Q.1

Teak wood is suitable for

  • sports articles
  • furnitures
  • railway sleepers
  • all the above.
Q.2

Plastic

  • is an organic substance
  • consists of natural or synthetic binders
  • finished products are rigid and stable at normal temperature
  • is capable of flow when necessary heat and pressure are applied
  • All the above.
Q.3

Vanadium steel is generally used for

  • railway switches and crossing
  • bearing balls
  • magnets
  • axles and springs.
Q.4

If the furnace is provided with insufficient fuel at low temperatures, the type of pig iron produced, is called

  • Bessemer pig
  • Grey or foundry pig
  • White or forge pig
  • Mottled pig.
Q.5

Sewer pipes are made of

  • earthen ware
  • stone ware
  • refractory clay
  • terracota
  • all the above.
Q.6

Fibre glass

  • retains heat-longer
  • has a higher strength to weight ratio
  • is shock proof and fire retardent
  • does not decay
  • all the above.
Q.7

Due to attack of dry rot, the timber

  • cracks
  • shrinks
  • reduces to powder
  • none of these.
Q.8

Brittleness of cold is due to an excess of

  • sulphur
  • carbon
  • phosphorus
  • silicon.
Q.9

In a mortar, the binding material is

  • cement
  • sand
  • surkhi
  • cinder.
Q.10

Pick up the correct statement from the following: Method of sawing timber

  • tangentially to annual rings, is known as tangential method.
  • in four quarters such that each board cuts annual rings at angles not less than 45°, is known as quarter sawing method.
  • cut out of quarter logs, parallel to the medullary rays and perpendicular to annual rings, is known as radial sawing.
  • all the above.
Q.11

Black marble is generally found in the district of

  • Jodhpur
  • Jaipur
  • Jabalpur
  • Jaisalmer
  • Pune.
Q.12

Which one of the following is an air binding material ?

  • Gypsum
  • Acid-resistant cement
  • Quick lime
  • All of these.
Q.13

Galvanising means covering iron with a thin coat of

  • tin
  • zinc
  • glaze
  • coal tar.
Q.14

Bitumen felt

  • is used as water proofing material
  • is used as damp proofing material
  • is made from bitumen and hessian fibres
  • all the above.
Q.15

Initial setting time of cement for asbestos cement products should be not less than

  • 30 minutes
  • 50 minutes
  • 75 minutes
  • 90 minutes.
Q.16

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

  • Plutonic rocks
  • Hypabyssal rocks
  • Volcanic rocks
  • Igneous rocks.
Q.17

Kaolin is chemically classified as

  • metamorphic rock
  • argillaceous rock
  • calcareous rock
  • silicious rock.
Q.18

Pick up the correct statement from the following:

  • In basic Bessemer process, the steel heats the converter
  • In open-hearth process, the furnace heats the steel
  • In Siemens process, the impurities of pig iron are oxidised by the oxygen of the ore
  • all the above.
Q.19

Stainless steel contains

  • 18% of chromuim and 8% nickel
  • 8% of chromium and 18% of nickel
  • 12% of chromium and 36% of nickel
  • 36% of chromium and 12% of nickel.
Q.20

The slag which floats on the surface of the molten iron generally contains

  • Lime (CaO) 45%
  • Silica (SiO2) 35%
  • Alumina (Al2O3) 12%
  • MgO, CaSO4, KMnO2 and FeO 8%
  • all the above.
Q.21

The filler used in plastic bitumen, is

  • shale powder
  • talc powder
  • asbestos powder
  • plastic powder
  • none of these.
Q.22

Pick up the correct statement from the following:

  • The theory of formation of concrete is based on the phenomena of formation of voids
  • The bulking of sand is taken into account while volumetric proportioning of the aggregates
  • The dry sand and the sand completely flooded with water, have practically the same volume
  • The expansion and contraction joints are provided if concrete structures exceed 12 m in length
  • All the above.
Q.23

For the manufacture of Portland cement, the proportions of raw materials used, are

  • lime 63% ; silica 22% ; other ingredients 15%
  • lime 22% ; silica 63% ; other ingredients 15%
  • silica 40% ; lime 40% ; other ingredients 20%
  • silica 70% ; lime 20% ; other ingredients 10%.
Q.24

Lacquer paints

  • are generally applied on structural steel
  • are less durable as compared to enamel paints
  • consist of resin and nitro-cellulose
  • contain alcohol as thinner
  • all the above.
Q.25

Wrought iron contains carbon upto

  • 0.25%
  • 1.0%
  • 1.5%
  • 2%.
Q.26

Clay and silt content in a good brick earth must be at least

  • 50%
  • 40%
  • 30%
  • 25%
  • 20%.
Q.27

The most fire resistant paints are :

  • enamel paints
  • aluminium paints
  • asbestos paints
  • cement paints.
Q.28

A good quality stone absorbs water less than

  • 5%
  • 10%
  • 15%
  • 20%
  • 25%.
Q.29

For preparing porcelains, the clay should be

  • sufficiently pure
  • of high degree of tanacity
  • of good plasticity
  • All the above.
Q.30

In the method of condensation polymerization,

  • low-molecular substances are removed from the high molecular substance
  • the reaction proceeds with an evolution of ammonia
  • the reaction proceeds with an evolution of hydrogen chloride
  • all the above.
Q.31

The variety of pig iron used for the manufacture of steel by Bessemer process, is

  • Bessemer pig
  • Grey pig
  • White forge pig
  • Mottled pig.
Q.32

Quartzite is a

  • metamorphic rock
  • argillaceous rock
  • calcareous rock
  • silicious rock.
Q.33

The process of manufacturing steel by heating short lengths of wrought iron bars mixed with charcoal in fire clay crucibles and collecting the molten iron into moulds, is known as

  • Cementation process
  • Crucible process
  • Bessemer process
  • Open hearth process.
Q.34

Pick up the hypabyssal rock from the following:

  • Granite
  • Dolerite
  • Basalt
  • All the above.
Q.35

Depending on the chemical composition and mechanical properties, iron may be classified as

  • cast iron
  • wrought iron
  • steel
  • all the above.
Q.36

Minimum ofof iron, is available in

  • Magnetite
  • Red haemetite
  • Limonite
  • Siderite
  • Black band.
Q.37

For the manufacture of plywood, veneers are placed so that grains of adjacent veneers

  • run at right angles
  • parallel
  • inclined at 45°
  • inclined at 60°.
Q.38

Apiece of sawn timber whose cross-sectional dimensions exceed 5 cm, in one direction andcm in the other direction, is called a

  • cant
  • deal
  • baulk
  • strip.
Q.39

Inhaling of fly-ash over a long period causes

  • silicosis
  • fibrosis of lungs
  • bronchitis
  • pneumonitis
  • All of these.
Q.40

The commonly used lime in white washing, is

  • white lime
  • fat lime
  • hydraulic lime
  • lime
  • quick lime.
Q.41

Resins are

  • not soluble in water
  • soluble in spirit
  • used in varnishes
  • left behind on evaporation of oil
  • all the above.
Q.42

Refractory bricks are used for

  • retaining walls
  • columns
  • piers
  • combustion chambers.
Q.43

Pick up the correct statement from the following:

  • In stone arches, the stones are placed with their natural beds radial
  • In cornices, the stones are placed with their natural beds as vertical
  • In stone walls, the stones are placed with their natural beds as horizontal
  • All the above.
Q.44

Asbestos cement

  • is brittle
  • warps due to changes in humidity
  • strength is lowered when saturated by water
  • all the above.
Q.45

Pick up the polymineralic rock from the following:

  • Quartz sand
  • Pure gypsum
  • Magnesite
  • Granite
  • None of these.
Q.46

Bessemer process is used for the manufacture of

  • Pig iron
  • cast iron
  • Wrought iron
  • Steel.
Q.47

The portion of the brick without a triangular corner equal to half the width and half the length, is called

  • closer
  • queen closer
  • king closer
  • squint brick.
Q.48

If P is the percentage of water required for normal consistency, water to be added for determination of initial setting time, is

  • 0.70 P
  • 0.75 P
  • 0.80 P
  • 0.85 P
  • 0.90 P.
Q.49

Pick up the correct statement from the following:

  • Alexander Parkes, a Scottish chemist prepared a hard material by mixing camphor and alcohol with nitro cellulose and called it, as Parkesite
  • Dr. L. Bakeland, a Belgian scientist prepared a product known as Bakelite
  • Pollark, an Austrian scientist prepared a substance from urea and formaldehyde and called it Plastic
  • All the above.
Q.50

Polymerization helps to improve the property of

  • strength
  • rigidity
  • elasticity
  • all of these.
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