Euler number is defined as the ratio of inertia force to __________ force. September 6, 2025 by Admin A. Pressure B. Elastic C. Gravity D. Viscous ✅ The correct answer is option A.
Hoope’s cell is predominantly used for the electrolytic refining of September 6, 2025 by Admin A. Zinc B. Copper C. Aluminium D. Tin ✅ The correct answer is option C.
The ‘laughing gas’ is September 6, 2025 by Admin A. Nitrous oxide B. Nitric oxide C. Nitrogen trioxide D. Nitrogen pentoxide ✅ The correct answer is option A.
Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of September 6, 2025 by Admin A. 90% tungsten carbide and 10% cobalt B. 70% aluminium oxide & 30% silica C. 30% nickel, 15% chromium & 55% tungsten D. 65% tungsten & 35% zirconium ✅ The correct answer is option A.
A solar cell converts the sunlight directly into __________ energy. September 6, 2025 by Admin A. Thermal B. Electrical C. Mechanical D. Chemical ✅ The correct answer is option B.
Catalyst used in the catalytic converter employed in automobiles to convert CO into CO and for complete oxidation of un-burnt hydrocarbons is September 6, 2025 by Admin A. Nickel B. Cobalt C. Vanadium D. Platinum ✅ The correct answer is option D.
Which of the following is an unconventional source of energy ? September 6, 2025 by Admin A. Thermal power B. Hydroelectric power C. Nuclear-fusion power D. Solar power ✅ The correct answer is option D.
Which of the following is used to produce draught in the locomotive boilers ? September 6, 2025 by Admin A. Chimney B. Induced draught fan C. Forced draught fan D. Steam jet arrangement ✅ The correct answer is option D.
For grinding of softer materials, the grinding wheel should have __________ grain size. September 6, 2025 by Admin A. Finer B. Coarser C. Medium D. Any type of ✅ The correct answer is option B.
Plastics as a material of construction suffer from the drawback of low September 6, 2025 by Admin A. Machinability B. Density C. Strength D. Plastic deformation ✅ The correct answer is option C.