Chemical Engineering Basics Quiz 12
1 / 50
The process of removal of scale formed during hot rolling of steel is termed as__________?
2 / 50
The refractory lining of the bottom in a basic electric arc furnace is made of_____?
3 / 50
The minimum and the maximum number of members required to form a Private Limited Joint Stock Company are respectively ___________?
4 / 50
The two elements required to form substitutional solid solution should not have_____?
5 / 50
The most important consideration in value engineering is the_______?
6 / 50
The transition temperature at which all the ferromagnetic materials become paramagnetic materials is termed as the ?Curie temperature?. Its value for cobalt is _______ ?C?
7 / 50
The product (s) of roasting of a sulphide ore is (are) ?
8 / 50
The rolling process cannot be used to produce________?
9 / 50
The property of material, by which a given amount of energy is absorbed by it without plastic deformation, is called the__________?
10 / 50
The product out from a cupola is called ______?
11 / 50
The thermodynamic law, PVy = constant, is not followed by the ___________?
12 / 50
The thickness of oxide film is y at time t. If K1, K2 and K3 are the temperature dependent constants, the parabolic law of oxidation is given by ___________?
13 / 50
The most detrimental impurity in high pressure boiler feed water is _____?
14 / 50
The normal stress is the same in all directions at a point in a fluid, only when the fluid___________?
15 / 50
The same volume of all gases is representative of their_______?
16 / 50
The passage between the nozzle and the _________ is called ?sprue? in case of injection moulding?
17 / 50
The product of a commercial direct reduction process is_____?
18 / 50
The order of a chemical reaction______?
19 / 50
The most abundant metal present in the earth?s crust is___________?
20 / 50
The pressure drop per unit length for laminar flow of fluid through a long pipe is proportional to (where, A = cross-sectional area of the pipe & D = Diameter of the pipe) ?
21 / 50
The specific gravity of coal depends mainly on its ___________ content ?
22 / 50
The taper provided on pattern for its easy & clean withdrawal from the mould is termed as the ________ allowance ?
23 / 50
The mechanism involved in the removal of metal in drilling operation is by__________?
24 / 50
The stress at which extension of the material takes place more rapidly as compared to the increase in load is termed as the ______ point of the material?
25 / 50
The most suitable material for die casting is ___________?
26 / 50
The temperature at which ferromagnetic material can no longer be magnetized by the outside forces, is termed as the______?
27 / 50
The most suitable material of construction for a sewer to carry sewage under high pressure is__________?
28 / 50
The ratio of the shear stress to the principal stress on a principal plane is________?
29 / 50
The most important function of a washer is to provide bearing area and washers are normally specified by their hole diameters. The diameter of washer as compared to the nut is___________?
30 / 50
The most prominent single cause of corrosion in boiler-tubes, drums, economisers and steam superheaters in a thermal power plant boiler is the________?
31 / 50
The trace metal present in insulin is______?
32 / 50
The refractory brick which has good thermal shock resistance at high temperature but cracks on cooling below 400?C is___________?
33 / 50
The substance used as a smoke screen in warfare is_____?
34 / 50
The ratio of thermal & electrical conductivity is same for all the metals at the same temperature; and at around room temperature, this ratio is proportional to(where, T = absolute temperature, ?K) ?
35 / 50
The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of a proton to that of an electron ?
36 / 50
The starting of a car takes time in winter, because the___________?
37 / 50
The noble metals_________?
38 / 50
The type of pump used for lifting large quantity of sewage is a __________ pump ?
39 / 50
The property of material, by which a given amount of energy is absorbed by it, without plastic deformation, is called___________?
40 / 50
The mechanism which changes the value of manipulated variable in response to the output signal from the control unit is called the_____?
41 / 50
The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be________?
42 / 50
The most important requirement for aluminium industry is the availability of cheap ________?
43 / 50
The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used. For general purpose cutter grinding ________ grinding wheel is normally used ?
44 / 50
The minimum temperature to which the water can be cooled in a cooling tower is the _______ temperature of air?
45 / 50
The surface tension of a liquid, at critical temperature is______?
46 / 50
The refrigerant freon-12 is chemically_________?
47 / 50
The swift cup test evaluates the following property of a sheet metal ?
48 / 50
The phenomenon occurring during explosion of a hydrogen bomb is_____?
49 / 50
The minimum carbon content in steel should be ______ percent for it to respond to a hardening treatment ?
50 / 50
The pressure outside a bubble/droplet of liquid is _________ the internal pressure?
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