Description : 1. According to which article untouchability is abolished and its practice is punishable? 2. The author of the controversial book Lajja' is a citizen of which country? 3. Which game is not ... Perihelion)? 20. When did the battle which is the story of Mahabharata most probably take place ?
Last Answer : Answer : 1. Article 17 2. Bangladesh 3. Cricket 4. Consequent 5. Lala Hardayal 6. Kerosene 7. Silicon 8. Chief Justice of India 9. Barren Island 10. Sikandar Lodi 11. Bank of Hindustan 12. Billiards 13. ... . 2010 17. Ministry of Home Affairs 18. Beethovan L.V. 19. January 3rd 20. Around 1000 B. C
Description : In a semi-batch reactor, (A) Mixing takes place in axial direction only (B) Velocity of reaction can be controlled (C) Condition similar to plug flow reactor exists (D) Residence time is constant
Last Answer : (B) Velocity of reaction can be controlled
Description : It is a machine used for placing the seeds in a continuous stream in furrows at uniform rate and at controlled depth with an arrangement of covering the seeds with soil. a. Seed tube b. Seed dropper d. None of the above.
Last Answer : Ans - c. Seed drill
Description : What is the structure of the heart which allows the blood to flow in only one direction?
Last Answer : Our heart is a four chambered muscular pump whose sole task is to pump blood round our bodies. There are valves that let blood flow in one direction, but prevent the blood being forced backwards.
Description : Organisms called methanogens are most abundant in a (a) sulphur rock (b) cattle yard (c) polluted stream (d) hot spring.
Last Answer : (b) cattle yard
Description : Water is flowing in a stream with velocity 5 km/hr in an easterly direction relative to the shore. Speed of a boat relative to still
Last Answer : Water is flowing in a stream with velocity 5 km/hr in an easterly direction relative to the ... , with what velocity will the boat actually travel?
Description : During seepage through a soil, direction of seepage is always (A) Parallel to equipotential lines (B) Perpendicular to stream lines (C) Perpendicular to equipotential lines (D) None of these
Last Answer : Answer: Option C
Description : The imaginary line drawn in the fluid in such a way that the tangent to any point gives the direction of motion at that point, is known as (A) Path line (B) Stream line (C) Steak line (D) Potential line
Last Answer : Answer: Option B
Description : Seepage through foundation in an earthen dam is controlled by providing (A) Rock toe (B) Horizontal blanket (C) Impervious cut off (D) Chimney drain
Description : If there is no impervious boundary at the bottom of a hydraulic structure, stream lines tend to follow: (A) A straight line (B) A parabola (C) A semi-ellipse (D) A semi-circle
Last Answer : (C) A semi-ellipse
Description : A structure used to dam up a stream or river over which the water flows is called (A) Orifice (B) Notch (C) Weir (D) Dam
Description : Direction of plant growth is controlled by: a. Auxins b. Gibberellins c. Kinins d. All of above
Last Answer : Auxins
Description : Continuous sewage flow into a stream would lead to
Last Answer : Continuous sewage flow into a stream would lead to A. Eutrophication B. Algal bloom C. Depletion of oxygen D. Increase in temperature .
Description : The presence of air bubble in blood stream is dangerous to life because- (1) Air combines with blood forming a complex (2) The flow of blood increases manifold (3) The flow of blood is obstructed (4) The pressure of blood increases manifold
Last Answer : (3) The flow of blood is obstructed Explanation: The presence of air bubble in blood, known as air embolism occludes blood vessels. The flow of blood is obstructed causing strokes, heart attacks, ... blood from reaching the target organ and cause ischemia. It can lead to heart attack and death.
Description : __________ employs a set of screen across a flow channel for the separation of dirt/rust from a flowing liquid stream. (A) Thickener (B) Classifier (C) Strainer (D) Clarifier
Last Answer : (C) Strainer
Description : Which of the following material of construction may be recommended by a chemical engineer for handling a gaseous chlorine (dry or wet) stream in a fluid flow system? (A) High silicon iron, silicon rubber ... Mild steel and stainless steel (C) Cast iron, tin and aluminium (D) Copper, nickel and Monel
Last Answer : (A) High silicon iron, silicon rubber, Kel-F and Teflon
Description : Which of the following is not fixed by the process requirements, in the design of absorbers? (A) Flow rate of the entering gas (B) Composition of the entering liquid (C) Terminal concentrations of gas stream (D) None of these
Last Answer : (D) None of these
Description : Which of the following statements is correct regarding the internal rate of return (IRR) method? A. Each project has a unique internal rate of return. B. As long as you are not dealing with ... of return is rarely used by firms today because of the ease at which net present value is calculated
Last Answer : D. The internal rate of return is rarely used by firms today because of the ease at which net present value is calculated.
Description : Which of the following statements is correct regarding the internal rate of return (IRR) method? A. Each project has a unique internal rate of return. B. As long as you are not dealing with ... of return is rarely used by firms today because of the ease at which net present value is calculated.
Description : Which of the following statements is correct regarding the internal rate of return (IRR) method? A. Each project has a unique internal rate of return B. As long as you are not dealing with ... of return is rarely used by firms today because of the ease at which net present value is calculated
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
Description : The Stoke's stream function applies to the (A) Irrotational flow only (B) Ideal/non i viscous fluids only (C) Cases of axial symmetry (D) None of these
Last Answer : (C) Cases of axial symmetry
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
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
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
Description : For steady ideal fluid flow, the Bernoulli's equation states that the (A) Velocity is constant along a stream line (B) Energy is constant throughout the fluid (C) Energy is constant along a stream line, but may vary across stream lines (D) None of these
Last Answer : (C) Energy is constant along a stream line, but may vary across stream lines
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
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
Description : Potential flow is characterised by the (A) Irrotational and frictionless flow (B) Irrotational and frictional flow (C) One in which dissipation of mechanical energy into heat occurs (D) Formation of eddies within the stream
Last Answer : (A) Irrotational and frictionless flow
Description : An isothermal aqueous phase reversible reaction, P ⇌ R, is to be carried out in a mixed flow reactor. The reaction rate in k.mole/m3 .h is given by, r = 0.5CP - 0.125CR. A stream containing only P enters the reactor. The ... (in hours) for 40% conversion of P is (A) 0.80 (B) 1.33 (C) 1.60 (D) 2.67
Last Answer : (C) 1.60
Description : In a continuous flow stirred tank reactor, the composition of the exit stream (A) Is same as that in the reactor (B) Is different than that in the reactor (C) Depends upon the flow rate of inlet stream (D) None of these
Last Answer : (A) Is same as that in the reactor
Description : A pollutant P degrades according to first order kinetics. An aqueous stream containing P at 2 kmole/m3 and volumetric flow rate 1m3 /h requires a mixed flow reactor of volume V to bring down the pollutant level to 0.5 kmole/ ... reactor should be increased by a factor of: (A) 7 (B) 6 (C) 3 (D) 7/3
Last Answer : (A) 7
Description : Pick out the wrong statement. (A) For a first order consecutive reaction, a tubular flow reactor as compared to a stirred tank reactor provides higher overall selectivity(B) For an ideal ... D) Reaction rate does not decrease appreciably as the reaction proceeds in case of an autocatalytic reaction
Last Answer : (A) For a first order consecutive reaction, a tubular flow reactor as compared to a stirred tank reactor provides higher overall selectivity
Description : . An irreversible aqueous phase reaction, A + B → P, is carried out in an adiabatic mixed flow reactor. A feed containing 4kmole/m3 of each A and B enters the reactor at 8m3 /hr. If the temperature of ... be assumed to be independent of temperature and composition. (A) 190 (B) 290 (C) 390 (D) 490
Last Answer : (B) 290
Description : A second order liquid phase reaction, A → B, is carried out in a mixed flow reactor operated in semi batch mode (no exit stream). The reactant A at concentration CAF is fed to the reactor at a volumetric flow rate of F. The volume ... 2V (C) d(VCA )/dt = -FCA - kCA 2V (D) d(VCA )/dt = FCAF - kCA 2V
Last Answer : (D) d(VCA )/dt = FCAF - kCA 2V
Description : In case of staged packed bed reactors carrying out exothermic reaction, use (A) High recycle for pure gas (B) Plug flow for dilute liquid requiring no large preheating of feed (C) Cold shot operations for a ... preheating to bring the stream upto the reaction temperature (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Total flow in stream is known (A) Run off (B) Stream flow (C) Discharge (D) All the above
Last Answer : (D) All the above
Description : Pick up the incorrect statement from the following: (A) The net amount of water which joins the surface streams in a catchment, is known as surface run-off (B) The amount of water which ... over the catchment, is termed as the yield of the drainage basin (D) None of these
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
Description : Run off includes (A) Precipitation over catchment area of the stream and its attributaries (B) Surface run off (C) Ground water flow (D) All the above
Description : The best instrument for measuring the velocity of a stream flow is (A) Pitot tube (B) Price's current meter (C) Surface float (D) Sub-surface float
Description : Pick up the correct statement from the following: (A) Run off and surface run off are the same (B) Run off includes the water flowing over the surface (C) Run off is sometimes called discharge of the river (D) Surface run off is sometimes called stream flow
Description : Interception losses are due to (i) Evaporation (ii) Transpiration (iii) Stream flow The correct answer is (A) Only (i) (B) (i) and (ii) (C) (ii) and (iii) (D) (i), (ii) and (iii)
Last Answer : Answer: Option A
Description : The stream which does not have any base flow contribution is called (A) Perennial stream (B) Intermittent stream (C) Ephemeral stream (D) None of the above
Description : The Euler's equation for the motion of liquids is based upon the assumption that (A) The fluid is non - viscous, homogeneous and incompressible (B) The velocity of flow is uniform over the section (C) The flow is continuous, steady and along the stream line (D) All of the above
Description : Consider the following statements: The time of BOD assimilation in a stream can be affected by 1. Ratio of stream depth to flow width. 2. Stream BOD value 3. BOD rate constant. Which of these statements are correct? (a) 1, 2 & 3 (b) 1 & 2 only (c) 2 & 3 only (d) 1 & 3 only
Last Answer : (a) 1, 2 & 3
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
Description : Saturated steam at 1 atm is discharged from a turbine at 1200 kg/h. Superheated steam at 300 0C and 1 atm is needed as a feed to a heat exchanger. To produce it, the turbine discharge ... amount of superheated steam at 300 0C produced and the volumetric flow rate of the 400 0C steam.
Last Answer : Solution 1. Mass balance of water 1200 + m1 = m2 ………………………………………… (1) …………………….1 mark 2. Energy balance (1200 kg/h)(2676 kJ/kg) + m1(3278 kJ/kg)
Description : The presence of air bubble in blood stream is dangerous to life because (1) Air combines with blood forming a complex (2) The flow of blood increases manifold (3) The flow of blood is obstructed (4) The pressure of blood increases manifold
Last Answer : The flow of blood is obstructed
Description : Pick out the wrong statement. (A) The X-rays cannot be deflected by electric field unlike cathode rays (B) The intensity of X-rays can be measured by ionisation current produced due to the ... the anode-cathode voltage (D) Crystal structure of a material can be studied by an electron microscope
Last Answer : (C) The quality of X-rays can be controlled by varying the anode-cathode voltage