Description : How many molecules per unit cell are there in a face centred cubic lattice? (A) 2 (B) 4 (C) 6 (D) 8
Last Answer : (B) 4
Description : Out of the following, the lowest packing of atoms exists in __________ crystal lattice structure. (A) Hexagonal close, packed (hcp) (B) Face centred cubic (fcc) (C) Body centred cubic (bcc) (D) Simple cubic
Last Answer : (D) Simple cubic
Description : Pick out the wrong statement. (A) Metal/alloys having hexagonal crystal lattice structure are less malleable than those having cubic crystal lattice structure (B) Metal/alloys having body centred cubic ... D) Both ferritic & austenitic stainless steel has a face centred cubic (fcc) crystal structure
Last Answer : (C) Tungsten has a body centred cubic (bcc) crystal lattice structure
Description : Nickel as a material of construction (A) Is used as an alloying element for both ferrous & non-ferrous alloys (B) Is paramagnetic below 415° C (its Curie temperature) (C) Diamagnetic (D) Has a body centred cubic (bcc) crystal lattice structure
Last Answer : (A) Is used as an alloying element for both ferrous & non-ferrous alloys
Description : Closeness of packing is maximum in case of __________ crystal lattice. (A) Face centred (B) Simple cubic (C) Body centred (D) None of these
Last Answer : (A) Face centred
Description : Mild steel has __________ crystal lattice structure. (A) Face centred cubic (fcc) (B) Body centred cubic (bcc) (C) Orthorhombic (D) Cubic
Last Answer : (B) Body centred cubic (bcc)
Description : How many number of molecules per unit cell which crystallizes in the form of end face centred (monoclinic) lattice with a molecule at each lattice.
Last Answer : 2.
Description : Which of the following crystal structures characterises the austenitic stainless steel? (A) Simple hexagonal (B) Body centred cubic (C) Face centred cubic (D) None of these
Last Answer : (C) Face centred cubic
Description : Which of the following crystal structures characterises the ferritic stainless steel? (A) Face centred cubic (B) Body centred cubic (C) Simple hexagonal (D) None of these
Last Answer : (B) Body centred cubic
Description : How many atoms per unit cell are in a face-centered-cubic crystal? w) two x) four y) six z) eight
Last Answer : ANSWER: X -- FOUR
Description : Cubic crystals containing lattice points only at the corners are called: w) body centered x) face centered y) simple z) hexagonal
Last Answer : ANSWER: C-SIMPLE
Description : Materials having __________ lattice structure are usually most ductile. (A) FCC (B) BCC (C) HCP (D) Cubic
Last Answer : (A) FCC
Description : The ratio of spacing (d) for for simple cubic lattice, d(100) :d(110) :d(111) a. 1 : 0.707: 0.669 b. 1: 1.414: 0.577 c. 1: 0.707 : 0.577 d. 1: 0.707 : 1.154
Last Answer : c. 1: 0.707 : 0.577
Description : Estimate the number of atoms comprising a silicon chip that is 0.2 millimeters by 0.2 millimeters by 0.1 millimeters, given that the density of silicon is 2.34 grams per cubic centimeter, the number of atoms in a gram-weight is approximately 6 x 1023 atoms, and the atomic weight of silicon is 28:
Last Answer : ANSWER: 2 x 1017
Description : When Arsenic atoms are added Germanium lattice, it becomes a/an - (1) Insulator (2) Superconductor (3) Intrinsic semiconductor (4) Extrinsic semiconductor
Last Answer : (4) Extrinsic semiconductor Explanation: When a peritavalent (donor) impurity, like arsenic, is added to germanium, it will form covalent bonds with thegermanium atoms, leaving 1 electron relatively ... this manner - either with Nor P-type impurities - are referred to as EXTRINSIC semiconductors.
Description : When Arsenic atoms are added to Germanium lattice, it becomes a/an (1) Insulator (2) Superconductor (3) Intrinsic semiconductor (4) Extrinsic semiconductor
Last Answer : Extrinsic semiconductor
Description : How many neighboring atoms are in contact with eac atom in a monatomic body-centered cubic structure. w) 4 x) 6 y) 8 z) 12
Last Answer : ANSWER: Y -- 8
Description : A smallest three dimensional part of a crystal lattice is called. a) A particle b) A molecules c) A unit cell d) An atom
Last Answer : c) A unit cell
Description : Consider a unit square centred at origin. The coordinates of the square are translated by a factor (1/2, 1) and rotated by an angle of 90o . What shall be the coordinates of the new square ? (A) (-1/2, 0), (-1/2, 1), (-3/2, 1), (-3/2, ... , 1), (-3/2, 0) (D) (-1/2, 0), (1/2, 1), (-3/2, 1), (-3/2, 0)
Last Answer : (A) (-1/2, 0), (-1/2, 1), (-3/2, 1), (-3/2, 0)
Description : If the velocities of flow of a stream of 10 m depth recorded by a current meter at depths of 2 m and 8 m are 0.7 m and 0.3 m respectively, the discharge per unit width of the stream in cubic metres, is (A) 2 (B) 3 (C) 4 (D) 5
Last Answer : Answer: Option D
Last Answer : The number of atoms per unit cell in B.C.C. structure is 2.
Description : (1) they contain free electrons Explanation: Metals typically consist of closepacked atoms, meaning that the atoms are arranged like closely packed spheres. Two packing motifs are common, one ... surrounded by six neighboring atoms. Several metals adopt both structures, depending on the temperature.
Last Answer : Helium gas is filled in ballons because (1) its atomic number is 2 (2) it is lighter than air (3) it is one of the constitutents of water (4) it is a noble gas
Description : Metal (M) crystallizes in a cubic unit cell with density 3.2 g/cc. Edge-length of the unit cell is `4.37Å` picometre (pm) The number of nearest neighb
Last Answer : Metal (M) crystallizes in a cubic unit cell with density 3.2 g/cc. Edge-length of the unit cell is `4.37Å` ... Ca atom are A. 4 B. 6 C. 8 D. 12
Description : Metal (M) crystallizes in a cubic unit cell with density 3.2 g/cc. Edge-length of the unit cell is `4.37Å` picometre (pm) The nearest neighbour will b
Last Answer : Metal (M) crystallizes in a cubic unit cell with density 3.2 g/cc. Edge-length of the unit ... diagonal C. On the face diagonal D. On opposite face
Description : If edge length of an unit cell `=4xx10^(-8)` cm and the unit cell is a face-centered cubic with atomic mass of metal is 40 then density of the unit ce
Last Answer : If edge length of an unit cell `=4xx10^(-8)` cm and the unit cell is a face-centered cubic with atomic mass of ... /(24) `gm/ml D. `(1)/(4)` gm/litre
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 : What is the number of white blood cells per cubic millimeter of blood in human body ?
Last Answer : : The number of white blood cells per cubic millimeter in human body is 4-10 thousand.
Description : The stem of a cantilever retaining wall which retains earth level with top is 6 m. If the angle of repose and weight of the soil per cubic metre are 30° and 2000 kg respectively, the effective width of the stem at the bottom, is (A) 51.5 (B) 52.5 (C) 53.5 (D) 54.5
Last Answer : Answer: Option C
Description : Minimum number of 50 kg cement bags per cubic metre of concrete for a mix corresponding to crushing strength 280 kg/cm2 at 28 days, are (A) 5.0 (B) 6.5 (C) 7.0 (D) 7.5
Last Answer : Answer: Option B
Description : The extremely self centred nature of man has proven himself capable of more destruction than mother nature herself. What do you think?
Last Answer : No sayings are ever completely accurate. Humans can’t do the same amount of damage that a hurricane or earthquake could do in the same amount of time. But, the humans do intentionally do damage, while natural events don’t.
Description : Three centred two electron bond is present in
Last Answer : Three centred two electron bond is present in A. `NH_(3)` B. `B_(2)H_(6)` C. `BCl_(3)` D. `AlCl_(3)`
Description : What are the differences between Transactional Analysis and person centred therapy?
Last Answer : Need answer
Description : How does relational-centred planning differ from traditional models of case planning please help im working as a cyc worker for child and youth care and need help?
Description : In 321 BC Chandragupta founded the Mauryan Empire, which was centred in modern in Pakistan but had its capital far to the east at: A. Asaam B. Calcutta C. Delhi D. Patna
Last Answer : ANSWER: D
Description : A pointed arch which forms isosceles or equilateral triangle, is generally known as (A) Three centred arch (B) Two centred arch (C) Lancet arch (D) Bull's eye arch
Description : Crusades were centred around in………… (a) Rome (b) Saudi Arabia (c) Jerusalem (d) Palestine
Last Answer : (c) Jerusalem
Description : Which of the following is/are true about teacher/teaching? Options: A) teacher Should Have Control Over The Students To Maintain Peace And Order In The Class. B) Teaching Should Be Pupil Centred ... Subject Centred. C) Teacher Should Arouse Interest Among Students About The Subject D) All Of These
Last Answer : D) All Of These
Description : Modern Indian education at the Elementary school level can best be described as being Options: A) Curriculum-centred B) Project-centred C) Pupil-centred D) Subject-centred
Last Answer : C) Pupil-centred
Description : What is the difference between CFM (cubic feet per minute) and SCFM (standard cubic feet per minute)?
Last Answer : CFM and SCFM are both measures of flow rate. CFM might refer to either the flow rate of a gas or a liquid, whereas SCFM refers only to the flow rate of a gas. The same mass flow rate of a gas ( ... to that flow rate and, because of that, the CFM flow rate cannot be converted to a mass flow rate
Description : How much of the pie do you cover with tin foil if using a lattice edged crust?
Last Answer : I’ve always left my pies uncovered and they’ve turned out well. I’ve never tried covering them with tin foil.
Description : vine growing on lattice on side of house with three leaves
Last Answer : Need Answer
Description : When does the chromatin lattice look shorter and thicker ?
Last Answer : Chromatin reticulum appears shorter and thicker during cell division.
Description : Which show highest lattice energy :-
Last Answer : Which show highest lattice energy :- A. CsI B. MgO C. `CaF_(2)` D. NaF
Description : The correct expected order of decreasing lattice energy is :-
Last Answer : The correct expected order of decreasing lattice energy is :- A. `CaO gt MgBr_(2) gt CsI` B. `MgBr_(2) gt ... 2) gt CaO` D. `CsI gt CaO gt MgBr_(2)`
Description : What is the lattice energy of Nacl ?
Last Answer : -796.69k.j
Description : What happens if Lattice energy increases ?
Last Answer : • The Strength of ionic bond • Stability of the Ionic compound • Ease of formation of the Ionic bond Increases
Description : Define lattice energy.
Last Answer : The energy released when one mole of ionic crystal is formed by the combination of the corresponding gaseous (+ve) and (-ve) ions brought from infinite distance is called lattice energy.
Description : The crystal of diamond shines due to (a) High density (b) Total internal reflection (c) Crystal lattice (d) None of these
Last Answer : Ans:(b)
Description : The serological reaction where antigens and antibodies form an extensive Lattice of large particles is called a. Fixation. b. Precipitation. c. Neutralization. d. Agglutination.
Last Answer : c. Neutralization.
Description : In which of the following case a large lattice is formed? A.Antibody is in excess B.Antigens and antibodies are in optimal proportion C.Antigen is in excess D.None of these
Last Answer : B.Antigens and antibodies are in optimal proportion