Explore topic-wise MCQs in Civil Engineering.

This section includes 336 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.

101.

*/*_The main constituent which imparts hydraulicity to hydraulic lime is?

A. Calcium oxide
B. Silica
C. Clay
D. Water
Answer» D. Water
102.

*/*_Seasoning of timber is done for?

A. Increasing moisture content
B. Decreasing moisture content
C. Increasing strength of timber
D. None to these
Answer» C. Increasing strength of timber
103.

*/*_The commonly used thinner in oil paints, is?

A. Naphtha
B. Turpentine
C. Both (a) and (b)
D. None the these
Answer» D. None the these
104.

*/*_Stones used for the construction of retaining walls must be?

A. Soft
B. Hard
C. Light
D. Heavy
Answer» E.
105.

*/*_The rocks formed by gradual deposition, are called?

A. Sedimentary rocks
B. Igneous rocks
C. Metamorphic rocks
D. None of these
Answer» B. Igneous rocks
106.

*/*_The lime which contains mainly calcium oxide and slacks with water, is?

A. Fat lime
B. Quick lime
C. Hydraulic lime
D. Poor lime
Answer» C. Hydraulic lime
107.

*/*_The practical limit of moisture content achieved in air drying of timber is?

A. 5 %
B. 15 %
C. 25 %
D. 35 %
Answer» C. 25 %
108.

*/*_Bitumen emulsion is?

A. A liquid containing bitumen in suspension
B. A paint
C. Used as anti-corrosive paint
D. All the above
Answer» E.
109.

*/*_The rocks which are formed due to cooling of magma at a relatively shallow depth from the earth's surface are called?

A. Plutonic rocks
B. Hypabyssal rocks
C. Volcanic rocks
D. Igneous rocks
Answer» C. Volcanic rocks
110.

*/*_The type of steel used for precision levelling staff, is?

A. Titanium steel
B. Carbon steel
C. Invar
D. Stainless steel
Answer» D. Stainless steel
111.

*/*_The commonly used lime in white washing, is?

A. White lime
B. Fat lime
C. Hydraulic lime
D. Quick lime
Answer» C. Hydraulic lime
112.

*/*_Due to attack of dry rot, the timber?

A. Cracks
B. Shrinks
C. Reduces to powder
D. None of these
Answer» D. None of these
113.

%_The practical limit of moisture content achieved in air drying of timber is_%

A. 0.05
B. 0.15
C. 0.25
D. 0.35
Answer» C. 0.25
114.

%_Bitumen emulsion is_%

A. A liquid containing bitumen in suspension
B. A paint
C. Used as anti-corrosive paint
D. All the above
Answer» E.
115.

%_The rocks which are formed due to cooling of magma at a relatively shallow depth from the earth's surface are called_%

A. Plutonic rocks
B. Hypabyssal rocks
C. Volcanic rocks
D. Igneous rocks
Answer» C. Volcanic rocks
116.

%_The type of steel used for precision levelling staff, is_%

A. Titanium steel
B. Carbon steel
C. Invar
D. Stainless steel
Answer» D. Stainless steel
117.

%_Fibre glass_%

A. Retains heat-longer
B. Has a higher strength to weight ratio
C. Is shock proof and fire retardant
D. All the above
Answer» E.
118.

%_Pug mill is used for_%

A. Preparation of clay
B. Moulding of clay
C. Drying of bricks
D. Burning of bricks
Answer» B. Moulding of clay
119.

%_Quartzite is a_%

A. Metamorphic rock
B. Argillaceous rock
C. Calcareous rock
D. Siliceous rock
Answer» E.
120.

%_Plastic_%

A. Is an organic substance
B. Consists of natural or synthetic binders
C. Finished products are rigid and stable at normal temperature
D. All the above
Answer» E.
121.

%_For making fly-ash building bricks, the following mix of fly-ash, sand and lime, is_%

A. 80 : 13 : 7
B. 70 : 20 : 10
C. 60 : 35 : 5
D. None of these
Answer» B. 70 : 20 : 10
122.

%_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 true and R is the correct explanation of A
B. Both A and R is true but R is not the correct explanation of A
C. A is true but R is false
D. A is false but R is true
Answer» C. A is true but R is false
123.

%_The preparation of surface of stone to obtain plain edges or to obtain stones of required size and shape is known as_%

A. Quarrying of stones
B. Blasting of stones
C. Seasoning of stones
D. Dressing of stones
Answer» E.
124.

%_For the manufacture of Portland cement, the proportions of raw materials used, are_%

A. Lime 63% ; silica 22% ; other ingredients 15%
B. Lime 22% ; silica 63% ; other ingredients 15%
C. Silica 40% ; lime 40% ; other ingredients 20%
D. Silica 70% ; lime 20% ; other ingredients 10%
Answer» B. Lime 22% ; silica 63% ; other ingredients 15%
125.

%_Cross cut saw is used for_%

A. Cutting soft stones
B. Cutting hard stones
C. Cutting large blocks of stones
D. Dressing stones
Answer» C. Cutting large blocks of stones
126.

%_Cast iron_%

A. Is obtained by purifying pig iron
B. Is manufactured in required shapes
C. May contain 2 to 5 per cent of carbon with other impurities
D. All the above
Answer» E.
127.

%_Pick up the polymineralic rock from the following:_%

A. Quartz sand
B. Pure gypsum
C. Magnesite
D. Granite
Answer» E.
128.

%_The lime which contains mainly calcium oxide and slacks with water, is_%

A. Fat lime
B. Quick lime
C. Hydraulic lime
D. Poor lime
Answer» C. Hydraulic lime
129.

%_Stones used for the construction of retaining walls must be_%

A. Soft
B. Hard
C. Light
D. Heavy
Answer» E.
130.

%_The rocks formed by gradual deposition, are called_%

A. Sedimentary rocks
B. Igneous rocks
C. Metamorphic rocks
D. None of these
Answer» B. Igneous rocks
131.

%_Seasoning of timber is done for_%

A. Increasing moisture content
B. Decreasing moisture content
C. Increasing strength of timber
D. None to these
Answer» C. Increasing strength of timber
132.

%_The commonly used thinner in oil paints, is_%

A. Naphtha
B. Turpentine
C. Both (a) and (b)
D. None the these
Answer» D. None the these
133.

%_For testing compressive and tensile strength of cement, the cement mortar is made by mixing cement and standard sand in the proportions of_%

A. 1 : 2
B. 1 : 3
C. 1 : 4
D. 1 : 6
Answer» C. 1 : 4
134.

%_The main constituent which imparts hydraulicity to hydraulic lime is_%

A. Calcium oxide
B. Silica
C. Clay
D. Water
Answer» D. Water
135.

%_Iron ore may contain_%

A. Carbon
B. Silicon
C. Phosphorus and manganese
D. All the above
Answer» E.
136.

%_Gypsum is a_%

A. Mechanically formed sedimentary rock
B. Igneous rock
C. Chemically precipitated sedimentary rock
D. Metamorphic rock
Answer» D. Metamorphic rock
137.

_ The filler used in plastic bitumen, is$?

A. Shale powder
B. Talc powder
C. Asbestos powder
D. Plastic powder
Answer» D. Plastic powder
138.

_ Plastic bitumen is generally used for$?

A. Road pavements
B. Expansion joints
C. Crack fillings
D. None to these
Answer» D. None to these
139.

_ The basic purpose of a retarder in concrete is$?

A. To increase the initial setting time of cement paste in concrete
B. To decrease the initial setting time of cement paste in concrete
C. To render the concrete more water tight
D. To improve the workability of concrete mix
Answer» B. To decrease the initial setting time of cement paste in concrete
140.

_ The moisture content in a well seasoned timber is$?

A. 4 % to 6 %
B. 10 % to 12 %
C. 15 % to 20 %
D. 100 %
Answer» C. 15 % to 20 %
141.

_ During smelting process, the combination of fuel in the furnace$?

A. Forms carbon dioxide
B. Carbon dioxide with carbon forms carbon mono-oxide
C. Carbon mono-oxide reacts with Fe2O3 to form iron and liberates CO2
D. All the above
Answer» E.
142.

_ Fibre glass$?

A. Retains heat-longer
B. Has a higher strength to weight ratio
C. Is shock proof and fire retardant
D. All the above
Answer» E.
143.

_ Cast iron contains carbon approximately$?

A. 1.5% to 5.5%
B. 0.05% to 1.75%
C. 0.250 %
D. None to these
Answer» B. 0.05% to 1.75%
144.

_ Age of a tree may be ascertained by$?

A. Radius of its stem
B. Circumference of its stem
C. Number of branches
D. Number of annual rings
Answer» E.
145.

_ The slump recommended for mass concrete is about$?

A. 25 mm to 50 mm
B. 50 mm to 100 mm
C. 100 mm to 125 mm
D. 125 mm to 150 mm
Answer» B. 50 mm to 100 mm
146.

_ Cast iron$?

A. Is obtained by purifying pig iron
B. Is manufactured in required shapes
C. May contain 2 to 5 per cent of carbon with other impurities
D. All the above
Answer» E.
147.

_ For testing compressive strength of cement, the size of cube used is$?

A. 50 mm
B. 70.6 mm
C. 100 mm
D. 150 mm
Answer» C. 100 mm
148.

_ To retard the initial setting time of cement, the compound responsible, is$?

A. Tri-calcium silicate
B. Gypsum
C. Di-calcium silicate
D. Tri-calcium aluminate
Answer» C. Di-calcium silicate
149.

_ In order of increasing percentage of silica, the correct sequence is$?

A. Sandy clay, calcareous clay, pure clay
B. Calcareous clay, pure clay, sandy clay
C. Pure clay, sandy clay, calcareous clay
D. None of these
Answer» C. Pure clay, sandy clay, calcareous clay
150.

_ According to IS 399-1963, the weight of the timber is specified at$?

A. 8% moisture content
B. 10% moisture content
C. 12% moisture content
D. 14% moisture content
Answer» D. 14% moisture content