PREVENTIVE MAINTENANCE - Practice Mode

1) Which coolant oil is emulsified with water?

Soluble oil Kerosene Mineral oil Lard oil

Correct Answer: Soluble oil

2) What is the colour of soluble oil mixed with water?

White Blue Yellow Violet

Correct Answer: White

3) Which cutting fluid is used for threading in general purpose steel?

Soluble oil Lard oil Kerosene Dry

Correct Answer: Lard oil

4) Which cutting fluid is used for heavy duty machine with less cutting speed?

Synthetic fluid Straight mineral oil Fatty oil Soluble oil

Correct Answer: Fatty oil

5) Which type of lock washer used with flat or oval type head screw?

External type Internal type Counter sunk type Internal and external type

Correct Answer: Counter sunk type

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