visiting a site with a Level I, Class II hazard, the National Electric Safety Code (NESC) should be consulted. The NESC provides guidelines and regulations for the safe installation, operation, and maintenance of electric supply and communication lines. It specifically addresses safety measures for electrical hazards, including those associated with Level I, Class II hazards. The NEC focuses on electrical installations within buildings, while the UBC and Los Angeles Building Code pertain to general building construction and safety regulations. Therefore, the NESC is the most relevant code to consult in this scenario.
3.
If 25 ton crane is required to lift and set a three section manhole, when would you use a 60 ton crane:
Correct Answer
D. If you can only access it from one side
Explanation
A 60 ton crane has a longer boom and has better stability and can reach further away. Again it is one of those things that I asked a civil engineer in the Department. Giving the question and how it is worded, this is the best answer.
4.
You need to obtain a city permit for work at the following locations?
Correct Answer
C. Any work done in general office buildings
Explanation
You only need a permit for non utility work. Utility is generation, control, and delivery. Everything else needs a permit.
5.
If a seal is needed in a conduit in a class I Hazardous location, it
Correct Answer
D. Melting point is not less than 93O
Explanation
NESC article 501 class I locations. It needs to withstand corrosion too. The 93 degrees are mentioned in the code.
Class I locations are those in which flammable gases or vapors are (or may be) present in sufficient quantities to produce explosive or ignitable mixtures.
6.
Two transformers A&B are paralleled on the primary and secondary side. An Electircal worker pulls out the fuses on the primary lines of the transformer B. Which part is considered dead?
Correct Answer
D. None of the above
Explanation
When the fuses on the primary lines of transformer B are pulled out, it means that there is no power supply to the primary side of transformer B. However, transformer A is still connected and functioning properly. Therefore, the primary on A is not considered dead. Similarly, the secondary on transformer B and the lead lines between the fuses and the primary on transformer B are also not considered dead because they are still connected to transformer A, which is still operational. Hence, the correct answer is "None of the above".
7.
Work on energized underground 5kV is prohibited for safety only under the following conditions
Correct Answer
D. Work is never prohibited on an energized line
Explanation
The correct answer is that work is never prohibited on an energized line. This means that regardless of the circumstances or conditions, it is always allowed to perform work on an energized underground 5kV line. This may be due to the fact that the necessary safety measures and precautions have been put in place to ensure the safety of the workers. It is important to note, however, that working on energized lines can be dangerous and should only be done by trained professionals who follow proper safety protocols.
8.
In a large rotating motor the DC winding should be grounded to the frame for at least 10 minutes prioir to measuring the rotor resistance with a megaohmeter to avoid?
Correct Answer
A. Injury to the employee
Explanation
In a large rotating motor, grounding the DC winding to the frame for at least 10 minutes prior to measuring the rotor resistance with a megaohmmeter is done to eliminate the possibility of any stored charge in the rotor. This is important to avoid injury to the employee who is conducting the measurement. If there is a stored charge in the rotor, it can pose a risk of electric shock when the resistance is measured. By grounding the DC winding, any stored charge is discharged, ensuring the safety of the employee during the measurement process.
9.
The primary of a current transformer is energized. Why do you short circuit the secondary before servicing it?
Correct Answer
B. To ensure safety to personnel
Explanation
To ensure safety to personnel, the secondary of a current transformer should be short-circuited before servicing it. This is because when the primary is energized, there is a small induced flux that can cause high voltage in the secondary. By short-circuiting the secondary, any potential high voltage is safely discharged, minimizing the risk of electrical shock or harm to the personnel working on the transformer.
10.
You are using a 16 foot ladder. The ladders is supported 2 feet down from the top of the ladder. How far out do you place the pedestal of the ladder from the point of support?
Correct Answer
C. 3.5
Explanation
(16-2)/4=14/7 =3.5 (1/4th rule per OSHA)
11.
What should the supervisor's attitude toward safety be?
Correct Answer
A. Mandatory
Explanation
The supervisor's attitude toward safety should be mandatory, meaning that it is required and non-negotiable. This implies that the supervisor should prioritize safety measures and ensure that they are followed by all employees. It is their responsibility to enforce safety protocols and create a safe working environment.
12.
How does a supervisor keep employees interested in safety?
Correct Answer
B. By taking an active interest in each employee and frequently reminding them about importance of safety
Explanation
A supervisor can keep employees interested in safety by taking an active interest in each employee and frequently reminding them about the importance of safety. This approach shows that the supervisor cares about the well-being of the employees and creates a culture of safety awareness. By consistently reminding employees about safety, the supervisor reinforces the importance of following safety protocols and encourages employees to prioritize safety in their daily tasks. This proactive approach helps to maintain a safe working environment and ensures that employees remain engaged and focused on safety practices.
13.
What is IIPP
Correct Answer
C. Illness and Injury Prevention Program
Explanation
The correct answer is "Illness and Injury Prevention Program." This program focuses on preventing illnesses and injuries by implementing measures and protocols that promote health and safety in various settings. It aims to reduce the risk of accidents, injuries, and illnesses through education, training, and awareness campaigns. The program may include strategies such as workplace safety protocols, health promotion initiatives, and community outreach programs to ensure the well-being and protection of individuals.
14.
What does a work plan not include
Correct Answer
D. The time the project will take
Explanation
A work plan does not include the time the project will take. A work plan typically outlines the plan of action to be followed, potential hazards and ways to eliminate or protect against them, and the use of special tools or equipment. However, it does not provide information on the duration or timeline of the project.
15.
What is a work plan
Correct Answer
A. A briefing that includes use of equipment, assignments, plan of action, identification of hazards and how to avoid them
Explanation
A work plan is a briefing that includes various components such as the use of equipment, assignments, plan of action, identification of hazards, and how to avoid them. This explanation highlights the comprehensive nature of a work plan, which goes beyond just general safety guidelines or the safety budget. It emphasizes the importance of providing a detailed briefing to ensure that everyone involved in a job site is aware of the equipment to be used, their assigned tasks, the overall plan of action, and the potential hazards and ways to mitigate them.
16.
What does ppe stand for?
Correct Answer
A. Personal protection equipment
Explanation
The acronym PPE stands for Personal Protection Equipment. This refers to the equipment or gear that individuals wear to protect themselves from potential hazards or risks in their work environment. PPE includes items such as helmets, gloves, masks, goggles, and protective clothing. It is essential for ensuring the safety and well-being of individuals in various industries, such as construction, healthcare, and manufacturing.
17.
Which one do you like?
Correct Answer
A. Option 1