What are the three important technical dimensions of lubrication oil analysis

Question # 00631780 Posted By: katetutor Updated on: 12/27/2017 11:08 AM Due on: 12/27/2017
Subject Engineering Topic General Engineering Tutorials:
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TQM 5

1. What are the three important technical dimensions of lubrication oil analysis?

2. Define Total Acid Number (TAN) and Total Base Number (TBN) of lubrication oil and state their importance in machinery lubrication (this may require internet search).

3. An ultrasonic beam travels through an 8-inch thick carbon steel plate and strikes a body of water. The following data for carbon steel and water are given.

Density of carbon steel = 7.85 gm/cm3

Density of water = 1 gm/cm3

Longitudinal velocity of sound in carbon steel = 0.594 cm/µ sec

Longitudinal velocity of sound in water = 0.149 cm/µ sec

(a) Calculate the acoustic impedances of carbon steel and water. Indicate units.

(b) Calculate the percent of ultrasonic wave energy reflected.

(c) Calculate the percent of ultrasonic wave energy transmitted.

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