Machinist Grinder 3rd Sem Module 7&8 Grd fluids n holding device

Which fluid has the excellent heat absorption property?

• Water
• Oil
• Oil and Water emulsions
• Plain soap solution

Which grinding fluid is having the bad effect on eye and skin irritation?

• Plain soap solution
• Oil and Water emulsions
• Paste emulsion
• Soda water

Which grinding fluid causes premature loosening of the abrasive in grinding wheel?

• Plain soap solution
• Oil and Water emulsions
• Paste emulsion
• Soda water

Which grinding fluid strip the paint off from machine?

• Plain soap solution
• Oil and Water emulsions
• Paste emulsion
• Soda water

Which is the most suitable grinding fluid?

• Plain soap solution
• Oil and Water emulsions
• Paste emulsion
• Soda water

Which grinding fluid is used in gear and thread grinding machines?

• Soluble oil
• Plain soap emulsion
• Soda water
• Straight mineral oil

Which non welding substances are mixed with grinding fluid?

• Sulphur and Chlorine
• Magnesium and Chlorine
• Potassium and Chlorine
• Nickel and Chlorine

Which grinding fluid is fat free oil, wheel cuts freely and does not clog or glaze?

• Soda water
• Plain soap emulsion
• Oil and Water emulsions
• Straight mineral oil

How much volume of grinding fluid is needed for 14 inch diameter grinding wheel per minutes in external grinding?

• Five gallons of the liquid per inch of wheel face
• Ten gallons of the liquid per inch of wheel face
• Fifteen gallons of the liquid per inch of wheel face
• Twenty gallons of the liquid per inch of wheel face

Which grinding fluid is useful for grinding in aluminium?

• Low viscosity oil
• Medium viscosity oil
• High viscosity oil
• Very high viscosity oil