TML

Which Hybrid utilize reinforcing material that is woven from two or more different fibers?. Interply hybrid. Selective placernent. Intraply Hybrids. The type of fibers used, the bonding materials used, and how the part is engineered to take specific stresses.

The warp direction is designated at?. 90 degrees. The type of fibers used, the bonding materials used, and how the part is engineered to take specific stresses. 45 degree angle to the fill threads. 0 degrees.

Which material is added to resins to control viscosity and weight, to increase pot life?. Weft (fill) 90 degrees. Catalyst. Fillers. Resin.

Is a plastic coating which serves as an additional moisture barrier.?. Leather. That they can be repaired in the same way as the older fiberglass structures. Tedlar. Lay up.

A tightly woven edge produced by the weaver to prevent the edges from raveling is referred to as.?. Usually a layer of fiberglass is used as a barrier, and the aluminum is anodized, primed, and painted prior to assembly. The selvage edge. Bias 45 degrees. Weft (fill) 90 degrees.

Which machine performs the following functions: applies atmospheric pressure, applies heat and perform the "ramp and soak"?. Heat guns. Hot patch bonding. Resin rich. Heat guns.

The central member of an assembly is called?. Reinforcing material. Matrix material. Hybrids. Core material.

The aircraft structural grade of Kevlar fiber is known as?. Remove excess resin. Kevlar 49. Kevlar 39. Kevlar 59.

A manufacturer can design a part by using different types of fiber combinations to tailor a part for strength or to reduce cost?. Hybrids. Interply. Adobe. Mats.

Is the curing agent used on epoxy resins?. Pressure. Catalyst. Heat. Unidirectional.

Carbon/graphite fiber composites are used to fabricate primary structural components such as?. The ribs and skin surface of the elevator. Is a corrosive when bonded to aluminum. The ribs and skin surface of the wing. The ribs and skin surface of the rudder.

The strength and stiffness of a composite buildup depends on. The orientation of the plies to the fiber direction. The orientation of the plies to the load direction. The orientation of the fibers to the load direction. Is a corrosive when bonded to aluminum.

When were introduced the epoxy resins?. Matrix or resins. In 1950 with fiberglass reinforcing materials. In 1950 with carbon reinforcing materials. In 1950 with aramid reinforcing materials.

Which of the following is a characteristic of carbon/Graphite?. Is a corrosive when bonded to aluminum. Where a high-temperature application is needed. Is less brittle than Kevlar. Is usually yellow color.

Fiber orientation in which all of the major fibers run in one direction, giving strength in that direction are known as?. Bidirectional. Multidirectional. Unidirectional. A matrix and reinforcement material.

What is the minimum distance a heating blanket must have in a repair?. None of the above. 3. 2. 1.

What should be worn while working with composite resin in order to protect the skin?. Rubber gloves and Shop coats. Fabric gloves. A matrix and reinforcement material. Leather gloves.

The strength of the composite depends on. The type of fibers used, and how the part is engineered to take specific stresses. Thermoplastic. The type of fibers used, the bonding materials used, and how the part is engineered to take specific stresses. The type of fibers used, the bonding materials used, and how the part is engineered to take specific damage.

The big difference between composites and aluminum lies in?. Resin rich. Fabrication time. Material cots. The Assembly time.

If too much resin is used, the part is called?. The ribs and skin surface of the wing. Too rich. Resin rich. Much resin.

Use heat to form and set the shape of the part permanent y?. Plastic. Matrix or resins. Thermoplastic. Thermosets.

How much is the vacuum in a repair?. 23Hgin. 20Hgin. 18Hgin. 22Hgin.

What was the fitst mllitaty aircraft with an all composite wing. Pot life or working life. The AV-9C, known as the Harrier,. The AV-9C, known as the Harrier,. The AV-8B, known as the Harrier,.

Pre-preg fabrics are manufactured to?. Eliminate the mixing, applying and worry about whether the proper mix ratio was used or if the proper amount of catalyst was applied. Usually a layer of fiberglass is used as a barrier, and the aluminum is anodized, primed, and painted prior to assembly. Eliminate the mixing, applying and worry about whether the proper mix ratio was used or if the proper amount of resin was applied. Eliminate the work, applying and worry about whether the proper mix ratio was used.

The reasons for the increasing use of composites are very simple. The greatest advantage is. The AV-8B, known as the Harrier. The high strength-to rich ratio. The high strength-to cost ratio. The high strength-to weight ratio.

Which threads are the threads which interweave with the warp threads?. In 1950 with fiberglass reinforcing materials. Bias 45 degrees. The warp 0 degrees. Weft (fill) 90 degrees.

What aspects must be considered when a composite component is designed?. Rivet type, weave and positioning of the fabric patches. Fabric type, preg preg B and positioning of the fabric patches. Two elements. Fabric type, weave and positioning of the fabric patches.

Which of the following is the manufacturing process that uses a male and female mold. Filament Winding. Vacuum Bagging. Compression Molding. Boeing.

Who was the first to use NOMEX honeycomb on their airplanes?. When combined with a matrix, the reinforcing fibers. Embraer. Boeing. Airbus.

The correct amount of fiber to resin ratio is important to get the desired strength. In advanced composite work, a 50:50 ratio is good. What fiber to resin ratio is better?. 40:60. 40:50. 60:40. 20:80.

The most simple composite is composed of the two following elements?. Reinforcement material and fabric. Interply hybrid. A matrix and reinforcement material. A matrix and resins.

What is breather material i?. Placed to one side of the repair to allow air to flow through it and up through the vacuum valve. are small spheres of plastic or glass. Placed to upper of the repair to allow air to flow through it and up through the repair. . An absorbent material that is either placed around the edges or on top of the repair to absorb the excess matrix.

What could happen to the fibers if too much pressure is applied when using a brush or squeegee?. The Assembly time. The fibers could pull apart, changing the wovens characteristic of the fabric. The fibers could pull apart, changing the strength characteristic of the fabric. The fibers could pull mixed, changing the strength characteristic of the fabric.

Where are Ceramics used?. Where a medium-temperature application is needed. Where a low-temperature application is needed. Where a high-temperature application is needed. The ribs and skin surface of the wing.

Which method is effective when used on large contoured surfaces which cannot be clamped?. Selective placernent. Clecos. Shot Bags. Vacuum Bagging.

This type of fiber orientation calls for fibers to run in two or more directions?. Unidirectional. Mats. Filament Winding. Bidirectional or multidirectional.

What gives the primary strength to the composite structure?. The combined with a matrix, the reinforcing fibers. The combined with a bonded, the reinforcing strands. 2. The combined with a matrix, the reinforcing wovens.

What is the Aramid?. White gleaming cloth. A and B are correct. Is the name given to aromatic polyamide fibers. Is the name given to the Kevlar fibers.

What is The purpose of mechanical pressure?. None. Cure at higher temperatures. Increase the curing time. Remove excess resin.

The bonding material that completely surrounds the fiber to give strength and transfer the stresses to the fibers.?. Fiber. Fabric. Molds wet lay up and autoclave. Matrix or resins.