Aux 1 Unit 8 Q5

1 / 10

What should be done with used hydraulic fluid during maintenance?

A) Dispose of it in a regular trash bin.

B) Store it in open containers until it evaporates.

D) Pour it down the nearest drain.

C) Dispose of it according to local environmental regulations.

2 / 10

What should be done to identify potential hazards in the hydraulic system before maintenance?

C) Increase the pressure to check for leaks.

B) Conduct a thorough inspection and review the system’s maintenance records.

D) Bypass the safety valves.

A) Assume the system is safe without any inspection.

3 / 10

What is the purpose of locking out and tagging out (LOTO) the hydraulic system before maintenance?

A) To increase the system’s operational efficiency.

D) To make the system easier to repair.

B) To prevent unauthorized access or accidental activation of the system during maintenance.

C) To ensure the system runs continuously.

4 / 10

What is the first safety precaution that should be taken before starting any maintenance or repair on a hydraulic system?

C) Wear hearing protection only.

A) Increase the system pressure to ensure components are tightly secured.

B) Ensure the system is depressurized to avoid accidental release of high-pressure fluid.

D) Open all valves to allow fluid to flow freely.

5 / 10

What should be done if a hydraulic component is found to be under pressure during maintenance?

A) Proceed with the repair immediately.

D) Ignore the pressure and continue working.

C) Use a hammer to release the pressure quickly.

B) Release the pressure according to the manufacturer’s guidelines before continuing.

6 / 10

Which personal protective equipment (PPE) is essential when working on hydraulic systems?

A) Only a high-visibility vest

B) Safety goggles, gloves, and protective clothing

D) No PPE is required when working on hydraulic systems

C) Open-toed shoes and a hat

7 / 10

What is the recommended action if a hydraulic system leak is suspected during operation?

D) Ignore the leak and continue operation.

C) Increase system pressure to force out the leak.

A) Inspect the leak with your hand to confirm its location.

B) Use a piece of cardboard or wood to detect the leak’s location safely.

8 / 10

Why should all hydraulic hoses and connections be inspected before starting maintenance?

A) To ensure they are properly lubricated.

C) To check if they are the correct color.

B) To verify that they are securely connected and free of leaks or damage.

D) To see if they make noise when touched.

9 / 10

Why should hydraulic fluid be handled carefully during maintenance?

C) Because hydraulic fluid can be hot, under high pressure, and may contain harmful chemicals.

A) Because it has a pleasant smell.

D) Because hydraulic fluid is a solid at room temperature.

B) Because hydraulic fluid is non-toxic and does not require caution.

10 / 10

Why is it important to isolate the hydraulic power source before beginning repairs or maintenance?

B) To ensure the hydraulic system cannot be accidentally activated during maintenance.

C) To increase the system’s pressure.

A) To reduce noise levels in the work area.

D) To allow other machinery to continue operating.

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