Maintenance MCQ - Turner (Set-1) with Answers

21) Which one of the following is NOT the property of a good lubricant ?

Answer is:

Becomes thicker after prolonged use

22) A concrete mixture ratio is given as 1 : 2 : 4. Which one of the following indicates these numbers ?

Answer is:

One part cement, two parts sand and four parts stone.

23) The most important quality of any lubricant is

Answer is:

Viscosity

Explanation:

Viscosity is also known as absolute viscosity or dynamic viscosity. It is defined as the property of a liquid which offers resistance to the movement of one layer of liquid over another adjacent layer of liquid. The viscosity of a liquid is due to cohesion and interaction between particles.

24) Which one of the following is the best way for preparing an emulsion ?

Answer is:

Add soluble oil to the water

Explanation:

Adding soluble oil to the water is one of the best way for preparing an emulsion.

25) Which one of the following is common method for applying cutting fluid on the tool point ?

Answer is:

21) Which one of the following is NOT the property of a good lubricant ?

Becomes thicker after prolonged use

22) A concrete mixture ratio is given as 1 : 2 : 4. Which one of the following indicates these numbers ?

One part cement, two parts sand and four parts stone.

23) The most important quality of any lubricant is

Viscosity

24) Which one of the following is the best way for preparing an emulsion ?

Add soluble oil to the water

25) Which one of the following is common method for applying cutting fluid on the tool point ?

With high pressure jet