With increase in __________ Knocking tendency in a spark ignition petrol engine decreases.

A. Supercharging

B. Wall temperature

C. Compression ratio

D. Engine speed

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. With increase in steam pressure, its specific volume decreases
  2. Which of the following varies as the square root of oil pressure during atomisation of fuel oil through…
  3. Minimum thermal efficiency of a steam boiler may be around __________ percent
  4. The thickness of oxide film is y at time t. If are the temperature dependent constants, the parabolic…
  5. Which of the following is not a dielectric material?
  6. Shampoos are commercially not available in the form of
  7. Temperature attained in soldering of metals is about __________ °C.
  8. Thermodynamic cycle involved in the working of a thermal power plant is the __________ cycle.
  9. An ideal material for making cooking vessels should have
  10. The difference in one unit of Rockwell hardness number corresponds to a difference in the depth of indentation…
  11. Though tin occurs lower than iron in the electrochemical series, yet it is coated on steel for corrosion…
  12. Upto the critical radius of insulation, added insulation, will
  13. For a thermodynamic system undergoing a process, which of the following pairs best expresses the relationship…
  14. Probability of cavitation occuring becomes very high, when the local __________ resulting in water bubbles…
  15. What is the range of tempering temperature (°C) for most of the materials?
  16. Young's modulus of a material is the measure of its
  17. Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air…
  18. Silicon percentage in silicon steel used for electrical equipments is about
  19. With increase in temperature, the electrical conductivity of semiconductors
  20. Metal shots used in shot blasting are made of
  21. What is the critical radius of insulation (cms) for a metallic cylinder, if the convective heat transfer…
  22. __________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C.
  23. Preheating before welding is done to
  24. Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint.
  25. The expected efficiency of a single riveted lap joint is of the order of 50%. If the thickness of the…
  26. The difference between gross & net calorific values of fuel is due to the
  27. Which of the following materials does not form adherent oxide film on surface?
  28. The property of material, by which a given amount of energy is absorbed by it without plastic deformation,…
  29. All the atoms of the world comprise of electrons, proton & neutron except that of __________ atom in…
  30. Speisses is a mixture of the following: