Q.1
A balanced draught boiler furnace employs __________ draught fan.
Q.2
Maxwell's thermodynamic relations applies to the
Q.3
A dummy activity is used in PERT network to describe the
Q.4
__________ method of depreciation calculation ensures that the interest is charged on the cost of machine asset every year on the book value, but the rate of depreciation remains constant every year.
Q.5
Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about __________ percent.
Q.6
Joule-Thomson co-efficient is the ratio of
Q.7
The normal stress is the same in all directions at a point in a fluid, only when the fluid
Q.8
Consider an ideal solution of components A and B. The entropy of mixing per mole of an alloy containing 50 wt% B is
Q.9
__________ of test specimens is not involved in any hardness testing method.
Q.10
In spite of large heat transfer co-efficients in boiling liquids, fins are used advantageously, where the entire surface is exposed to __________ boiling.
Q.11
Maximum change in the hardness of mar tensite occurs in the carbon content range of __________ percent in steel.
Q.12
Eutectoid composition of carbon steel at room temperature is
Q.13
Percentage of argon (by volume) in dry atmospheric air is about
Q.14
Iron has got __________ isotopes.
Q.15
Which of the following is an undesirable property of slag produced during the pyrometallurgical method of metal extraction from its ore?
Q.16
Which of the following is a neutral flux used in the pyrometallurgy of metal extraction?
Q.17
The materials which fracture even at small strains are termed as brittle, while those materials which exhibit an appreciable deformation before failure are termed as
Q.18
The underground well of a biogas plant is called the
Q.19
Heat required to raise the temperature of a body by 1 °C is called its
Q.20
Sudden fall of atmospheric pressure by a large amount is an indication of the
Q.21
Addition of __________ to steel does not help in improving its machinability.
Q.22
Air/fuel ratio on molar (volume) basis for combustion of methane with theoretical quantity of air with be
Q.23
Fog is an example of colloidal system of
Q.24
Energy to be supplied to the radioactive nucleus for the emission of a neutron is __________ MeV.
Q.25
The most abundant metal present in the earth's crust is;
Q.26
The rolling process can not be used to produce
Q.27
An alloy of Fe - 0.4 % C is
Q.28
An ideal fluid is
Q.29
Good design of the casing of a centrifugal pump aims at minimising the
Q.30
The maximum axial compression stress during cold upsetting of a cylinderical rod of radius (r) occurs at
Q.31
The highest stress that a material can withstand for a specified length of time without excessive deformation is called the __________ strength.
Q.32
Common salt is produced from sea water in India generally by the __________ method.
Q.33
Even though heat transfer co-efficients in boiling liquids is large, use of fins is advantageous, when the entire surface is exposed to __________ boiling.
Q.34
A cylinderical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is
Q.35
Lime contains about 90% CaO. Percentage CaO present in limestone is about
Q.36
Multistage compression of air as compared to single stage compression offers the advantage of
Q.37
Water hammer in pipelines results, when the flowing fluid
Q.38
Wave length of X-rays is about 1 angstron, however it can not pass through a sheet of
Q.39
Nuclear fission of one atom of uranium⁻²35 produces the energy equivalent to about __________ MeV.
Q.40
Fahrenheit and Centigrade scales have the same readings at
Q.41
A solution which resists change in its pH value on addition of acid/alkali is called the __________ solution.
Q.42
Work study deals with the __________ study.
Q.43
Gage pressure within a spherical droplet of a fluid is 'p'. What will be gage pressure within a bubble of the same size & of the same fluid ?
Q.44
__________ is the most important element, which controls the physical properties of steel.
Q.45
Friction factor for fluid flow in pipe does not depend upon the
Q.46
Limestone addition in the blast furnace is done to flux __________ present in the raw materials.
Q.47
The most detrimental impurity in high pressure boiler feed water is
Q.48
Which of the following is capable of acting both as an acid flux as well as a basic flux in the metal extraction from its ore?
Q.49
Larger length & diameter water pipes are made by
Q.50
Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the
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