Related Questions
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4
Constituents of stellite are
B. Cobalt, chromium & tungsten
C. Zinc, aluminium & nickel
D. Nickel, cobalt & vanadium
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4
__________ stress cannot be sustained by a fluid in equilibrium.
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4
Which of the following is not categorised as the ore agglomeration process?
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4
Faraday's law of electrolysis is related to the
B. Atomic number of the cation
C. Equivalent mass of the electrolyte
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4
Percentage of differential pressure lost in a Venturimeter with a tapering of 15° may be about
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4
In chemical dehumidification process
A. Wet bulb temperature increases
B. Dry bulb temperature remains constant
C. Dew point temperature increases
D. Dry bulb temperature increases
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4
The burnout heat flux in the nucleate boiling regime is not a function of the
C. Temperature difference
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4
What is the range of tempering temperature (°C) for most of the materials?
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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
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4
Which of the following is the most suitable material of construction for the condenser tubes, where the cooling medium is brine (salty water)?
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The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer registers a higher temperature than a wet bulb thermometer except at __________ percent relative humidity.
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__________ of test specimens is not involved in any hardness testing method.
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Hardening of steel is not possible, unless it is heated __________ critical point.
C. Between the first & second
D. Between the second & third
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4
All the atoms of the world comprise of electrons, proton & neutron except that of __________ atom in which neutron is absent.
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4
Theoretical volume of oxygen required for complete combustion of 1Nm3 of acetylene, in oxyacetylene welding is __________ Nm3.
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4
Work done by a/an __________ process is determined by ∫p. dv
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4
Identify the correct statement.
A. Sphlerite is zinc oxide
B. The first law of the thermodynamics is stated as δE = δQ - δW
C. Lead can be produced in a blast furnace
D. T. ferrooxidans is a fungus that can be used for leaching chalcopyrite
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4
Which of the following mainly decides the current to be employed is arc welding?
C. Voltage across the arc
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4
Enzymes belong to the category of
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4
Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare pipe surface located in a room without fans?
A. Emissivity of pipe surface
B. Diameter & length of the pipe
C. Temperature of hot pipe surface & that of air in the room
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4
Triple point of water is
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An example of unsteady non uniform flow is the flow of liquid under pressure through a
A. Tapering pipe at constant flow rate
B. Tapering pipe at either decreasing or increasing flow rate
C. Long pipeline of constant diameter
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4
Increasing sulphur content in pig iron tends to make it
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4
Fibre glass is a composite material of
A. Glass fibre in a polymer matrix
B. Glass fibre in a metallic matrix
C. Polymer fibre in a glassy matrix
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4
Heat transfer by __________ is almost absent in case of fluidised bed drying operation.
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4
As the fluid flow rate increases, the float of the Rotameter
B. Rotates at higher speed
C. Rotates at lower speed
D. Drops down in the tube
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4
The most suitable material of construction for a sewer to carry sewage under high pressure is
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4
Pick out the wrong statement.
A. Geothermal energy is a non-conventional source of energy
B. Mass is converted into energy in both nuclear fission & fusion reaction
C. Inhalation of mercury vapour is not harmful for human beings
D. Inhalation of arsenic causes cancer
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4
Propulsion of rocket follows from the
A. Newton's second law of motion
B. Newton's third law of motion
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The difference between gross & net calorific values of fuel is due to the
A. Sensible heat carried away by the flue gases
B. Heat carried away by the steam from the moisture content of the fuel
C. Heat lost by radiation
D. Heat carried away by steam from the combustion of hydrogen in the fuel