Description : Give reasons : (a) Window glass of old building look milky. b) Window glass of old building is thick at bottom. (c) CaCl2 will introduce Schottky defect if added to AgCl crystal.
Last Answer : (a) Due to annealing over a number of years glass acquires some crystalline character. (b) Glass is not a true solid. But a super-cooled liquid of high viscosity. It has the property to ... to maintain electrical neutrality. Thus a hole is created and lattice site for every Ca2+ ion introduced.
Description : What type of defect causes F -centers in a crystal ? (a) Stoichiometric defect (b) Metal excess defect due to anion vacancies (c) Metal excess defect due to extra cations (d) Frenkel defect
Last Answer : Metal excess defect due to anion vacancies
Description : POP (In computer language) stands for: a) Point of Perfection b) Point of Presence c) Point of Pictures d) None of These
Last Answer : b) Point of Presence
Description : The most serious manufacturing defect from fracture toughness point of view is (A) Surface roughness (B) Pores (C) Spherical inclusion (D) Crack
Last Answer : Option D
Description : When have you ever seen perfection?
Last Answer : Perfection is next to me every morning when I wake up.
Description : What are the pros and cons of striving for perfection?
Last Answer : Pro- you will be a driven individual. Con- You will never succeed.
Description : Do humans naturally and inevitably reject happiness, perfection, and all that is good?
Last Answer : Happiness does not lie in attainment, but in anticipation and projecting forward. It’s the planning, and preparation that really makes us happy. Daniel Gilbert’s “Stumbling on Happiness” discusses the psychological and neurological processes that happen to create “happiness.”
Description : Could two dissimilar items both be perfect for one purpose? (Plus more questions of perfection)
Last Answer : No.
Description : In yon vast field of cultivated space, I there am found with members of my race; Decapitate me - if you've no objection - You then will find what brings me to perfection; Take one more cut, and then you'll plainly see What Iam destined, day by day, to be. What am I? -Riddles
Last Answer : WHEAT HEAT EAT
Description : What is the perfection of good governance in the state ?
Last Answer : By performing the duties of a citizen.
Description : The Black Evening Dress: Simple Perfection?
Last Answer : A black evening dress can be the perfect attire for formaldinners, cocktails, and even weddings. The best thing about them isthey are perfect for nearly any event and are suitable for anyseason. Black ... casual look, simple textured dressesare the way to go. The length of the dress is also
Description : Is the Epson Perfection V200 Photo Scanner would be compatible to my old computer?
Last Answer : It depends of the specs of your "old computer". This scanner supports Windows 2000\XP\Vista and Mac OS X 10.2.8 or later and also requires a cd-rom to load the software on the cd that comes with the scanner.
Description : Who used the thousand years as an equivalent for the whole duration of the world employing the number of perfection to mark the fullness of time' according to St Augustine's 'City of God'?
Last Answer : The duration of this earth iteration (age) is clearly given in the texts of the KJV bible. 2nd Peter Ch 3 states a day with the Lord is a 1000 years with man. Therefore the first 7 days mentioned ... come at the end of this earth iteration, upon this 6th day of this second week which we are within,
Description : Don't Expect Perfection ?
Last Answer : When you read these columns it all sounds so nice and simple. If you just do a few things, the things that you know you need to do in order to life a healthier lifestyle and shed those pounds, then things ... don't have to beat yourself up about it, just learn from it and you're on the right track.
Description : Which one of the following changes involved is irrelevant, in the evolution of man? (a) Perfection of hand for tool making (b) Change of diet from hard nuts and hard roots to soft food (c) Loss of tail (d) Increase in the ability to communicate with others and develop community behaviour
Last Answer : (b) Change of diet from hard nuts and hard roots to soft food
Description : A situation in which, whatever happens or whatever choice is made, the people involved will benefit is called 1. Good situation 2. Perfection situation 3. Win-Win situation 4. Lose-Lose situation 5. Win-Lose situation
Last Answer : Win-Win situation
Description : A teacher can make problem-solving fun for students by doing all the following except Options: A) providing open ended material B) giving time for free play C) providing endless opportunities for ... thinking D) expecting perfection from the students while they are trying to do things by themselves.
Last Answer : D) expecting perfection from the students while they are trying to do things by themselves.
Description : In order to give effective guidance to the learning of a skill, the instructor must necessarily be able Options: A) To execute the skill with a high degree of perfection B) To execute the skill ... be learned D) To foresee and forestall the development of bad habits, the occurrence of plateaus, etc
Last Answer : C) To develop in the student's insight into the nature of the skill to be learned
Description : “Education is the manifestation of perfection already in man” was stated by (A) M. K. Gandhi (B) R. N. Tagore (C) Swami Vivekanand (D) Sri Aurobindo
Last Answer : (C) Swami Vivekanand
Description : Software safety is a ................... activity that focuses on the identification and assessment of potential hazards that may affect software negatively and cause an entire ... monitoring and management (B) Software quality assurance (C) Software cost estimation (D) Defect removal efficiency
Last Answer : (B) Software quality assurance
Description : (3) reflection of light due to the presence of free electrons Explanation: Lustre (or luster) is the way light interacts with the surface of a crystal, rock, or mineral. The word ... conductivity, and high density. Typically they are malleable and ductile, deforming -under stress without cleaving.
Last Answer : Cloud is a colloidal dispersion of – (1) Air in a dispersion medium of water (2) Fog in a dispersion medium of water (3) Mist in a dispersion medium of air (4) Water drops in a dispersion medium of air
Description : Van der Waals derived an expression for the pressure defect', if the observed pressure is denoted as p' and volume is denoted as V', the gas pressure in the bulk of the gas is equal to: A. p + ... a: constant for the particular gas D. p + (a V²); where a: constant for the particular gas
Last Answer : p + a/(V²); where a: constant for the particular gas
Description : Solids may be considered to be either crystalline noncrystalline. The basic difference between them is that a crystal, in contrast to a noncrystal: w) has a sharp melting point x) has an irregular array of atoms y) exhibits double refraction z) has a completely regular atomic or molecular structure
Last Answer : ANSWER: Z -- HAS A COMPLETELY REGULAR ATOMIC OR MOLECULAR STRUCTURE
Description : A casting defect which occurs near the ingates as rough lumps on the surface of a casting is known as 1. Shift 2. Sand wash 3. Swell 4. Scab
Last Answer : A casting defect which occurs near the ingates as rough lumps on the surface of a casting is known as Sand wash
Description : The increased gain of 10 dbs for single line & ‘D’ marks rails on double/multiple lines shall be employed for classification of defects. (i) defect in weld (ii) defects in rail. * (iii) for both defects on weld & rail. (iv) None of above.
Last Answer : ii) defects in rail. *
Description : The defect of a lens whereby rays of white light proceeding from a point get dispersed into their components and conveyed to various foci, forming a blurred and coloured image is known as (A) Chromatic aberration (B) Spherical aberration (C) Astigmatism (D) Coma
Last Answer : (A) Chromatic aberration
Description : A point defect exhibiting an apparent gain in one direction will exhibit what, when measured in the opposite direction?
Last Answer : An exaggerated loss.
Description : Explain how a point defect may exhibit an apparent gain.
Last Answer : A point defect may exhibit apparent gain because the backscatter coefficient of the fiber present before the point defect is higher than that of the fiber present after.
Description : If the length of the fiber point defect changes with pulse duration, is the OTDR signal deviation a point defect or a region of high fiber attenuation?
Last Answer : A point defect.
Description : What type of defect arise when a solid is heated? Which physical property is affected by it and what way ?
Last Answer : Vacancy defect is created, it is because on heating some atoms leaved the lattice site completely also the density decreases.
Description : What type of defect can arise when a solid is heated ? Which physical property is affected by this and in what way ?
Last Answer : When a solid is heated vacancy defect arises. This is because on heating some atoms or ions leacve the lattice site completely some lattice sites are vacant. As a result of this defect the density of the substance decreases, because some atoms leave the structure completely.
Description : Which type of defect occur in Ag Br ?
Last Answer : Schottky defect and Frekel defect.
Last Answer : Line imperfection in a crystal is called edge dislocation.
Description : Which of the following characteristics is not typical of ionically bonded crystals? (a) Has no sharp melting point (b) Cleave into definite cleavage planes (c) Conducts when melted (d) Shatters when crystal is distorted
Last Answer : Ans:(a)
Description : Pure nickel is (A) Ferromagnetic above its curie point (i.e., 415°C) (B) Having h.c.p. crystal lattice (C) Ferromagnetic at room temperature (D) Not resistant to oxidation at high temperature
Last Answer : (C) Ferromagnetic at room temperature
Description : Which of the following properties of a solid is not dependent on crystal imperfection? (A) Ductility (B) Semi-conductivity (C) Melting point (D) Yield stress
Last Answer : (C) Melting point
Description : During the manufacture of a point-contact diode, what is the purpose of passing a relatively large current from the catwhisker to the silicon crystal?
Last Answer : . To form a small region of p-type material
Description : Giving a suitable example for each, explain the following : (i) Crystal field splitting (ii) Linkage isomerism (iii) Ambidentate ligand -Chemistry
Last Answer : i) Crystal field splitting: It is the splitting of the degenerate energy levels due to the presence of ligands. When ligand approaches a transition metal ion, the degenerate d-orbitals split into two ... the nitrogen atom or one of the oxygen atoms. Example : - SCN thiocyanate, - NCS isothiocyanate
Description : What is Glober Salt Crystal ?
Last Answer : Glober salt crystal Na2SO4. 10H2O
Description : What is crystal water ?
Last Answer : Crystal water: Crystal water is water which is essential for the formation of certain crystals of a compound .
Description : (2) stabilise the colloid and prevent crystallisation Explanation: Gelatine, being a colloid, has the property of preventing crystallization. In ice lollies and icecream this is demonstrated by the formation ... does not become grainy or sandy due to the slow crystallisation of lactose with time.
Last Answer : Glycol is added to aviation gasoline because it - (1) reduces evaporation of petrol (2) increases efficiency of petrol (3) prevents freezing of petrol (4) reduces consumption of petrol
Description : Glass is - (1) Super cooled liquid (2) Crystalline solid (3) Liquid crystal (4) None of these
Last Answer : (1) Super cooled liquid Explanation: Glass is sometimes called a Super cooled liquid because it does not form a crystalline structure, but instead forms an amorphous solid that allows molecules in the material to continue to move.
Description : Which of the following is a natural dye? (1) Crystal violet (2) Aniline blue (3) Alizarin (4) Phenolphthalein
Last Answer : (3) Alizarin Explanation: Alizarin or 1,2- dihydroxyanthraquinone (also known as Mordant Red 11 and Turkey Red is an organic compound with formula C14H8O4 that has been used throughout history as a ... of the madder genus. In 1869, it became the first natural pigment to be duplicated synthetically.
Description : Which have more entropy real crystal or ideal crystal and why?
Last Answer : Ans. Real crystal has more entropy because it has more disorderness.
Description : A real crystal has more entropy than an Ideal crystal. Why?
Last Answer : Ans. A real crystal has some disorder due to presence of defects in their structural arrangement, and Ideal crystal does not have any disorder.
Description : There are ....... lines of symmetry in cubic crystal. a. 3 b. 13 c. 9 d. 6
Last Answer : b. 13
Description : Czochralski method is widely used for the growth of crystal of -------------materials. a) Conductors b) semiconductors c) insulator d) conductors & insulators
Last Answer : b) semiconductors
Description : Which of the following terms means that a crystal has the ability to capture and hold water molecules? w) hydroponic x) hygroscopic y) hydrophobic z) hydropholectic
Last Answer : ANSWER: X -- HYGROSCOPIC
Description : Which one of the following is classified as a covalent network solid crystal? w) CaO x) SiO2 y) CO2 z) Pb
Last Answer : ANSWER: B -- SiO2
Description : What is a typical spacing between atoms in a crystal, e.g., copper or rock salt? w) 0.1 Angstroms x) 2 Angstroms y) 20 Angstroms z) 100 Angstroms
Last Answer : ANSWER: B -- 2 ANGSTROMS