(41/2017)

Pozzolana is essentially a siliceous material containing clay upto

.: (139/2017)

The alloy in duralumin with largest content is :

A. Magnesium

B. Copper

C. Manganese

D. None of these

. (155/2010)

The cement becomes unsound by the presence of excess

A. Magnesia

B. Lime

C. All of these

D. Sulphur

(66/2013)

The impact test are used to determine :

A. Tenacity

B. Toughness

C. Shear strength

D. Ductility

(210/2008)

A concrete having a slump of 70 mm is termed as

A. Dry

B. Plastic

C. Semi plastic

D.Flowing

(48/201700

In order to dry the quarry sap of a

freshly quarried stone it should be

exposed to open air for a period of

A. One month

B. Two years

C. Four months

D. Six to twelve months

(210/2008)

Finer the cement

A. More is the surface area

B. All of these

C. Lesser the amount of waterrequired for constant slump

D. Higher the rate of hydration

. (61/2020)

The permissible stress in compression of M30 concrete in bending as per IS 456-2000 is

A. 12 N/mm2

B. 30 N/mm2

C. 15 N/mm2

D. 10 N/mm2

: (170/2016)

Which of the following test measure the hardness of road aggregates ?

A. Crushing test

B. Soundness test

C. Abrasion test

D. Impact test

.(10/2020)

When percentage of mica present in

sand is high, it :

A. Reduces the strength of mortar or concrete

B. Increases the strength of mortar or concrete

C. Enhances the strength of mortar or concrete slightly

D. Has no effect on the strength of mortar or concrete

NIMI

Which rubber is used as insulator for power cables and control wires?

A. Butyl

B. Hypalone

C. Silicon

D. Nitrite butadiene

144/2013 OL)

In any case the bearing of lintel

should not be less than

A 150 mm

B 100 mm

C 200 mm

D 300 mm

.(108/2010)

The metal extracted from galena is :

A. Tin

B. Zinc

C. Copper

D. Lead

(134/2008)

Which of the following is fully fluorinated polymer ?

A. Thiokol

B. Teflon

C. PVC

D. Neoprene

: (48/201700

The length of a curved tile varies from

A. 15 to 20 cm

B. 10 to 12 cm

C. 20 to 22.5 cm

D. 12 to 15 cm

(66/2013)

Addition of Pozzolana to cement

A. Decrease curing time

B. Increase strength

C. None of these

D. Decrease the workability

. (170/2016)

Plastics can be broadly classified as

A. Elastic and rigid

B. Monomers and polymers

C. Thermosetting and thermoplastic

D. Soft and hard

(142/2015)

Drain tiles are made of

A. aluminium

B. mild steel

C. None of these

D. concrete

(124/2023)

Identify the defect occurs to timber when it is converted to commercial form.

A. Callus

B. druxiness

C. Sap strain

D. Wane

(219/2009)

In prestressed concrete by pretensioning system, the diameter of wires used is generally

A. 2 to 3 mm

B. 12 to 10 mm

C. 15 to 12 mm

D. 5 to 8 mm

: (41/2015)

The optimum number of revolutions

by which concrete is required to be

mixed concrete mixer machine is

A. 100

B. 20

C. 10

D. 50

: (28/2016)

Hydrophobic cement is obtained by

grinding ordinary Portland cement

clinker with

Hydrochloric acid

Acetol

Glycerine

Oleic acid

. (172/2008)

Batching of fine sand is not done by volume

A. Volume of sand changes depending on site conditions

B. None of these

C. Containers for measuring large volume are not easily available

D . It is easy to weigh fine sand

.: (102/2021)

As per IS 399:1963 "Classification of

Commercial Timbers and Their Zonal

distribution", weight per cubic metre

of various timber is standardised at

_ moisture content

: (11/2016)

In a cement concrete road

expansion joints are provided at

intervals of

(41/2015)

Which of these metals is the best conductor of heat

A. Copper

B. Silver

C. Iron

D. Aluminium

(62/2023)

Permissible moisture content in

timber doors of thickness 50 mm

and above, in Zone IV is

(125/2013)

An example of artificial abrasive is :

A. Quartz

B. Diamond

C. Corundum

D. Boron carbide

41/2017 OL)

The split strength of cement can be determined by

A. Cube test

B. Brazilion test

C. Vicat's apparatus

D. Briquettes test

(219/2009)

If the slump of concrete mix is 60mm, its workability is

A. Very high

B. Low

C. Medium

D. High

.: (219/2009)

The approximate ratio of strength of cement concrete at 3 months to that at 28 days of curing is

A. 1.15

B. 0.75

C. 1.3

D. 1

(41/2022)

Which of the following is an example of a thermosetting plastic?

A. polyester

B. Polycarbonate

C. Acrylics

D. Nylon

(132/2022)

Surface hardness and fatigue life of steel alloys can be improved by

A. Normalizing

B. Annealing

C. Carburizing

D. Quenching

85/2022)

As per IS 269 the weight of magnesia

in cement shall not exceed by

: (139/2017)

Which is an expendable mould casting process?

A. Investment moulding

B. Vaccum moulding

C. Shell moulding

D. All of these

(41/2015)

Optimum water cement ratio in concrete is

A. 0.6 to 0.8

B. 0.4 to 0.5

C. 0.3 to 0.4

D. 0.5 to 0.6

(153/2017)

For different concrete specimens, each hydrated to the same degree, the permeability is

A. Lower with higher water cement ratio and lower cement content

B. Higher with lower water cement ratio and higher cement content

C.Lower with higher water cement ratio and higher cement content

D. Lower with lower water cement ratio and higher cement content

(114/2023)

Which of this IS code provides specification for 53 grade OPCcement ?

A. IS 8041 : 1990

B. IS 8112 : 1989

C. IS 1489

D. IS 12269 : 1987

(10/2020)

Which of the following is not true

A. Increasing dicalcium silicate (c2S) generates more heat of hydration

B. Increasing the fineness of cement results in high compressive strength

C. Increasing dicalcium silicate (C2S) retards early development of strength of cement

D. Increasing tricalcium silicate (C3S) and tricalcium aluminate (C3A) contribute to high early strength of cement

(87/2014)

Melting point of mild steel is about :

400 C

1400 C

1600 C

350 C

. (29/2016)

The essence of the construction industry is :

A. Management

B. Material

C. Money

D. Man

157/2006)

When a timber is used for column the loading is

A. None of these

B. Parallel to the grain

C. Perpendicular to the grain

D. Inclined at 450 to grain

(172/2008)

Steam curing accelerates attainment of strength in concrete because

A. More water is available for curing

B. Hydration of cement is faster

C. Rapid hardening occurs

D. None of these

: (172/2008)

Duration of hydration of cement lasts

A. A few minutes

B. A few seconds

C. About an hour

D. Very long

(48/201700

The portion of a brick which is so cut that the width of one of its end is half that of a full brick, while the width at the other end is equal to full width is known as:

A. Mitred closer

B. Queen closer

C. King closer

D. Bevelled closer

(11/2016)

The standard width of asbestos cement corrugated sheet is

A. 0.9 m

B. 1.25 m

C. 1.05 m

D. 1.0 m

(97/2017)

Wrought iron contains carbon upto .....%

A. 2%

B. 0.25

C. 1.5

D. 1

(70/2013)

Thermoplatic tiles are used for ............ finishes

A. Ceiling

B. Wall

C. Roofing

D. Flooring

: (153/2017)

The consistuent of cement which act as binder are

Tricalcium Silicate, Dicalcium Silicate and Carbon

B. Tricalcium Silicate, Dicalcium Silicate and Tricalcium aluminate

C. Sand and Silica

D. Carbon and Silica

108/2010)

Name of carrier used for preparing paints of superior quality

A. Nut oil

B. Poppy oil

C. Linseed oil

D. Tug oil

: (130/2015)

What is meant by the cambium layer of an exogenous tree ?

A. Layer between inner bark and sap wood

B. Layer between pith and heart wood

C. Outermost layer of the tree

D. Zone of inner rings surround the pith

73/2023)

The larger the maximum size ofaggregate and coarser the grading, the amount of water required for a given workability is

A. Not predicted

B. Same as before

C. Increased

D. decreased

(24/2077 OL)

Potash lead glass is also known as

A. Bottle glass

B. Soft glass

C. Hard glass

D. Flint glass

.: (11/2016)

The best primer used for structural steel work is

A. Zinc oxide

B. Red lead

C. Iron oxide

D. white lead

: (38/2016)

Efflorescence is caused if :

A. The alkaline salt is present in the bricks

B. The clay used for making bricks contain pyrite

C. The water used for pugging the clay gypsum

D. All of these

: (70/2013)

Which one is the example of thermosetting plastics?

A. Acrylic resin

B. Vinyl plastics

C. Epoxy resins

D. Polycarbonate

: (85/2022)

Mention the code of practice for design of structural timber in building

A. IS 800 - 1984

B. IS 875 - 1980

C. IS 885 - 1970

D. IS 883 - 1970

.: (186/2015)

Which of the following is not a natural defect in timber

A. Knots

B. Burls

C. Honey combing

D. Druxiness

.: (97/2017)

Which test among the following is used to determine the workability of concrete ?

A. Vicat apparatus test

B. Test for standard consistency

C. Compacting Factor Test

D. Test for Fineness

: (67/2012)

A plastic material obtained by

oxidizing linseed oil into a rubber like

substance mixed with ground cork,

wood flour and pigments is known

A. Linoleum

B. Fibre glass

C. Thermocol

D. Glass wool

NIMI

What is the name of the property of

an insulation that should brake down

or puncture on application of high

voltage?

A. Non absorption

B. Di-electric strength

C. Mechanical strenth

D. Specific resistance

(170/2016)

The innermost part of the stem,

which consists entirely of cellular

tissues is called

A. Bark

B. Sap wood

C. Cambium

D. HEART

(210/2015 )

Purer form of coal and contains a majority of carbon, is produced from coal artificially :

A. Creep

B. Carbon Steel

C. Graphite

D. Coke

(41/20170L)

Abrasion test is conducted to find

A. Toughness of aggregate

B. Hardness of aggregate

C. Strength of aggregate

D. Durability of aggregate

(114/2023)

Which of the following statement is correct about Portland Pozolana Cement (PPC) ?

: NIMI

Which waste material is obtained from the thermal power stations?

A. Surkhi

B. Cinder

C. Pozzolana

D. Sand

. (108/2010)

The compound prepared by dissolving 150 gram shellac in one litre of methylated spirit is :

A. Distemper

B. French polish

C. Primer

D. Oil varnish

(102/2021)

Needle shaped solids which appear during the hydration of cement in its microstructure level is called

A. Calcium Silicate Hydrate

B. Ettringite

C. Belite

D. Calcium Hydroxide

: (61/2020)

As per IS 1077 - 1992, the non- modular size of the brick is

A. 230 mm x 110 mm x 70 mm

B. 190 mm x 90 mm x 90 mm

C. 190 mm x 190 mm x 90 mm

D. 100 mm x 100 mm x 40 mm

: (210/2015 )

A polishing abrasive made artificially by mixing in certain proportions sand and carbon and heating the mixture in an electric furnace

A. Ballast

B. Emery

C. Coke

D. Carborundum

.: (61/2020)

The paint containing binding material such as polyvinyl lactate, styrene, alkyd resin and other synthetic resins

A. Aluminum paints

B. Colloidal paints

C. Emulsion paints

D. NONE OF THESE

(28/2020)

The solution of bitumen, asphalt or coal tar in solvent is

A. Cut backs

B. Bitumen macadam

C. Sheet asphalt

D. Emulsion

(85/2022)

An example of foliated rock

A. Sand stone

B. Basalt

C. Gneiss

D. Granite

. (41/20170L)

Bitumen is soluble in

A. Carbon disulphide

B. Petrol

C. Diesel

D. Amonia

(332/2005)

Curing :

A. Preserves the properties of concrete

B. Prevents the loss of water by evaporation

C. Reduces the shrinkage ofconcrete

D.All of these

: (125/2013)

Gypsum consists of

A. C02 and Calcium

B. Lime and H20

C. CaS04 and H20

D. H2S and C02

(125/2013)

Styrene butadiene rubber is also called :

A. Neoprene rubber

B. Buna S rubber

C. Silicone rubber

D. Butyl rubber

(144/2013 OL)

Which one of the following tests is performed in the laboratory to determine the extent weathering of aggregates for road work

A. Crushing test

B. Abrasion test

C. Impact test

D. Soundness test

(122/2023)

A flexible damp proofing material which is easy to lay and available in rolls

A. Bricks

B. Stones

C. Hot bitumen

D. Bituminous felt

: (13/2007)

In plastering of walls, using cement

mortar the suitable mix proportion of

cement and sand is

(186/2015)

The workability of concrete is affected mainly by

A. Aggregate cement ratio

B. All of these

C. Water cement ratio

D. Water content

(41/20170L)

The setting of quick lime is due to the presence of

A. Oxygen

B. Sulphur dioxide

C. Water

D. Carbon dioxide

NIMI

Which insulating material is used for making switches?

A. PVC

B. Ebonite

C. Porcelain

D. Bakelite

(153/2017)

If w is the percentage of water

required for normal consistency of

cement, water to be added for

determination of initial setting time is

A. 0.5 w

B. 0.85 w

C. 0.75 w

D. 0.62 w

: (114/2023)

Horizontal construction joints in concrete walls are generally provided at

A. Floor level

B. All of these

C. Soffit level

D. Window sill level

: (222/2007)

A solid substance in a fine state of division and forms the bulk of paint

A. Vehicle

B. Base

C. Drivers

D. Coloring pigments

(85/2022)

How much depth of water is required initially for efflorescence test of bricks in cm?

A. 5

B. 7.5

C. 2.5

D. 4.5

.83/2017 OL)

Which among the following can be used as a method for seasoning for removal of sap from timber ?

A. Hot and cold open tank treatment

B. Boiling

C. Creosoting

D. Sir Abel's Process

: (26/2023)

For soundness test using Le- Chatelier apparatus the water

required for creating a cement paste ...........%times the water required

for consistency

A. 0.85

B. 0.7

C. 0.78

D. 0.8

(56/2012)

The normal consistency of Portland cement is

A. 0.15

B. 0.2

C. 0.1

D. 0.25

(58/2017)

The best known abrasive is

A. Diamond

B. Mild steel

C. High carbon steel

D. Brass

: (61/2020)

Low heat cement contains

A. High percentage of

aluminium sulphate and

small percentage of gypsum

B. Small percentage of

aluminium sulphate and high

percentage of lime

C. Small percentage of

tricalcium aluminate and

high percentage of dicalcium silicate

D. Small percentage of lime and gypsum

(11/2016)

The timber whose thickness is less

than 5 cm and the width exceeds 12 cm, called a

A. Log

B. Board

C. Plank

D. Batten

: (74/2016)

This type of glass is tempered, may have distortions and low visibility but it breaks into small dice-like pieces at modulus of rupture of 3600 psi

A. Chromatic glass

B. Laminated glass

C. Float glass

D. Toughened glass

(24/2077 OL)

Adding a thin layer of cement mortar to the surface of concrete

A Laitance

B Re - tempering

C Quartering

D Rendering

.(41/2022)

Which of the following is the accelerator added for the fusion of glass?

A.Nickel

B. Lime

C. Soda

D. Silica

(219/2009)

The main compound of pozzolana is

A. Dicalcium silicate

B. Siliceous

C. Calciumchloride

D. Tricalcium silicate

.(162/2012)

Sand is mixed with lime mortar to

A. Prevent shrinkage and cracking

B. Improve strength

C. Reduce cost

D. Reduce setting time

(114/2023)

As per IS 399 (1963) : Classification of

Commercial Timbers and their Zonal

Distribution, X, Y and Z classification

of timber is based on

A. Availability

B. durability

C. Treatability

D. All of these

(115/2014)

The number of corrugations in a

galvanized corrugated sheet is

usually

(222/2007)

The permissible stress of M 20

concrete in compression in N/mm2 is

A. 8.5

B. 5

C. 7

D. 4

(85/2022)

What is the minimum compressive

strength of first class bricks in kg/

sq.cm?

A. 140

B. 35

C. 25

D. 75

(125/2013)

Which one is not a hardness test :

A. Charpy

B. Brinell

C. Vickers's

D. Rockwell

(144/2007)

Wired glass is prepared by embedding wire-netting in glass plate

A. Manufacture

B. Heating

C. Preparation

D. Rolling

(108/2010)

The slump value for the workability of

concrete for ordinary RCC work for

slabs and beams are :

A. 50 - 100 mm

B. 25 - 50 mm

C. 75 - 150 mm

D. 20 - 30 mm

(28/2011)

Chief chemical constituents of

cement

(74/2016)

This type of glass is made by sandwiching glass panels within a protective layer. It is heavier than normal glass and may cause optical distortions as well. It is tough and protects from UV radiation (99%) and insulates sound by 50%

A. All of these

B. Chromatic glass

C. Float glass

D. Laminated glass

(85/2022)

What is the temperature for

preheating of bricks for the water

absorption test in degree Celsius?

A. 120

B. 130

C. 100

D. 110

(72/2016 OL)

The specific gravity of kerosene is

A. 0.82

B. 0.65

C. 0.75

D. 0.78

(58/2017)

The rate of hydration of cement depend upon its

A. Soundness

B. Consistency

C. Setting time

D.Cement

.: (74/2016)

A float glass is also known as

A. Clear glass

B. Soda lime glass

C. Both of the above

D. None of the above

. (87/2014)

Reason for soaking bricks in water before testing for compressive strength :

A. To get the minimum strength

B. To fill the air voids

C. To distribute load uniformly

D. To reduce dust