300+ Lab Technician Interview Questions and Answers

Colour coating of the sheet refers to the process of applying a layer of paint or pigment to a sheet material.

• Colour coating enhances the appearance of the sheet and provides protection against corrosion and wear.

• The coating can be applied using various methods such as spraying, dipping, or electrostatic deposition.

• Different types of coatings are available, including acrylic, epoxy, polyester, and polyurethane.

• The choice of coating depends on factors like the desired color, d...read more

Yes, I have experience conducting lab testing in various settings.

• I have conducted lab testing in academic research labs during my undergraduate studies.

• I have also performed lab testing in a clinical setting during my internship at a hospital.

• I am familiar with using various lab equipment and following standard operating procedures for accurate results.

Concrete tests are used to determine the strength and quality of concrete.

• Compression test measures the strength of concrete under compression

• Slump test measures the consistency of fresh concrete

• Air content test measures the amount of air in concrete

• Water permeability test measures the ability of concrete to resist water penetration

• Chloride permeability test measures the ability of concrete to resist chloride penetration

• Rebound hammer test measures the surface hardness of con...read more

RBCs (red blood cells) are responsible for carrying oxygen throughout the body, while platelets help with blood clotting.

• RBCs are also known as erythrocytes and make up the majority of cells in the blood.

• Platelets, or thrombocytes, are involved in the clotting process to stop bleeding.

• Both RBCs and platelets are produced in the bone marrow.

• Abnormal levels of RBCs or platelets can indicate various health conditions.

• For example, low RBC count may suggest anemia, while low plate...read more

Internal controls are processes put in place by an organization to ensure the accuracy and reliability of financial reporting, compliance with laws and regulations, and safeguarding of assets.

• Internal controls help prevent fraud and errors in financial reporting

• They involve segregation of duties to prevent one person from having too much control over a process

• Regular monitoring and review of controls are essential to ensure effectiveness

• Examples include requiring dual signatu...read more

The given values represent the normal range for hemoglobin and platelet count in a blood test.

• Hemoglobin levels should ideally be between 11.2 gm/dl to 15.6 gm/dl.

• Platelet count should typically range from 1.5 L/cmm to 4.5 L/cmm.

• These values are important indicators of overall health and can help diagnose various medical conditions.

Sickle cell anaemia is a genetic blood disorder where red blood cells become sickle-shaped, causing pain, organ damage, and other complications.

• Sickle cell anaemia is caused by a mutation in the gene that tells the body to make haemoglobin, the red blood cell protein that carries oxygen.

• The sickle-shaped red blood cells can get stuck in blood vessels, leading to pain, organ damage, and increased risk of infections.

• Symptoms of sickle cell anaemia include fatigue, jaundice, pai...read more

The type of duty for a Laboratory Technician typically involves conducting tests, analyzing results, maintaining equipment, and ensuring accuracy in data collection.

• Conducting various tests on samples

• Analyzing test results and recording data accurately

• Maintaining and calibrating laboratory equipment

• Following safety protocols and procedures

• Ensuring quality control and accuracy in all processes

BTU can be converted to watts by multiplying it with 0.293071.

• BTU stands for British Thermal Unit, which is a unit of heat energy.

• Watts is a unit of power.

• To convert BTU to watts, multiply the BTU value by 0.293071.

• The formula for conversion is: Watts = BTU x 0.293071.

• For example, if you have 10,000 BTU, the conversion to watts would be: 10,000 x 0.293071 = 2,930.71 watts.

Incoming material testing details involve evaluating the quality and characteristics of materials before they are used in the lab.

• Testing involves various methods such as visual inspection, physical testing, and chemical analysis.

• Examples of tests include measuring pH levels, checking for impurities, and determining the melting point.

• Testing ensures that materials meet required specifications and standards.

• Results are recorded and analyzed to make informed decisions about mat...read more

The minimum CBR value of the blanket material is a measure of its strength and load-bearing capacity.

• CBR stands for California Bearing Ratio, which is a test to determine the strength of a material.

• The minimum CBR value indicates the lowest load that the material can withstand before it starts to deform or fail.

• A higher minimum CBR value indicates a stronger and more durable material.

• For example, if the minimum CBR value of the blanket material is 10, it means that it can wit...read more

Field test report as per IRC & NHAI specification involves documenting the results of tests conducted on materials used in road construction.

• Ensure all tests are conducted in accordance with IRC & NHAI specifications

• Document all test results accurately

• Include details of materials tested, testing methods used, and results obtained

• Provide recommendations based on test results for further action

• Submit the report to relevant authorities for review and approval

KFT stands for Kidney Function Test, which is a group of blood tests used to evaluate how well the kidneys are functioning.

• KFT is used to measure various parameters such as blood urea nitrogen (BUN), creatinine, and electrolyte levels.

• It helps in diagnosing and monitoring kidney diseases, such as chronic kidney disease and acute kidney injury.

• KFT can also provide information about the overall health of the kidneys and help in determining the effectiveness of certain medicatio...read more

Tumar markar test is a diagnostic test used to detect the presence of tuberculosis in the body.

• It is a blood test that measures the levels of a protein called Tumar marker in the blood.

• High levels of Tumar marker indicate the presence of tuberculosis in the body.

• The test is often used in conjunction with other diagnostic tests to confirm a tuberculosis diagnosis.

• It is a non-invasive and relatively simple test to perform.

Normal range of platelet count is typically between 150,000 to 450,000 platelets per microliter of blood.

• Normal range: 150,000 - 450,000 platelets per microliter of blood

• Low platelet count (thrombocytopenia): Below 150,000 platelets per microliter

• High platelet count (thrombocytosis): Above 450,000 platelets per microliter

There are various types of tests and analyzers used in a lab setting.

• Common types of tests include blood tests, urine tests, genetic tests, and microbiology tests.

• Analyzers can include spectrophotometers, chromatographs, mass spectrometers, and PCR machines.

• Different tests and analyzers are used for different purposes such as diagnosing diseases, monitoring treatment effectiveness, and conducting research.

A test tube is used for holding, mixing, or heating small quantities of liquid chemicals during experiments.

• Used for holding small quantities of liquid chemicals

• Used for mixing different substances together

• Can be used for heating liquids over a Bunsen burner

• Commonly used in chemistry labs for experiments

Tensile test is performed by applying a controlled tension force to a material sample until it breaks, measuring the stress and strain throughout the process.

• Prepare the material sample by cutting it to the required dimensions

• Secure the sample in the testing machine grips

• Apply a controlled tension force at a constant rate

• Measure the force applied and the resulting elongation of the sample

• Calculate stress (force/area) and strain (change in length/original length)

• Plot stress vs...read more

Hematology is the branch of medicine concerned with the study of blood, the blood-forming organs, and blood diseases.

• Hematology involves the study of blood cells, their formation, function, and diseases.

• Common tests in hematology include complete blood count (CBC), blood smear analysis, and coagulation studies.

• Hematologists diagnose and treat conditions such as anemia, leukemia, and bleeding disorders.

• Hematology plays a crucial role in monitoring patients undergoing chemother...read more

Hb test is done to measure the amount of hemoglobin in the blood, which helps diagnose conditions like anemia or polycythemia.

• Hb test is done to check the levels of hemoglobin in the blood.

• It helps diagnose conditions like anemia (low Hb levels) or polycythemia (high Hb levels).

• Hemoglobin carries oxygen from the lungs to the rest of the body, so abnormal levels can indicate various health issues.

Osmoregulation is the process by which organisms regulate the concentration of solutes and water in their bodies to maintain internal balance.

• Osmoregulation helps organisms maintain proper hydration levels and prevent dehydration or overhydration.

• It involves processes such as filtration, reabsorption, and secretion in the kidneys of vertebrates.

• Marine animals like sharks have specialized adaptations for osmoregulation to deal with high salt concentrations in their environment...read more

Yes, I have experience working with LIS (Laboratory Information Systems) and HIS (Hospital Information Systems).

• I have experience using LIS to input and analyze laboratory test results.

• I am familiar with HIS for managing patient records and medical histories.

• I have worked with both LIS and HIS to ensure accurate and efficient data management in a healthcare setting.

The test process in a lab involves conducting experiments, analyzing results, and recording data to ensure accuracy and reliability.

• Collecting samples for testing

• Preparing reagents and equipment

• Running experiments according to established protocols

• Analyzing results and interpreting data

• Recording findings accurately

• Ensuring quality control measures are followed

• Reporting results to relevant parties

It is important for a lab technician to work accurately and efficiently to ensure accurate results and maintain a safe working environment.

• Follow standard operating procedures (SOPs) to ensure accuracy in testing procedures

• Maintain cleanliness and organization in the lab to prevent contamination

• Calibrate and maintain equipment regularly to ensure accurate results

• Communicate effectively with team members to ensure smooth workflow

• Adhere to safety protocols to prevent accidents ...read more

Bitumen ductility test is conducted to determine the ability of bitumen to stretch without breaking.

• It helps in assessing the suitability of bitumen for road construction.

• It is a measure of the viscoelastic behavior of bitumen.

• The test involves stretching a briquette of bitumen at a specific temperature and speed until it breaks.

• The ductility value is expressed in centimeters and indicates the distance the briquette stretched before breaking.

• The test is specified in various s...read more

Critical value of Na refers to the minimum or maximum level of sodium in the blood that requires immediate medical attention.

• Critical value of Na is usually determined by the laboratory where the test was conducted.

• A critical value of Na can indicate a serious medical condition such as hyponatremia or hypernatremia.

• In hyponatremia, the critical value of Na is usually below 120 mmol/L, while in hypernatremia, it is usually above 160 mmol/L.

• Immediate medical attention is requir...read more

I operate a variety of machines including spectrophotometers, microscopes, centrifuges, and PCR machines.

• Spectrophotometers

• Microscopes

• Centrifuges

• PCR machines

Common blood collection sites include veins in the arm, hand, and foot.

• Veins in the antecubital fossa (inner elbow)

• Dorsal venous network of the hand

• Medial aspect of the forearm

• Dorsalis pedis (top of the foot)

• Great saphenous vein (inner thigh)

CBP stands for Complete Blood Picture. Grouping refers to the classification of blood based on the presence or absence of certain antigens.

• CBP is a common blood test that provides information about the different components of blood.

• It includes measurements of red blood cells, white blood cells, and platelets.

• Blood grouping is important for blood transfusions and involves determining the ABO and Rh blood types.

• The ABO blood group system classifies blood into four types: A, B, ...read more

OGTT stands for Oral Glucose Tolerance Test.

• OGTT is a test used to diagnose diabetes by measuring how your body handles glucose after consuming a sugary drink.

• It involves fasting overnight, drinking a glucose solution, and then having blood drawn at specific intervals to measure glucose levels.

• Results can help determine if a person has normal glucose metabolism, prediabetes, or diabetes.

• OGTT is commonly used during pregnancy to diagnose gestational diabetes.

The area of a cylinder is calculated by multiplying the height by the circumference of the base.

• The formula for the area of a cylinder is A = 2πr² + 2πrh

• The area of a cylinder is measured in square units

• The height and radius of the cylinder are needed to calculate the area

The density of cement varies depending on the type and brand.

• The density of ordinary Portland cement is around 3.15 g/cm³

• The density of white cement is around 2.9 g/cm³

• The density of rapid hardening cement is around 3.25 g/cm³

• The density of low heat cement is around 3.0 g/cm³

The density of steel is around 7.85 g/cm³.

• The density of steel varies depending on its composition and temperature.

• Steel is denser than most common metals like aluminum and copper.

• The density of steel is often used in engineering calculations and material selection.

To prepare fluid for Cytospin and LBC, follow specific protocols and use appropriate equipment.

• Collect the fluid sample in a sterile container.

• Centrifuge the sample to concentrate the cells.

• Prepare the Cytospin by placing a small amount of the concentrated cells on a slide and spinning it at high speed to create a monolayer.

• For LBC, use a liquid-based cytology kit to process the sample and create a thin layer on a slide for examination.

• Follow all safety and quality control pr...read more

ABG test is done to measure the levels of oxygen and carbon dioxide in the blood, as well as the blood's pH and bicarbonate levels.

• To assess the adequacy of oxygenation and ventilation in the blood

• To diagnose and monitor conditions such as respiratory failure, metabolic disorders, and kidney disease

• To evaluate the effectiveness of treatment in patients with certain medical conditions

• To determine the need for supplemental oxygen or mechanical ventilation

• To guide adjustments in...read more

Various types of tests are performed in a lab depending on the field, such as chemical analysis, microbiological testing, and genetic testing.

• Chemical analysis tests for the presence of specific chemicals or compounds in a sample.

• Microbiological testing involves identifying and characterizing microorganisms in a sample.

• Genetic testing examines an individual's DNA for genetic variations or mutations.

• Other types of tests may include drug testing, environmental testing, and food...read more

Yes, I am proficient in using various lab tools such as microscopes, pipettes, centrifuges, and spectrophotometers.

• Familiar with operating microscopes for magnifying and examining samples

• Skilled in using pipettes for precise measurement and transfer of liquids

• Experienced in operating centrifuges for separating components of a mixture based on density

• Knowledgeable in using spectrophotometers for measuring the intensity of light absorbed by a sample

Chemicals are used in various places depending on their properties and intended use.

• Chemicals are used in laboratories for experiments and research.

• They are used in industries for manufacturing products.

• Chemicals are used in agriculture for fertilizers and pesticides.

• They are used in households for cleaning and disinfecting.

• Chemicals are also used in medical field for diagnosis and treatment.

• The place of using chemicals depends on their properties and intended use.

Bombay blood group can be identified through blood typing tests that specifically look for the absence of H antigen.

• Perform blood typing tests to determine the presence or absence of H antigen

• Look for the absence of H antigen to indicate Bombay blood group

• Confirm the Bombay blood group through further testing if necessary

The normal range of HbA1c is typically between 4% to 5.6%.

• Normal range of HbA1c is between 4% to 5.6%

• HbA1c levels above 6.5% may indicate diabetes

• HbA1c levels below 5.7% are considered normal

• Regular monitoring of HbA1c levels is important for managing diabetes

A lab is a controlled environment where scientific experiments, research, and tests are conducted.

• Laboratories are equipped with specialized equipment and tools for conducting experiments.

• Lab technicians play a crucial role in performing tests, analyzing results, and maintaining lab equipment.

• Different types of labs include chemistry labs, biology labs, medical labs, and research labs.

• Lab safety protocols are essential to prevent accidents and ensure accurate results.

There are different types of cement such as Portland cement, white cement, and rapid hardening cement. Soundness test is used to determine the ability of cement to not change its volume after setting.

• Portland cement is the most commonly used cement in construction.

• White cement is used for decorative purposes.

• Rapid hardening cement is used in situations where quick setting is required.

• Soundness test involves measuring the expansion of cement when mixed with water and kept in a...read more

Airflow can be measured using various instruments such as anemometers, pitot tubes, and hot-wire anemometers.

• Anemometers measure the velocity of air using rotating cups or propellers.

• Pitot tubes measure the pressure difference between the stagnation point and the static point of the fluid.

• Hot-wire anemometers measure the cooling effect of air on a heated wire.

• Airflow can also be measured using flow hoods or flow grids.

• The units of measurement for airflow are typically cubic f...read more

The tube carbamazepine test is used to measure the level of carbamazepine in a patient's blood.

• The test involves collecting a blood sample from the patient.

• The blood sample is then placed in a tube containing a reagent that reacts with carbamazepine.

• The tube is then placed in a spectrophotometer to measure the absorbance of the reaction.

• The absorbance reading is compared to a standard curve to determine the concentration of carbamazepine in the blood.

Triaxial test is a soil testing method used to determine the shear strength parameters of soil.

• Triaxial test involves applying a confining pressure to a cylindrical soil sample and then subjecting it to an axial load.

• The test helps in determining the shear strength parameters of soil such as cohesion and angle of internal friction.

• It is commonly used in geotechnical engineering for designing foundations, retaining walls, and slopes.

• The test can also be used to determine the s...read more

There are several types of cement tests performed in a laboratory.

• Some common types of cement tests include compressive strength test, setting time test, soundness test, fineness test, and heat of hydration test.

• Compressive strength test measures the ability of cement to withstand a crushing load.

• Setting time test determines the time taken by cement to set and harden.

• Soundness test checks the stability of cement against volume changes.

• Fineness test measures the particle size ...read more

No, a lypemic sample cannot be run.

• Lypemic samples have high levels of lipids, which can interfere with lab tests.

• The lipids can cause turbidity, which can affect the accuracy of results.

• The sample needs to be clarified before running any tests.

• This can be done by centrifugation or by adding a lipid-clearing agent.