What is the maximum number of electrons in principal energy level?

1 Answer

Answer :

Answer: K-2, L-8, M-18, N-32.

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Description : Two electrons in an orbital are differentiated by which of the following? (1) Magnetic quantum number (2) Spin quantum number (3) Principal quantum number (4) Azimuthal quantum number

Last Answer : (2) Spin quantum number Explanation: Spin quantum number is the is the fourth quantum number that differentiates two electrons in the same orbital. The Pauli exclusion principle states that "no two ... atom. Each electron must have a different spin or occupy a different shell from any other.

Description : Two electrons in an orbital are differentiated by which of the following? (1) Magnetic quantum number (2) Spin quantum number (3) Principal quantum number (4) Azimuthal quantum number

Last Answer : (2) Spin quantum number Explanation: Spin quantum number is the fourth quantum number that differentiates two electrons in the same orbital.

Description : Two electrons in an orbital are differentiated by which of the following ? (1) Magnetic quantum number (2) Spin quantum number (3) Principal quantum number (4) Azimuthal quantum number

Last Answer : Spin quantum number

Description : What is the maximum electrons that can occupy the first energy level?

Last Answer : Two

Description : A transmission shaft subjected to pure bending moment should be designed on the basis of (A) Maximum principal stress theory (B) Maximum shear stress theory (C) Distortion energy theory (D) Goodman or Soderberg diagrams

Last Answer : (A) Maximum principal stress theory

Description : For a homogeneous & isotropic body under hydrostatic pressure, which theory of elastic failure does not fail (a) Firstly Maximum Principal Theory (b) Secondly Maximum Shear Stress Theory (c) Thirdly Maximum Principal Energy Theory (d) None

Last Answer : (a) Firstly Maximum Principal Theory

Description : For a homogeneous & isotropic body under hydrostatic pressure, which theory of elastic failure fails (a) Firstly Maximum Principal Theory (b) Secondly Maximum Principal strain Theory (c) Thirdly Maximum Principal Energy Theory (d) None

Last Answer : (c) Thirdly Maximum Principal Energy Theory

Description : Under complex loading, if elastic limit reaches in tension, then failure occurs due to (a) Firstly Maximum principal strain theory (b) Secondly Maximum principal theory of strain energy (c) Thirdly Maximum Principal stress theory (d) None

Last Answer : (c) Thirdly Maximum Principal stress theory

Description : Under complex loading, if elastic limit reaches in tension, then failure occurs due to (a) Firstly Maximum principal strain theory (b) Secondly Maximum principal theory of strain energy (c) Thirdly Maximum shear stress theory (d) None

Last Answer : (d) None

Description : A ductile material may not meet a failure if it has been tested for the theories of failure (a) Firstly Maximum Principal Theory (b) Secondly Maximum Principal Strain Theory (c) Thirdly Maximum principal strain energy theory (d) None

Last Answer : (d) None

Description : Which of the following theories of failure is most appropriate for a brittle material? (a) Maximum principal strain theory (b) Maximum principal stress theory (c) Maximum shear stress theory (d) Maximum strain energy theory

Last Answer : (b) Maximum principal stress theory

Description : The maximum electron capacity of any orbital is (a) 2 (b) 6 (c) 14 (d) Cannot be determined unless the principal quantum number is known

Last Answer : Ans:(a)

Description : The maximum number of principal stresses is a. 1 b. 3 c. 5 d. None

Last Answer : b. 3

Description : The maximum number of principal stresses is a. 2 b. 4 c. 6 d. None

Last Answer : d. None

Description : How many valence electrons are in each energy level?

Last Answer : Need answer

Description : How many electrons does the first energy level of an atom have?

Last Answer : 2

Description : What have a full energy level of valence electrons?

Last Answer : The noble gases (group 18/VIIIA/0) are naturally occurring elements that have a full valence shell with eight valence electrons (an octet), except for helium which has two valence electrons (a duet). This makes these elements very stable and very nonreactive.

Description : What Energy level holds 32 electrons?

Last Answer : Feel Free to Answer

Description : Electrons in the highest energy level of an atom are called _______. (1) valence protons (2) orbital protons (3) valence electrons (4) orbital electrons

Last Answer : (3) valence electrons Explanation: The outermost orbital shell of an atom is called its valence shell, and the electrons in the valence shell are valence electrons.

Description : The acquisition energy by glucose fermentation requires A.substrate-level phosphorylation B.electron transport of electrons from NADH C.long-chain fatty acid oxidation D.the enzyme formic-hydrogen lyase

Last Answer : A.substrate-level phosphorylation

Description : Most of the energy in aerobic respiration of glucose is captured by A- substrate-level phosphorylation B- electron transport of electrons from NADH C- long-chain fatty acid oxidation D- the enzyme formic-hydrogen lyase

Last Answer : electron transport of electrons from NADH

Description : Maximum principal strain is equal to when σ1 and σ2 are tensile (a) (σ1 –μσ2)/E (b) (σ1 + μσ2)/E (c) (–σ1 –μσ2)/E (d) None

Last Answer : (a) (σ1 –μσ2)/E

Description : Maximum principal strain theory is also called as (a) Guest’s theory (b) Haigh theory (c) St.Venant’s theory (d) None

Last Answer : (c) St.Venant’s theory

Description : Maximum principal strain theory is applicable to (a) Ductile materials (b) Brittle materials (c) Composite materials (d) None

Last Answer : (b) Brittle materials

Description : Maximum principal stress is equal to (a) (σx + σy)/2 + [ (σx –σy) 2 + τ 2 ] 0.5 (b) (σx + σy)/2 + 0.5 [ (σx –σy) 2 + τ 2 ] 0.5 (c) (σx + σy)/2 + 0.5 [ (σx –σy) 2 + 4τ 2 ] 0.5 (d) None

Last Answer : (c) (σx + σy)/2 + 0.5 [ (σx –σy) 2 + 4τ 2 ] 0.5

Description : Maximum principal theory is also known as (a) Beltrami Theory (b) Maximum normal stress theory (c) Saint Venant’s theory (d) None

Last Answer : (b) Maximum normal stress theory

Description : Maximum principal theory is also known as (a) Guest Theory (b) Beltrami Theory (c) Rankine Theory (d) None

Last Answer : (c) Rankine Theory

Description : Under maximum principal stress theory, maximum principal stress is equal to (a) Allowable stress in tension (b) Allowable stress in compression (c) Allowable stress in shear (d) None

Last Answer : (a) Allowable stress in tension

Description : Maximum principal stress theory is applicable to (a) Ductile materials (b) Brittle materials (c) Composite materials (d) None

Last Answer : (b) Brittle materials

Description : In a general two dimensional stress system, planes of maximum shear stress are inclined at ___ with principal planes. a. 90 degree b. 180 degree c. 45 degree d. 60 degree

Last Answer : c. 45 degree

Description : Principal planes are those planes on which a. Normal stress is maximum b. Normal stress is minimum c. Normal stress is either maximum or minimum d. Shear stress is maximum

Last Answer : c. Normal stress is either maximum or minimum

Description : Maximum Principal Stress Theory is not good for brittle materials. a) True b) False

Last Answer : b) False

Description : If compressive yield stress and tensile yield stress are equivalent, then region of safety from maximum principal stress theory is of which shape? a) Rectangle b) Square c) Circle d) Ellipse

Last Answer : b) Square

Description : Maximum shear stress in terms of principal stresses is a. Firstly (σ 1 +σ 2 )/2 b. Secondly (σ 1 /σ 2 ) c. Thirdly (σ 1 –σ 2 )/2 d. None

Last Answer : c. Thirdly (σ 1 –σ 2 )/2

Description : The magnitude of maximum principal stress is a. Firstly (σ x +σ y )/2+ (1/2)( σ x +σ y ) +4τ 2 ) 5 b. Secondly (σ x +σ y )/2+ (1/2)( σ x -σ y ) 2 +4τ 2 ) 5 c. Thirdly (σ x +σ y )/2+ (1/2)( σ x +σ y ) 2 +4τ 2 ) 5 d. None

Last Answer : b. Secondly (σ x +σ y )/2+ (1/2)( σ x -σ y ) 2 +4τ 2 ) 5

Description : Which is the maximum principal stress? a. Firstly σ 2 b. Secondly σ 3 c. Thirdly σ 1 d. None

Last Answer : c. Thirdly σ 1

Description : The angle between a principal plane and a plane of maximum shear is a. 15 0 b. 45 0 c. 75 0 d. None

Last Answer : b. 45 0

Description : The angle between a principal plane and a plane of maximum shear is a. 30 0 b. 60 0 c. 90 0 d. None

Last Answer : d. None

Description : How many maximum shear stresses are there with three principal stresses? a. 1 b. 2 c. 3 d. None

Last Answer : c. 3

Description : Principal stresses are a. Firstly Maximum and minimum shear stresses b. Secondly Maximum and minimum normal stresses c. Both (a) & (b) d. None

Last Answer : b. Secondly Maximum and minimum normal stresses

Description : Maximum shear stress is (a) Average sum of principal stresses (b) Average difference of principal stresses (c) Average sum as well as difference of principal stresses (d) None

Last Answer : (b) Average difference of principal stresses

Description : Pick up the correct statement from the following:  (A) The bending stress in a section is zero at its neutral axis and maximum at the outer fibres  (B) The shear stress is zero at the outer ... (C) The bending stress at the outer fibres, is known as principal stress  (D) All the above 

Last Answer : (D) All the above 

Description : Maximum principal stress theory for the failure of a material at elastic point, is known  (A) Guest's or Trecas' theory  (B) St. Venant's theory  (C) Rankine's theory  (D) Von Mises' theory

Last Answer : (C) Rankine's theory 

Description : Along the principal plan subjected to maximum principal stress (A) Maximum shear stress acts (B) Minimum shear stress acts (C) No shear stress acts (D) None of these

Last Answer : (C) No shear stress acts

Description : Through a point in a loaded soil, the principal stress is maximum on (A) Minor principal plane (B) Intermediate principal plane (C) Major principal plane (D) None of these

Last Answer : (C) Major principal plane

Description : Pick up the correct statement from the following: (A) An unconfined compression test is a special case of triaxial compression test (B) An unconfined compression test is a special case of direct ... subjected to major principal stress till it fails due to shearing along the plane of the failure

Last Answer : Option A

Description : A thin spherical shell under internal pressure will fail under a. Maximum shear stress b. Principal compressive stress c. Principal tensile stress d. None

Last Answer : c. Principal tensile stress

Description : A solid circular shaft of diameter 100 mm is subjected to an axial stress of 50 Mpa. It is further subjected to a torque of 10 kNm. The maximum principal stress experienced on the shaft is closest to (a) 41Mpa (b) 82 Mpa (c) 164 Mpa (d) 204 Mpa

Last Answer : (b) 82 Mpa

Description : A teacher learns maximum from Options: A) Principal B) Books C) Students D) None of these

Last Answer : C) Students

Description : The principal issue to be resolved in cases involving alleged negligence is usually a. The amount of the damages suffered by the users of the financial statements. b. Whether to impose punitive damages on ... c. The level of care required to be exercised. d. Whether defendant was involved in fraud.

Last Answer : The level of care required to be exercised