Q.1

In the cement the compound quickest to react with water, is

  • Tricalcium aluminate
  • Tetra-calcium alumino-ferrite
  • Tricalcium silicate
  • Dicalcium silicate.
Q.2

For melting one tonne of cast iron

  • 700 m3 air is required
  • 20 kg limestone is required
  • one quintal coke is required
  • all the above.
Q.3

The variety of pig iron used for manufacture of wrought iron, is

  • Bessemer pig
  • Grey or foundry pig
  • White forge pig
  • Mottled pig.
Q.4

If the iron ore contains clay as an impurity, the flux added during calcination, is

  • clay
  • lime stone
  • argillaceous iron ore
  • all the above.
Q.5

A 1st class brick immersed in water forhours, should not absorb water (by weight) more than

  • 10%
  • 15%
  • 20%
  • 25%
  • 5%.
Q.6

The proportions of charcoal, saltpetre and sulphur in gun powder by weight, are respectively:

  • 15, 75, 10
  • 75, 10, 15
  • 10, 15, 75
  • 10, 75, 15.
Q.7

Quick lime (or caustic lime)

  • is obtained by the calcination of pure lime stone
  • has great affinity to moisture
  • is amorphous
  • All the above.
Q.8

Minimum required water cement ratio for a workable concrete, is

  • 0.30
  • 0.40
  • 0.50
  • 0.60
  • 1.0.
Q.9

The rocks in which argil (or clay) predominates, are called

  • sillicious rocks
  • argillaceous rocks
  • calcareous rocks
  • igneous rocks.
Q.10

Shingle is

  • decomposed laterite
  • crushed granite
  • water bound pebbles
  • air weathered rock.
Q.11

For sanitary pipes and chemical stonewares,

  • salt glazing is used
  • lead glazing is used
  • opaque glazing is used
  • None of these.
Q.12

Pick up the correct statement from the following:

  • The average crushing strength of hand moulded bricks is 6000 t/m2
  • The average tensile strength of hand moulded brick is 200 t/m2
  • The average shearing strength of hand moulded brick is 600 t/m2
  • All the above.
Q.13

Expanded metal is

  • manufactured from steel sheets
  • used for reinforced concrete in road pavements
  • measured in term of SWM (shortway mesh) and LWM (long way mesh)
  • all the above.
Q.14

Water paint is a

  • white wash
  • colour wash
  • whiting
  • distemper
  • all the above.
Q.15

Pick up the correct statement from the following:

  • For thin structures subjected to wetting and drying, the water cement ratio should be 0.45
  • For mass concrete structures subjected to wetting and drying, the water ratio should be 0.55
  • For thin structures which remain continuously under water, the water-cement ratio by weight should be 0.55
  • For massive concrete structures which remain continuously under water, the water cement ratio by weight should be 0.65
  • All the above.
Q.16

The standard size of masonry bricks, is

  • 18 cm x 8 cm x 8 cm
  • 19 cm x 9 cm x 9 cm
  • 20 cm x 10 cm x 10 cm
  • 21 cm x 11 cm x 11 cm
  • none of these.
Q.17

A pug mill is used for

  • softening brick earth
  • moulding brick earth
  • tempering brick earth
  • providing brick earth
  • all the above.
Q.18

Plywood is made from

  • common timber
  • bamboo fibre
  • teak wood only
  • asbestos sheets.
Q.19

Pick up the correct statement from the following:

  • Horn blende mineral is brittle
  • Muscovite is also known as white mica and potashmica
  • Biotite is also known as blackmica
  • All the above.
Q.20

When a brick is immersed in water forhours and then dried, if

  • no grey or white deposits appear on the surface, the brick is free from soluble salts
  • 10 per cent surface is covered with grey or white deposits, the brick has slight efflorescence
  • 50 per cent surface is covered with grey or white deposits, the brick has serious efflorescence
  • All the above.
Q.21

Cement is said to be of good quality if

  • its colour is not greenish grey
  • one feels cool by thrusting one's hand in the cement bag
  • it is not smooth when rubbed in between fingers
  • a handful of cement thrown into a bucket of water does not float
  • none of these.
Q.22

Blister steel

  • is obtained by cementation process
  • is full of fissures and cavities
  • can not be forged
  • can be easily welded
  • all the above.
Q.23

Slacking of lime is affected by

  • keeping it exposed to air
  • immersing the lime in water
  • crushing the lime lumps
  • none of these.
Q.24

Geologically, marble is known as

  • sedimentary rock
  • igneous rock
  • metamorphic rock
  • stratified rock.
Q.25

Pick up the correct statement from the following:

  • soft stones are required for carving
  • light stones are required for arches
  • hard stones are required to stand high pressure
  • All the above.
Q.26

Rocks formed due to alteration of original structure due to heat and excessive pressure are called

  • sedimentary rocks
  • igneous rocks
  • metamorphic rocks
  • none of these.
Q.27

A badly mixed cement concrete results in

  • segregation
  • bleeding
  • honey combing
  • none to these.
Q.28

Pick up the plutonic rock from the following:

  • Basalt
  • Granite
  • Dolerite
  • All the above.
Q.29

The steel used for rails under heavy traffic and on sharp curves, is

  • Nickel steel
  • Chrome steel
  • Magnese steel
  • Vanadium steel.
Q.30

The cracks which extend from bark towards the sap wood in the cross section of a tree, are called

  • radial shakes
  • star shakes
  • heart shakes
  • cup shakes.
Q.31

The rock generally used for roofing, is

  • granite
  • basalt
  • slate
  • pumice.
Q.32

Seasoning of timber is done

  • to make it water proof
  • to paint its surface
  • to increase its temperature
  • to remove water.
Q.33

A good brick earth should contain :

  • about 20% to 30% of alumina
  • about 50% to 60% of silica
  • not more than 5% of lime
  • about 5 to 6% of oxide of lime
  • All the above.
Q.34

Soundness test of cement determines

  • quality of free lime
  • ultimate strength
  • durability
  • initial setting
  • all the above.
Q.35

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

  • Plutonic rocks
  • Hypabyssal rocks
  • Volcanic rocks
  • Ignoeous rocks.
Q.36

In arches, stratified stones are placed so that their planes are

  • parallel
  • perpendicular
  • radial
  • none of these.
Q.37

Cast steel is manufactured by

  • Cementation process
  • Crucible process
  • Bessemer process
  • Open hearth process.
Q.38

The most important constituent of varnish, is

  • drier
  • solvent
  • resin
  • all the above.
Q.39

The steel used in R.C.C. work is

  • stainless steel
  • mild steel
  • high carbon steel
  • wrought iron.
Q.40

Name the type of cement from the following for canal linings :

  • sulphate resisting cement
  • rapid hardening cement
  • quick setting cement
  • pozzuolana cement.
Q.41

The compound of Portland cement which contributes to the strength after two to three years is

  • Tricalcium silicate
  • Di-calcium silicate
  • Tricalcium aluminate
  • Tetracalcium alumino ferrite.
Q.42

Stainless steel resists corrosion due to

  • carbon
  • sulphur
  • vanadium
  • chromium
  • maganese.
Q.43

Pick up the correct statement regarding low heat cement from the following:

  • It possesses less compressive strength
  • Its initial setting time is about one hour
  • Its final setting time is about 10 hours
  • Its mainly used for mass concrete work
  • All the above.
Q.44

The pigment used in paints for corrosive resistance, is

  • white lead
  • ferrous oxide
  • zinc white
  • red lead
  • gypsum.
Q.45

If the ore impurities is

  • clay, lime stone is used as flux
  • lime stone, clay is used as flux
  • quartz, lime stone and argallaceous iron ores are used as flux
  • All the above.
Q.46

The lime which contains mainly calcium oxide and slacks with water, is

  • fat lime
  • quick lime
  • hydraulic lime
  • poor lime
  • none of these.
Q.47

The weight of a good quality brick when immersed in water for a period ofhours should not exceed the weight of dry brick

  • 20%
  • 15%
  • 10%
  • None of these.
Q.48

Sea sand used in structures causes

  • dampness
  • efflorescence
  • disintegration
  • All of these.
Q.49

The specific gravity of marble, is

  • 2.50
  • 2.60
  • 2.66
  • 2.72
  • 3.00.
Q.50

The base material for distemper, is

  • chalk
  • lime
  • lime putty
  • cement wash.
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