Q.1

Quartzite, a metamorphic stone is

  • hard
  • brittle
  • crystalline
  • compact
  • All the above.
Q.2

Cast iron is used for

  • structural works in beams
  • small sized water pipes
  • columns and struts
  • none to these.
Q.3

Turpentine oil is used in paints as

  • thinner
  • vehicle
  • base
  • drier.
Q.4

The type of steel used for precision levelling staff, is

  • Titanium steel
  • Carbon steel
  • Invar
  • Stainless steel.
Q.5

Wrought iron is manufactured from pig iron by

  • refining
  • puddling
  • shingling
  • rolling
  • all the above.
Q.6

The process of decarbonising the pig iron completely and then adding proper percentage of carbon for manufacturing steel, is called

  • Cementation process
  • crucible process
  • Bessemer process
  • Open hearth process.
Q.7

Pick up the correct statement from the following:

  • Plastics have generally low melting point
  • The coefficient of thermal expansion of plastics is about three times than that of steel
  • The acoustical boards prepared by impregnating fibre-glass with phenolic resins has absorption coefficient of about 0.67
  • All the above.
Q.8

The hardest rock is

  • marble
  • diamond
  • talc
  • quartz.
Q.9

During pudding

  • molten metal is kept clear of the fuel
  • carbon is converted into carbonic acid gas
  • silicon forms a slag
  • metal is heated by the burning of gases
  • all the above.
Q.10

Pick up the correct statement from the following:

  • The phenol is carbolic acid
  • The phenol is either extracted from coal-tar or prepared from benzene
  • Phenol reacts with formaldehyde, to form phenol formaldehyde resin
  • The plastics prepared from phenol-formaldehyde are used for paints, varnishes, w.c. seats
  • All the above.
Q.11

In paints, the pigment is responsible for

  • durability
  • colour
  • smoothness
  • glassy face
  • none of these.
Q.12

Dextrin is

  • animal glue
  • starch glue
  • albumin glue
  • rubber based adhesive
  • none to these.
Q.13

German silver is an alloy of

  • zinc, lead and nickel
  • silver, gold and lead
  • copper, nickel and zinc
  • copper, brass and zinc
  • brass, silver and zinc.
Q.14

Fibre boards can be

  • distempered
  • painted
  • painted and distempered
  • used for furniture.
Q.15

The operation of removal of impurities or clay adhering to iron ores, is known as

  • dressing
  • calcination
  • roasting
  • smelting.
Q.16

Formula for quick lime, is

  • CaCO3
  • CaO
  • CO3CO2
  • none to these.
Q.17

Pick up the incorrect statement from the following:

  • Plastics are chemical resistant
  • Plastics are durable
  • Plastics are ductile
  • Plastics are excellent electric insulators.
Q.18

Pick up the correct statement from the following:

  • Catalysts are added to assist and accelerate the hardening of resin,
  • The fillers are inert materials and they impart strength and hardness
  • Fibrous fillers increase thermal resistance
  • All the above.
Q.19

If water required for 1 bag of cement islitres, the water cement ratio is :

  • 0.40
  • 0.50
  • 0.60
  • None of these.
Q.20

Pick up the correct statement from the following:

  • Corrugated sheet iron is made by passing plain sheets between grooved rollers
  • Strength and stiffness of corrugated sheets are considerably increased
  • Corrugated sheets are generally gal-venised to protect iron from corrosion by rust
  • Corrugated sheets are generally used on slanting roofs
  • all the above.
Q.21

Pick up the correct statement from the following:

  • Solder material is an alloy which melts at a temperature above 400°C
  • Brazing is done at temperature above 600°C to 1100°C
  • Brazing joint is stronger than the solder joint
  • all the above.
Q.22

Quick setting cement is produced by adding

  • less amount of gypsum in very fine powdered form
  • more amount of gypsum in very fine powdered form
  • aluminium sulphate in very fine powdered form
  • pozzolana in very fine powdered form
  • none of these.
Q.23

For the manufacture of stainless steel, steel is mixed with

  • chromium
  • nickel
  • tungsten
  • none of these.
Q.24

Lime concrete is generally used for

  • wall foundations
  • flooring at ground level
  • both (a) and (b)
  • neither (a) nor (b).
Q.25

Portland cement manufactured from pure white chalk and clay but free from iron-oxide, is known as

  • quick setting cement
  • rapid hardening cement
  • white cement
  • low heat Portland cement.
Q.26

Stones used for ornamental work must be

  • soft
  • hard
  • light
  • heavy.
Q.27

Bituminous fells are used for

  • covering A.C. sheets
  • covering sloping roofs
  • D.P.C.
  • none to these.
Q.28

Dry rot

  • cracks the timber
  • reduces the strength of timber
  • reduces the timber to powder
  • shrinks the timber
  • spoils the appearance of timber.
Q.29

Iron ore may contain

  • carbon
  • silicon
  • sulphur
  • phosphorus and maganese
  • all the above.
Q.30

Pick up the correct statement from the following:

  • The substance which consists of one primary chemical, is known as monomer
  • The polymer consists of thousands of monomers joined together
  • The polymer molecule is called macro-molecule
  • A polymetric material consists of a large number of long-chain molecules
  • All the above.
Q.31

Pick up the correct statement from the following:

  • Quick lime is obtained by burning pure lime stone:
  • Hydraulic lime is obtained by burning lime stone containing clay 5% to 30%
  • Poor lime is obtained by burning lime stone containing impurities more than 5%
  • All the above.
Q.32

The minimum compressive strength of Ilnd class bricks should be

  • 75 kg/cm2
  • 90 kg/cm2
  • 100 kg/cm2
  • 120 kg/cm2
  • 150 kg/cm2.
Q.33

Which one of the following polymers is obtained from condensation polymerization?

  • phenol formaldehyde
  • carbamide
  • melamine-formaldehyde
  • all of these.
Q.34

Wrought iron is used for

  • structural works in beams
  • small sized water pipes
  • columns and struts
  • none to these.
Q.35

Bulking of sand is caused due to

  • surface moisture
  • air voids
  • viscosity
  • clay contents
  • all the above.
Q.36

The presence of original rounded surface on the manufactured piece of timber, is called

  • Wane
  • Torn grain
  • Diagonal grain
  • Chipmark.
Q.37

Stuco paints are suitable for

  • stone masonry
  • brick walls
  • both (a) and (b)
  • neither (a) nor (b).
Q.38

The weight of 1 m3 of brick earth, is about

  • 1200 kg
  • 1500 kg
  • 1800 kg
  • 2000 kg.
Q.39

The timber having maximum resistance against white ants, is obtained from

  • chir
  • shisham
  • sal
  • teak.
Q.40

Smith's test of stones is performed to find out

  • the presence of soluble matter of stone
  • the compressive strength of the stone
  • the hardness of the stone
  • the toughness of the stone.
Q.41

Pozzolana (or surkhi) is used in lime

  • to impart hydraulicity
  • to prevent shrinkage
  • to decrease the cost of construction
  • to decrease the setting time.
Q.42

Knots in timber are

  • defects caused by crushing fibres
  • splits radiating from the centre
  • speckled strains
  • signs of branches cut off.
Q.43

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

  • water varnish
  • spirit varnish
  • turpentine varnish
  • oil varnish
  • none of these.
Q.44

Cast iron contains carbon approximately

  • 1.5% to 5.5%
  • 0.05% to 1.75%
  • 0.250%
  • none to these.
Q.45

Good quality cement contains higher percentage of

  • Tricalcium silicate
  • Di-calcium silicate
  • Tri-calcium aluminate
  • Tetra calcium alumino ferrite
  • all the above.
Q.46

Upto a maximum ofof iron, is available in

  • Magnetite
  • Red haemetite
  • Limonite
  • Siderite
  • Iron pyrites.
Q.47

Glazing of clay products, is done

  • to improve their appearance
  • to protect them from atmospheric effect
  • to protect them from corrosive action
  • all the above.
Q.48

Pick up the correct statement from the following:

  • Bull's trench kiln a trench excavated in ground
  • Hoffman's kiln is constructed overground
  • Tunnel Kiln is constructed as a tunnel
  • All the above.
Q.49

Plastic asphalt is

  • used as a water proofing layer over roof
  • a mixture of cement and asphalt
  • a natural asphalt
  • a refinery product.
Q.50

Soundness of cement is tested by

  • Vicat's apparatus
  • Le-chatelier apparatus
  • compressive strength testing apparatus
  • none of the these.
0 h : 0 m : 1 s