What is the problem of rehabilitation MCQS?

Explanation: The problem of rehabilitation is Unique, For the particular structure and hence the use of common techniques for rehabilitation of various structures is limited and as far as maintenance is concerned, several new cementations materials and epoxy resigns and compounds have been developed which are highly ...

What is the problem of rehabilitation Examveda?

Solution(By Examveda Team)

Several new cementations materials and epoxy resigns and compounds have been developed which are highly effective in protecting the basic structure from the destructive effects of severe exposure conditions in the environment.

What is the main advantage of composite member?

Explanation: The main advantage of composite member is it facilitates the ease of work at the construction site and it is the fast approaching process by utilizing the self supporting precast stems the shuttering can be minimized.

Which grade of structural steel is suitable for bonded reinforcing plates?

Explanation: Generally any grade of structural steel is suitable for bonded reinforcing plates and plate gauges below 3mm are not suitable because sand blasting can deform them and steel plates between 6-16mm thick were used in some strengthening works.

What is the problem of rehabilitation *?

Explanation: The problem of rehabilitation is Unique, For the particular structure and hence the use of common techniques for rehabilitation of various structures is limited and as far as maintenance is concerned, several new cementations materials and epoxy resigns and compounds have been developed which are highly ...

5 Rules (and One Secret Weapon) for Acing Multiple Choice Tests

What is bonded steel?

Bonded steel plate reinforcement is use high-performance epoxy adhesive bonded to the surface of concrete components, steel and concrete to form a unified whole, to achieve good tensile strength to enhance the bearing capacity and rigidity.

What are the limitation of composites?

Composites have disadvantages such as high raw material costs and, in most cases, high fabrication and assembly costs, poor strength in the out-of-plane direction where the matrix carries the primary load, susceptibility to impact damage, and greater difficulty in repairing them when compared to metallic structures.

What are the disadvantages and limitations of composites?

Composites are more brittle than wrought metals and thus are more easily damaged. Cast metals also tend to be brittle. 2. Repair introduces new problems, for the following reasons: Materials require refrigerated transport and storage and have limited shelf lives.

How are composites different in structure than metals?

Composites are durable.

Composites have less fracture toughness than metals but more than most polymers. Their high dimensional stability allows them to maintain their shape, whether hot or cold, wet or dry. This makes them a popular material for outdoor structures like wind turbine blades.

What are the objectives of rehabilitation?

What is rehabilitation structure?

Rehabilitation is the process of restoring the structure to service level, once it had and now lost, strengthening consists in endowing the structure with a service level, higher than that initially planned by modifying the structure not necessarily damaged structure.

How many types of damages are present in classification of damage Mcq?

There are three types of damages present. These are minor damage, moderate damage and several damage.

What is difference between alloy and composites?

An Alloy is a mixture of one or more metals with other elements. Composites are also a mixture of two or more elements, but it does not contain metals. An alloy can either be a homogeneous or a heterogeneous mixture. A composite is always a heterogeneous mixture.

What is carbon fibre?

Carbon fibers or carbon fibres are fibers about 5–10 micrometres in diameter and composed mostly of carbon atoms. Carbon fibers have several advantages including high stiffness, high tensile strength, low weight, high chemical resistance, high temperature tolerance and low thermal expansion.

Why do composites have low density?

A low-density composite is a material that is able to trap more moisture and hold more water than high-density composites. The reason is that low-density composites have more voids, porosities, and spaces within the composites' components.

What are advantages/disadvantages and limitations of composites?

Composites are more brittle than wrought metals and thus are more easily damaged. Cast metals also tend to be brittle. 2. Repair introduces new problems, for the following reasons: Materials require refrigerated transport and storage and have limited shelf lives. .

What are the disadvantages of Specialised materials?

What are the disadvantages of composite fillings?

What is a particulate composite?

A particulate composite is characterized as being composed of particles suspended in a matrix. Particles can have virtually any shape, size or configuration. Examples of well-known particulate composites are concrete and particle board. There are two subclasses of particulates: flake and filled/skeletal: Flake.

How are metal matrix composites made?

Metal Matrix Composites (MMCs) are materials produced by adding reinforcement in the form of particles (ceramic or metal), fibers, whiskers or even a sheet metal to a metal or alloy matrix.

What is matrix in composite materials?

The matrix is basically a homogeneous and monolithic material in which a fiber system of a composite is embedded. It is completely continuous. The matrix provides a medium for binding and holding reinforcements together into a solid.

What is a copper bond?

Direct Copper Bonding (DBC) is the direct mating of two dissimilar electronic materials (Copper and Ceramic). The interface between the pure copper and the ceramic is very reliable.

How do you glue brass?

Cyanoacrylate, also known as instant adhesive, is the super glue for metal to metal bonding. Cyanoacrylate adhesives is suitable for most metals as long as they are reactive. Therefore, the super glue for metal works better on brass and copper than on steel.

Can you glue metal?

Epoxies, polyurethane and cyanoacrylate based adhesives will all work well for gluing metal to metal, although an epoxy is probably the most versatile, if you're looking for a strong, weather-resistant solution.

What is brass made of?

Brass is composed of copper and zinc, whereas bronze is made up of copper and tin, sometimes with other elements such as phosphorus or aluminium added in. Brass is believed to have been used since around 500BC, mostly for decorative purposes.