CRST Troubleshooting & Repair Techniques

Question 1

What is the first step in troubleshooting a refrigeration system?

Accepted Answer

Identify symptoms

Answer

Replace parts immediately

Answer

Ignore the problem

Answer

Increase refrigerant charge

Question 2

How can a technician detect refrigerant leaks?

Accepted Answer

Leak detectors and pressure checks

Answer

Visual inspection only

Answer

Ignore leaks

Answer

Add refrigerant without checking

Question 3

Why is it important to check electrical connections during repair?

Accepted Answer

Prevent failure and hazards

Answer

No impact

Answer

Ignore connections

Answer

Increase power usage

Question 4

What role does proper diagnosis play in repairs?

Accepted Answer

Correctly identify issues

Answer

Replace multiple parts

Answer

Ignore root cause

Answer

Random repairs

Question 5

How should technicians handle refrigerant recovery?

Accepted Answer

Recover safely

Answer

Release to atmosphere

Answer

Ignore regulations

Answer

Dump in drains

Question 6

Why is documentation important in troubleshooting?

Accepted Answer

Track repairs and issues

Answer

No use

Answer

Ignore paperwork

Answer

Delay updates

Question 7

What safety precautions should be taken during repairs?

Accepted Answer

Use PPE and lockout/tagout

Answer

Ignore safety

Answer

Rush repairs

Answer

Bypass safety

Question 8

How does root cause analysis improve repair effectiveness?

Accepted Answer

Identify underlying problems

Answer

Ignore root causes

Answer

Fix symptoms only

Answer

Repeat repairs

Question 9

When should system testing be performed after repair?

Accepted Answer

Immediately after repair

Answer

Never

Answer

After several weeks

Answer

Only during maintenance