Question 1Single Answer
A water supply distribution system for an averagely-populated township is to be designed for
Objective Questions
Latest APSC AE Exam Question (Objective Questions), MCQ in English
Subjects : Civil
Question Bank APSC Assistant Engineer Paper II (Civil) Exam - EnglishCivil
Question 2Single Answer
A combined sewerage system is more appropriate for developed areas where
Question 3Single Answer
100 m3 of sludge holds a moisture content of 95%. If its moisture content chagnes to 90%, the volume of this sludge will then be
Question 4Single Answer
The design overflow rate of a sedimentation tank is chosen considering
Question 5Single Answer
Consider the following statements in respect of flow equalization in a waste water treatment plant :
1. Biological treatment is enhanced because shock loadings are eliminated or minimized
2. Flow equalizations is an attractive option for upgrading the performance of overloaded treatment plants.
3. Inhibiting substances can be diluted and pH can be stabilized
4. Thickening performance of primary sedimentation tanks following grit removal is improved.
Which of the above statements are correct?
1. Biological treatment is enhanced because shock loadings are eliminated or minimized
2. Flow equalizations is an attractive option for upgrading the performance of overloaded treatment plants.
3. Inhibiting substances can be diluted and pH can be stabilized
4. Thickening performance of primary sedimentation tanks following grit removal is improved.
Which of the above statements are correct?
Question 6Single Answer
A drain carrying 5m3/s of wastewater with its BOD of 100mg/l joins a stream carrying 50 m3/ s flow with its BOD of 5mg/l. What will be the value of the BOD of the combined flow after complete mixing?
Question 7Single Answer
Consider the following statements in respect of aerated grit chamber:
1. The grit accumulates at the bottom in advancing spiral-flow aeration tanks, location ally preceded by grit chambers, led to the eventual development of aerated grit chambers.
2. The excessive wear on grit handling equipment is a major factor for the popularity of aerated grit chambers.
3. Aerated grit chambers are designed to provide detention period of 1 minute at maximum rate of flow.
4. Diffusers are located at 0.45 m to 0.6 m above the bottom of teh chamber.
Which of the above statements are correct?
1. The grit accumulates at the bottom in advancing spiral-flow aeration tanks, location ally preceded by grit chambers, led to the eventual development of aerated grit chambers.
2. The excessive wear on grit handling equipment is a major factor for the popularity of aerated grit chambers.
3. Aerated grit chambers are designed to provide detention period of 1 minute at maximum rate of flow.
4. Diffusers are located at 0.45 m to 0.6 m above the bottom of teh chamber.
Which of the above statements are correct?
Question 8Single Answer
Quick sand condition occurs when
Question 9Single Answer
The side of a square land was measured as 150 m and is in error by 0.05 m. What is the corresponding error in the computed area of the land.
Question 10Single Answer
Consider the following statements in respect of anaerobic sludge digester:
1. It is less expensive compared to several other methods available.
2. Processing of separable solids impacts the environment to a minimum
3. Quantity of separated solids requiring disposal is minimal
4. Digested sludge is very readily dewaterable.
Which of the above statements are correct?
1. It is less expensive compared to several other methods available.
2. Processing of separable solids impacts the environment to a minimum
3. Quantity of separated solids requiring disposal is minimal
4. Digested sludge is very readily dewaterable.
Which of the above statements are correct?
Question 11Single Answer
Consider the following statements as regards a Septic Tank
1. The size required is large and uneconomical when serving more than roughly 100 persons.
2. It can remove around 90% of BOD and 80% of suspended solids.
3. As compared to the sludge holdings of a plain sedimentation tank, a septic tank can hold about 90% less of sludge volume.
4. Frequent removal of sludge is not required Which of the above statements are correct?
1. The size required is large and uneconomical when serving more than roughly 100 persons.
2. It can remove around 90% of BOD and 80% of suspended solids.
3. As compared to the sludge holdings of a plain sedimentation tank, a septic tank can hold about 90% less of sludge volume.
4. Frequent removal of sludge is not required Which of the above statements are correct?
Question 12Single Answer
Sewage sickness relates to
Question 13Single Answer
The waste water of a certain large colony contains 10–5.6 mmol of OH– ions at 25ºC. The pH of this sample is
Question 14Single Answer
Consider the relevance of the following features for causing photochemical smog:
1. Air stagnation
2. Abundant sunlight
3. High concentration of NOx in atmosphere.
4. High concentration of SO2 in atmosphere. Which of the above features are correct?
1. Air stagnation
2. Abundant sunlight
3. High concentration of NOx in atmosphere.
4. High concentration of SO2 in atmosphere. Which of the above features are correct?
Question 15Single Answer
Consider the following statements related to ecology:
1. All the physical, chemical and biological factors that a species needs in order to live and reproduce is called ecological niche.
2. The boundary zone between two ecosystems is known as ecotone.
3. The forests in the Arctics are known as tundra.
4. A biome usually has a distinct climate and life forms adapted to that climate. Biome is more extensive and complex than an ecosystem Which of the above statements are correct?
1. All the physical, chemical and biological factors that a species needs in order to live and reproduce is called ecological niche.
2. The boundary zone between two ecosystems is known as ecotone.
3. The forests in the Arctics are known as tundra.
4. A biome usually has a distinct climate and life forms adapted to that climate. Biome is more extensive and complex than an ecosystem Which of the above statements are correct?
Question 16Single Answer
Consider the following laws of ecology suggested by Barry Commoner:
1. Everything is connected to everything else.
2. Everything must go somewhere.
3. Nature knows best.
4. There is no such thing as a free lunch.
Which of the above statements are correct?
1. Everything is connected to everything else.
2. Everything must go somewhere.
3. Nature knows best.
4. There is no such thing as a free lunch.
Which of the above statements are correct?
Question 17Single Answer
For a hydraulically efficient rectangular channel of bed width 5m, the hydraulic radius is
Question 18Single Answer
A soil sample has shrinkage limit of 6%, and the specific gravity of the soil grains is 2.6. The porosity of soil at shrinkage limit is
Question 19Single Answer
Local mean time of a place of longitude of 42036’ W is 8h 42m 15s AM. The corresponding Green which Mean Time is
Question 20Single Answer
A vertical photograph of a flat area having an average elevation of 250m above mean sea level was taken with a camera of focal length 25 cm. A section line AB 300 m long in the area measures 15cm on the photograph; a tower BP in the area also appears on the photograph. The distance between images of top and bottom of the tower measures 0.5 cm on the photograph. The distance of the image of the top of the tower is 10 cm. The actual height of the tower is
Question 21Single Answer
Consider the following statements :
1. There will be no defects in select grade timbers.
2. The codal values for strength of grade-II timer without defects may be reduced by 37.5%.
3. For timber used as columns, the permissible stress in ungraded timbers is adopted with a multiplying factor of 0.50.
4. In case of wind force and earthquakes, a modification factor of 1.33 is adopted. Which of the above statements are correct ?
1. There will be no defects in select grade timbers.
2. The codal values for strength of grade-II timer without defects may be reduced by 37.5%.
3. For timber used as columns, the permissible stress in ungraded timbers is adopted with a multiplying factor of 0.50.
4. In case of wind force and earthquakes, a modification factor of 1.33 is adopted. Which of the above statements are correct ?
Question 22Single Answer
Consider the following statements regarding timber :
1. The strength of timber increases by Kiln seasoning.
2. Cutting of wood is to be done prior to treatment.
3. Water seasoning is good for prevention of warping.
4. ASCU treatment enhances the strength of wood. Which of the above statements are correct ?
1. The strength of timber increases by Kiln seasoning.
2. Cutting of wood is to be done prior to treatment.
3. Water seasoning is good for prevention of warping.
4. ASCU treatment enhances the strength of wood. Which of the above statements are correct ?
Question 23Single Answer
Gase(s) emitted during rotting or decomposition of timber is /are mainly
Question 24Single Answer
Efflorescence of bricks is due to
Question 25Single Answer
Disintegration of bricks masonry walls is primarily due to
1. Efflorescence
2. Magnesium sulphate in brick
3. Calcined clay admixtures
4. Kankar nodules
Which of the a above statements are correct ?
1. Efflorescence
2. Magnesium sulphate in brick
3. Calcined clay admixtures
4. Kankar nodules
Which of the a above statements are correct ?
Question 26Single Answer
Consider the following test :
1. Transverse strength test
2. Water absorption test
3. Impact test
4. Breaking strength test
Which of the above are relevant to testing of tiles ?
1. Transverse strength test
2. Water absorption test
3. Impact test
4. Breaking strength test
Which of the above are relevant to testing of tiles ?
Question 27Single Answer
Which of the following statements is/are correct regarding the strength of cement ?
1. Particle sizes less than 3 m increases the viscous nature of the cement.
2. Finer particles in cement can be replaced by fly-ash to improve the strength.
1. Particle sizes less than 3 m increases the viscous nature of the cement.
2. Finer particles in cement can be replaced by fly-ash to improve the strength.
Question 28Single Answer
The constituent compound in Portland cement which reacts immediately with water, and also sets earliest, is
Question 29Single Answer
Which of the following statements are correct with regard to cement mortar ?
1. Workability of cement mortar can be improved by addition of lime.
2. Fly-ash cement is economical in plastering jobs.
3. Addition of saw dust improves workability.
4. Sand in mortar can be replaced by finely crushed fire bricks.
1. Workability of cement mortar can be improved by addition of lime.
2. Fly-ash cement is economical in plastering jobs.
3. Addition of saw dust improves workability.
4. Sand in mortar can be replaced by finely crushed fire bricks.
Question 30Single Answer
In a concrete mix of proportion 1 : 3 : 6, the actual quantity of sand, which is judged to have undergone 15% bulking, per unit volume of cement, will be
Question 31Single Answer
Which method of curing of concrete is recommendable for rapid gain of strength of concrete ?
Question 32Single Answer
Which of the following is appropriate as simple field method for assesing consistency of concrete ?
Question 33Single Answer
Which of the following are relatable to Autoclaved Aerated Concrete ?
1. Light weight
2. Strong
3 Inorganic
4. Nontoxic
1. Light weight
2. Strong
3 Inorganic
4. Nontoxic
Question 34Single Answer
The workability of concrete becomes more reliable depending on
1. Aggregate-cement ratio
2. Time of transit
3. Grading of the aggregate
1. Aggregate-cement ratio
2. Time of transit
3. Grading of the aggregate
Question 35Single Answer
Which of the following statements are correct for stresses acting on mutually perpendicular faces of a plane element ?
1. The sum of the normal stresses in mutually perpendicular planes is equal to the sum of the principal stresses.
2. The shearing stresses in two mutually perpendicular planes are equal in magnitude and direction.
3. Maximum shear stress is half of the difference between principal stresses.
1. The sum of the normal stresses in mutually perpendicular planes is equal to the sum of the principal stresses.
2. The shearing stresses in two mutually perpendicular planes are equal in magnitude and direction.
3. Maximum shear stress is half of the difference between principal stresses.
Question 36Single Answer
Which of the following statements are correct?
1. Strain in the direction of applied stress is known as longitudinal strain.
2. Tensile stress results in tensile strain in linear and lateral directions.
3. Strains in all directions perpendicular to the applied stress are known as lateral strain. 4. Ratio of change in volume to original volume is known as volumetric strain.
1. Strain in the direction of applied stress is known as longitudinal strain.
2. Tensile stress results in tensile strain in linear and lateral directions.
3. Strains in all directions perpendicular to the applied stress are known as lateral strain. 4. Ratio of change in volume to original volume is known as volumetric strain.
Question 37Single Answer
In the cross-section of a timber, cambium layer can occur in
Question 38Single Answer
Consider the following statements :
1. In the infinitesimal strain theory, dilatation is taken as an invariant.
2. Dilatation is not proportional to the algebraic sum of all normal stresses.
3. The shearing modulus is always less than the elastic modulus.
Which of the above statements is/are correct ?
1. In the infinitesimal strain theory, dilatation is taken as an invariant.
2. Dilatation is not proportional to the algebraic sum of all normal stresses.
3. The shearing modulus is always less than the elastic modulus.
Which of the above statements is/are correct ?
Question 39Single Answer
Which one of the following represents constitutive relationship ?
Question 40Single Answer
Principal stresses at a point are 80 N/mm2 and 40 N/mm2, both tensile. The yield stress in simple tension for this material is 200 N/mm2. The values of factors of safety according to maximum principal stress theory and maximum shear stress theory, respectively, are
Question 41Single Answer
Consider the following statements:
1. IS 3583 refers to Burnt Clay Paving Bricks.
2. IS 5779 refers to Burnt Clay Soling Bricks.
3. IS 3952 refers to Burnt Clay Hollow Bricks.
4. IS 2222 refers to Burnt Clay Lay Bricks.
Which of the above statements are correct?
1. IS 3583 refers to Burnt Clay Paving Bricks.
2. IS 5779 refers to Burnt Clay Soling Bricks.
3. IS 3952 refers to Burnt Clay Hollow Bricks.
4. IS 2222 refers to Burnt Clay Lay Bricks.
Which of the above statements are correct?
Question 42Single Answer
Consider the following statements:
1. A high aggregate impact value indicates strong aggregates.
2. A low aggregate crushing value indicates high crushing strength of aggregates.
3. Aggregates having elongation index values greater than 15% are generally considered suitable for pavement construction.
4. Flakiness index of aggregates should not be less than 25% for use in road construction.
Which of the above statements are correct?
1. A high aggregate impact value indicates strong aggregates.
2. A low aggregate crushing value indicates high crushing strength of aggregates.
3. Aggregates having elongation index values greater than 15% are generally considered suitable for pavement construction.
4. Flakiness index of aggregates should not be less than 25% for use in road construction.
Which of the above statements are correct?
Question 43Single Answer
Consider the following statements regarding refractory bricks in furnaces:
1. The furnace is fired at temperatures more than 1700°C.
2. Silica content in the soil should be less than 40%.
3. Water absorption of bricks should not exceed 10%
4. Chrome bricks are known as basic bricks. Which of the above statements are correct?
1. The furnace is fired at temperatures more than 1700°C.
2. Silica content in the soil should be less than 40%.
3. Water absorption of bricks should not exceed 10%
4. Chrome bricks are known as basic bricks. Which of the above statements are correct?
Question 44Single Answer
Consider the following statements about lime:
1. Calcination of limestone results in quick lime.
2. Lime produced from pure variety of chalk is hydraulic lime.
3. Hydrated lime is obtained by treating quick lime with water.
Which of the above statements are correct?
1. Calcination of limestone results in quick lime.
2. Lime produced from pure variety of chalk is hydraulic lime.
3. Hydrated lime is obtained by treating quick lime with water.
Which of the above statements are correct?
Question 45Single Answer
Consider the following statements:
1. If more water is added to concrete for increasing its workability, it results into concrete of low strength.
2. No slump is an indication of a good workable concrete.
3. Higher the slump of concrete, lower will be its workability.
4. Workability of concrete is affected by water content as well as water-cement ratio.
Which of the above statements are correct?
1. If more water is added to concrete for increasing its workability, it results into concrete of low strength.
2. No slump is an indication of a good workable concrete.
3. Higher the slump of concrete, lower will be its workability.
4. Workability of concrete is affected by water content as well as water-cement ratio.
Which of the above statements are correct?
Question 46Single Answer
Pozzolana used as an admixture in concrete has the following advantages:
1. It improves workability with lesser amount of water.
2. It increases the heat of hydration and so lets the concrete set quickly.
3. It increases the resistance of concrete to attack by salts and sulphates.
4. It leaches out calcium hydroxide.
Select the correct answer using the codes given below:
1. It improves workability with lesser amount of water.
2. It increases the heat of hydration and so lets the concrete set quickly.
3. It increases the resistance of concrete to attack by salts and sulphates.
4. It leaches out calcium hydroxide.
Select the correct answer using the codes given below:
Question 47Single Answer
Consider the following statements regarding Cyclopean Concrete:
1. Size of aggregate is more than 150 mm.
2. Size of aggregate is less than 150 mm.
3. High slump.
4. High temperature rise due to heat of hydration.
Which of the above statements are correct?
1. Size of aggregate is more than 150 mm.
2. Size of aggregate is less than 150 mm.
3. High slump.
4. High temperature rise due to heat of hydration.
Which of the above statements are correct?
Question 48Single Answer
A chain, working a crane, has sectional area of 625 mm2 and transmits a load of 10 kN. When the load is being lowered at a uniform rate of 40 m/min, the chain gets jammed suddenly at which time the length of the chain unwound is 10m. Assuming E = 200 GPa, the stress induced in the chain due to this sudden jamming is
Question 49Single Answer
In mild steel specimens subjected to tensile test cycle, the elastic limit in tension is raised and the elastic limit in compression is lowered, This is called
Question 50Single Answer
Consider the following statements :
1. The shear stress distribution across the section of a circular shaft subjected to twisting varies parabolically.
2. The shear stress at the centre of a circular shaft under twisting moment is zero
3. The shear stress at the extreme fibres of a circular shaft under twisting moment is maximum.
Which of the above statements is/are correct?
1. The shear stress distribution across the section of a circular shaft subjected to twisting varies parabolically.
2. The shear stress at the centre of a circular shaft under twisting moment is zero
3. The shear stress at the extreme fibres of a circular shaft under twisting moment is maximum.
Which of the above statements is/are correct?
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