Materials and Construction Quiz 7
1 / 50
Stainless steel contains__________?
2 / 50
Steel rods are used in reinforced concrete to increase its _______ strength?
3 / 50
Presence of high amount of silicon in cast iron_________?
4 / 50
Spark plugs, ignition tubes and electrodes are made of nickel _____ alloys?
5 / 50
Reactor used in the production of polyvinyl chloride (PVC) is made of______?
6 / 50
Rotary kilns in cement industry are lined with ______bricks?
7 / 50
Silico-manganese steels (containing 0.7% Mn, 0.5% C and 2% Si)_____?
8 / 50
Presence of even very minute amount (say 0.1%) of _______ in copper, reduces its electrical conductivity very seriously?
9 / 50
Silicone rubber is not resistant to the corrosive action of______?
10 / 50
Spray dryer for evaporating milk to produce milk powder is made of__________?
11 / 50
Presence of cobalt in steel improves its______?
12 / 50
Tank furnace used for melting of glass is made of_____?
13 / 50
Shock resisting steels should possess high_____?
14 / 50
Sherardizing process is used for___________?
15 / 50
Refined acetic acid storage vessel are made of_____?
16 / 50
Softness of silver can be converted into hardness by alloying it with small quantity of__________?
17 / 50
Stainless steel is not corroded by _______?
18 / 50
SO3 is absorbed using H2SO4 in a______?
19 / 50
Steel balls for ball bearings are generally made of _______ steel?
20 / 50
Presence of even 0.005% of ______ in copper makes it highly brittle, rendering it useless for wire-drawing?
21 / 50
Presence of high phosphorous in cast iron increases its______?
22 / 50
Rubber lined pumps can be used to pump__________?
23 / 50
Rubber lined vessels are corroded by the action of___________?
24 / 50
Residual magnetism in steel for magnets is increased by the addition of___________?
25 / 50
Teflon (PTFE) is corroded by________?
26 / 50
Presence of nitrogen in steel_____?
27 / 50
Steel tower used for the storage of oleum_________?
28 / 50
Sulphuric acid is mixed with ground phosphate rock (to produce phosphoric acid) in a steel digestor lined with_______?
29 / 50
Sulphuric acid is mixed with ground phosphate rock (to produce phosphoric acid) in a steel digestor lined with___________?
30 / 50
Specify the material of construction suitable for handling concentrated HNO3 at 100?C ?
31 / 50
Spark plugs are made of________?
32 / 50
Steel will respond to hardening by heat treatment processes, only when the minimum carbon content in it is ______ percent?
33 / 50
Purity of electrical grade aluminium should be ? ______ percent?
34 / 50
Rotary driers are generally made of________?
35 / 50
Reduction in the grain size reduces the ________ of the material?
36 / 50
Presence of nickel in steel improves its__________?
37 / 50
Presence of silicon in steel_______?
38 / 50
Silicon percentage in iron castings to have maximum hardness should be about___________?
39 / 50
Soap kettle used in the production of laundry soap is made of______?
40 / 50
Silicon percentage in acid resistant cast iron is about_________?
41 / 50
Sulphur melting pit in the sulphuric acid plant is made of___________?
42 / 50
Straight silicon steel (containing Si from 0.5 to 5%) because of their low hysteresis loss and high magnetic permeability are used for electrical appliances. Which of the following electrical appliances made of silicon steel contains maximum percentage of silicon (about 4%) ?
43 / 50
Presence of 0.3 to 0.5% arsenic in copper increases its______?
44 / 50
Slow and progressive deformation of a material with time under constant stress is called_____?
45 / 50
Softening of hardened steel is done by its_______?
46 / 50
Steel pipes are normally manufactured by _______ process?
47 / 50
Sulphuric acid pickling tanks are lined with___________?
48 / 50
Presence of manganese in alloy steel improves its_____?
49 / 50
Tempering of steel is done to make it_________?
50 / 50
Slow plastic deformation of metals under a constant stress is termed as ______ failure?
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