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