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Why do machines fail?
Machines fail due to various reasons; they may have been used for the wrong purposes or they may have been used for loads that exceed their design capacity, they can also fail after numerous usage due to fatigue or wear, manual operation of machines can also result in failure due to mishandling by operators. Engines and motors fail due to lubrication and electrical problems most of the times.
What is the cause of failure of foundation of a building?
The foundation of a building may fain in shear or due to excessive settlement. if the load on the foundation is more than the bearing capacity of soil or the settlement due to the load is more than tne allowable limit than the foundation is said to fail.
What is cascade tripping and how it happens?
cascade tripping or failure is a failure in a system of interconnected parts in which the failure of part can trigger the failure of successive part.it means that failure in one part of system may quickly spread into entire system . cascade tripping occurs for several reason -when component of grid is over stressed -generator shut down due to any reason -if transmission line has too much current following on it, and it will heat up and conductor fails -when tree are close to transmission line ,electric current from line will produce arc ,and circuit breaker disconnect line . -natural climate like earthquake ,heavy rain etc ,in which pole are fall down.
Where failure will occur in cotter joint?
When the axial loads(Tensile/Compressive) will rise above the strength of specially designed socket , spigot and cotter. The failure may be of anyone component or together.
Why does a new roof leak but not near a chimney or vent stack?
What's above it on the roof ? Water may be running down a joist for a bit. A new roof, properly felted and roofed shouldn't have any place for it to leak. Type of roof could make a difference, I'm assuming asphalt shingles. If possible, look in the attic to see if you can see a water stain around the leaking area.
How far can you span a 2x6 for a roof without compromising its structural integrity?
The maximum span for a 2x6 roof joist without compromising its structural integrity is typically around 9 feet. Beyond this span, additional support such as beams or columns may be needed to prevent sagging or failure.
Why does a tile roof creak at night?
A tile roof may creak at night due to temperature changes causing the tiles to expand and contract, or settling of the roof structure under the weight of the tiles. These noises are typically normal and do not indicate any structural issues with the roof.
What causes the failure of zoned earth filled dams?
Failure of these dams may be caused by, Overtopping Seepage Structural Erosion.
How can I add a roof to a deck?
To add a roof to a deck, you can hire a professional contractor to design and install a roof structure that is securely attached to the deck. This may involve building support posts, beams, and rafters to hold the roof in place. It is important to ensure that the roof is properly waterproofed and meets local building codes for safety and structural integrity.
What are the advantages and disadvantages of using skip sheathing in a roof construction?
Skip sheathing in roof construction involves leaving gaps between the roof decking boards. Advantages: Cost-effective as it requires less material. Allows for better ventilation and airflow in the attic space. Provides flexibility in roof design and can accommodate uneven surfaces. Disadvantages: Reduced structural integrity compared to solid sheathing. May not provide as much support for roofing materials. Increased risk of leaks and water damage due to gaps in the sheathing.
Does homeowner's insurance pay for a cracked water pipe?
It may if is a result of freezing due to power failure or storm. Not due to negligence or poor design.
What will happen to a stone if heated it for a long time and cooling it instantly?
If a stone is heated for a long time and then cooled instantly, it may crack or shatter due to thermal stress. The rapid change in temperature can cause uneven expansion and contraction within the stone, leading to structural failure.
What is the Structural difference between a 67 gto coupe and hardtop?
There may be a small amount of structural difference between the two. The 2 door post will have the post running to the roof while the hard top does not. The 2 door post has the window in the door framed and the hard top does not.
Can a house settle after 20 years and potentially cause structural issues?
Yes, a house can settle after 20 years, which may potentially cause structural issues due to shifting and uneven settling of the foundation.
How do buildings brake when they fall?
Buildings break when they fall due to a combination of structural elements failing, such as columns, beams, and connections, as well as the force of gravity causing the building to collapse. Failure may occur at weak points in the structure or from an overload of weight or stress, leading to progressive collapse or sudden failure. The specific mode of failure can vary based on the building's design, materials, and the circumstances of the collapse.
How much time do you have to file an insurance claim for property damage such as roof damage?
Usually a year, but the sooner the better. The policy may not cover it if you reported the claim late. If the roof is due to age, wear, tear or faulty construction the roof would not be covered anyway.
How do you know if you need to replace your roof?
SAGGING If you notice there are parts of your roof that sag, this can be a very bad sign. Sagging is generally a symptom of structural damage in your roof such as inadequate bracing, inadequate spacing or structural failure. If you notice sagging on your roof, you definitely need to contact a roofing professional ASAP. DETERIORATED FLASHING If you have any exposed flashing on your roof (such as around your chimney), check it when you inspect your roof. If there are any loose, cracked, or deteriorated sections, then those areas should be repaired. If you notice leakage or water stains in or around any of these joints, you may have a more severe problem, depending on how long the flashing has been leaking. Moisture can cause rot and if it has infiltrated your house, you may have structural roofing damage. MOISTURE Moisture is the enemy of houses made in North America as most have wooden frames and moisture can eventually lead to rot and structural damage. Check your attic for signs of moisture leaking in from your roof in the form of: mould, mildew or watermarks on the wood. TIME What type of roofing material do you have? What was its estimated lifespan when it was installed? If you have a roof that was installed over 20 years ago, chances are you may need a new roof. Look for aging warning signs such as curling, pitting, brittle, cracked, or chipped shingles. For asphalt shingles, also look for bald spots where granules may have worn off. If more than one third of your roof’s shingles look to be in bad shape, then you will definitely need a roof replacement. MISSING SHINGLES A few missing shingles don’t often mean a full roof replacement, but depending on how many are gone and where they were pulled from, it may mean severe damage to your roof. Any missing shingles are a warning sign, because it might mean that the wind has pulled up a great deal of your shingles (even if they are still in place), and may have let water in, potentially damaging the wood below. Look especially for missing shingles around roof valleys, as these are the areas where rain and snow collect as they slide off your roof. Missing shingles here will mean leaks and often, greater damage. If you notice any of these potential warning signs, or are unsure of whether you might have a problem, don’t hesitate to contact us today! Here at Professional Roofers we know that peace of mind is paramount, which is why we offer free estimates on any potential roofing damage you might have.
