Question 1: Word Tribology is based on the Greek word, which means: Science of ?

A. Rubbing

B. sliding.

C. Pushing.

D. Pulling.

(A)
(B)
(C)
(D)

Question 2 : Tribology is generally referred as made of three words. Which of following is INCORRECT ?

A. Vibration

B. Lubrication

C. Friction

D. Wear

(A)
(B)
(C)
(D)