Description : What is the thermal properties of matter ?
Last Answer : The special properties of matter are used to measure temperature. The religion of matter which changes regularly due to the difference in temperature and which can be easily and precisely determined by ... , the resistance of a conductor varies with temperature , so resistance is a thermal property.
Last Answer : Resistance is the thermal nature of matter.
Description : Psychrometry deals with the properties of gas-vapor mixture. Humidity can be determined by the measurement of the __________ of a fibre. (A) Electrical resistance (B) Thermal conductivity (C) Strength (D) None of these
Last Answer : (A) Electrical resistance
Description : Pick out the wrong statement pertaining to the properties of glasses. Glasses generally have (A) High electrical insulation properties (B) Sharp melting points (C) Low co-efficient of thermal expansion (D) Compressive strength much greater than their tensile strengths
Last Answer : (B) Sharp melting points
Description : For organic compounds, group contribution method can be used for the estimation of (A) Critical properties (B) Specific gravity (C) Specific volume (D) Thermal conductivity
Last Answer : (A) Critical properties
Description : Isotropic materials have the same __________ in all directions. (A) Induced stresses (B) Density (C) Elastic properties (D) Thermal properties
Last Answer : C) Elastic properties
Description : Which of the following properties is not necessarily desirable in the material for transformer core? A. Mechanical strength B. Low hysteresis loss C. High thermal conductivity D. High permeability
Last Answer : C) high thermal conductivity
Description : Describe different thermal properties of an engineering material.
Last Answer : Thermal properties of Engg. Materials: 1.Temperature: Temperature is the degree to measure hotness and coldness. Temperature is a physical quantity expressing hot and cold. 2.Thermal conductivity: ... the amount of heat needed to raise the temperature of one kilogram of mass by 1 kelvin.
Description : Name two thermal properties of engineering materials.
Last Answer : Thermal properties of engineering materials: 1. Melting point 2. Specific heat 3. Heat capacity (specific heat capacity) 4. Thermal expansion 5. Thermal conductivity 6. Thermal stability 7. Thermal shock resistance 8. Heat resistance/thermal resistance
Description : State various thermal insulating materials. State any two properties of insulating material
Last Answer : Thermal insulating materials: 1) Asbestos 2) Aluminum Foil 3) Thermocol 4) Saw dust 5) Cork board slabs 6) Foam glass 7) Rock Wool 8) Glass Wool 9) ... . h) Presence of Moisture: with the increase in moisture content, the coefficient of thermal conductivity rises greatly
Description : State the Properties of thermal insulating materials.
Last Answer : Properties of thermal insulating materials: 1) Thermal insulating should be bio resistant and dry. 2) Thermal resistant should be chemically resistant and fire proof. 3) Thermal resisting ... in the moisture content in the material, the coefficient of thermal conductivity rises greatly.
Description : Refractory metals are known for which of the following properties: w) lack of chemical reactivity x) low density y) high melting point z) high thermal conductivity
Last Answer : ANSWER: Y -- HIGH MELTING POINT
Description : The area of thermodynamics concerned with the measuring of thermal properties is called what?
Last Answer : ANSWER: CALORIMETRY
Description : State any two electrical, mechanical and thermal properties of insulating materials.
Last Answer : i) Electrical Properties of insulating material:- 1. It should have high resistance. 2. It should have high breakdown voltage. 3. It should have high dielectric strength. 4. It should have low ... . 4. Ii should have thermal Stability. 5. Co-efficient of thermal expansion should be low.