In a footstep bearing, if the radius of the shaft is doubled, then the torque required to overcome the viscous resistance will be (A) Double (B) Four times (C) Eight times (D) Sixteen times

In a footstep bearing, if the radius of the shaft is doubled, then the torque required to overcome
the viscous resistance will be
(A) Double
(B) Four times
(C) Eight times
(D) Sixteen times
by

1 Answer

Answer :

Answer: Option D
by

Related questions

In a footstep bearing, if the speed of the shaft is doubled, then the torque required to overcome the viscous resistance will be (A) Double (B) Four times (C) Eight times (D) Sixteen times

Description : In a footstep bearing, if the speed of the shaft is doubled, then the torque required to overcome the viscous resistance will be (A) Double (B) Four times (C) Eight times (D) Sixteen times

Last Answer : Answer: Option A

In a footstep bearing, if the speed of the shaft is doubled, then the torque required to overcome the viscous resistance will be (A) Double (B) Four times (C) Eight times (D) Sixteen times

Description : In a footstep bearing, if the speed of the shaft is doubled, then the torque required to overcome the viscous resistance will be (A) Double (B) Four times (C) Eight times (D) Sixteen times

Last Answer : Answer: Option A

The torque required to overcome viscous resistance of a collar bearing is (where R1 andR2 = External and internal radius of collar) (A) × - (B) × - (C) × - (D) × -

Description : The torque required to overcome viscous resistance of a collar bearing is (where R1 andR2 = External and internal radius of collar) (A) × - (B) × - (C) × - (D) × -

Last Answer : Answer: Option D

The power absorbed (in watts) in overcoming the viscous resistance of a footstep bearing is (A) 1800 t (B) 1800 t (C)(D) 3600

Description : The power absorbed (in watts) in overcoming the viscous resistance of a footstep bearing is (A) 1800 t (B) 1800 t (C) (D) 3600

Last Answer : Answer: Option B

Two shafts A and B are made of same material. The diameter of shaft A is twice that of B. The torque transmitted by shaft A will be (A) Twice that of B (B) Four times that of B (C) Eight times that of B (D) Sixteen times that of B

Description : Two shafts A and B are made of same material. The diameter of shaft A is twice that of B. The torque transmitted by shaft A will be (A) Twice that of B (B) Four times that of B (C) Eight times that of B (D) Sixteen times that of B

Last Answer : (C) Eight times that of B

Two shafts A and B are made of the same material. The diameter of the shaft A is twice as that of shaft B. The power transmitted by the shaft A will be ........... of shaft B. (a) twice (b) four times (c) eight times (d) sixteen times

Description : Two shafts A and B are made of the same material. The diameter of the shaft A is twice as that of shaft B. The power transmitted by the shaft A will be ........... of shaft B. (a) twice (b) four times (c) eight times (d) sixteen times

Last Answer : (c) eight times

If diameter of a shaft is doubled the power transmitted capacity will be a. Either twice or half b. Four times c. Eight times d. Same

Description : If diameter of a shaft is doubled the power transmitted capacity will be a. Either twice or half b. Four times c. Eight times d. Same

Last Answer : c. Eight times

The spacing of transverse reinforcement of column is decided by the following consideration. (A) The least lateral dimension of the column (B) Sixteen times the diameter of the smallest longitudinal reinforcing rods in the column (C) Forty-eight times the diameter of transverse reinforcement (D) All the above

Description : The spacing of transverse reinforcement of column is decided by the following consideration. (A) The least lateral dimension of the column (B) Sixteen times the diameter of the smallest longitudinal ... column (C) Forty-eight times the diameter of transverse reinforcement (D) All the above

Last Answer : Answer: Option D

Minimum pitch of transverse reinforcement in a column is (A) The least lateral dimension of the member (B) Sixteen times the smallest diameter of longitudinal reinforcement bar to be tied (C) Forty-eight times the diameter of transverse reinforcement (D) Lesser of the above three values

Description : Minimum pitch of transverse reinforcement in a column is (A) The least lateral dimension of the member (B) Sixteen times the smallest diameter of longitudinal reinforcement bar to be tied (C) Forty-eight times the diameter of transverse reinforcement (D) Lesser of the above three values

Last Answer : Answer: Option D

The spacing of stirrups in doubly reinforced beams should be least of the following (i)Least Lateral dimension (ii)Sixteen times the diameter of longitudinal steel (iii)Forty eight times the diameter of transverse reinforcement [ A ] i [ B ] i and ii [ C ] i and iii [ D ] i, ii and iii

Description : The spacing of stirrups in doubly reinforced beams should be least of the following (i)Least Lateral dimension (ii)Sixteen times the diameter of longitudinal steel (iii)Forty eight times the diameter of transverse reinforcement [ A ] i [ B ] i and ii [ C ] i and iii [ D ] i, ii and iii

Last Answer : [ D ] i, ii and iii

The spacing of stirrups in doubly reinforced beams should be least of the following (i)Least Lateral dimension (ii)Sixteen times the diameter of longitudinal steel (iii)Forty eight times the diameter of transverse reinforcement [ A ] i [ B ] i and ii [ C ] i and iii [ D ] i, ii and iii

Description : The spacing of stirrups in doubly reinforced beams should be least of the following (i)Least Lateral dimension (ii)Sixteen times the diameter of longitudinal steel (iii)Forty eight times the diameter of transverse reinforcement [ A ] i [ B ] i and ii [ C ] i and iii [ D ] i, ii and iii

Last Answer : [ D ] i, ii and iii

Footstep bearing is an axial load bearing. a) True b) Thrust load c) Shear load d) None of the listed

Description : Footstep bearing is an axial load bearing. a) True b) Thrust load c) Shear load d) None of the listed

Last Answer : b) Thrust load

A byte consists of A) One bit B) Four bits C) Eight bits D) Sixteen bits

Description : A byte consists of A) One bit B) Four bits C) Eight bits D) Sixteen bits

Last Answer : Answer : C

A byte consists of a. One bit b. Four bits c. Eight bits d. Sixteen bits

Description : A byte consists of a. One bit b. Four bits c. Eight bits d. Sixteen bits

Last Answer : Eight bits

A byte consists of a. One bit b. Four bits c. Eight bits d. Sixteen bits

Description : A byte consists of a. One bit b. Four bits c. Eight bits d. Sixteen bits

Last Answer : Eight bits

A byte consists of a. One bit b. Four bits c. Eight bits d. Sixteen bits

Description : A byte consists of a. One bit b. Four bits c. Eight bits d. Sixteen bits

Last Answer : c. Eight bits

A byte consists of a. One bit b. Four bits c. Eight bits d. Sixteen bits

Description : A byte consists of a. One bit b. Four bits c. Eight bits d. Sixteen bits

Last Answer : c. Eight bits

How many users are supported in IS-95 for each 1.25 MHz? a) Eight b) Sixty four c) Sixteen d) Twenty five

Description : How many users are supported in IS-95 for each 1.25 MHz? a) Eight b) Sixty four c) Sixteen d) Twenty five

Last Answer : b) Sixty four

Which of the following are not true for petroff’s equation? a) Shaft is considered concentric with the bearing b) Bearing is subjected to light load c) Is used to find coefficient of friction d) Frictional torque is given by fpr2l

Description : Which of the following are not true for petroff’s equation? a) Shaft is considered concentric with the bearing b) Bearing is subjected to light load c) Is used to find coefficient of friction d) Frictional torque is given by fpr2l

Last Answer : d) Frictional torque is given by fpr2l

A hollow shaft has an inner diameter of 3.7 cm and an outer diameter of 4.0 cm. A 1 kN-m torque is applied to this shaft. What is the shear stress at the mid-radius of this shaft? (a) 117Mpa (b) 178 Mpa (c) 286 Mpa (d) 363 Mpa

Description : A hollow shaft has an inner diameter of 3.7 cm and an outer diameter of 4.0 cm. A 1 kN-m torque is applied to this shaft. What is the shear stress at the mid-radius of this shaft? (a) 117Mpa (b) 178 Mpa (c) 286 Mpa (d) 363 Mpa

Last Answer : (c) 286 Mpa

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

A full journal bearing having clearance to radius ratio of 1/100, using a lubricant with μ=28×10-3 Pa s supports the shaft journal running at N = 2400 rpm If bearing pressure is 1.4 MPa, the Somerfield number is [IES-2001] (a) 8×10-3 (b) 8×10-5 (c) 0.48 (d) 0.48×10

Description : A full journal bearing having clearance to radius ratio of 1/100, using a lubricant with μ=28×10-3 Pa s supports the shaft journal running at N = 2400 rpm If bearing pressure is 1.4 MPa, the Somerfield number is [IES-2001] (a) 8×10-3 (b) 8×10-5 (c) 0.48 (d) 0.48×10

Last Answer : (a) S = (μN s /p) (r/c) 2

Consider tile following statements: [IES-1993; 2002; 2006] Radius of friction circle for a journal bearing depends upon 1. Coefficient of friction 2. Radius of the journal 3. Angular speed of rotation of the shaft Which of the statements given above are correct? (a) 1,2 and 3 (b) Only 1 and 2 (c) Only 2 and 3 (d) Only 1 and 3

Description : Consider tile following statements: [IES-1993; 2002; 2006] Radius of friction circle for a journal bearing depends upon 1. Coefficient of friction 2. Radius of the journal 3. Angular speed of rotation of the shaft Which of the ... ) 1,2 and 3 (b) Only 1 and 2 (c) Only 2 and 3 (d) Only 1 and 3

Last Answer : (b) Only 1 and 2

If we double the temperature of an ideal gas, then it's average kinetic energy will be A. halved B. triple the original C. fourth times of original D. doubled

Description : If we double the temperature of an ideal gas, then it's average kinetic energy will be A. halved B. triple the original C. fourth times of original D. doubled

Last Answer : doubled

How many quarters can be found in eight\sixteen?

Description : How many quarters can be found in eight\sixteen?

Last Answer : Two

Eight men can do a certain amount of work in 3 days. Sixteen men can do the same amount of work in 6 days. It is true or false.?

Description : Eight men can do a certain amount of work in 3 days. Sixteen men can do the same amount of work in 6 days. It is true or false.?

Last Answer : Eight men can do a certain amount of work in 3 days. Sixteen men can do the same amount of work in 6 days. It is true or false.?

In a simple economy of five producers and five consumers, there would be __________ transactions possible without an intermediary and __________ transactions possible with one intermediary. A)ten; twenty -five B)thirty; ten C)twenty -five; fifteen D)sixteen; eight E)twenty -five; ten

Description : In a simple economy of five producers and five consumers, there would be __________ transactions possible without an intermediary and __________ transactions possible with one intermediary. A)ten; twenty-five B)thirty; ten C)twenty-five; fifteen D)sixteen; eight E)twenty-five; ten

Last Answer : E)twenty-five; ten

How many voice channels are supported for each 30 KHz radio channel in IS-136? a) Eight b) Thirty c) Three d) Sixteen

Description : How many voice channels are supported for each 30 KHz radio channel in IS-136? a) Eight b) Thirty c) Three d) Sixteen

Last Answer : c) Three

A shaft of diameter d carries two discs at its two ends. The lowest torsional frequency is ω n . If the diameter is doubled, then the lowest torsional frequency becomes A 4ω n B ω n /2 C ω n /4 D 4ω n

Description : A shaft of diameter d carries two discs at its two ends. The lowest torsional frequency is ω n . If the diameter is doubled, then the lowest torsional frequency becomes A 4ω n B ω n /2 C ω n /4 D 4ω n

Last Answer : D 4ω n

A shaft of length l carries two discs at its two ends. The lowest torsional frequency is ω n . If the shaft length is doubled, then the lowest torsional frequency becomes A ω n /2 B ω n /√2 C √2ω n D 2ω n

Description : A shaft of length l carries two discs at its two ends. The lowest torsional frequency is ω n . If the shaft length is doubled, then the lowest torsional frequency becomes A ω n /2 B ω n /√2 C √2ω n D 2ω n

Last Answer : B ω n /√2

High strength concrete is used in pre-stressed member (A) To overcome high bearing stresses developed at the ends (B) To overcome bursting stresses at the ends (C) To provide high bond stresses (D) All the above

Description : High strength concrete is used in pre-stressed member (A) To overcome high bearing stresses developed at the ends (B) To overcome bursting stresses at the ends (C) To provide high bond stresses (D) All the above

Last Answer : Answer: Option D

A shaft is subjected to bending moment M and a torque T simultaneously. The ratio of the maximum bending stress to maximum shear stress developed in the shaft, is (A) M/T (B) T/M (C) 2M/T (D) 2T/M

Description : A shaft is subjected to bending moment M and a torque T simultaneously. The ratio of the  maximum bending stress to maximum shear stress developed in the shaft, is  (A) M/T (B) T/M (C) 2M/T (D) 2T/M

Last Answer : (C) 2M/T

If the strain energy stored per unit volume in a hollow shaft subjected to a pure torque when t attains maximum shear stress fs the ratio of inner diameter to outer diameter, is 17/64 (fs/N) (A) 1/2 (B) 1/3 (C) 1/4 (D) 1/5

Description : If the strain energy stored per unit volume in a hollow shaft subjected to a pure torque  when t attains maximum shear stress fs  the ratio of inner diameter to outer diameter, is 17/64  (fs/N)  (A) 1/2  (B) 1/3  (C) 1/4  (D) 1/5

Last Answer : (C) 1/4 

shaft subjected to a bending moment M and a torque T, experiences (A) Maximum bending stress = 32M d 3 (B) Maximum shear stress = 16 T d 3 (C) Both (a) and (b) (D) Neither (a) nor (b)

Description :  shaft subjected to a bending moment M and a torque T, experiences  (A) Maximum bending stress = 32M d 3 (B) Maximum shear stress = 16 T d 3 (C) Both (a) and (b)  (D) Neither (a) nor (b)

Last Answer : (C) Both (a) and (b) 

A shaft 9 m long is subjected to a torque 30 t-m at a point 3 m distant from either end. The reactive torque at the nearer end will be (A) 5 tonnes metre (B) 10 tonnes metre (C) 15 tonnes metre (D) 20 tonnes metre

Description : A shaft 9 m long is subjected to a torque 30 t-m at a point 3 m distant from either end. The reactive torque at the nearer end will be (A) 5 tonnes metre (B) 10 tonnes metre (C) 15 tonnes metre (D) 20 tonnes metre

Last Answer : (D) 20 tonnes metre

A solid circular shaft of diameter d is subjected to a torque T. The maximum normal stress induced in the shaft, is (A) Zero (B) 16T/ 3 (C) 32T/ 3 (D) None of these

Description : A solid circular shaft of diameter d is subjected to a torque T. The maximum normal stress induced  in the shaft, is  (A) Zero  (B) 16T/ 3 (C) 32T/ 3 (D) None of these

Last Answer : (B) 16T/ 3

In a shaft shear stress intensity at a point is not (A) Directly proportional to the distance from the axis (B) Inversely proportional to the distance from the axis (C) Inversely proportional to the polar moment of inertia (D) Directly proportional to the applied torque

Description : In a shaft shear stress intensity at a point is not (A) Directly proportional to the distance from the axis (B) Inversely proportional to the distance from the axis (C) Inversely proportional to the polar moment of inertia (D) Directly proportional to the applied torque

Last Answer : (B) Inversely proportional to the distance from the axis

If the radius of a circle is doubled, what about its area?(a) Area is 2 times (b) Area is 4 times (c) Area is half (d) does not change

Description : If the radius of a circle is doubled, what about its area?(a) Area is 2 times (b) Area is 4 times (c) Area is half (d) does not change

Last Answer : (b) Area is 4 times

The anchorage value of a hook is assumed sixteen times the diameter of the bar if the angle of the bend, is (A) 30° (B) 40° (C) 45° (D) All the above

Description : The anchorage value of a hook is assumed sixteen times the diameter of the bar if the angle of the bend, is (A) 30° (B) 40° (C) 45° (D) All the above

Last Answer : Answer: Option D

If in a cylinder, radius is doubled and height is halved, then find its curved surface area. -Maths 9th

Description : If in a cylinder, radius is doubled and height is halved, then find its curved surface area. -Maths 9th

Last Answer : Let r and h be radius and height of the cyclinder, then C.S.A. = 2πrh Now, radius is doubled and height is halved. ∴ New radius = 2r and new height = h / 2 New C.S.A. = 2π × 2r × h / 2 = 2πrh .

A spherical ball is divided into two equal halves. If the curved surface area of each half is 56.57 cm?, find the volume of the spherical ball.11531/cylinder-radius-halved-and-height-doubled-then-find-volume-with-respect-original-volume -Maths 9th

Description : A spherical ball is divided into two equal halves. If the curved surface area of each half is 56.57 cm?, find the volume of the spherical ball.11531/cylinder-radius-halved-and-height-doubled-then-find-volume-with-respect-original-volume -Maths 9th

Last Answer : since curved surface of half of the spherical ball = 56.57 cm2 ∴ 2πr2 = 56.57 ⇒ r2 = 56.57 / 2 × 3.14 = 9 ⇒ r = 3 cm Now, volume of spherical ball = 4 / 3 πr3 = 4 / 3 × 3.14 × 3 × 3 × 3 = 113.04 cm3

If in a cylinder, radius is doubled and height is halved, then find its curved surface area. -Maths 9th

Description : If in a cylinder, radius is doubled and height is halved, then find its curved surface area. -Maths 9th

Last Answer : Let r and h be radius and height of the cyclinder, then C.S.A. = 2πrh Now, radius is doubled and height is halved. ∴ New radius = 2r and new height = h / 2 New C.S.A. = 2π × 2r × h / 2 = 2πrh .

A spherical ball is divided into two equal halves. If the curved surface area of each half is 56.57 cm?, find the volume of the spherical ball.11531/cylinder-radius-halved-and-height-doubled-then-find-volume-with-respect-original-volume -Maths 9th

Description : A spherical ball is divided into two equal halves. If the curved surface area of each half is 56.57 cm?, find the volume of the spherical ball.11531/cylinder-radius-halved-and-height-doubled-then-find-volume-with-respect-original-volume -Maths 9th

Last Answer : since curved surface of half of the spherical ball = 56.57 cm2 ∴ 2πr2 = 56.57 ⇒ r2 = 56.57 / 2 × 3.14 = 9 ⇒ r = 3 cm Now, volume of spherical ball = 4 / 3 πr3 = 4 / 3 × 3.14 × 3 × 3 × 3 = 113.04 cm3

In a cylinder, radius is doubled and height is halved, then curved surface area will be -Maths 9th

Description : In a cylinder, radius is doubled and height is halved, then curved surface area will be -Maths 9th

Last Answer : The curved surface area will remain same. So, there is no change in the curved surface area of cylinder . Hence the curved surface area will remain same.

In a cylinder, radius is doubled and height is halved, then curved surface area will be -Maths 9th

Description : In a cylinder, radius is doubled and height is halved, then curved surface area will be -Maths 9th

Last Answer : The curved surface area will remain same. So, there is no change in the curved surface area of cylinder . Hence the curved surface area will remain same.

A circular flexible loop of wire of radius r carrying a current I is placed in a uniform magnetic field B . If B is doubled, then tension in the loop

Description : A circular flexible loop of wire of radius r carrying a current I is placed in a uniform magnetic field B . If B is doubled, then tension in the loop

Last Answer : A circular flexible loop of wire of radius r carrying a current I is placed in a uniform magnetic field ... is doubled C. is halved D. becomes 4 times

If radius of a batch basket centrifuge is halved & the r.p.m. is doubled, then the (A) Linear speed of the basket is doubled (B) Linear speed of the basket is halved (C) Centrifugal force is doubled (D) Capacity of centrifuge is increased

Description : If radius of a batch basket centrifuge is halved & the r.p.m. is doubled, then the (A) Linear speed of the basket is doubled (B) Linear speed of the basket is halved (C) Centrifugal force is doubled (D) Capacity of centrifuge is increased

Last Answer : (C) Centrifugal force is doubled

A proton moves in a uniform magnetic field in a circular path of radius R. If the energy of proton is doubled then the new radius becomes a) R √2 b) 2R c) R 2 d) √2 R

Description : A proton moves in a uniform magnetic field in a circular path of radius R. If the energy of proton is doubled then the new radius becomes a) R √2 b) 2R c) R 2 d) √2 R

Last Answer : d) √2 R

If the diameter of a capillary is doubled, then the rise of water in it will be – (1) two times (2) half (3) four times (4) no change

Description : If the diameter of a capillary is doubled, then the rise of water in it will be – (1) two times (2) half (3) four times (4) no change

Last Answer : (2) half Explanation: Radius of a capillary tube is inversely proportional to the height of the liquid column. So, if radius of the tube is doubled, rise of level of water will becomes half ... to flow in narrow spaces without the assistance of, and in opposition to external forces like gravity.