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Chemical Engineering Basics Quiz 4

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Chemical Engineering Basics Quiz 4

1 / 50

Cold cracking in the heat affected zone of a high strength steel weld can take place because of the_____?

2 / 50

Earing is a defect found in steels after the following metal working operation ?

3 / 50

Chlorine acts as a bleaching agent only in the presence of ________?

4 / 50

Corrosion rate cannot be lowered by reducing the _________ of the corroding medium?

5 / 50

Dislocation cross-slip is difficult in those materials, which have_____?

6 / 50

Depreciation of machines fails under the indirect expenses head. As per income tax regulations, it is calculated by the ___________ method?

7 / 50

Compressed dry air is used as the cutting fluid, while machining______?

8 / 50

Copper deposits are found in India at the following location ?

9 / 50

Dislocations are ________ defects?

10 / 50

During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to______?

11 / 50

Corrosion is______?

12 / 50

Corrosion of metals cannot be prevented by its___________?

13 / 50

Cupola produces __________ iron?

14 / 50

Diamagnetic materials_____?

15 / 50

Cold chisel & hammers are made of__________?

16 / 50

Cobalt ? 60 is used as a source of ______ in medical therapy & industrial radiography?

17 / 50

Desalination of water___________?

18 / 50

Cold working of a material results in increase in hardness, which is termed as the _______ hardening ?

19 / 50

Common salt is produced from sea water in India generally by the _________ method?

20 / 50

Electrochemical corrosion can occur, only if _________ is present in contact with metal?

21 / 50

Damage to metal surface by mechanical action is called______?

22 / 50

Coarse grained steels have______?

23 / 50

Density in the solid state is slightly less than that in its liquid state, in case of______?

24 / 50

Difference at any instant between the value of the controlled variable and the set point is called the___________?

25 / 50

During sensible heating of humid air___________?

26 / 50

Dew point temperature always gives an indication of the ___________ of the moist air ?

27 / 50

Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of ________ gms of zinc per m2 of steel strip ?

28 / 50

Dowtherm is a______?

29 / 50

Co-efficient of performance of a Carnot cycle refrigerator operating between ? 23?C and + 27?C is _________?

30 / 50

Coating provided on the electrodes used in the arc welding is not expected to__________?

31 / 50

Cold heading or upsetting is categorised as the _________ process ?

32 / 50

Direct conversion of thermal energy to electrical energy is facilitated by the______?

33 / 50

During sensible cooling of air, its wet bulb temperature ?

34 / 50

Dryness fraction of dry steam is__________?

35 / 50

Dephosphorization of molten pig iron is favoured by_________?

36 / 50

Current employed in resistance welding ranges from ______ kVA/cm2?

37 / 50

Chromium molybdenum steel cannot be welded using _______ welding ?

38 / 50

Diameter of the rivet to be provided on a 20 mm. thick boiler plate will be _______ mm?

39 / 50

Constituents of stellite are ______?

40 / 50

Cold chisel?s hammers are made of_____?

41 / 50

Dies for wire drawing are generally made of___________?

42 / 50

Consumable electrodes are used in the ______ welding?

43 / 50

Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot_______?

44 / 50

Dry saturated steam can be converted into super heated steam by______?

45 / 50

Colour comparator is used to measure the_____?

46 / 50

Closeness of packing is maximum in case of ______ crystal lattice?

47 / 50

Drossing is a _________ operation?

48 / 50

Electrical conductivities of semi-conductors are of the order of _______ ohm/cm ?

49 / 50

Electrometallurgical methods of metal extraction is normally used for those metals_____?

50 / 50

Diffusion co-efficient of a metal in a solid solution depends upon its ?

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