CRST Installation & Maintenance Practices

Question 1

What is the first step in installing a refrigeration system?

Accepted Answer

Plan layout and check compatibility

Answer

Start wiring

Answer

Install compressor first

Answer

Ignore specifications

Question 2

Why is proper sealing important during installation?

Accepted Answer

Prevent leaks

Answer

No effect

Answer

Increase leaks

Answer

Reduce pressure

Question 3

How often should maintenance be performed on refrigeration systems?

Accepted Answer

Regularly as per guidelines

Answer

Never

Answer

Only when broken

Answer

Every 5 years

Question 4

What is a key part of maintenance?

Accepted Answer

Check levels and pressures

Answer

Ignore refrigerant

Answer

Only clean filters

Answer

Replace parts unnecessarily

Question 5

Why is proper electrical connection critical?

Accepted Answer

Ensure safe operation

Answer

No effect

Answer

Increase faults

Answer

Ignore wiring

Question 6

How can technicians prevent contamination during maintenance?

Accepted Answer

Use clean tools and procedures

Answer

Ignore cleanliness

Answer

Mix fluids

Answer

Use dirty equipment

Question 7

What should be documented after maintenance?

Accepted Answer

Work details and performance

Answer

No documentation

Answer

Only date

Answer

Ignore records

Question 8

Why is calibration important in maintenance?

Accepted Answer

Maintain specifications

Answer

No impact

Answer

Ignore calibration

Answer

Increase errors

Question 9

When should maintenance be performed?

Accepted Answer

Preventive timing

Answer

Only after failure

Answer

Ignore schedule

Answer

Random timing