What is a trench - Study guides, Class notes & Summaries

An optical fiber works based off of a principle known as; Total Internal Reflection. The bending of light as it passes from one transparent material into another which has a different refractive index is what? Refraction. Light is electromagnetic radiation in the wavelength range including visible, ultraviolet, X-rays and _______________. Infrared. What are the three parts of a typical optical fiber? Core, Cladding, buffer Coating. (3 C's) A simple fiber optic sy...

IFSTA 7th Edition - Chapter 8: Ground ladders with Complete SolutionsIFSTA 7th Edition - Chapter 8: Ground ladders with Complete SolutionsIFSTA 7th Edition - Chapter 8: Ground ladders with Complete Solutions The lowest, widest section of an extension ladder that always maintains contact with the ground while the ladder is being raised is the: (315) - ANSWER-Bed section Which part of a ladder is placed on the ground when the ladder is positioned? (315) - ANSWER-Butt The moveable upper pa...

The mission of the Occupational Safety and Health Administration (OSHA) is: To send every worker home whole and healthy every day Electricity travels in closed circuits, and its normal route is through a conductor. Electric shock occurs when: Your body becomes part of the circuit Workers need to take which of the following common-sense steps to protect themselves from falls through skylights and roof and floor openings? -- Never sit on, lean against, or step on a skylight lens o...

What are two US government agencies that are good resources for safety and health information? OSHA and NIOSH OSHA requires fall protection when working near the edge of a trench or excavation that is _________ or more in depth. 6 feet 3. Every supported scaffold and its components must support, without failure, its own weight and at least _______ the intended load. 4 times 4. During an OSHA inspection: You have the right to talk to the inspector privately 5. The ...

Mass hoisting license. Exam Questions and Answers Define load work radius? - CORRECT ANSWER-The area around a machine that should be barriicated because of the load or swing What are outriggers? - CORRECT ANSWER-Side extension that add Stability to the machine. How far back from the edges of a trench should the spoils to be pilled - CORRECT ANSWER-2feet Is it permissible to straddle a trench with a backhoe? why? - CORRECT ANSWER-No. It could cause cave ins What is a trench? - CORR...

The modern word for plumber is derived from the Latin word for - ANSWER-A person who works with lead LEED applies to all areas of the profession, except - ANSWER-Renovation Water that comes from laundry and bathtubs and reused in known as - ANSWER-Graywater Suggested national plumbing standards are called - ANSWER-Model codes You are offered a job by another contractor before you have fulfilled your current obligations. The professional response is to - ANSWER-Ask the contractor to w...

Az ROC Trade Exam B-3 License Correctly Solved Already Passed A+ Nails used for installing Hardboard panel siding vertically must accommodate the sheathing and penetrate the framing a minimum of how much? *ANS* 1-1/2 inches When framing openings in floors with a header and trimmer joists, what maximum header joist span is allowed with a single member header? *ANS* 4 feet Above the handrail and below the head, what is the minimum clear opening on a stairwell? *ANS* 36 inches When inst...

An attached garage shall be separated from all habitable rooms above the garage with not less than 5/8 of an inch gypsum board A structure that is intended for swimming or recreational bathing is considered to be a swimming pool if it contains water over 24 inches What type of fastener do you use to install cabinets? Truss head wood screws The process of preparing sand underneath a concrete slab requires sand to be Compacted Habitable space in a basement shall hav...

Massachusetts 2a Hoisting License Questions And Answers Latest Updated 2024/2025 | Scored A+. What is the purpose of the swing gear on an excavator: answer- It connects the car body to the tracks 2. Who is responisble for inspecting a trench before anyone goes in it: answer- The equipment operator 3. What is the prefered sling angle: answer- 60* 4. The top of the spoil pile is called: answer- The crown 5. A four footbdeep trench requires an additional ladder for each _ of open trench: ans...

Mass Hoisting Test Questions and Answers Already Passed What is the purpose of the swing gear on an excavator It connects the car body to the tracks Who is responsible for inspecting a trench before anyone goes in it The equipment operator What is the preferred sling angle of these angles? 60 degrees 45 degrees 30 degrees 60 degrees The top of the spoil pile is called Crown A four foot deep trench requires an additional ladder for every _______of open trench 25 feet Mate...