Chemical Engineering Basics Quiz 7
1 / 50
Melting point & boiling points of liquid oxygen are respectively ? 218.8?C & ? 183?C, while the same for liquid nitrogen is ? 210?C & ? 195.8?C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8 ?
2 / 50
Matte smelting is used in the extraction of_______?
3 / 50
Large diameter reinforced cement concrete (RCC) pipes are generally joined by ______ joint ?
4 / 50
Metalloids_________?
5 / 50
Limestone is added in the blast furnace (during pig iron manufacture) to________?
6 / 50
Iron content in Indian iron ore is about __________ percent?
7 / 50
Increasing the carbon content of steel__________?
8 / 50
In the formation of cermets, the ratio of ceramic material to metallic material is usually 80:20. Which of the following is a cermet ?
9 / 50
Maximum change in the hardness of martensite occurs in the carbon content range of ______ percent in steel?
10 / 50
Maximum hardenability of steel depends upon its_________?
11 / 50
Joule-Thomson co-efficient is the ratio of_________?
12 / 50
Maximum amount of thermal radiation is emitted at all wavelengths at any specified temperature by a/an _______ body?
13 / 50
Latent heat of dry steam at atmospheric pressure is 539 Kcal/kg; which ______ with increase in the pressure of steam?
14 / 50
LVDT used for displacement measurement is a/an ________ Transducer?
15 / 50
Metal shots used in shot blasting are made of ________?
16 / 50
Limestone addition in the blast furnace is done to flux ________ present in the raw materials?
17 / 50
Large scale fire on fuel gas line is normally extinguished by_________?
18 / 50
Machinability of hard alloys and tool steels is improved by_______?
19 / 50
Insulation of liquid surface can be achieved by ______ on top of its surface?
20 / 50
Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m2 .k), when the insulation thickness is _________ mm?
21 / 50
Liquid nitrogen containers can be made from _____?
22 / 50
Lead is poured into the joint between two ________ pipes ?
23 / 50
Maximum permissible air velocity in pipelines is about _______ metre/second ?
24 / 50
Liquor poisoning generally occurs due to the presence of ________ in it?
25 / 50
Increase in the entropy of a system represents the_______?
26 / 50
Magnesium is present in_____?
27 / 50
Laser is a device to produce_____?
28 / 50
Materials having _________ lattice structure are usually the most ductile ?
29 / 50
Lead is poured into the joints between two _____ pipes?
30 / 50
Lead is poured into the joint between two _______ pipes?
31 / 50
L.D. (Linz-Donawitz) converter is used in the production of______?
32 / 50
Internal energy of a gas obeying Van-Der-Waals equation of state, [p + (a/v2)] (V ? b) = RT, depends upon its_____?
33 / 50
Lead pencil contains______?
34 / 50
Maximum consumption of limestone is in the ______ industry?
35 / 50
In TIG welding, thoriated tungsten electrodes are used, because it ______?
36 / 50
Mho?s scale of hardness, which consists of 10 standard minerals is used for the measurement of ________ hardness?
37 / 50
Material of construction of foundry crucible is __________?
38 / 50
Maximum permissible sulphur content in steel is _______ percent ?
39 / 50
Isotropic materials have the same _________ in all directions?
40 / 50
Materials having resistivity ranging from 1 to 100 ohm. cm is termed as_____?
41 / 50
Midrex process of sponge iron production uses reformed natural gas as the reducing agent, which uses iron ore in the form of__________?
42 / 50
Metallic surveying tapes are made of ______ which has a low co-efficient of expansion & enough strength ?
43 / 50
Methyl orange indicator turns_______?
44 / 50
Inertial forces are obtained, when the elastic forces are multiplied by _______ number?
45 / 50
Load cells used for the measurement of weight has_______?
46 / 50
Increase in temperature, in general results in the______?
47 / 50
M10 index of coke indicates its______?
48 / 50
Increasing sulphur content in pig iron tends to make it _________?
49 / 50
Main constituent of bone ash is______?
50 / 50
Lead is added to 60:40 brass primarily to improve__________?
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