Galvanic corrosion can not be prevented by
Carnot cycle is also termed as the constant __________ cycle in thermodynamics.
Which of the following fastening devices has a head at one end and a nut fitted to the other ?
Sudden fall of atmospheric pressure by a large amount is an indication of the
Consider the equilibrium A(g) + B(g) = AB(g). When the partial pressure of A is 10-2 atm, the partial pressure of B is 10-3 atm and the partial pressure of AB is 1 atm, the equilibrium constant 'K' is
Air-petrol ratio for maximum power generation in spark ignition engine is about
Identify the correct statement.
Dowtherm is a
Biological shield in a nuclear reactor is generally provided to protect against the
In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean temperature difference) for counter flow as compared to that for parallel flow is
Temper brittleness of a material can be fairly detected by the __________ test.
When the wavelength of incident X-rays increases, the angle of diffraction
Fire in fuel gas pipelines is extinguished most effectively by
Thermistors are used in __________ devices.
Which of the following varies as the square root of oil pressure during atomisation of fuel oil through a pressure jet burner ?
Normalising does not __________ of a metal.
Which of the following is the most suitable abrasive for grinding high tensile strength materials ?
Broaching tools are usually made of
Which of the following hardness tests does not measure the indentation hardness of metals and alloys ?
The ratio of the shear stress to the principal stress on a principal plane is
The following type of bonding is strongly directional in solids.
In troposphere (the weather domain), the temperature 't' at height 'h' above the sea level in metres is given by (where, temperature at sea level is 15°C and t is in °C.)
Which one of the following is incombustible ?
Fog is an example of colloidal system of
Chromium molybdenum steel can not be welded using __________ welding.
__________ circuit is most commonly used to measure strain with the help of a strain gauge.
A high pressure boiler generates steam at a pressure greater than __________ kg/cm2 .
Evaporative cooling process employs a combination of cooling and humidification in which the
In chemical dehumidification process
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.
Speisses is a mixture of the following:
Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines ?
__________ is a special constituent of chlorophyll without which photosynthesis is not possible.
Which of the following is not an explosive ?
Secondary hardening in steels arises out of the
Tin based white metals are used, where bearings are subjected to
Auto collimator is used to check
__________ is used as a material of construction for the blade of power saw.
During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to
Maxwell's thermodynamic relations applies to the
Drills are usually made of
Friction factor for fluid flow in pipe does not depend upon the
Tumbling is the process of improving the __________ of the materials/parts.
All of the following alloying elements of steel increases hardness but sacrifice ductility, except
The __________ of a double acting reciprocating pump as compared to the single acting pump will be almost double.
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