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.

151.

_ The cement becomes unsound by the presence of excess$?

A. Sulphur
B. Magnesia
C. Lime
D. All of these
Answer» E.
152.

_ 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.
153.

_ Quartzite is a$?

A. Metamorphic rock
B. Argillaceous rock
C. Calcareous rock
D. Siliceous rock
Answer» E.
154.

_ Smith's test of stones is performed to find out$?

A. The presence of soluble matter of stone
B. The compressive strength of the stone
C. The hardness of the stone
D. The toughness of the stone
Answer» B. The compressive strength of the stone
155.

_ The vehicle used in case of enamel paints is usually$?

A. Linseed oil
B. Water
C. Varnish
D. None of the above
Answer» D. None of the above
156.

_ Iron ore may contain$?

A. Carbon
B. Silicon
C. Phosphorus and manganese
D. All the above
Answer» E.
157.

_ For sanitary pipes and chemical stonewares,$?

A. Salt glazing is used
B. Lead glazing is used
C. Opaque glazing is used
D. None of these
Answer» B. Lead glazing is used
158.

_ The most commonly used base for timber painting, is$?

A. Red lead
B. Zinc white
C. White lead
D. Titanium white
Answer» D. Titanium white
159.

_ Which of the following is a rock?$?

A. Quartz
B. Mica
C. Gypsum
D. None of the above
Answer» D. None of the above
160.

_ Bitumen felt is used for$?

A. Water proofing
B. Damp proofing
C. Both (A) and (B)
D. Neither (A) nor (B)
Answer» D. Neither (A) nor (B)
161.

_ Which of the following metamorphic rocks has the most weather resisting characteristics?$?

A. Marble
B. Quartzite
C. Slate
D. Lime stone
Answer» C. Slate
162.

_ Geologically, marble is known as$?

A. Sedimentary rock
B. Igneous rock
C. Metamorphic rock
D. Stratified rock
Answer» D. Stratified rock
163.

_ The usual percentages of clay and metal in cermet are:$?

A. 50%, 50%
B. 60%, 40%
C. 70%, 30%
D. 80%, 20%
Answer» E.
164.

_ The cast iron when heated to red heat with powdered red haematite in an oven for increasing its toughness, is converted to$?

A. Grey cast iron
B. White cast iron
C. Mottled cast iron
D. Toughed cast iron
Answer» D. Toughed cast iron
165.

_ To give a brilliant finish, the type of varnish used, is$?

A. Water varnish
B. Spirit varnish
C. Turpentine varnish
D. Oil varnish
Answer» C. Turpentine varnish
166.

_ Compared to mild steel, cast iron has(i) High compressive strength(ii) High tensile strength(iii) Low compressive strength(iv) Low tensile strength$?

A. (i) and (ii)
B. (ii) and (iii)
C. (iii) and (iv)
D. (i) and (iv)
Answer» E.
167.

_ Inner part of a timber log surrounding the pitch, is called$?

A. Sapwood
B. Cambium layer
C. Heart wood
D. None to these
Answer» D. None to these
168.

_ 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
169.

_ According to IS specifications, the compressive strength of ordinary Portland cement after three days should not be less than$?

A. 7 MPa
B. 11.5 MPa
C. 16 MPa
D. 21 MPa
Answer» D. 21 MPa
170.

_ Early attainment of strength in rapid hardening cement is mainly due to$?

A. Gypsum
B. Finer grinding
C. Tri-calcium silicate
D. Tri-calcium aluminate
Answer» C. Tri-calcium silicate
171.

_ Percentage of carbon content in mild steel is$?

A. Less than 0.25
B. Between 0.25 and 0.7
C. Between 0.7 and 1.5
D. Greater than 1.5
Answer» B. Between 0.25 and 0.7
172.

_ Pick up the constituent of good brick earth whose excess causes the raw bricks shrink and warp during drying and burning, from the following:$?

A. Alumina
B. Lime
C. Iron-oxide
D. Magnesia
Answer» B. Lime
173.

_ Seasoning of timber is done$?

A. To make it water proof
B. To paint its surface
C. To increase its temperature
D. To remove water
Answer» E.
174.

_ Stones used for ornamental work must be$?

A. Soft
B. Hard
C. Light
D. Heavy
Answer» B. Hard
175.

_ The curved swellings from the growth of layers or wounds left after branches are cut off in an irregular manner are known as$?

A. Knots
B. Rindgalls
C. Burls
D. None of these
Answer» C. Burls
176.

_ Lime mortar is generally made with$?

A. Quick lime
B. Fat lime
C. Hydraulic lime
D. Plain lime
Answer» D. Plain lime
177.

_ The main constituent of cement which is responsible for initial setting of cement is$?

A. dicalcium silicate
B. tricalcium silicate
C. tricalcium aluminate
D. all of the above
Answer» D. all of the above
178.

_ Name the type of cement from the following for canal linings:$?

A. Sulphate resisting cement
B. Rapid hardening cement
C. Quick setting cement
D. Pozzolana cement
Answer» B. Rapid hardening cement
179.

_ A badly mixed cement concrete results in$?

A. Segregation
B. Bleeding
C. Honey combing
D. None of these
Answer» D. None of these
180.

_ Rapid hardening cement contains$?

A. Tri-calcium silicate
B. Tri-calcium aluminate
C. Tetra-calcium alumino-ferrite
D. Di-calcium silicate
Answer» B. Tri-calcium aluminate
181.

_ Asbestos$?

A. Is an excellent insulator for heat and electricity
B. Is fire-proof and acid proof
C. Has sp. gravity equal to 3.10
D. All the above
Answer» E.
182.

_ Stucco paints are suitable for$?

A. Stone masonry
B. Brick walls
C. Both (A) and (B)
D. Neither (A) nor (B)
Answer» D. Neither (A) nor (B)
183.

__A 1st class brick immersed in water for 24 hours, should not absorb water (by weight) more than__

A. 10 %
B. 15 %
C. 20 %
D. 25 %
Answer» D. 25 %
184.

__The percentage of alumina and silica in good fire clay vary respectively is__

A. 25, 75
B. 30, 70
C. 35, 65
D. All of these
Answer» B. 30, 70
185.

__Which of the following trees yields hard wood?__

A. Deodar
B. Chir
C. Shishum
D. Pine
Answer» D. Pine
186.

__After storage, the strength of cement__

A. Decreases
B. Increases
C. Remains same
D. May increase or decrease
Answer» B. Increases
187.

__The rocks which are formed due to cooling of magma at a considerable depth from earth's surface are called__

A. Plutonic rocks
B. Hypabyssal rocks
C. Volcanic rocks
D. Igneous rocks
Answer» B. Hypabyssal rocks
188.

__The pigment used in paints for corrosive resistance, is__

A. White lead
B. Ferrous oxide
C. Zinc white
D. Red lead
Answer» E.
189.

__A stone is rejected if it absorbs water more than__

A. 5 %
B. 10 %
C. 15 %
D. 20 %
Answer» C. 15 %
190.

__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 and R is correct explanation of A
B. Both A and R is true and R is not a correct explanation of A
C. A is true but R is false
D. A is false but R is true
Answer» B. Both A and R is true and R is not a correct explanation of A
191.

__Seasoning of timber is essential to remove__

A. Knots from timber
B. Sap from timber
C. Twisted fibre from timber
D. Roughness of timber
Answer» C. Twisted fibre from timber
192.

__Bitumen completely dissolves in__

A. Carbon bisulphide
B. Chloroform
C. Coal tar
D. All of these
Answer» E.
193.

__Sea sand used in structures causes__

A. Dampness
B. Efflorescence
C. Disintegration
D. All of these
Answer» E.
194.

_Pick up the compound responsible for early strength of cement from the following:$?

A. Tetra-calcium alumino-ferrite
B. Tri-calcium silicate
C. Tri-calcium aluminate
D. Di-calcium silicate
Answer» C. Tri-calcium aluminate
195.

_A bull nose brick is not used for$?

A. Rounding off sharp corners
B. Pillars
C. Decoration purpose
D. Arches
Answer» E.
196.

_Which of the following timbers is suitable for making sports goods?$?

A. Mulberry
B. Mahogany
C. Sal
D. Deodar
Answer» B. Mahogany
197.

_The foliated structure is very common in$?

A. Sedimentary rocks
B. Igneous rocks
C. Metamorphic rocks
D. None of these
Answer» D. None of these
198.

_The weight of a good quality brick when immersed in water for a period of 16 hours should not exceed the weight of dry brick$?

A. 20 %
B. 15 %
C. 10 %
D. None of these
Answer» B. 15 %
199.

_A well seasoned timber may contain moisture up to$?

A. 4 to 6 %
B. 6 to 8 %
C. 8 to 10 %
D. 10 to 12 %
Answer» E.
200.

_Bessemer process is used for the manufacture of$?

A. Pig iron
B. Cast iron
C. Wrought iron
D. Steel
Answer» E.