I need ways to test/get data about homemade plastics. What can I do with Flexural Strength and Flexural Modulus...

I need ways to test/get data about homemade plastics. What can I do with Flexural Strength and Flexural Modulus...
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Answer :

answer:Strength is how strong a material is – basically breaking load. Modulus is how flexible or stretchy a material is. Does not matter if the test coupon breaks or not. Think of uncooked spaghetti vs rubber band.
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The ability of a material to resist plastic deformation known as _____________ a) Tensile strength b) Yield strength c) Modulus of elasticity d) Impact strength

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Consider the following statements: Percentage of steel for balanced designed of a singly reinforced rectangular section by limit state method depends on (1) Characteristic strength of concrete (2) Yield strength of concrete (3) Modulus of elasticity of steel (4) Geometry of the section. Which of these statements are correct? (a) 2, 3 and 4 (b) 1, 3 and 4 (c) 1, 2 and 4 (d) 1, 2 and 3

Description : Consider the following statements: Percentage of steel for balanced designed of a singly reinforced rectangular section by limit state method depends on (1) Characteristic strength of concrete (2) Yield strength of concrete (3) Modulus of elasticity ... (b) 1, 3 and 4 (c) 1, 2 and 4 (d) 1, 2 and 3

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The ductility of metal is usually expressed in terms of the: A. Yield strength (point where the material is not longer elastic) B. Percent elongation C. Modulus of elasticity (stiffness of the material)

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A compression spring is made of music wire of 2 mm diameter having a shear strength and shear modulus of 800 Mpa and 80 Gpa respectively. The mean coil diameter is 20mm, free length is 40 mm, and the number of active coils is 10. If the mean coil diameter is reduced to 10 mm, the stiffness of the spring is approximately a. increased by 8 times b. decreased by 2 times c. increased by 2 times d. decreased by 8 times

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The strength of a beam depends upon (a) Its section modulus (b) Permissible bending stress (c) Both (a) and (b) (d) None of these

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The force which develops in a pressure conduit supported on trestles, is (A) Tension (B) Compression (C) Temperature stress (D) Flexural stress

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The maximum deflection of a simply supported beam of span L, carrying an isolated load at the centre of the span; flexural rigidity being EI, is (A) WL3 /3EL (B) WL3 /8EL (C) WL3 /24EL (D) WL3 /48EL

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The maximum deflection due to a load W at the free end of a cantilever of length L and having flexural rigidity EI, is (A) WL²/2EI (B) WL²/3EI (C) WL3 /2EI (D) WL3 /3EI

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Last Answer : (D) WL3 /3EI

The maximum deflection due to a uniformly distributed load w/unit length over entire span of a cantilever of length l and of flexural rigidly EI, is (A) wl3 /3EI (B) wl4 /3EI (C) wl4 /8EI (D) wl4 /12E

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A cantilever of length is subjected to a bending moment at its free end. If EI is the flexural rigidity of the section, the deflection of the free end, is (A) ML/EI (B) ML/2EI (C) ML²/2EI (D) ML²/3EI

Description : A cantilever of length is subjected to a bending moment at its free end. If EI is the flexural  rigidity of the section, the deflection of the free end, is  (A) ML/EI (B) ML/2EI (C) ML²/2EI (D) ML²/3EI

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The cross sections of the beams of equal length are a circle and a square whose permissible bending stress is same under same maximum bending. The ratio of their flexural weights is, (A) 1.118 (B) 1.338 (C) 1.228 (D) 1.108

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Last Answer : (A) 1.118

Interior thickness of concrete road slab for design wheel load 6300 kg and permissible flexural stress 21 kg/cm2 , is (A) 17.0 cm (B) 25.5 cm (C) 34.0 cm (D) 42.5 cm

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In a two way slab flexural bending develops [ A ] Along short span [ B ] Along long span [ C ] In Mutually perpendicular directions [ D ] At the center of short span

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In the theorem of three moments in the most general form a.two flexural rigidity are considered b. only one flexural rigidity is considered c.no flexural rigidity is considered d.flexural rigidity is doubled

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Last Answer : a.two flexural rigidity are considered

A simply supported beam carries uniformly distributed load of 20 kN/m over the length of 5 m. If flexural rigidity is 30000 kN.m2, what is the maximum deflection in the beam? a. 5.4 mm b. 1.08 mm c. 6.2 mm d. 8.6 mm

Description : A simply supported beam carries uniformly distributed load of 20 kN/m over the length of 5 m. If flexural rigidity is 30000 kN.m2, what is the maximum deflection in the beam? a. 5.4 mm b. 1.08 mm c. 6.2 mm d. 8.6 mm

Last Answer : a. 5.4 mm

The product of the tangential force acting on the shaft and radius of shaft known as (a) Torsional rigidity (b) Flexural rigidity (c) Bending moment (d) Twisting moment

Description : The product of the tangential force acting on the shaft and radius of shaft known as (a) Torsional rigidity (b) Flexural rigidity (c) Bending moment (d) Twisting moment

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What are some homemade ways to unclog a drain?

Description : What are some homemade ways to unclog a drain?

Last Answer : If you have some Baking Soda and Vinegar, this can be used to unclog a drain. If the drain is really backed up, you could use a wire hanger to unclog it. Simply bend the wire hanger into a hook thin rod with a hook at the end and use it to push and scrape debris out of the drain.

To determine the modulus of rupture, the size of test specimen used is (A) 150 × 150 × 500 mm (B) 100 × 100 × 700 mm (C) 150 × 150 × 700 mm (D) 100 × 100 × 500 mm

Description : To determine the modulus of rupture, the size of test specimen used is (A) 150 × 150 × 500 mm (B) 100 × 100 × 700 mm (C) 150 × 150 × 700 mm (D) 100 × 100 × 500 mm

Last Answer : Answer: Option C

Which plastics can helium support?

Description : Which plastics can helium support?

Last Answer : Most if not all plastics are porous and Helium is a small molecule and will pass through the plastic over time. You could try sealing the sculpture with a sealer and that my help contain the ... their balloons to give them long float time of sometimes weeks with the Mylar balloons going even longer.

The substances used in colour paints, fil- ters, plastics and other materials?

Description : The substances used in colour paints, fil- ters, plastics and other materials?

Last Answer : Pigments

Which type of plastics is used for mak- ing adhesives; button etc?

Description : Which type of plastics is used for mak- ing adhesives; button etc?

Last Answer : Urea formaldehyde

Plastics are generally?

Description : Plastics are generally?

Last Answer : Synthetic polymers

The compound of chlorine used in the plastics?

Description : The compound of chlorine used in the plastics?

Last Answer : Polyvinyl chloride (PVC

Why is it better to use plant and animal based products in place of petroluem and plastics?

Description : Why is it better to use plant and animal based products in place of petroluem and plastics?

Last Answer : This is my midterm essay question which I have researched on my own. But I am at a loss.

When I do the dishes, why do the plastics sometimes end up greasy?

Description : When I do the dishes, why do the plastics sometimes end up greasy?

Last Answer : answer:I've noticed that too, must have something to do with the grease sticking to the plastic more. I always use tons of soap and rinse really well as I also have a phobia about tasting soap. ... run it for the same reason and because somewhere, deep down, I think it is inferior to hand washing.

Why not get a small chipper and chip non-recyclable plastics into small pieces before dumping?

Description : Why not get a small chipper and chip non-recyclable plastics into small pieces before dumping?

Last Answer : Because a landfill full of sharp plastic shards is not good for the enviroment. Also given that it won't speed up the rate decomposition I think it isn't worth the effort. Add on ... overall it's probably worsefor the enviroment. It would be better to boycot companies that use plastic packaging.

Do you remember the many questions on safe/unsafe plastics for water bottles, food storage, Nalgene, etc?

Description : Do you remember the many questions on safe/unsafe plastics for water bottles, food storage, Nalgene, etc?

Last Answer : answer:Here's a summary; http://tinyurl.com/3jdkmj And one of many from ask-public: http://www.ask-public.com/disc/466/water-bottles-plastic-glass-stainless-steel-or/ Similar articles in all ... (the white waxy, shiny coating). Tomatoes and other acid foods may leach more severely. Buyer beware.

Should we start mining old landfill sites for plastics and other recyclable material?

Description : Should we start mining old landfill sites for plastics and other recyclable material?

Last Answer : I don’t see why not! I think it could be worth it. Then we wouldnt have to cut down as many trees to get new stuff. All the stuff at the dump is just going to sit there anyways.

what are extruded plastics

Description : what are extruded plastics

Last Answer : Need Answer

How can we reduce the use of plastics in our daily life?

Description : How can we reduce the use of plastics in our daily life?

Last Answer : Usage of plastics should be banned by the government. First and Foremost thing is the role of an individual in reducing the usage of plastics. People should carry a cloth bag while going to shops ... grocery shops, markets etc. Steel or glass containers should be used at homes for storing things.