CMI Cleaning Techniques & Best Practices 4

Question 1

What pH level characterizes a neutral cleaner?

Accepted Answer

pH 7

Answer

Neutral cleaners have a pH of 7, making them safe for daily use on most surfaces without the risk of damage from acidic or alkaline extremes.

Question 2

Which technique should be used when cleaning stairs in a multi-story building?

Accepted Answer

Start at the top and work downward

Answer

Cleaning stairs from the top down ensures that debris dislodged from upper steps falls onto uncleaned steps below, preventing re-soiling.

Question 3

What is the function of a burnisher in hard floor care?

Accepted Answer

To high-speed buff the floor surface to a high-gloss shine

Answer

A burnisher operates at high RPM to generate heat and friction that hardens and polishes the top layer of floor finish to a high-gloss shine.

Question 4

When using a backpack vacuum, what is the correct ergonomic practice to reduce injury risk?

Accepted Answer

Adjust the harness so the weight sits on the hips, not the shoulders

Answer

Properly fitted backpack vacuum harnesses transfer the weight load to the hips, which can bear more weight and reduce back and shoulder strain.

Question 5

What is the purpose of a pre-inspection before beginning a cleaning task?

Accepted Answer

To identify hazards, special soil conditions, and set priorities before starting

Answer

Pre-inspection allows the cleaning professional to identify hazards, unusual soiling, damaged areas, and high-priority zones before starting work.

(CMI) Cleaning Management Institute Certification Practice Test