Maintenance and inspections

Question 1

HYDRAULIC OIL IDENTIFICATION

3

Answer 1

NATO Code number

British Joint service Designation

Propriety name / MIL Spec No.

Question 2

HYDRAULIC CONTAMINATION SOURCES

Answer 2

Poor maintenance
component breate down
Jeal
break
down
Water/vapour Ingress

Question 3

HYDRAULIC COMPONENT SEALING DEVICES

Answer 3

Seals
lacking rings
wiper rings
Back-uprin

Question 4

If you remove the filler cap to the reservoir should you relive all hydraulic pressure or only pressure applicable to the system

Answer 4

only pressure applicable to the system

Question 5

Do all fluids readily transmit pressure

Answer 5

Yes

Question 6

What is a safety device between the driving unit and hydraulic pump shaft

Answer 6

Drive coupling shear

Question 7

A hydraulic motor converts fluid pressure to rotary or linear motion?

Answer 7

Rotary

Question 8

An actuator is rotary or linear motion?

Answer 8

Linear

Question 9

How are Hydraulic lines identified

Answer 9

Blue, yellow, black circle

The words “Hydraulic”

Question 10

What does a variable displacement pump contain to maintain pressure

Answer 10

A built in means of pressure regulation

Question 11

What are the 3 requirements of a hydraulic system

Answer 11

Minimum maintenance, light weight, simple to use

Question 12

What is the purpose of restrictors

Answer 12

Restrict its control the rate of hydraulic operated systems