CDC 4Y051 Set O vol 1 Exam
Questions with 100% Correct Answers
Verified Latest Update 2026!!
1. (001) The level of maintenance that includes actions relating to
proper operation, daily inspection, cleaning, simple lubrication, and
minor exterior repair and operational adjustment of equipment is
called
a. user.
b. depot.
c. intermediate.
d. organizational. -
correct answer ✅a. user
2. (001) Inspecting, servicing, lubricating, adjusting, repairing,
calibrating, modifying, and replacing parts of assemblies and
subassemblies are included in what level of maintenance?
a. User.
b. Depot.
c. Intermediate.
d. Organizational. -
correct answer ✅d. Organizational
,CDC 4Y051 Set O vol 1 Exam
Questions with 100% Correct Answers
Verified Latest Update 2026!!
3. (001) Major repairs, overhauls, rebuilding of components and
subassemblies, and manufacture of parts are normally limited to
what level of maintenance?
a. User.
b. Depot.
c. Intermediate.
d. Organizational. -
correct answer ✅b. Depot
4. (002) What level of maintenance includes the systematic care,
servicing, and inspection of equipment, and detection and
correction of all minor faults before they develop into major
defects?
a. Certification.
b. Calibration.
c. Preventive.
d. Contract. -
correct answer ✅c. Preventive
,CDC 4Y051 Set O vol 1 Exam
Questions with 100% Correct Answers
Verified Latest Update 2026!!
5. (002) What type of maintenance involves troubleshooting to
isolate the cause of equipment malfunction, and replacing or
adjusting components or subsystems to restore normal function,
safety, performance, and reliability of medical equipment?
a. Contract.
b. Scheduled.
c. Preventive.
d. Unscheduled. -
correct answer ✅d. Unscheduled
6. (003) How can you stop a dental chair once the preposition or
auto return switch is activated?
a. Cannot be stopped.
b. Press another switch.
c. Press the safety stop plate.
d. Press any other switch or the safety stop plate. -
correct answer ✅d. Press any other switch or the safety stop plate.
, CDC 4Y051 Set O vol 1 Exam
Questions with 100% Correct Answers
Verified Latest Update 2026!!
7. (003) What must you do if the preset positions of the preposition
or auto return switches on the dental chair are not correct for
treatment?
a. Request a BMET perform preventive maintenance.
b. Consult the manufacturer's instructions and adjust them.
c. Discontinue using these switches.
d. Nothing; they cannot be changed. -
correct answer ✅b. Consult the manufacturer's instructions and
adjust them.
8. (003) What feature allows the dental chair to rotate to
approximately 45 degrees from either side of the center and then
lock in position? a. Chair control switches.
b. Foot control switches.
c. Safety stop plate.
d. Swivel/brake. -
correct answer ✅d. Swivel/brake
9. (003) Repairing or replacing the inner workings of the dental
chair's hydraulic and electrical systems is done by the
Questions with 100% Correct Answers
Verified Latest Update 2026!!
1. (001) The level of maintenance that includes actions relating to
proper operation, daily inspection, cleaning, simple lubrication, and
minor exterior repair and operational adjustment of equipment is
called
a. user.
b. depot.
c. intermediate.
d. organizational. -
correct answer ✅a. user
2. (001) Inspecting, servicing, lubricating, adjusting, repairing,
calibrating, modifying, and replacing parts of assemblies and
subassemblies are included in what level of maintenance?
a. User.
b. Depot.
c. Intermediate.
d. Organizational. -
correct answer ✅d. Organizational
,CDC 4Y051 Set O vol 1 Exam
Questions with 100% Correct Answers
Verified Latest Update 2026!!
3. (001) Major repairs, overhauls, rebuilding of components and
subassemblies, and manufacture of parts are normally limited to
what level of maintenance?
a. User.
b. Depot.
c. Intermediate.
d. Organizational. -
correct answer ✅b. Depot
4. (002) What level of maintenance includes the systematic care,
servicing, and inspection of equipment, and detection and
correction of all minor faults before they develop into major
defects?
a. Certification.
b. Calibration.
c. Preventive.
d. Contract. -
correct answer ✅c. Preventive
,CDC 4Y051 Set O vol 1 Exam
Questions with 100% Correct Answers
Verified Latest Update 2026!!
5. (002) What type of maintenance involves troubleshooting to
isolate the cause of equipment malfunction, and replacing or
adjusting components or subsystems to restore normal function,
safety, performance, and reliability of medical equipment?
a. Contract.
b. Scheduled.
c. Preventive.
d. Unscheduled. -
correct answer ✅d. Unscheduled
6. (003) How can you stop a dental chair once the preposition or
auto return switch is activated?
a. Cannot be stopped.
b. Press another switch.
c. Press the safety stop plate.
d. Press any other switch or the safety stop plate. -
correct answer ✅d. Press any other switch or the safety stop plate.
, CDC 4Y051 Set O vol 1 Exam
Questions with 100% Correct Answers
Verified Latest Update 2026!!
7. (003) What must you do if the preset positions of the preposition
or auto return switches on the dental chair are not correct for
treatment?
a. Request a BMET perform preventive maintenance.
b. Consult the manufacturer's instructions and adjust them.
c. Discontinue using these switches.
d. Nothing; they cannot be changed. -
correct answer ✅b. Consult the manufacturer's instructions and
adjust them.
8. (003) What feature allows the dental chair to rotate to
approximately 45 degrees from either side of the center and then
lock in position? a. Chair control switches.
b. Foot control switches.
c. Safety stop plate.
d. Swivel/brake. -
correct answer ✅d. Swivel/brake
9. (003) Repairing or replacing the inner workings of the dental
chair's hydraulic and electrical systems is done by the
