2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
California RDA written exam Questions &
100% Correct Answers- Latest Test | Graded
A+ | Passed
according to the CDC which infection control measure is considered the most critical for
reducing the transmission of microbes in the health care setting?
✓ -:- hand washing
in a dental setting the clinical supply refrigerator may be used for the preservation of
✓ -:- bonding materials
A used dental anesthetic needle is an example of
✓ -:- regulated waste
Employees must receive training regarding hazardous chemicals at which interval?
✓ -:- upon hire and whenever a new hazard is introduced
The OSHA Hazard Communication Standard is based on the premise that an employee has
the right to know about
✓ -:- chemicals in the office
1|Page | Grade A+| 2024/2025
,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
Which set of precautions is intended to prevent exposure to all body fluids?
✓ -:- Standard
The majority of the spray produced by dental hand pieces consists of
✓ -:- saliva
which of the following viral infections can be prevented through immunization?
✓ -:- Hepatitis B
According to the Occupational Safety and Health Administration (OSHAP), a bloodborne
pathogens training program should include a general explanation of
✓ -:- the modes of disease transmission
Routine hand washing removes
✓ -:- most of the transient microbes and some of the resident microbes
Which of the following greatly reduces or eliminates biofilm in the dental unit water
system?
✓ -:- properly using chemical treatments
2|Page | Grade A+| 2024/2025
,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
which of the following modes of disease transmission best describes a human bite?
✓ -:- parenteral
the primary reason a surgical face mask must be used during a dental procedure is to
✓ -:- protect the DHCP from exposure to spatter
Instrument cassettes should be wrapped
✓ -:- after cleaning and before sterilization
Used radiograph fixer solution is usually considered
✓ -:- hazardous waste
Which party is responsible for ensuring a Material Safety Data Sheet is available in the work
place for each hazardous material?
✓ -:- Employer
Which of the following statements most accurately defines engineering controls?
✓ -:- Materials and devices that prevent employees exposure to hazardous or
infectious substances
3|Page | Grade A+| 2024/2025
, 2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
When using the air water syringe during dental treatment which of the following personal
protective equipment are recommended by the CDC?
✓ -:- gloves, mask, gown, and eye protection
According to the Center for Disease Control and Prevention, patient-care items that
penetrate soft tissue are categorized as
✓ -:- critical
The purpose of a holding solution is to
✓ -:- prevent hardening of debris and body fluids on instruments
Which barrier should be removed before temporarily leaving a patient to retrieve supplies?
✓ -:- gloves
The majority of organisms that make up dental unit waterline biofilm consists of
✓ -:- water bacteria
Material Safety Data Sheet (MSDS) are required by OSHA'S
✓ -:- Hazardous Communication Standard
4|Page | Grade A+| 2024/2025
California RDA written exam Questions &
100% Correct Answers- Latest Test | Graded
A+ | Passed
according to the CDC which infection control measure is considered the most critical for
reducing the transmission of microbes in the health care setting?
✓ -:- hand washing
in a dental setting the clinical supply refrigerator may be used for the preservation of
✓ -:- bonding materials
A used dental anesthetic needle is an example of
✓ -:- regulated waste
Employees must receive training regarding hazardous chemicals at which interval?
✓ -:- upon hire and whenever a new hazard is introduced
The OSHA Hazard Communication Standard is based on the premise that an employee has
the right to know about
✓ -:- chemicals in the office
1|Page | Grade A+| 2024/2025
,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
Which set of precautions is intended to prevent exposure to all body fluids?
✓ -:- Standard
The majority of the spray produced by dental hand pieces consists of
✓ -:- saliva
which of the following viral infections can be prevented through immunization?
✓ -:- Hepatitis B
According to the Occupational Safety and Health Administration (OSHAP), a bloodborne
pathogens training program should include a general explanation of
✓ -:- the modes of disease transmission
Routine hand washing removes
✓ -:- most of the transient microbes and some of the resident microbes
Which of the following greatly reduces or eliminates biofilm in the dental unit water
system?
✓ -:- properly using chemical treatments
2|Page | Grade A+| 2024/2025
,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
which of the following modes of disease transmission best describes a human bite?
✓ -:- parenteral
the primary reason a surgical face mask must be used during a dental procedure is to
✓ -:- protect the DHCP from exposure to spatter
Instrument cassettes should be wrapped
✓ -:- after cleaning and before sterilization
Used radiograph fixer solution is usually considered
✓ -:- hazardous waste
Which party is responsible for ensuring a Material Safety Data Sheet is available in the work
place for each hazardous material?
✓ -:- Employer
Which of the following statements most accurately defines engineering controls?
✓ -:- Materials and devices that prevent employees exposure to hazardous or
infectious substances
3|Page | Grade A+| 2024/2025
, 2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
When using the air water syringe during dental treatment which of the following personal
protective equipment are recommended by the CDC?
✓ -:- gloves, mask, gown, and eye protection
According to the Center for Disease Control and Prevention, patient-care items that
penetrate soft tissue are categorized as
✓ -:- critical
The purpose of a holding solution is to
✓ -:- prevent hardening of debris and body fluids on instruments
Which barrier should be removed before temporarily leaving a patient to retrieve supplies?
✓ -:- gloves
The majority of organisms that make up dental unit waterline biofilm consists of
✓ -:- water bacteria
Material Safety Data Sheet (MSDS) are required by OSHA'S
✓ -:- Hazardous Communication Standard
4|Page | Grade A+| 2024/2025
