Materials and Construction Quiz 7
1 / 50
Silico-manganese steels (containing 0.7% Mn, 0.5% C and 2% Si)_____?
2 / 50
Presence of even very minute amount (say 0.1%) of _______ in copper, reduces its electrical conductivity very seriously?
3 / 50
Tempering of steel is done to make it_________?
4 / 50
Sulphuric acid is mixed with ground phosphate rock (to produce phosphoric acid) in a steel digestor lined with___________?
5 / 50
Presence of high amount of silicon in cast iron_________?
6 / 50
Rotary kilns in cement industry are lined with ______bricks?
7 / 50
Residual magnetism in steel for magnets is increased by the addition of___________?
8 / 50
Presence of 0.3 to 0.5% arsenic in copper increases its______?
9 / 50
Rotary driers are generally made of________?
10 / 50
Purity of electrical grade aluminium should be ? ______ percent?
11 / 50
Sulphuric acid is mixed with ground phosphate rock (to produce phosphoric acid) in a steel digestor lined with_______?
12 / 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%) ?
13 / 50
Specify the material of construction suitable for handling concentrated HNO3 at 100?C ?
14 / 50
Softness of silver can be converted into hardness by alloying it with small quantity of__________?
15 / 50
Steel will respond to hardening by heat treatment processes, only when the minimum carbon content in it is ______ percent?
16 / 50
Rubber lined vessels are corroded by the action of___________?
17 / 50
Sulphur melting pit in the sulphuric acid plant is made of___________?
18 / 50
Tank furnace used for melting of glass is made of_____?
19 / 50
Reactor used in the production of polyvinyl chloride (PVC) is made of______?
20 / 50
Reduction in the grain size reduces the ________ of the material?
21 / 50
Steel rods are used in reinforced concrete to increase its _______ strength?
22 / 50
Rubber lined pumps can be used to pump__________?
23 / 50
Stainless steel is not corroded by _______?
24 / 50
Shock resisting steels should possess high_____?
25 / 50
Slow and progressive deformation of a material with time under constant stress is called_____?
26 / 50
Steel balls for ball bearings are generally made of _______ steel?
27 / 50
Steel pipes are normally manufactured by _______ process?
28 / 50
Presence of even 0.005% of ______ in copper makes it highly brittle, rendering it useless for wire-drawing?
29 / 50
Silicon percentage in acid resistant cast iron is about_________?
30 / 50
Spark plugs, ignition tubes and electrodes are made of nickel _____ alloys?
31 / 50
Presence of silicon in steel_______?
32 / 50
Soap kettle used in the production of laundry soap is made of______?
33 / 50
Presence of high phosphorous in cast iron increases its______?
34 / 50
Silicone rubber is not resistant to the corrosive action of______?
35 / 50
Refined acetic acid storage vessel are made of_____?
36 / 50
Sulphuric acid pickling tanks are lined with___________?
37 / 50
Sherardizing process is used for___________?
38 / 50
Presence of nickel in steel improves its__________?
39 / 50
SO3 is absorbed using H2SO4 in a______?
40 / 50
Presence of manganese in alloy steel improves its_____?
41 / 50
Spray dryer for evaporating milk to produce milk powder is made of__________?
42 / 50
Presence of nitrogen in steel_____?
43 / 50
Presence of cobalt in steel improves its______?
44 / 50
Slow plastic deformation of metals under a constant stress is termed as ______ failure?
45 / 50
Spark plugs are made of________?
46 / 50
Teflon (PTFE) is corroded by________?
47 / 50
Steel tower used for the storage of oleum_________?
48 / 50
Silicon percentage in iron castings to have maximum hardness should be about___________?
49 / 50
Softening of hardened steel is done by its_______?
50 / 50
Stainless steel contains__________?
Provide Your Information
Your score is
The average score is 0%
Restart quiz
