A stream tube is that, which has __________ cross-section entirely bounded by stream lines. (A) A circular (B) Any convenient (C) A small (D) A large

A stream tube is that, which has __________ cross-section entirely
bounded by stream lines.
(A) A circular
(B) Any convenient
(C) A small
(D) A large
by

1 Answer

Answer :

(B) Any convenient
by

Related questions

The distribution of shear stress in a stream of fluid in a circular tube is(A) Linear with radius for turbulent flow only(B) Linear with radius for laminar flow only(C) Linear with radius for both laminar & turbulent flow(D) Parabolic with radius for both laminar & turbulent flow

Description : The distribution of shear stress in a stream of fluid in a circular tube is (A) Linear with radius for turbulent flow only (B) Linear with radius for laminar flow only (C) Linear with radius for both laminar & turbulent flow (D) Parabolic with radius for both laminar & turbulent flow

Last Answer : (C) Linear with radius for both laminar & turbulent flow

Columns of given length, cross-section and material have different values of buckling loads for different end conditions. The strongest column is one whose (A) One end is fixed and other end is hinged (B) Both ends are hinged or pin jointed (C) One end is fixed and the other end entirely free (D) Both the ends are fixed

Description : Columns of given length, cross-section and material have different values of buckling loads for different end conditions. The strongest column is one whose (A) One end is fixed and other end is hinged (B) Both ... (C) One end is fixed and the other end entirely free (D) Both the ends are fixed

Last Answer : (D) Both the ends are fixed

Columns of given length, cross-section and material have different values of buckling loads for different end conditions. The strongest column is one whose (a) One end is fixed and other end is hinged (b) Both ends are hinged or pin jointed (c) One end is fixed and the other end entirely free (d) Both the ends are fixed

Description : Columns of given length, cross-section and material have different values of buckling loads for different end conditions. The strongest column is one whose (a) One end is fixed and other end is hinged (b) ... (c) One end is fixed and the other end entirely free (d) Both the ends are fixed

Last Answer : (d) Both the ends are fixed

In a free vortex, the (A) Velocity changes linearly with radial distance (B) Flow is necessarily rotational (C) Radial component of velocity is same everywhere (D) Stream lines are not circular

Description : In a free vortex, the (A) Velocity changes linearly with radial distance (B) Flow is necessarily rotational (C) Radial component of velocity is same everywhere (D) Stream lines are not circular

Last Answer : (A) Velocity changes linearly with radial distance

Lower BWG means __________ of the tube. (A) Lower thickness (B) Lower cross-section (C) Outer diameter (D) Inner diameter

Description : Lower BWG means __________ of the tube. (A) Lower thickness (B) Lower cross-section (C) Outer diameter (D) Inner diameter

Last Answer : (B) Lower cross-section

Metals are good conductors of electricity because they have: (a) Large number of bounded electrons (b) Small number of electrons (c) Large number of free electrons (d) Small number of free electrons

Description : Metals are good conductors of electricity because they have: (a) Large number of bounded electrons (b) Small number of electrons (c) Large number of free electrons (d) Small number of free electrons

Last Answer : (c) Large number of free electrons

Vena-contracta formed during flow of a liquid through an orificemeter has (A) Minimum liquid cross-section (B) More diameter compared to orifice diameter (C) Minimum velocity of fluid stream (D) None of these

Description : Vena-contracta formed during flow of a liquid through an orificemeter has (A) Minimum liquid cross-section (B) More diameter compared to orifice diameter (C) Minimum velocity of fluid stream (D) None of these

Last Answer : (A) Minimum liquid cross-section

A stream line is (A) Fixed in space in steady flow (B) Always the path of particle (C) Drawn normal to the velocity vector at every point (D) A line connecting the mid points of flow cross-section

Description : A stream line is (A) Fixed in space in steady flow (B) Always the path of particle (C) Drawn normal to the velocity vector at every point (D) A line connecting the mid points of flow cross-section

Last Answer : (A) Fixed in space in steady flow

A student coming out cell fractionation of a tissue and forgot to label his tubes. The contents of one tube when studied showed organelles bounded by

Description : A student coming out cell fractionation of a tissue and forgot to label his tubes. The contents of one tube when studied showed organelles bounded by

Last Answer : A student coming out cell fractionation of a tissue and forgot to label his tubes. The contents of ... . SER B. Chloroplast C. Lysosome D. Perosisome

A control rod (A) Should have small absorption cross-section (B) Is generally made of boron, hafnium or cadmium (C) Should have large absorption cross-section (D) Both (B) and (C)

Description : A control rod (A) Should have small absorption cross-section (B) Is generally made of boron, hafnium or cadmium (C) Should have large absorption cross-section (D) Both (B) and (C)

Last Answer : (D) Both (B) and (C)

In case of laminar flow of fluid through a circular pipe, the (A) Shear stress over the cross-section is proportional to the distance from the surface of the pipe (B) Surface of velocity distribution is a paraboloid of revolution, whose volume equals half the volume of circumscribing cylinder (C) Velocity profile varies hyperbolically and the shear stress remains constant over the cross-section (D) Average flow occurs at a radial distance of 0.5 r from the centre of the pipe (r = pipe radius)

Description : In case of laminar flow of fluid through a circular pipe, the (A) Shear stress over the cross-section is proportional to the distance from the surface of the pipe (B) Surface of velocity distribution is a ... occurs at a radial distance of 0.5 r from the centre of the pipe (r = pipe radius)

Last Answer : (B) Surface of velocity distribution is a paraboloid of revolution, whose volume equals half the volume of circumscribing cylinder

For turbulent flow of Newtonian fluid in a circular cross-section pipe, the ratio of maximum to average fluid velocity is (A) 0.5 (B) 1 (C) 0.66 (D) < 0.5

Description : For turbulent flow of Newtonian fluid in a circular cross-section pipe, the ratio of maximum to average fluid velocity is (A) 0.5 (B) 1 (C) 0.66 (D) < 0.5

Last Answer : (B) 1

Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot (A) Piercing (B) Spinning (C) Drawing (D) Extrusion

Description : Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot (A) Piercing (B) Spinning (C) Drawing (D) Extrusion

Last Answer : Option B

Consider the following statements : 1. There is no flow across a streamline 2. Streamline spacing varies directly with velocity at the section 3. Streamlines do not cross 4. In steady flow, streamline pattern does not change with time Which of these statements in respect of stream flow pattern are correct? (a) 1, 2, 3 and 4 (b) 1 and 2 only (c) 1, 3 and 4 only (d) 2, 3 and 4 only

Description : Consider the following statements : 1. There is no flow across a streamline 2. Streamline spacing varies directly with velocity at the section 3. Streamlines do not cross 4. In steady flow, streamline pattern does not change with ... 4 (b) 1 and 2 only (c) 1, 3 and 4 only (d) 2, 3 and 4 only

Last Answer : (c) 1, 3 and 4 only

The area bounded by the lines `y = 2, x =1, x = a` and the curve `y = f(x),` which cuts the last two lines above first line for all `a gt= 1,` is equa

Description : The area bounded by the lines `y = 2, x =1, x = a` and the curve `y = f(x),` which cuts the last two lines above first line for all `a gt= 1,` is equa

Last Answer : The area bounded by the lines `y = 2, x =1, x = a` and the curve `y = f(x),` which cuts the last two ... , x ge 1` C. ` 2 sqrtx , x ge 1` D. None

The coordinates of the vertices of region bounded by lines 3x - y = 5; x+ 2y = 4 and Y-axis are: (a) A(2,0); B(5,0) and C(1,2) (b) A(2,0); B(-5,0) and C(1,2) (c) A(0,2); B(0,-5) and C(2,1) (d) A(0,2); B(0,5) and C(2,1)

Description : The coordinates of the vertices of region bounded by lines 3x - y = 5; x+ 2y = 4 and Y-axis are: (a) A(2,0); B(5,0) and C(1,2) (b) A(2,0); B(-5,0) and C(1,2) (c) A(0,2); B(0,-5) and C(2,1) (d) A(0,2); B(0,5) and C(2,1)

Last Answer : (c) A(0,2); B(0,-5) and C(2,1)

The area of the triangular region, in the following figure, bounded by the lines 2x-y=1 and x+2y=13 and Y-axis is (a) 11.25 sq.units (b) 9.75 sq.units (c) 16.25 sq,units (d) 18.75 sq.units

Description : The area of the triangular region, in the following figure, bounded by the lines 2x-y=1 and x+2y=13 and Y-axis is (a) 11.25 sq.units (b) 9.75 sq.units (c) 16.25 sq,units (d) 18.75 sq.units

Last Answer : (a) 11.25 sq.units

Consider a window bounded by the lines : x = 0; y= 0; x = 5 and y = 3. The line segment joining (–1, 0) and (4, 5), if clipped against this window will connect the points (A) (0, 1) and (2, 3) (B) (0, 1) and (3, 3) (C) (0, 1) and (4, 3) (D) (0, 1) and (3, 2)

Description : Consider a window bounded by the lines : x = 0; y= 0; x = 5 and y = 3. The line segment joining (–1, 0) and (4, 5), if clipped against this window will connect the points (A) (0, 1) and (2, 3) (B) (0, 1) and (3, 3) (C) (0, 1) and (4, 3) (D) (0, 1) and (3, 2)

Last Answer : (A) (0, 1) and (2, 3)

The longitudinal section of the surface of bubble tube is (A) Straight (B) Circular (C) Parabolic (D) Elliptic

Description : The longitudinal section of the surface of bubble tube is  (A) Straight  (B) Circular  (C) Parabolic  (D) Elliptic 

Last Answer : (B) Circular

Baffles in the shell side of a shell and tube heat exchanger (A) Increase the cross-section of the shell side liquid (B) Force the liquid to flow parallel to the bank (C) Increase the shell side heat transfer co-efficient (D) Decrease the shell side heat transfer co-efficient

Description : Baffles in the shell side of a shell and tube heat exchanger (A) Increase the cross-section of the shell side liquid (B) Force the liquid to flow parallel to the bank (C) Increase the shell side heat transfer co-efficient (D) Decrease the shell side heat transfer co-efficient

Last Answer : (C) Increase the shell side heat transfer co-efficient

Yokes with rectangular cross-section are used for (a) small capacity transformers (b) medium capacity transformers (c) large capacity transformers (d) any of the above

Description : Yokes with rectangular cross-section are used for (a) small capacity transformers (b) medium capacity transformers (c) large capacity transformers (d) any of the above

Last Answer : (a) small capacity transformers

In a flow net (A) Flow lines and equipotential lines cross each other at right angles (B) Fields are rectangles whose length is twice the breadth (C) Smaller the dimensions of the field, smaller will be the hydraulic gradient and velocity of flow through it (D) For homogeneous soil, the curves are smooth and circular

Description : In a flow net (A) Flow lines and equipotential lines cross each other at right angles (B) Fields are rectangles whose length is twice the breadth (C) Smaller the dimensions of the field, ... gradient and velocity of flow through it (D) For homogeneous soil, the curves are smooth and circular

Last Answer : Option A

In Fig. the circular cross-section of tunnel is shown. A 100 W almp is lighted at the heighest point S. The diameter of the tunnel is 2m. Compare the

Description : In Fig. the circular cross-section of tunnel is shown. A 100 W almp is lighted at the heighest point S. The diameter of the tunnel is 2m. Compare the

Last Answer : In Fig. the circular cross-section of tunnel is shown. A 100 W almp is lighted at the heighest point ... lowest point P and the point Q of the tunnel.

A metal wire of circular cross-section has a resistance `R_(1)`. The wire is now stretched without breaking, so that its length is doubled and the den

Description : A metal wire of circular cross-section has a resistance `R_(1)`. The wire is now stretched without breaking, so that its length is doubled and the den

Last Answer : A metal wire of circular cross-section has a resistance `R_(1)`. The wire is now stretched without breaking, so that its ... 2` C. `4 : 1` D. `1 : 4`

If is the diameter of upper circular portion, the area of cross-section of a standard egg shaped sewer, is A. D² B. D² C. D² D. D²

Description : If is the diameter of upper circular portion, the area of cross-section of a standard egg shaped sewer, is A. D² B. D² C. D² D. D²

Last Answer : ANS: A

The most efficient cross section of sewers in a separate sewerage system is A. Parabolic B. Circular C. Rectangular D. New egged

Description : The most efficient cross section of sewers in a separate sewerage system is A. Parabolic B. Circular C. Rectangular D. New egged

Last Answer : ANS: B

The suitable cross-section of sewers to carry combined flow, is A. Circular B. Egg shaped C. Rectangular D. Horse shoe shaped

Description : The suitable cross-section of sewers to carry combined flow, is A. Circular B. Egg shaped C. Rectangular D. Horse shoe shaped

Last Answer : ANS: B

The most efficient cross-section of sewers in a combined sewerage system is A. Parabolic B. Circular C. Rectangular D. New egged

Description : The most efficient cross-section of sewers in a combined sewerage system is A. Parabolic B. Circular C. Rectangular D. New egged

Last Answer : ANS: B

The cross section of flywheel arm is 1. I section 2. Rectangular 3. Elliptical 4. Circular

Description : The cross section of flywheel arm is 1. I section 2. Rectangular 3. Elliptical 4. Circular

Last Answer : 3. Elliptical

The cross-section of the flywheel arm is, (A) I section (B) Rectangular (C) Elliptical (D) Circular

Description : The cross-section of the flywheel arm is, (A) I section (B) Rectangular (C) Elliptical (D) Circular

Last Answer : (C) Elliptical

The ratio of the area of cross-section of a circular section to the area of its core, is (A) 4 (B) 8 (C) 12 (D) 16

Description : The ratio of the area of cross-section of a circular section to the area of its core, is  (A) 4  (B) 8  (C) 12  (D) 16 

Last Answer : (D) 16 

The region of the cross-section of a column in which compressive load may be applied without producing any tensile stress, is known as the core of the cross-section. In circular columns the radius of the core, is (A) One-half of the radius (B) One-third of the radius (C) One-quarter of the radius (D) One-fifth of the radius

Description : The region of the cross-section of a column in which compressive load may be applied without producing any tensile stress, is known as the core of the cross-section. In circular columns the radius of the core, ... One-third of the radius (C) One-quarter of the radius (D) One-fifth of the radius

Last Answer : (C) One-quarter of the radius

The length of a column, having a uniform circular cross-section of 7.5 cm diameter and whose ends are hinged, is 5 m. If the value of E for the material is 2100 tonnes/cm2 , the permissible maximum crippling load will be (A) 1.288 tonnes (B) 12.88 (C) 128.8 tonnes (D) 288.0

Description : The length of a column, having a uniform circular cross-section of 7.5 cm diameter and whose ends are hinged, is 5 m. If the value of E for the material is 2100 tonnes/cm2 , the permissible maximum crippling load will be (A) 1.288 tonnes (B) 12.88 (C) 128.8 tonnes (D) 288.0

Last Answer : (B) 12.88

The areas of cross-section of a square beam and a circular beam subjected to equal bending moments, are same. (A) Circular beam is more economical (B) Square beam is more economical (C) Both the beams are equally strong (D) Both the beams are equally economical

Description : The areas of cross-section of a square beam and a circular beam subjected to equal bending  moments, are same.  (A) Circular beam is more economical  (B) Square beam is more economical  (C) Both the beams are equally strong  (D) Both the beams are equally economical 

Last Answer : (B) Square beam is more economical 

The following assumption is not true in the theory of pure torsion: (A) The twist along the shaft is uniform (B) The shaft is of uniform circular section throughout (C) Cross-section of the shaft, which is plane before twist remains plane after twist (D) All radii get twisted due to torsion

Description : The following assumption is not true in the theory of pure torsion:  (A) The twist along the shaft is uniform  (B) The shaft is of uniform circular section throughout  (C) Cross- ... , which is plane before twist remains plane after twist  (D) All radii get twisted due to torsion 

Last Answer : (D) All radii get twisted due to torsion 

A furrow cross-section in a country plough is commonly a) Circular b) Triangular c) Rectangular d) Trapezoidal

Description : A furrow cross-section in a country plough is commonly a) Circular b) Triangular c) Rectangular d) Trapezoidal

Last Answer : ans b

The region of the cross-section of a column in which compressive load may be applied without producing any tensile stress, is known as the core of the cross-section. In circular columns the radius of the core, is (a) One-half of the radius (b) One-third of the radius (c) One-quarter of the radius (d) One-fifth of the radius

Description : The region of the cross-section of a column in which compressive load may be applied without producing any tensile stress, is known as the core of the cross-section. In circular columns the radius of the core, ... One-third of the radius (c) One-quarter of the radius (d) One-fifth of the radius

Last Answer : (c) One-quarter of the radius

The length of a column, having a uniform circular cross-section of 7.5 cm diameter and whose endsare hinged, is 5 m. If the value of E for the material is 2100 tonnes/cm2, the permissible maximumcrippling load will be (a) 1.288 tonnes (b) 12.88 (c) 128.8 tonnes (d) 288.0

Description : The length of a column, having a uniform circular cross-section of 7.5 cm diameter and whose endsare hinged, is 5 m. If the value of E for the material is 2100 tonnes/cm2, the permissible maximumcrippling load will be (a) 1.288 tonnes (b) 12.88 (c) 128.8 tonnes (d) 288.0

Last Answer : (b) 12.88

A hollow prismatic beam of circular section is subjected to a torsional moment. The maximum shear stress occurs at (a) inner wall of cross section (b) middle of thickness (c) outer surface of shaft (d) none of these

Description : A hollow prismatic beam of circular section is subjected to a torsional moment. The maximum shear stress occurs at (a) inner wall of cross section (b) middle of thickness (c) outer surface of shaft (d) none of these

Last Answer : (c) outer surface of shaft

The ratio of maximum shear stress to average shear stress is 4/3 in _______ a. circular cross-section b. rectangular cross-section c. square cross-section d. all of the above

Description : The ratio of maximum shear stress to average shear stress is 4/3 in _______ a. circular cross-section b. rectangular cross-section c. square cross-section d. all of the above

Last Answer : a. circular cross-section

Sewer pipes are designed for maximum discharge with 25% to 33% vacant cross-sectional area for A. Unexpected large scale infiltration of stream water B. Unexpected increase in the population C. Under estimates of maximum and average flows D. All of the above

Description : Sewer pipes are designed for maximum discharge with 25% to 33% vacant cross-sectional area for A. Unexpected large scale infiltration of stream water B. Unexpected increase in the population C. Under estimates of maximum and average flows D. All of the above

Last Answer : ANS: D

Under the electron microscope, you observe a cell with three different types of large organelles, each bounded by two membranes. The cell is most likely (a) A plant (b) An animal (c) A fungus (d) A bacterium

Description : Under the electron microscope, you observe a cell with three different types of large organelles, each bounded by two membranes. The cell is most likely (a) A plant (b) An animal (c) A fungus (d) A bacterium

Last Answer : Ans:(a)

An electric current of `2.0 mu A` exists in a discharge tube. How much charge flows across a cross-section of the tube in 5 minutes ?

Description : An electric current of `2.0 mu A` exists in a discharge tube. How much charge flows across a cross-section of the tube in 5 minutes ?

Last Answer : An electric current of `2.0 mu A` exists in a discharge tube. How much charge flows across a cross-section of the tube in 5 minutes ?

A liquid flows through a capillary tube. Then the velocity of the liquid is (a) Maximum at the walls of the tubs (b) Constant at all points in the cross section of the tube (c) Maximum along the axis of the tube (d) Independent of the pressure-head

Description : A liquid flows through a capillary tube. Then the velocity of the liquid is (a) Maximum at the walls of the tubs (b) Constant at all points in the cross section of the tube (c) Maximum along the axis of the tube (d) Independent of the pressure-head

Last Answer : Ans:(c)

Most of the American states are bounded by __________ (A) the Pacific Ocean. (B) the Atlantic Ocean. (C) the Gulf of Mexico. (D) all of them.

Description : Most of the American states are bounded by __________ (A) the Pacific Ocean. (B) the Atlantic Ocean. (C) the Gulf of Mexico. (D) all of them.

Last Answer : (D) all of them. 

An ideal tower packing should not (A) Have low weight per unit volume (B) Have large surface area per unit volume (C) Have large free cross-section (D) Hold up large amount of liquid in the packing

Description : An ideal tower packing should not (A) Have low weight per unit volume (B) Have large surface area per unit volume (C) Have large free cross-section (D) Hold up large amount of liquid in the packing

Last Answer : (D) Hold up large amount of liquid in the packing

Which of the following is an undesirable property in a tower packing? (A) Large surface per unit volume (B) Large free cross-section (C) Low weight per unit volume (D) Large weight of liquid retained

Description : Which of the following is an undesirable property in a tower packing? (A) Large surface per unit volume (B) Large free cross-section (C) Low weight per unit volume (D) Large weight of liquid retained

Last Answer : (D) Large weight of liquid retained

A process stream of dilute aqueous solution flowing at the rate of10 Kg.s -1 is to be heated. Steam condensate at 95°C is available for heating purpose, also at a rate of 10 Kg.s -1 . A 1 - 1 shell and tube heat exchanger is available. The best arrangement is (A) Counter flow with process stream on shell side (B) Counter flow with process stream on tube side (C) Parallel flow with process stream on shell side (D) Parallel flow with process stream on tube side

Description : A process stream of dilute aqueous solution flowing at the rate of10 Kg.s -1 is to be heated. Steam condensate at 95°C is available for heating purpose, also at a rate of 10 Kg.s -1 . A 1 ... side (C) Parallel flow with process stream on shell side (D) Parallel flow with process stream on tube side

Last Answer : (A) Counter flow with process stream on shell side

The continuity equation (A) Relates mass flow rate along a stream tube (B) Relates work and energy (C) Stipulates that Newton's second law of motion must be satisfied at every point in the fluid (D) None of these

Description : The continuity equation (A) Relates mass flow rate along a stream tube (B) Relates work and energy (C) Stipulates that Newton's second law of motion must be satisfied at every point in the fluid (D) None of these

Last Answer : (A) Relates mass flow rate along a stream tube

The high voltage winding is usually which of the following type ? (a) Cylindrical winding with circular conductors (b) Cross-over winding with either circular or small rectangular conductors (c) Continuous disc type winding with rectangular conductors (d) All of the above types

Description : The high voltage winding is usually which of the following type ? (a) Cylindrical winding with circular conductors (b) Cross-over winding with either circular or small rectangular conductors (c) Continuous disc type winding with rectangular conductors (d) All of the above types

Last Answer : (d) All of the above types