Assertion A. : Discharging the effluents from the oxidation ponds just up stream of lakes or reservoirs is undesirable. Reason (R) : The discharged algae get settled in the reservoirs and cause anaerobic decomposition and other water qualities. A. Both A and R are true and R is the correct explanation of A B. Both A and R are true but R is not a correct explanation of A C. A is true but R is false D. A is false but R is true

1 Answer

Answer :

ANS: A

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Description : Presence of nitrogen and phosphorous in waste water discharged into lakes and ponds causes (A) Foaming (B) Odour nuisances (C) Undesirable plant growth (D) Turbidity

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Description : Pick up the incorrect statement from the following. The source of surface water is from  (A) Streams and rivers  (B) Storage reservoirs  (C) Springs  (D) Ponds and lakes 

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Description : Pick up the correct statement from the following: A. Hydrogen sulphide gas in excess, may cause corrosion of concrete sewers B. 4 ppm of Dissolved Oxygen (D.O.) is ensured before discharging the treated ... river C. Solubility of oxygen in sewage is 95% of that of distilled water D. All the above

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Description : Assertion A : Normally turpentine oil is recommended as thinner for indoor painting. Reason R : Turpentine oil is costlier than other thinners. Select your answer according to the coding system given below: (A) Both A and R is ... of A (C) A is true but R is false (D) A is false but R is true

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Description : Assertion A: Intervention of undulations in the sea bed reduces the depth of wave at the section. Reason R: No wave can have a height greater than the depth of water through which it passes Select your answer based on ... of A (C) A is true but R is false (D) A is false but R is true

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Last Answer : (D) All (A), (B) & (C)

Description : Assertion (A): Hydrostatic lubrication is more advantageous when compared to hydrodynamic lubrication during starting and stopping the journal in its bearing. Reason (R): In hydrodynamic lubrication, the fluid film pressure is ... (c) A is true but R is false (d) A is false but R is true

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Description : Assertion (A): In hydrodynamic journal bearings, the rotating journal is held in floating condition by the hydrodynamic pressure developed in the lubricant. Reason (R): Lubricant flows in a converging-diverging channel. [IES-1994] ... A (c) A is true but R is false (d) A is false but R is true

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Description : Assertion (A): Oil as a cutting fluid result in a lower coefficient of friction. Reason (R): Oil forms a thin liquid film between the tool face and chip, and it provides 'hydrodynamic lubrication'. [IES- 2000] (a ... explanation of A (c) A is true but R is false (d) A is false but R is true

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Description : Assertion (A): In equilibrium position, the journal inside a journal bearing remains floating on the oil film. [IES-1995] Reason (R): In a journal bearing, the load on the bearing is perpendicular to the axis of the ... explanation of A (c) A is true but R is false (d) A is false but R is true

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Description : Assertion (A): In steady rotating condition the journal inside a hydrodynamic journal bearing remains floating on the oil film. [IES-2008] Reason (R): The hydrodynamic pressure developed in steady rotating conditions in journal ... A (c) A is true but R is false (d) A is false but R is true

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Description : The following questions consists of 2 statements - Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below: (a) Both A and R are true and R is the correct explanation for A (b) ... explanation for A (c) A is true but R is false (d) A is false but R is true

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Description : Assertion (A): Maddie tried to prepare her lessons, but she could not put her mind on work. Reason (R): Maddie was missing the fun they used to have by teasing Wanda. (a) Both A and R are true and R is the correct ... A is true but R is false (d) A is false but R is true (e) Both A and R are false

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Description : Assertion (A): Wanda did not like Peggy and Maddie. Reason (R): She made fun of them by drawing their heads on her dresses for revenge. (a) Both A and R are true and R is the correct explanation of A (b) Both A ... c) A is true but R is false (d) A is false but R is true(e) Both A and R are false

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Description : Assertion (A): Peggy was not cruel. Reason (R): She protected small children from bullies. (a)Both A and R are true and R is the correct explanation of A (b)Both A and R are true but R is not the correct explanation ... )A is true but R is false (d) A is false but R is true (e)Both A and R are false

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Description : Assertion: Black soils are black in colour due to diffusion of iron in crystalline and metamorphic rocks. Reason: They develop deep cracks during hot weather Options: (a) Both A and R are true and R is the correct explanation of ... of A.(c) A is true but B is false. (d) A is false but R is true.

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Description : Assertion (A): There are several goods and services that society needs however private sector doesn t produce all of them. Reason (R): Private sector is profit driven. (a) Both A & R are true and R is the correct ... correct explanation of A. (c) A is true but R is false. (d) Both A & R are false.

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Description : Assertion (A): Mohan is a shopkeeper who pays his taxes on time. He has employed two workers Raghu and Rakesh in his shop. He pays them well but none of the workers get paid leaves in a year. Reason (R): Rakesh ... correct explanation of A. (c) A is true but R is false. (d) Both A & R are false.

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Description : Assertion (A): The development of agriculture and industry leads to the development of tertiary sector. Reason (R): As the agriculture and industrial sectors develop, the demand for storage, transport, banking, insurance, etc, increases ... A. (c) A is true but R is false. (d) Both A & R are false.

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Description : Assertion (A) :Sunlight reaches us without dispersion in the form of white light and not as a component. Reason(R) : Dispersion takes place due to variation of refractive index for different wavelength but in vaccum the speed of ... of A. (c) A is true but R is false. (d) A is false but R is true.

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Description : Assertion (A) : Periplaneta americana is nocturnal, omnivorous, household pest. Reason (R) : It is because it acts as scavenger. (a) A is true but R is false. (b) A is false but R is true. (c) Both ... R is correct explanation of A. (d) Both A and R are true but R is not correct explanation of A

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Description : Assertion A: Large size stones are required in stone revetment in shore protection. Reason R: Resistance of stone to wave force is proportional to its volume and wave force is proportional to the exposed area of the stone. ... of A (C) A is true but R is false (D) A is false but R is true

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Description : Assertion A: For a given depth of cut, the output of a power shovel can be increased by decreasing the angle of swing. Reason R: If the angle of swing is decreased, the cycle time will be decreased. Select the ... explanation of A (C) A is true but R is false (D) A is false but R is true

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Description : Assertion A: Marine structures are made specially bulky and strong. Reason R: Sea insects result in undermining of the hardest and the soundest building material Select your answer based on the coding system given below: (A) ... of A (C) A is true but R is false (D) A is false but R is true

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Description : Assertion A: Depth and width required at the entrance to a harbour are more than those required in the channel. Reason R: The entrance to a harbour is usually more exposed to waves as compared to the harbour itself. ... explanation of A (C) A is true but R is false (D) A is false but R is true

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Description : Assertion A: Basin walls have to be of much greater height than dock walls. Reason R: Tidal basins are subject to fluctuations of levels due to tidal variations Select your answer based on the coding system given below: (A ... of A (C) A is true but R is false (D) A is false but R is true

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Description : Assertion A : The load factor for live load is greater than that for dead load. Reason R : The live loads are more uncertain than dead loads. Select your answer based on the coding system given below: (A) Both A ... explanation of A (C) A is true but R is false (D) A is false but R is true

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Description : Assertion A : Paints with white lead base are not recommended for painting of iron works. Reason R : Paints with white lead base do not check rusting of iron. Select your answer according to the coding system given below: ... of A (C) A is true but R is false (D) A is false but R is true

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Description : Assertion A : Pure lime takes a long time to develop adequate strength. Reason R : Pure lime has slow hardening characteristics. Select your answer according to the coding system given below: (A) Both A and R is true ... explanation of A (C) A is true but R is false (D) A is false but R is true

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Description : Assertion A : Shishum is used for decorative woodwork. Reason R : Shishum can be polished to an excellent finish. Select your answer according to the coding system given below: (A) Both A and R is true and R is the ... explanation of A (C) A is true but R is false (D) A is false but R is true

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Description : Assertion (A) :The liability of share holders in a private limited company is limited to the amount. Reason (R) :The number of share holders of a private limited company is limited to fifty. A. Both A and R are ... correct explanation of A C. A is true but R is false D. A is false but R is true

Last Answer : D. A is false but R is true

Description : Assertion (A). Industrial policy 1991 initiated liberalisation of Indian economy. Reason (R). Industrial growth was very slow before 1991. A. Both (A) and (R) are true and (R) is the correct explanation of (A). B. Both (A) ... A). C. (A) is true but (R) is false. D. (A) is false but (R) is true.

Last Answer : A. Both (A) and (R) are true and (R) is the correct explanation of (A). B. Both

Description : Assertion (A): Learning is a life long process. Reason (R): Learning to be useful must be linked with life processes. Choose the correct Answer from the following code (A) Both (A) and (R) are true and (R) is the correct ... (C) (A) is true, but (R) is false (D) (A) is false, but (R) is true.

Last Answer : Answer: B

Description : Assertion (A): Formative evaluation tends to accelerate the pace of learning. Reason (R): As against summative evaluation, formative evaluation is highly reliable. Choose the correct Answer from the following code (A) Both (A) and ... ) is true, but (R) is false. (D) (A) is false, but (R) is true

Last Answer : Answer: C 

Description : Assertion (A): Sustainable development critical to well-being of human society. Reason (R): Environmentally sound policies do not harm the environment or deplete the natural resources. Choose the correct code: (A) Both (A) and ( ... C) (A) is true and (R) is true (D) (A) is false and (R) is true

Last Answer : (B) Both (A) and (R) are correct, but (R) is not the correct explanation of (A).

Description : Assertion (A): Teaching aids have to be considered as effective supplements to instruction. Reason (R): They keep the students in good humour. Choose the correct answer from the codes given below : Codes : (A) Both (A ... ) is true, but (R) is false. (D) (A) is false, but (R) is true.

Last Answer : Answer: B

Description : Assertion (A): The problems of environmental sustainability are difficult to resolve. Reason (R): Our understanding how environment works and how different human choices affect environment is inadequate. Choose the correct code: (A) ... is true and (R) is false. (D) (A) is false and (R) is true.

Last Answer : (A) Both (A) and (R) are correct and (R) is the correct explanation of (A). 

Description : Assertion (A): The purpose of higher education is to promote critical and creative thinking abilities among students. Reason (R): These abilities ensure job placements. Choose the correct answer from the following code: (A) Both ... A) is true and (R) is false. (D) (A) is false and (R) is true.

Last Answer : (C) (A) is true and (R) is false.