High relative humidity decreases the evaporative process and as the temperature is increased, the relative humidity decreases. The comfort range for human body is the ambient temperature of 22 to 27°C with relative humidity ranging from __________ percent. September 6, 2025 by Admin A. 5 to 10 B. 15 to 25 C. 45 to 50 D. 75 to 80 ✅ The correct answer is option C.
Which of the following does not discharge the dust collected as a dry solid? September 6, 2025 by Admin A. Electrostatic precipitator B. Wet scrubber C. Bag filter D. Gravity settling chamber ✅ The correct answer is option B.
Sheardising process is used for September 6, 2025 by Admin A. Surface coating B. Heat treatment of high speed steel C. Cold working on metals D. None of these ✅ The correct answer is option A.
The maximum value, which the residual stress in a material can reach is the __________ of the material. September 6, 2025 by Admin A. Elastic limit B. Plastic limit C. Yield stress D. Breaking stress ✅ The correct answer is option A.
Out of the following, the __________ pipe has the least corrosion resistance. September 6, 2025 by Admin A. Mild steel B. Copper C. Cast iron D. Wrought iron ✅ The correct answer is option D.
Stress and strain are related by __________ elastic constants for a linearly elastic, homogeneous & isotropic material. September 6, 2025 by Admin A. One B. Two C. Three D. Four ✅ The correct answer is option B.
The difference in the properties of a substance in three states of matter depends upon the September 6, 2025 by Admin A. Binding energy of atoms B. Difference in molecular shape C. Difference in intermolecular forces D. None of these ✅ The correct answer is option C.
Density in the solid state is slightly less than that in its liquid state, in case of September 6, 2025 by Admin A. Carbon dioxide B. Water C. Mercury D. None of these ✅ The correct answer is option B.
Pig iron is September 6, 2025 by Admin A. Made from cast iron B. Made from wrought iron C. The one, which comes out of the blast furnace D. Free from impurities ✅ The correct answer is option C.
Broaching tools are usually made of September 6, 2025 by Admin A. Cermets B. High speed steel C. Tungsten carbide D. Stellite ✅ The correct answer is option B.