Description : Polymers which soften on heating and harden when cooled are (a) Cross-linked polymers (b) Copolymers (c) Thermosetting polymers (d) Thermoplastics
Last Answer : Thermoplastics
Description : The purpose of nitriding the steel is to (A) Harden its surface (B) Soften its surface (C) Improve its reliability (D) None of these
Last Answer : (A) Harden its surface
Description : Vulcanization is the process of cross-linking polymer chains in rubber using (a) Sulfur. (b) Formaldehye. (c) Benzoyl peroxide. (d) Ethylene glycol.
Last Answer : Sulfur.
Description : Roller chains are used for: a)Higher speed and higher loads b)made of high grade steel c)components are harden and polished d)All of the above
Last Answer : d)All of the above
Description : . In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher (A) Densities (B) Melting point (C) Tensile strength (D) Hardness, rigidity & brittleness
Last Answer : (D) Hardness, rigidity & brittleness
Description : Cross linked polymers formed from bi-and trifunctional groups in which cross-linkage in three dimensions via few chemical bonding across linear chains occur imparts to the polymer __________ properties. (A) Thermoplastic (B) Thermosetting (C) Elastometric (D) Brittleness
Last Answer : (C) Elastometric
Description : Melt spinning of polymers involves the forcing of polymer melt through spinnerates (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter ... the __________ fibres. (A) Acrylic (B) Polyester (C) Nylon 6:6 (D) Polypropylene
Last Answer : (A) Acrylic
Description : Pick out the correct statement. (A) Plastics are good conductors of heat and electricity (B) All the polymers are highly crystalline in nature (C) Polymers can be vaporised by heating to ... D) The liquid polymer becomes greasy, then waxy and finally solid on increasing the degree of polymerisation
Last Answer : (D) The liquid polymer becomes greasy, then waxy and finally solid on increasing the degree of polymerisation
Description : Visco-elastic behaviour of materials which is time dependent is common in (A) Plastics (B) Crystalline solid (C) Non-crystalline solids (D) Non-crystalline organic polymer
Last Answer : (D) Non-crystalline organic polymer
Description : Thermosetting materials (A) Are cross-linked molecules (B) Soften on application of heat (C) Are solvent soluble (D) None of these
Last Answer : (A) Are cross-linked molecules
Description : The main purpose of galvanising iron sheets is to (A) Harden the surface (B) Increase its glossiness and lustre (C) Prevent the action of water (D) Prevent the action of oxygen
Last Answer : (C) Prevent the action of water
Description : Carbon atoms link together with other carbon atoms in all of the following ways EXCEPT w) networks x) chains y) ionic bonds z) rings
Last Answer : ANSWER: Y -- IONIC BONDS
Description : Removal of the entire tassel (male inflorescence of maize) from the plant before pollen to initiate cross hybridization
Last Answer : Ans. Detasseling
Description : What is the purpose of either 'setpoint module' (6000F090/030) shown in the illustration? EL-0094 A. Program the 'signal conditioner' as to how to vary its input. B. Supply 0 - 10 volts to ... . Obtain an input from the 'signal conditioner' and, if outside set limits, signals the 'annunciator'.
Last Answer : Answer: D
Description : Hook link chains are a)suitable for external drive exposed atmosphere b)made of meabble iron c)used where power requirement is low and speed is low d)All of the above
Description : Which property of Zeolites make it suitable to soften hard water?
Last Answer : Ans-Sodium ions are exchanged by calcium and magnesium ions
Description : What are some signs that indicate you need to harden up?
Last Answer : I’m already hard.
Description : Does chocolate ganache harden?
Last Answer : Yes, this is ganache. Ganache kind of hardens, but is still soft. I believe it is exactly what you are looking for. Truffles (the ones rolled in cocoa powder) are made from ganache. I hope that ... They are soft enough to melt against your skin or on your tongue, but hard enough to keep shape.
Description : If i bruise alot, will it eventually harden and stop bruising?
Last Answer : I don’t know if that applies to bruises. I know it’s true for cuts, though.
Description : How to tell if butternut squash is ripe and how to harden off and store?
Last Answer : Need Answer
Description : what use to harden my yard
Last Answer : Try adding clay to the areas that are most suspect to the water damage. -Birdy
Description : Name the mineral which is used to harden steel during manufacturing -SST 10th
Last Answer : Manganese is required to harden steel during manufacturing.
Description : If I make a ceramic statue and don't burn it because I don't have a kiln, will it harden too? Thank you
Last Answer : Yes dries and hardens. However, if it absorbs moisture or gets wet, it will soften again.
Description : I need to improve my immunity a little bit. How to do it? Should I alternate hot and cold showers? Or Only a cold shower?
Last Answer : Rather than milling yourself in the shower, I recommend the sauna. I will add: Of course, the sauna hardens ... Improving immunity is a question (even with Scottish sprays or showers) - but if I accept that "what doesn't kill you will make you stronger", then definitely yes. ;-)
Description : What school did James harden go to?
Last Answer : He went to artesia high in California
Description : Did James Harden die?
Last Answer : James Harden-Hickey died in 1898.
Description : How good is James Harden?
Last Answer : Really Good.
Description : Which of the problems listed will occur if a lead-acid battery is allowed to remain in a discharged condition for a long period of time? A. The battery may be unable to accept a full charge ... . C. The concentrated sulfuric acid will attack the lead peroxide plates. D. The separators will harden.
Last Answer : Answer: A
Description : In temperate climates, pruning should not be done near the end of the summer because: a. New growth will not harden before winter b. It may increase foliage disease c. Plants will not recover in time to produce new growth before winter d. Sever “bleeding” from the cuts will kill the plant
Last Answer : New growth will not harden before winter
Description : Cement concrete is __________________to moisture (a) Permeable (b) Impermeable (c) Rapid Harden (d) None of these
Last Answer : (b) Impermeable
Description : Mixed concrete cannot be shipped further than 25 miles because the concrete might harden in the truck. Antrim County Concrete Company is the only supplier of mixed concrete within a 30 ... structures: A)Monopoly B)Oligopoly C)Monopolistic Competition D)Perfect Competition E)Monopsony
Last Answer : A)Monopoly
Description : It is dangerous to observe solar eclipse with naked eyes because – (1) Infrared radiations from sun burn our retina (2) Ultraviolet radiations from Sun burn our retina (3) All radiations from sun initiate chemical reactions in eyes (4) Cosmic rays reach eyes more during the eclipse
Last Answer : (2) Ultraviolet radiations from Sun burn our retina Explanation: The solar radiation that reaches the surface of Earth ranges from ultraviolet (UV) radiation at wavelengths longer than 290 nm to radio ... of the Sun during an eclipse is for the development of "eclipse blindness" or retinal burns.
Description : In a cross linked polymer, the monomeric units are linked together to constitute a three dimensional network. Which of the following is a crosslinked polymer? (A) Bakelite (phenol formaldehyde) (B) Polyester (C) Polythene (D) Nylon-6
Last Answer : (A) Bakelite (phenol formaldehyde)
Description : Pick out the wrong statement regarding the solubility characteristics of high polymers. (A) Greater the degree of cross-linking in the polymer, lesser is its solubility (B) Polymers having more ... of the solvent (D) High molecular weight polymers on dissolving gives solution of very low viscosity
Last Answer : (D) High molecular weight polymers on dissolving gives solution of very low viscosity
Description : Any suggestions on how to soften up rough feeling bath towels?
Last Answer : Fabric softner would be my suggestion, but I see you have already tried that. If you do buy new towels keep in mind very soft, plush towels tend to not absorb water well. Somewhere in the middle is the ideal in my opinion.
Description : How to loosen/soften a leather belt?
Last Answer : That method will surely change the appearance. I would call a tack shop, and ask them what they do to treat harnesses, reins, saddles, etc.
Description : How can I soften up my itchy 100% wool fall sweater?
Last Answer : chica, if it’s itchy now, it’ll be itchy whatever you do. Wear a silky little something underneath. With long sleeves.
Description : How do I soften a peach hull so I can plant the peach seed
Description : The soil in my yard is very hard water will not soak in but a 1/2 in or so,how can I soften the soil?
Last Answer : Sounds like you have clay soil. You would have to amend it if you want to garden........use a cultivator and break it up.............test the soil.....you might need lime, mulch, ... it on a slight slant to keep the drainage working well, every year we till the leaves and grass clippings in again.
Description : why do the figs on my fig tree not soften and become ripe? they stay green and hard
Last Answer : Check the age of your fig tree. Fig trees must be at least 8 years old to product ripe fruit. -Birdy
Description : what do I do to soften hard clay soil?
Last Answer : This is something that takes some time to accomplish. You will need good compost before you start. You can purchase compost online or at a local gardening store. Start by using a pitchfork to ... and mulch however will improve the quality of the soil. It will get better and better each year.
Description : How to soften dry skin ?
Last Answer : Dry skin problems can occur at any age. And once you are affected by this skin disease, the beauty diminishes and it is like seeing the eyes. That is why this article discusses a home remedy that is very ... apply it all over the face. When you see that the pack is dry , wash your face with water.
Description : What is Soften ?
Last Answer : Soften soften.
Last Answer : Causes of constipation: 1. Eat less fibrous foods and vegetables and fruits ; 2. Water plays less ; 3. Worried ; 4. Absolutely no physical activity , walking or exercise ; 5. If intestinal ... eating it immediately and staying away from cow , khasi and other fatty foods which harden the stool.
Description : how to soften face towel?
Description : Define two method by which we can soften the water sample.
Last Answer : Define two method by which we can soften the water sample.
Description : What is an alternative to lotion to soften your skin?
Last Answer : Some alternatives to lotion to help soothe dry skin includeolive oil, coconut oil, aloe vera gel, and some may prefer a gentlemilk bath to soften skin.
Description : What should we do if we want a hard C but the following would soften?
Last Answer : If the C is followed by an E, I or Y, then the C would softeninto an S sound.There are some ways to stop the following letters from softeningthe C:Firstly, we can double the C like "soccer". ... instead. That's because if we use the C with thesefollowing letters, then it'll soften into an S sound.