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Consider the following statements about thermal conductivity: 1) Thermal conductivity decreases with increasing molecular weight 2) Thermal conductivity of non-metallic liquids generally decreases with increasing temperature 3) Thermal conductivity of gases and liquids is generally smaller than that of solids Which of the above statements are correct?
Which is true regarding lumped system analysis? (i) Conductive resistance = 0 (ii) Convective resistance = 0 (iii) Thermal conductivity = 0 (iv) Thermal conductivity = infinity Identify the correct statements
Thermal conductivity based continuous flue gas analyser makes use of varying thermal conductivity of the constituents of flue gases. Which of the following constituents of flue gases has the maximum thermal conductivity?
“What is the different between height and radius of solid cylinder?” Which of the following option is sufficient alone to find the answer? A) A solid cylinder is made by melting a solid sphere. The radius of cylinder is 3 times the radius of a circle whose area is 154 sq.m. Height of cylinder is equal to the height of cone whose volume is 2772 cubic meters. B) Area of a rectangle whose longer side is ¾ times the radius of a solid cylinder, is 168 sq.m and, Volume of solid cylinder is 2772 cubic meters and its height is 18 m. C) A metallic cone of radius 15m and height 35m is melted into the solid cylinder of radius equal to the radius of a circle whose area is equal to the area of rectangle whose sides are in the ratio 4 : 3 respectively. D) The curved surface area of the solid cylinder is 3 time the surface area of a sphere of radius 7m and height of cylinder is equal to the height of a metallic cone whose curved surface area is 308 sq.m. 
Which of the following statements is most relevant in the context of Job Analysis? Choose the correct answer from the code given below. (i) Job Analysis helps in identifying the right person for the right job. (ii) A person cannot judge the job from the point of view of its suitability. (iii) Job analysis helps in job satisfaction and job efficiency. (iv) Through Job Analysis an employer cannot evaluate the prospective employee to judge his fitness or otherwise for the job. (v) Job Analysis helps in planning appropriate training programs. (vi) Job Analysis defines client needs in specific terms. (vii) Job Analysis assists in knowing the personnel specifications for various jobs.
A cylinder of radius r and made of material of thermal conductivity k 1 is surrounded by a cylindrical shell of inner radius r and outer radius 2r. This outer shell is made of a material of thermal conductivity k 2. Net conductivity would be
Mc-Gehee and Thayer recommend which of the following three tier approach to determine the training needs?
1. Organisational Analysis
2. Operational/Task Analysis
3. Man Power Analysis
4. Assets Value Analysis
5. Inventory Analysis
6. Skill Analysis
Consider a given volume of liquid at a temperature T below Tm with a free energy G’. If some of the atoms of the liquid cluster together to form a small sphere of solid, the free energy of the system will change to G, given by________ (Assume V1 volume of the solid sphere, V2 volume of liquid, A is the solid/liquid interfacial area, γ solid/liquid interface free energy, G1 and G2 are the free energies per unit volume of solid and liquid respectively).
The variation of thermal conductivity of a metal with temperature is often correlated using an expression of the form K = K₀ + at. where, K is the thermal conductivity and T is the temperature (in °K). The units of 'a' in SI system will be
The variation of thermal conductivity of a metal with temperature is often correlated using an expression of the form K = K0 + at. where, K is the thermal conductivity and T is the temperature (in °K). The units of 'a' in SI system will be