If steel is heated to a temperature well below red heat and is then cooled slowly, the process is called_________?

Related Mcqs:

1. Water is heated in a kettlE. The inside water is heated by convection. A person sitting near the fire receives heat by ________?

   A. Conduction
   B. Convection
   C. Radiation
   D. Reflection
   E. None of these

2. The atmosphere near the earth’s surface is “heated from below.” Which of the following does not significantly contribute to this heating _____________________?

   A. Conduction of heat upward from a hot surface
   B. Convection from a hot surface
   C. Absorption of infrared energy that has been radiated from the surface
   D. Heat energy from the earth’s interior

   Submitted by: Mansoor Ul Haque

3. Lead ball falls through water more slowly than through air because __________?

   A. The value of ‘g’ is less in water
   B. Density of air is less than that of water
   C. Of the viscous force in water
   D. Of The surface tension of water

4. The gradual physiological adjustment to slowly changing new environmental conditions is known as _____________________?

   A. Selection
   B. Introduction
   C. Acclimatization
   D. Quarantine

   Submitted by: Mansoor Ul Haque

5. As a result of which treaty, ozone hole in Antarctica is slowly healing?

   A. Koyoto protocol
   B. Ottawa treaty
   C. Montreal protocol
   D. Oslo Accord

   Submitted by: Palestine

6. The Planet which revolves slowly around the Sun is__________?

   A. Mercury
   B. Mars
   C. Earth
   D. Neptune

   Submitted by: Noor Ahmed

7. The halogen which reacts very slowly with halogen is________________?

   A. Fluorine
   B. Chlorine
   C. Bromine
   D. Iodine

8. The process of splitting water molecules in the presence of light energy is called_________?

   A. Electrolysis
   B. Photolysis
   C. Radiolysis
   D. Thermolysis

   Submitted by: Malik Asghar Hussain

9. Which metal is added to steel to make it stainless steel?

   A. Chromium
   B. Aluminium
   C. Carbon
   D. Copper

   Submitted by: ABDUL HAYEE

10. The snow on the mountains does NOT melt all at once when it is heated by the sun because:

    A. it becomes very hard
    B. it reflects most of the heat from the sun
    C. it has a low specific heat capacity
    D. it has a high latent heat of fusion

    Submitted by: Abid Hussain