If depth of a beam is doubled then changes in its section modulus a. Will remain same b. Will decrease c. Will be doubled d. Will increase by 4 times

If depth of a beam is doubled then changes in its section modulus
a. Will remain same
b. Will decrease
c. Will be doubled
d. Will increase by 4 times
by

1 Answer

Answer :

d. Will increase by 4 times
by

Related questions

If the activity level increases 10%, total variable costs will A. remain the same B. increase by more than 10% C. decrease by less than 10% D. increase by10%

Description : If the activity level increases 10%, total variable costs will A. remain the same B. increase by more than 10% C. decrease by less than 10% D. increase by10%

Last Answer : D. increase by10%

A simply supported beam is of rectangular section.It carries a uniformly distributed load over the whole span.The deflection at the centre is y.If the depth of beam is doubled ,the deflection at the centre would be a.2y b.4y c.y/2 d.y/8.

Description : A simply supported beam is of rectangular section.It carries a uniformly distributed load over the whole span.The deflection at the centre is y.If the depth of beam is doubled ,the deflection at the centre would be a.2y b.4y c.y/2 d.y/8.

Last Answer : d.y/8.

At any point of a beam, the section modulus may be obtained by dividing the moment of inertia of the section by (A) Depth of the section (B) Depth of the neutral axis (C) Maximum tensile stress at the section (D) Maximum compressive stress at the section

Description : At any point of a beam, the section modulus may be obtained by dividing the moment of inertia of  the section by  (A) Depth of the section  (B) Depth of the neutral axis  (C) Maximum tensile stress at the section  (D) Maximum compressive stress at the section

Last Answer : (B) Depth of the neutral axis 

Which statement is true? 1) The balance of payments depends on the principle of double-entry accounting. 2) Decrease in assets and increase in liabilities of net worth represent credits or sources of funds. 3) The balance of payment is a source- and uses of funds statement that reflects changes in assets, liabilities and net worth during a specified period of time. A. Only 1 B. Only 2 C. Only 3 D. 1, 2 and 3

Description : Which statement is true? 1) The balance of payments depends on the principle of double-entry accounting. 2) Decrease in assets and increase in liabilities of net worth represent credits or sources of funds. 3) The balance of ... period of time. A. Only 1 B. Only 2 C. Only 3 D. 1, 2 and 3

Last Answer : D. 1, 2 and 3

A simply supported beam carries a uniformly distributed load over the whole span.The deflection at the centre is y.If the distributed load per unit length is doubled and also depth of beam is doubled ,then the deflection at the centre would be a.2y b.4y c.y/2 d.y/4.

Description : A simply supported beam carries a uniformly distributed load over the whole span.The deflection at the centre is y.If the distributed load per unit length is doubled and also depth of beam is doubled ,then the deflection at the centre would be a.2y b.4y c.y/2 d.y/4.

Last Answer : d.y/4.

A bucket of water is hanging from a spring balance. An iron piece is suspended into water without touching sides of bucket from another support. The spring balance reading will (A) Increase (B) Decrease (C) Remain same (D) Increase/decrease depending on depth of immersion

Description : A bucket of water is hanging from a spring balance. An iron piece is suspended into water without touching sides of bucket from another support. The spring balance reading will (A) Increase (B) Decrease (C) Remain same (D) Increase/decrease depending on depth of immersion

Last Answer : Answer: Option C

If M, I, R, E, F, and Y are the bending moment, moment of inertia, radius of curvature, modulus of elasticity stress and the depth of the neutral axis at section, then (A) M/I = R/E = F/Y (B) I/M = R/E = F/Y (C) M/I = E/R = E/Y (D) M/I = E/R = Y/F

Description : If M, I, R, E, F, and Y are the bending moment, moment of inertia, radius of curvature, modulus of  elasticity stress and the depth of the neutral axis at section, then  (A) M/I = R/E = F/Y (B) I/M = R/E = F/Y (C) M/I = E/R = E/Y (D) M/I = E/R = Y/F

Last Answer : (C) M/I = E/R = E/Y

Pick up the correct assumption of the theory of simple bending (A) The value of the Young's modulus is the same in tension as well as in compression (B) Transverse section of a beam remains plane before and after bending (C) The material of the beam is homogeneous and isotropic (D) All the above

Description : Pick up the correct assumption of the theory of simple bending  (A) The value of the Young's modulus is the same in tension as well as in compression  (B) Transverse section of a beam remains ... bending  (C) The material of the beam is homogeneous and isotropic  (D) All the above

Last Answer : (D) All the above

If the depth of a simply supported beam carrying an isolated load at its centre, is doubled, the deflection of the beam at the centre will be changed by a factor of (A) 2 (B) 1/2 (C) 8 (D) 1/8

Description : If the depth of a simply supported beam carrying an isolated load at its centre, is doubled, the deflection of the beam at the centre will be changed by a factor of (A) 2 (B) 1/2 (C) 8 (D) 1/8

Last Answer : (D) 1/8

The boundary layer thickness at a given section along a flat plate __________ with increasing Reynold's number(A) Increases(B) Decreases(C) Remain same(D) May increase or decrease.

Description : The boundary layer thickness at a given section along a flat plate __________ with increasing Reynold's number. (A) Increases (B) Decreases (C) Remain same (D) May increase or decrease

Last Answer : (B) Decreases

. If a single tube pass heat exchanger is converted to two pass, then for the same flow rate, the pressure drop per unit length in tube side will (A) Increase by 1.8 times (B) Decrease by 2 2 (C) Increase by 2 16 (D) Remain unchanged

Description : . If a single tube pass heat exchanger is converted to two pass, then for the same flow rate, the pressure drop per unit length in tube side will (A) Increase by 1.8 times (B) Decrease by 2 2 (C) Increase by 2 16 (D) Remain unchanged

Last Answer : (C) Increase by 2 16

When distance from center is doubled then electric field strength will A. decrease by the factor of four B. increase by factor of four C. will be same D. decrease by factor of two

Description : When distance from center is doubled then electric field strength will A. decrease by the factor of four B. increase by factor of four C. will be same D. decrease by factor of two

Last Answer :  decrease by the factor of four

If the load on beam is increased, the tensile stress sin the concrete below the neutral axis will (a) Increase (b) Decrease (c) Remain unchanged (d) None of these

Description : If the load on beam is increased, the tensile stress sin the concrete below the neutral axis will (a) Increase (b) Decrease (c) Remain unchanged (d) None of these

Last Answer : (a) Increase

bulk modulus of elasticity with increase in pressure (A) Increases (B) Decreases (C) Remain constant (D) Increases first up to certain limit and then decreases

Description : bulk modulus of elasticity with increase in pressure (A) Increases (B) Decreases (C) Remain constant (D) Increases first up to certain limit and then decreases

Last Answer : Answer: Option A

A cantilever beam rectangular in cross-section is subjected to an isolated load at its free end. If the width of the beam is doubled, the deflection of the free end will be changed in the ratio of (A) 8 (B) 1/8 (C) 1/2 (D) 3

Description : A cantilever beam rectangular in cross-section is subjected to an isolated load at its free end. If the  width of the beam is doubled, the deflection of the free end will be changed in the ratio of  (A) 8  (B) 1/8  (C) 1/2  (D) 3

Last Answer : (C) 1/2 

The section modulus of a rectangular light beam 25 metres long is 12.500 cm3 . The beam is simply supported at its ends and carries a longitudinal axial tensile load of 10 tonnes in addition to a point load of 4 tonnes at the centre. The maximum stress in the bottom most fibre at the mid span section, is (A) 13.33 kg/cm2 tensile (B) 13.33 kg/cm2 compressive (C) 26.67 kg/cm2 tensile (D) 26.67 kg/cm2 compressive

Description : The section modulus of a rectangular light beam 25 metres long is 12.500 cm3 . The beam is simply supported at its ends and carries a longitudinal axial tensile load of 10 tonnes in addition to a point load of ... 13.33 kg/cm2 compressive (C) 26.67 kg/cm2 tensile (D) 26.67 kg/cm2 compressive

Last Answer : (C) 26.67 kg/cm2 tensile

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

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

Last Answer : (a) Its section modulus

When the speed of a train moving on a circular track is doubled, the centripetal force acting on the train does one of the following. Does the force: w) remain the same x) increase by a factor of 2 y) increase by a factor of 4 z) increase by a factor of 8

Description : When the speed of a train moving on a circular track is doubled, the centripetal force acting on the train does one of the following. Does the force: w) remain the same x) increase by a factor of 2 y) increase by a factor of 4 z) increase by a factor of 8

Last Answer : ANSWER: Y -- INCREASE BY A FACTOR OF 4

is the pre-stressed force applied to the tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The maximum stress in the beam, subjected to a maximum bending moment , is (A) f = (P/A) + (Z/M) (B) f = (A/P) + (M/Z) (C) f = (P/A) + (M/Z) (D) f = (P/A) + (M/6Z)

Description : is the pre-stressed force applied to the tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The maximum stress in the beam, subjected to a maximum bending moment , is (A) f = (P/A) + (Z/M) ... ) + (M/Z) (C) f = (P/A) + (M/Z) (D) f = (P/A) + (M/6Z)

Last Answer : Answer: Option C

is the pre-stressed force applied to tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The minimum stress on the beam subjected to a maximum bending moment is (A) f = (P/A) - (Z/M) (B) f = (A/P) - (M/Z) (C) f = (P/A) - (M/Z) (D) f = (P/A) - (M/6Z)

Description : is the pre-stressed force applied to tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The minimum stress on the beam subjected to a maximum bending moment is (A) f = (P/A) - (Z/M) (B) f = (A/P) - (M/Z) (C) f = (P/A) - (M/Z) (D) f = (P/A) - (M/6Z)

Last Answer : Answer: Option C

The section modulus of a rectangular section is proportional to (A) Area of the section (B) Square of the area of the section (C) Product of the area and depth (D) Product of the area and width

Description : The section modulus of a rectangular section is proportional to  (A) Area of the section  (B) Square of the area of the section  (C) Product of the area and depth  (D) Product of the area and width

Last Answer : (A) Area of the section

When temperature difference between liquid and its surroundings is doubled, the rate of loss of heat will: (1) remain same (2) double (3) three times (4) four times

Description : When temperature difference between liquid and its surroundings is doubled, the rate of loss of heat will: (1) remain same (2) double (3) three times (4) four times

Last Answer : (2) double Explanation: According to Newton's law of cooling, the rate of loss of heat of a body is directly proportional to the difference between the temperature of hot body and temperature of the surroundings, provided that the difference in temperature is small enough.

When temperature difference between liquid and its surroundings is doubled, the rate of loss of heat will: (1) remain same (2) double (3) three times (4) four times

Description : When temperature difference between liquid and its surroundings is doubled, the rate of loss of heat will: (1) remain same (2) double (3) three times (4) four times

Last Answer : double

The effective depth of a singly reinforced rectangular beam is 300mm. the section is over-reinforced and the neutral axis is 120mm below the top. If the maximum stress attained by concrete is 5N/mn2 and the modular ratio is 18, then the stress developed in the steel will (a) 130N/mm2 (b) 135N/mm2 (c) 160N/mm2 (d) 180N/mm2

Description : The effective depth of a singly reinforced rectangular beam is 300mm. the section is over-reinforced and the neutral axis is 120mm below the top. If the maximum stress attained by concrete is 5N/mn2 and the modular ratio ... in the steel will (a) 130N/mm2 (b) 135N/mm2 (c) 160N/mm2 (d) 180N/mm2

Last Answer : (b) 135N/mm2

In a reversible chemical reaction having two reactants in equilibrium, if the concentration of the reactants are doubled, then the equilibrium constant will (A) Remain the same (B) Be halved (C) Also be doubled (D) Become one fourth

Description : In a reversible chemical reaction having two reactants in equilibrium, if the concentration of the reactants are doubled, then the equilibrium constant will (A) Remain the same (B) Be halved (C) Also be doubled (D) Become one fourth

Last Answer : (A) Remain the same

Under a floating exchange rate system, an increase in U.S. imports of Japanese goods will cause the demand schedule for Japanese yen to: A. Increase, inducing a depreciation in the yen B. Decrease, inducing a depreciation in the yen C. Increase, inducing an appreciation in the yen D. Decrease, inducing an appreciation in the yen

Description : Under a floating exchange rate system, an increase in U.S. imports of Japanese goods will cause the demand schedule for Japanese yen to: A. Increase, inducing a depreciation in the yen B. ... C. Increase, inducing an appreciation in the yen D. Decrease, inducing an appreciation in the yen

Last Answer : C. Increase, inducing an appreciation in the yen

Volume variance arises when A. There is rise in overhead rate per hour B. There is decline in overhead rate per hour C. There is decrease or increase in actual output compared to the budgeted output D. None of the above

Description : Volume variance arises when A. There is rise in overhead rate per hour B. There is decline in overhead rate per hour C. There is decrease or increase in actual output compared to the budgeted output D. None of the above

Last Answer : C. There is decrease or increase in actual output compared to the budgeted output

On heating a circular metallic disc with a circular hole at the centre, the diameter of the hole will (a) decrease (b) remain the same (c) increase (d) first increase, then decrease

Description : On heating a circular metallic disc with a circular hole at the centre, the diameter of the hole will (a) decrease (b) remain the same (c) increase (d) first increase, then decrease

Last Answer : Ans:(c)

Assuming flow to be laminar, if the diameter of the pipe is halved, then the pressure drop will (A) Increase (B) Decrease (C) Remain same (D) Be quadrupled

Description : Assuming flow to be laminar, if the diameter of the pipe is halved, then the pressure drop will (A) Increase (B) Decrease (C) Remain same (D) Be quadrupled

Last Answer : (A) Increase

Reynolds number for water flow through a tube of I.D. 5 cm is 1500. If a liquid of 5 centipoise viscosity and 0.8 specific gravity flows in the same pipe at the same velocity, then the pressure drop will (A) Increase (B) Decrease (C) Remain same (D) Data insufficient to predict pressure drop

Description : Reynolds number for water flow through a tube of I.D. 5 cm is 1500. If a liquid of 5 centipoise viscosity and 0.8 specific gravity flows in the same pipe at the same velocity, then the pressure drop will (A) Increase (B) Decrease (C) Remain same (D) Data insufficient to predict pressure drop

Last Answer : (A) Increase

As the temperature of the air increases from 0 degrees C to 20 degrees C, the wavelength of a sound made by a tuning fork of fixed frequency does which of the following? Does the wavelength w) increase x) decrease y) remain the same z) increase up to a maximum, then remain constant

Description : As the temperature of the air increases from 0 degrees C to 20 degrees C, the wavelength of a sound made by a tuning fork of fixed frequency does which of the following? Does the wavelength w) increase x) decrease y) remain the same z) increase up to a maximum, then remain constant

Last Answer : ANSWER: W -- INCREASE

If the width of a simply supported beam carrying an isolated load at its centre is doubled, the deflection of the beam at the centre is changed by (A) 2 times (B) 4 times (C) 8 times (D) 1/2 times

Description : If the width of a simply supported beam carrying an isolated load at its centre is doubled, the deflection of the beam at the centre is changed by (A) 2 times (B) 4 times (C) 8 times (D) 1/2 times

Last Answer : (C) 8 times

In circular sewers if depth of flow is 0.2 times the full depth, the nominal gradient, A. Is only provided B. Is doubled C. Is trebled D. Is not enough

Description : In circular sewers if depth of flow is 0.2 times the full depth, the nominal gradient, A. Is only provided B. Is doubled C. Is trebled D. Is not enough

Last Answer : ANS: B

Under adjustable pegged exchange rates, if the rate of inflation in the United States exceeds the rate of inflation of its trading partners: A. U.S. exports tend to rise and imports tend to fall B. U.S. imports tend to rise and exports tend to fall C. U.S. foreign exchange reserves tend to rise D. U.S. foreign exchange reserves remain constant

Description : Under adjustable pegged exchange rates, if the rate of inflation in the United States exceeds the rate of inflation of its trading partners: A. U.S. exports tend to rise and imports tend to fall ... C. U.S. foreign exchange reserves tend to rise D. U.S. foreign exchange reserves remain constant

Last Answer : B. U.S. imports tend to rise and exports tend to fall

An R.C.C. beam of 25 cm width and 50 cm effective depth has a clear span of 6 metres and carries a U.D.L. of 3000 kg/m inclusive of its self weight. If the lever arm constant for the section is 0.865, the maximum intensity of shear stress, is (A) 8.3 kg/cm2 (B) 7.6 kg/cm2 (C) 21.5 kg/cm2 (D) 11.4 kg/cm2

Description : An R.C.C. beam of 25 cm width and 50 cm effective depth has a clear span of 6 metres and carries a U.D.L. of 3000 kg/m inclusive of its self weight. If the lever arm constant for the section is 0.865, the maximum intensity ... , is (A) 8.3 kg/cm2 (B) 7.6 kg/cm2 (C) 21.5 kg/cm2 (D) 11.4 kg/cm2

Last Answer : Answer: Option A

If permissible working stresses in steel and concrete are respectively 1400 kg/cm2 and 80 kg/cm2 and modular ratio is 18, in a beam reinforced in tension side and of width 30 cm and having effective depth 46 cm, the lever arms of the section, is (A) 37 cm (B) 38 cm (C) 39 cm (D) 40 cm

Description : If permissible working stresses in steel and concrete are respectively 1400 kg/cm2 and 80 kg/cm2 and modular ratio is 18, in a beam reinforced in tension side and of width 30 cm and having effective depth 46 cm, the lever arms of the section, is (A) 37 cm (B) 38 cm (C) 39 cm (D) 40 cm

Last Answer : Answer: Option D

According to Whitney's theory, depth of stress block for a balanced section of a concrete beam is limited to (A) 0.43 d (B) 0.537 d (C) 0.68 d (D) 0.85 d Where d is effective depth of beam

Description : According to Whitney's theory, depth of stress block for a balanced section of a concrete beam is limited to (A) 0.43 d (B) 0.537 d (C) 0.68 d (D) 0.85 d Where d is effective depth of beam

Last Answer : Answer: Option B

According to ISI recommendations, the maximum depth of stress block for balanced section of a beam of effective depth d is (A) 0.43 d (B) 0.55 d (C) 0.68 d (D) 0.85 d

Description : According to ISI recommendations, the maximum depth of stress block for balanced section of a beam of effective depth d is (A) 0.43 d (B) 0.55 d (C) 0.68 d (D) 0.85 d

Last Answer : Answer: Option A

A uniformly distributed load of 20 kN/m acts on a simply supported beam of rectangular cross section of width 20 mm and depth 60 mm. What is the maximum bending stress acting on the beam of 5m? a. 5030 Mpa b. 5208 Mpa c. 6600 Mpa d. Insufficient data

Description : A uniformly distributed load of 20 kN/m acts on a simply supported beam of rectangular cross section of width 20 mm and depth 60 mm. What is the maximum bending stress acting on the beam of 5m? a. 5030 Mpa b. 5208 Mpa c. 6600 Mpa d. Insufficient data

Last Answer : b. 5208 Mpa

If the distance between the centers of mass of two bodies is doubled, the gravitational force between the bodies will become what portion of the original force: w) double x) one half y) remain the same z) one quarter

Description : If the distance between the centers of mass of two bodies is doubled, the gravitational force between the bodies will become what portion of the original force: w) double x) one half y) remain the same z) one quarter

Last Answer : ANSWER: Z -- ONE QUARTER

Bulk modulus of a fluid __________ as the pressure increases. (A) Remain same (B) Decreases (C) Increases (D) None of these

Description : Bulk modulus of a fluid __________ as the pressure increases. (A) Remain same (B) Decreases (C) Increases (D) None of these

Last Answer : Answer: Option C

Tea kept in a thermos flask is vigorously shaken. If the tea is considered as a system, then its temperature will (A) Increase (B) Decrease (C) Remain unchanged (D) First fall and then rise

Description : Tea kept in a thermos flask is vigorously shaken. If the tea is considered as a system, then its temperature will (A) Increase (B) Decrease (C) Remain unchanged (D) First fall and then rise

Last Answer : (A) Increase

With respect to a channel of distribution, the number of intermediary levels within the channel indicates the ____________ of a channel. A. width B. depth C. length D. similarity

Description : With respect to a channel of distribution, the number of intermediary levels within the channel indicates the ____________ of a channel. A. width B. depth C. length D. similarity

Last Answer : C. length

In the product mix, the company producing the toothpaste, paper products, detergents and bathing soap bars is classified as A. product line consistency B. product line width C. product line length D. product line depth

Description : In the product mix, the company producing the toothpaste, paper products, detergents and bathing soap bars is classified as A. product line consistency B. product line width C. product line length D. product line depth

Last Answer : C. product line length

The concept of product mix which refers to wide range of product lines carried by the company is classified as A. width of product mix B. length of product mix C. depth of product mix D. consistency of product mix

Description : The concept of product mix which refers to wide range of product lines carried by the company is classified as A. width of product mix B. length of product mix C. depth of product mix D. consistency of product mix

Last Answer : A. width of product mix

The ________ of a product mix refers to how many variants are offered of each product in the line. A. Width B. Length C. Depth D. Consistency

Description : The ________ of a product mix refers to how many variants are offered of each product in the line. A. Width B. Length C. Depth D. Consistency

Last Answer : C. Depth

The ________ of the product mix refers to how closely related the various product lines are in end use, production requirements, distribution channels, or some other way. A. Consistency B. Depth C. Width D. Length

Description : The ________ of the product mix refers to how closely related the various product lines are in end use, production requirements, distribution channels, or some other way. A. Consistency B. Depth C. Width D. Length

Last Answer : A. Consistency

The ________ of a product mix refers to how many variants are offered of each product in the line. A. Width B. Length C. Depth D. Consistency E. Height

Description : The ________ of a product mix refers to how many variants are offered of each product in the line. A. Width B. Length C. Depth D. Consistency E. Height

Last Answer : C. Depth

When the ice floating in a glass of water melts, the level of water will (a) Increase (b) Decrease (c) Remain constant (d) First increase and then decrease

Description : When the ice floating in a glass of water melts, the level of water will (a) Increase (b) Decrease (c) Remain constant (d) First increase and then decrease

Last Answer : Ans:(c)

Given the money wages, if the price level in an economy increases, then the real wages will - (1) increase (2) decrease (3) remain constant (4) become flexible

Description : Given the money wages, if the price level in an economy increases, then the real wages will - (1) increase (2) decrease (3) remain constant (4) become flexible

Last Answer : (2) decrease Explanation: If workers receive a higher nominal wage and the price level does not change, then the real purchasing power of their wages is higher and they are inclined to increase the quantity of labor supplied.