The rate of silting in a reservoir
(A) Is less in the beginning
(B) Remains constant throughout
(C) Is more in the beginning
(D) is more in the beginning and reduces in the end
Description : Enlist the factors affecting on silting of reservoir.
Last Answer : a) Catchment area b) Shape of catchment c) Slope of country d) Nature of surface soil e) Climatic conditions f) Rainfall characteristics g) Vegetation cover h) Construction of check dam
Description : Pick up the correct statement from the following: (A) Large solids carried along the river bed, is known as bed load (B) The fine sediment deposits are generally near the face of ... ) Deposition of sediment in the reservoir, reduces the capacity of the reservoir (D) All the above
Last Answer : (D) All the above
Description : The disintegration rate of a radioactive element (A) Progressively increases (B) Progressively decreases (C) Remains constant throughout (D) May increase or decrease depending on the material
Last Answer : (B) Progressively decreases
Description : Mean residence time is equal to the space time, when (A) The feed rate is measured at temperature and pressure in the reactor (B) The temperature, pressure and the density of reaction mixture remains constant throughout ... no change in number of moles in gaseous reaction (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : If the demand line drawn from a ridge in a flow mass curve does not intersect the curve again, it indicates that (A) Demand cannot be met by inflow (B) Reservoir was not full at the beginning (C) Both (A) and (B) (D) None of the above
Last Answer : Answer: Option A
Description : Consider the following situation in a flow mass curve study when demand line drawn from a ridge in the mass curve does not intersect the mass curve again. This means that : (a) The storage is not ... (c) The reservoir was not full at the beginning (d) The reservoir is wasting water by spill
Last Answer : (b) The demand cannot be met by the inflow as the reservoir will not refill
Description : Economic height of a dam is the height corresponding to which (A) Cost of the dam per unit of storage is minimum (B) Amount of silting is less (C) Cost of dam per unit storage is maximum (D) Free board provided is least
Last Answer : (A) Cost of the dam per unit of storage is minimum
Description : To pump water from a water reservoir 3 m deep and maximum water level at 135 m, a pump is installed to lift water up to R.L. 175 m at a constant rate of 36,00,000 litres per hour. If the length of the ... the water horse power of the pump is (A) 400 (B) 450 (C) 500 (D) 600
Last Answer : (D) 600
Description : Which statement best describes the operating principle of a constant-speed propeller? a. As throttle setting is changed by the pilot, the prop governor causes pitch angle of the propeller blades to ... the pilot, the RPM of the engines remains constant as the pitch angle of the propeller changes
Last Answer : b. The propeller control regulates the engine RPM and in turn the propeller RPM
Description : Volute of a centrifugal pump should be designed in a fashion, such that the (A) Kinetic head gets converted into static head (B) Moving stream gradually reduces velocity (C) Mean velocity remains constant (D) None of these
Last Answer : (A) Kinetic head gets converted into static head
Description : In an ideal mixed reactor (at steady state), the (A) Space time is equivalent to holding time for constant density systems (B) Composition throughout the reactor remains same (C) Exit stream has the same composition as the fluid within the reactor (D) All (A), (B) and (C)
Description : Which of the following is the optimum operating condition for an exothermic reversible reaction taking place in a plug-flow reactor? (A) Temperature should be high in the beginning and decreased towards ... reaction (C) Very high temperature should be used throughout the reaction (D) None of these
Last Answer : (A) Temperature should be high in the beginning and decreased towards the end of the reaction
Description : Recitation in learning appears most profitable when introduced Options: A) At the beginning of the learning period B) Uniformity throughout the learning period C) Towards the end of the learning period D) Only as preparation for the testing period
Last Answer : C) Towards the end of the learning period
Description : Two different channels, M and N, in two different sites are designed based on Lacey's theory, to carry same quantum of discharge. But the bed material of M is found to be finer than that of N. a) ... slope c) Channels M and N can have same longitudinal slopes d) Silting is more in M than in N
Last Answer : b) Channel N will have steeper longitudinal slope
Description : The radius of curvature provided along a transition curve, is (A) Minimum at the beginning (B) Same throughout its length (C) Equal to the radius of circular curve (D) Varying from infinity to the radius of circular curve
Last Answer : Answer: Option D
Description : Consider the following statements: Mitra's hyperbolic transition design is based on the principle that : 1. Flow depth in the canal, as well as the discharge, is constant 2. width of the canal varies along with the discharge 3. Rate ... a) 1, 2 and 3 b) 1 and 2 only c) 2 and 3 only d) 1 and 3 only
Last Answer : d) 1 and 3 only
Description : A river bend characterized by silting (A) Scouring on concave side (B) Silting on convex side (C) Scouring on convex side and on concave side (D) Scouring on concave side and silting on convex side
Description : An aggrading river is a (A) Silting river (B) Scouring river (C) Both silting and scouring river (D) Neither silting nor scouring river
Description : Soundings are required for (A) Making nautical charts for navigation (B) Ascertaining the areas subject to scour or silting (C) Obtaining detailed information for construction (D) All the above
Description : The critical moisture content in case of drying indicates the __________ rate period. (A) Beginning of falling (B) Beginning of constant (C) End of falling (D) None of these
Last Answer : (A) Beginning of falling
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
Description : Pick up the correct statement from the following: (A) The ratio of the total sediment deposited in the reservoir to the total sediment flowing in the river, is called trap efficiency ( ... less (C) Large capacity reservoirs on small rivers generally silt more (D) All the above
Description : Second order consecutive irreversible reaction as shown in the bellow figure, were carried out in a constant volume isothermal batch reactor with different initial feed compositions. Reactor temperature was same in all the cases. In experiments ... constants (k1 /k2 )? (A) 1/4 (B) 1/2 (C) 2 (D) 4
Last Answer : (A) 1/4
Description : For calculating the evaporation rate over a reservoir surface E = 0.771 (1.465 - 0.00732B) (0.44 - 0.007375 V) (pe - pa), the equation is given by (A) Roohwer's, formula in M.K.S. (B) Roohwer's formula in F.P.S. (C) Dalton's formula in F.P.S. (D) Dalton's formula in M.K.S
Description : Priming in a distillation column (A) Results from very low gas velocity (B) Is desirable from point efficiency consideration (C) Is characterised by the presence of foam throughout the space between trays (D) Reduces the overall pressure drop
Last Answer : (C) Is characterised by the presence of foam throughout the space between trays
Description : The size, shape, and dielectric material of a waveguide must be constant throughout its length for energy to move from one end to the other without reflections. What could be the effect in any abrupt change in its size or shape?
Last Answer : Reflections.
Description : In the autonomic regulation of blood pressure (a) Cardiac output is maintained constant at the expense of other hemodynamic variables (b) Elevation of blood pressure results in elevated ... the sensitivity of the sensory baroreceptor nerve endings might cause an increase in sympathetic discharge
Last Answer : Ans: D
Description : A catalyst is said to be a negative catalyst, if it (A) Retards the rate of reaction (B) Reduces the value of equilibrium constant (C) Does not initiate the reaction (D) All (A), (B) and (C)
Last Answer : (A) Retards the rate of reaction
Description : D) MoneyGram Explanation: Global money transfer service provider, MoneyGram, has rolled out Receive & Win, a month-long a promotional campaign set to run throughout the Ramadan period, beginning 6 June ... set to run in the Indian states of Telangana, Bihar, Uttar Pradesh, Gujarat, and Kerala.
Last Answer : Name the newly appointed MD of State Bank of Mysore. A) NK Chari B) Romil Bhattacharya C) Surya Kumar D) CR Sasikumar E) DP Sardana
Description : Which one of the following statements is totally wrong about the occurrence of notochord, while the other three are correct? (a) It is present only in larval tail in ascidian. (b) It is ... absent throughout life in humans from the very beginning. (d) It is present throughout life in Amphioxus.
Last Answer : (c) It is absent throughout life in humans from the very beginning.
Description : An imaginary line lying throughout the surface of ground and preserving a constant inclination to the horizontal is known as (A) Contour line (B) Horizontal equivalent (C) Contour interval (D) Contour gradient
Last Answer : (D) Contour gradient
Description : An imaginary line lying throughout on the surface of the earth and preserving a constant inclination to the horizontal, is called (A) Contour line (B) Contour gradient (C) Level line (D) Line of gentle scope
Last Answer : (B) Contour gradient
Description : If a constant section beam is subjected to a uniform bending moment throughout, its length bends to (A) A circular arc (B) A parabolic arc (C) A catenary (D) None of these
Last Answer : (A) A circular arc
Description : The direct shear test suffers from the following disadvantage: (A) Drain condition cannot be controlled (B) Pore water pressure cannot be measured (C) Shear stress on the failure plane is not uniform (D) The area under the shear and vertical loads does not remain constant throughout the test
Last Answer : Answer: Option C
Description : Spacing of stirrups in a rectangular beam, is (A) Kept constant throughout the length (B) Decreased towards the centre of the beam (C) Increased at the ends (D) Increased at the centre of the beam
Description : According to Bernoulli's equation for steady ideal fluid flow (A) Principle of conservation of mass holds (B) Velocity and pressure are inversely proportional (C) Total energy is constant throughout (D) The energy is constant along a streamline but may vary across streamlines
Description : The filtrate flow rate in constant pressure filtration (A) Continuously increases (B) Continuously decreases (C) Remain constant throughout (D) May increase or decrease; depends on the pressure
Last Answer : (B) Continuously decreases
Description : An endothermic second order reaction is carried out in an adiabatic plug flow reactor. The rate of heat generation is: (A) Maximum at the inlet of the reactor (B) Maximum at the exit of the reactor (C) Maximum at the centre of the reactor (D) Constant throughout the reactor
Last Answer : (A) Maximum at the inlet of the reactor
Description : The most efficient cycle that can operate between two constant temperature reservoir is the _________. a. Otto Cycle b. Lazare Cycle c. Isothermal Cycle d. Carnot Cycle
Last Answer : Carnot Cycle
Description : The main cause of recurring flood is – (1) Soil erosion (2) Deforestation (3) Silting of river beds (4) All of the above
Last Answer : (4) All of the above Explanation: Floods are caused by a variety of factors, both natural and man-made. Apart from soil erosion and silting of river beds which force the water of rivers ... against water flow and in turn protect the underlying soil from getting eroded and then getting washed away.
Description : Which of the following was not a purpose for building Farakka Barrage? (1) Checking water flowing into Bangladesh (2) Checking silting of Kolkata Port (3) Preventing erosion of Kolkata Port (4) Facilitating navigation in Ganga river
Last Answer : (4) Facilitating navigation in Ganga river Explanation: The Farakka Barrage was created by India in 1975 to divert water from the Ganges River to the Bhagirathi-Hooghly river system. It was ... to flush out the sediment deposition from the Kolkata harbour and thus prevent erosion of Kolkata port.
Description : The increased incidence of floods in recent times in North India is due to – (1) increase in the annual rainfall, (2) increase in the silting of dams, (3) increased deforestation in the catchment area, (4) None of these
Last Answer : (3) increased deforestation in the catchment area, Explanation: The frequency and severity of flooding in the Gangetic plain has steadily increased in recent years. Deforestation of the Terai appears to be one of the major causes.
Description : With self cleansing velocity in sewers A. Silting occurs at bottom B. Scouring occurs at bottom C. Both silting and scouring occur at bottom D. Neither silting nor scouring occurs at bottom
Last Answer : ANS: D
Description : Clogging of sewers, is caused due to A. Silting B. Low discharge C. Greasy and oily matters D. All the above
Description : In sewers designed with self cleansing velocity, A. The bottom is silted B. The bottom is scoured C. Both silting and scouring occur at the bottom D. Neither silting nor scouring occurs at the bottom
Description : The removal of top soil by water or wind is called (1) Soil wash (2) Soil erosion (3) Soil creep (4) Silting of soil
Last Answer : (2) Soil erosion
Description : Justify the remedial measures for the following defects in earthen road: i) Formation of dust during dry weather ii) Growth of vegetation inside drains and their silting up
Last Answer : i) Formation of dust during dry weather: The dust nuisance may be remedied by the following methods: Frequent sprinkling of water Treatment with calcium chloride Use of other dust palliatives Use of ... the drain. Silting up of weeds, plants, bushes etc. causes obstruction in the flow of water.
Description : The main cause of recurring flood is (1) Soil erosion (2) Deforestation (3) Silting of river beds (4) All of the above
Last Answer : All of the above
Description : The distribution of the forces along the length of key fitted in a shaft (A) Varies linearly (B) Is uniform throughout (C) Varies exponentially, being more near the torque-input end (D) Varies exponentially, being less near the torque-input end
Last Answer : (C) Varies exponentially, being more near the torque-input end
Description : “Risk” is usually _______ as the project progresses. (A) increases (B) reduces (C) remains same (D) becomes negligible
Last Answer : (B) reduces