Lubricant Analyst Practice Questions & Answers
This specialized technical preparation guide delivers comprehensive practice questions,
verified answers, and detailed operational rationales for the International Council for
Machinery Lubrication (ICML) Machine Lubricant Analyst Level I (MLA 1) exam. It
systematically addresses essential asset reliability domains, including lubricant
sampling methodologies, oil analysis fundamentals, machine wear mechanisms, and
storage and handling contamination control. Maintenance technicians, reliability
engineers, and plant operators will master ISO 18436-4 standards and condition
monitoring strategies to successfully secure their professional industrial credentials.
1. What is the primary purpose of a Medical Laboratory Assistant (MLA) in a clinical
laboratory?
A. Diagnosing diseases independently
B. Supporting specimen collection, processing, and laboratory operations
C. Prescribing medications
D. Performing independent medical examinations
Answer: B. Supporting specimen collection, processing, and laboratory operations
Rationale: An MLA supports laboratory services through activities such as specimen collection,
identification, processing, and other duties within the individual's authorized scope.
2. Which action should be performed first when receiving a laboratory specimen?
A. Immediately centrifuge it
B. Verify the specimen identification and accompanying information
C. Dispose of the specimen container
D. Refrigerate every specimen
Answer: B. Verify the specimen identification and accompanying information
,Rationale: Proper identification is essential before processing a specimen because errors at this
stage can compromise patient safety and laboratory results.
3. Which information is most important for accurately identifying a patient before
specimen collection?
A. Room number only
B. Appropriate patient identifiers
C. Patient's occupation
D. Patient's preferred appointment time
Answer: B. Appropriate patient identifiers
Rationale: Using appropriate identifiers helps prevent wrong-patient specimen collection and
identification errors.
4. What should an MLA do if a specimen label does not match the requisition?
A. Guess which information is correct
B. Correct the label independently
C. Follow the laboratory's specimen discrepancy procedure
D. Process the specimen immediately
Answer: C. Follow the laboratory's specimen discrepancy procedure
Rationale: Identification discrepancies must be resolved according to established laboratory
procedures rather than corrected by guessing.
5. Which specimen characteristic is most important before processing?
A. The patient's favorite color
B. Correct specimen type and collection container
C. The patient's occupation
D. The time of the patient's previous appointment
Answer: B. Correct specimen type and collection container
,Rationale: Different laboratory tests require specific specimen types and containers to ensure
accurate testing.
6. What is the primary purpose of a laboratory requisition?
A. To provide information necessary for the requested testing
B. To replace patient identification
C. To serve as a medication prescription
D. To document the patient's insurance history only
_Answer: A. To provide information necessary for the requested testing
Rationale: A requisition communicates important patient and test information to the laboratory.
7. Which action helps prevent specimen contamination?
A. Touching the inside of specimen containers
B. Using appropriate collection and handling techniques
C. Leaving containers open
D. Reusing contaminated collection materials
Answer: B. Using appropriate collection and handling techniques
Rationale: Proper technique reduces contamination that could affect laboratory results.
8. Why should specimen containers remain properly closed?
A. To prevent contamination, leakage, and exposure
B. To make the specimen easier to identify
C. To increase specimen volume
D. To change the specimen's composition
_Answer: A. To prevent contamination, leakage, and exposure
Rationale: Properly closed containers protect the specimen, laboratory personnel, and
surrounding environment.
, 9. What is the purpose of wearing appropriate personal protective equipment in the
laboratory?
A. To improve laboratory appearance
B. To reduce exposure to potentially hazardous materials
C. To replace hand hygiene
D. To eliminate all laboratory risks
Answer: B. To reduce exposure to potentially hazardous materials
Rationale: PPE provides a barrier against blood, body fluids, chemicals, and other workplace
hazards.
10. Which practice is essential after removing contaminated gloves?
A. Immediately touching clean equipment
B. Performing appropriate hand hygiene
C. Reusing the gloves
D. Touching the face
Answer: B. Performing appropriate hand hygiene
Rationale: Gloves do not replace hand hygiene. Hands should be cleaned appropriately after
glove removal.
11. Which blood collection tube is commonly associated with coagulation testing?
A. Light-blue-top tube
B. Gray-top tube
C. Lavender-top tube
D. Green-top tube
Answer: A. Light-blue-top tube
Rationale: Light-blue-top tubes contain sodium citrate and are commonly used for coagulation
studies.