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Latest JSSC JTGLCCE Dairy Technical Officer Exam Question (Objective Questions), MCQ in English

Subjects : Technical Subject (Dairy Technical Officer), General Studies, General Science, General Mathematics

Question Bank JSSC JTGLCCE Dairy Technical Officer (Mains) Paper 3 Exam - English
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Technical Subject (Dairy Technical Officer)

Question 1Single Answer
Which material is most suitable for sanitary dairy equipment surfaces due to corrosion resistance and ease of cleaning?
  1. A
    Mild steel
  2. B
    Stainless steel
  3. C
    Cast iron
  4. D
    Copper
Question 2Single Answer
What is the main purpose of sanitary fittings in dairy piping systems?
  1. A
    Increase flow resistance
  2. B
    Reduce pipe diameter
  3. C
    Prevent microbial contamination
  4. D
    Increase viscosity
Question 3Single Answer
Which piping system is commonly used in dairy plants for high hygiene standards?
  1. A
    PVC drainage pipes
  2. B
    Galvanized iron pipes
  3. C
    Concrete pipes
  4. D
    Stainless steel sanitary pipes
Question 4Single Answer
What is the function of gaskets in dairy pipelines?
  1. A
    Prevent leakage at joints
  2. B
    Increase pressure
  3. C
    Increase flow rate
  4. D
    Heat transfer
Question 5Single Answer
Which washing system is used for cleaning internal surfaces of dairy equipment without dismantling?
  1. A
    Hand washing
  2. B
    Dry cleaning
  3. C
    CIP system
  4. D
    Steam drying only
Question 6Single Answer
What does CIP stand for in dairy engineering?
  1. A
    Clean-in-Place
  2. B
    Continuous Internal Processing
  3. C
    Cleaning in Production
  4. D
    Controlled Internal Purification
Question 7Single Answer
Which factor most affects bottle washer efficiency?
  1. A
    Milk fat content
  2. B
    Air humidity only
  3. C
    Bottle color
  4. D
    Temperature and detergent concentration
Question 8Single Answer
Which equipment is used to clean milk cans in dairy plants?
  1. A
    Can washer
  2. B
    Homogenizer
  3. C
    Separator
  4. D
    Pasteurizer
Question 9Single Answer
Sedimentation in dairy processing is based on which principle?
  1. A
    Magnetic force
  2. B
    Electrical charge
  3. C
    Density difference under gravity
  4. D
    Viscosity increase
Question 10Single Answer
Centrifugal separation works on the principle of?
  1. A
    Gravity only
  2. B
    Magnetic field
  3. C
    Centrifugal force
  4. D
    Capillary action
Question 11Single Answer
Which device is used to separate cream from milk?
  1. A
    Cream separator
  2. B
    Filter press
  3. C
    Homogenizer
  4. D
    Boiler
Question 12Single Answer
What is the main function of a clarifier in dairy industry?
  1. A
    Heat milk
  2. B
    Add bacteria
  3. C
    Increase fat content
  4. D
    Remove suspended impurities
Question 13Single Answer
Which centrifuge removes bacteria from milk?
  1. A
    Basket centrifuge
  2. B
    Bacto-fuge
  3. C
    Disc centrifuge
  4. D
    Tube centrifuge
Question 14Single Answer
Homogenization in milk processing is mainly used to?
  1. A
    Increase viscosity
  2. B
    Reduce fat globule size
  3. C
    Increase acidity
  4. D
    Remove proteins
Question 15Single Answer
A single-stage homogenizer operates at?
  1. A
    Moderate pressure
  2. B
    Low pressure
  3. C
    High pressure only
  4. D
    Zero pressure
Question 16Single Answer
Two-stage homogenization mainly helps to?
  1. A
    Increase particle size
  2. B
    Reduce milk quantity
  3. C
    Improve fat dispersion stability
  4. D
    Increase sedimentation
Question 17Single Answer
Pasteurization is primarily used to?
  1. A
    Destroy pathogenic microorganisms
  2. B
    Increase fat
  3. C
    Increase viscosity
  4. D
    Add preservatives
Question 18Single Answer
HTST stands for?
  1. A
    High Thermal Steam Treatment
  2. B
    High Temperature Short Time
  3. C
    Heat Transfer Standard Technique
  4. D
    High Temperature Slow Treatment
Question 19Single Answer
Flow diversion valve in pasteurizer is used to?
  1. A
    Increase flow rate
  2. B
    Divert under-processed milk
  3. C
    Add steam
  4. D
    Reduce pressure
Question 20Single Answer
Batch pasteurization is also known as?
  1. A
    Flash pasteurization
  2. B
    LTLT method
  3. C
    UHT method
  4. D
    Aseptic method
Question 21Single Answer
UHT treatment temperature range is approximately?
  1. A
    135–150°C
  2. B
    72–75°C
  3. C
    60–70°C
  4. D
    40–50°C
Question 22Single Answer
Sterilization in dairy ensures?
  1. A
    Partial microbial reduction
  2. B
    Protein removal
  3. C
    Fat increase
  4. D
    Complete destruction of microorganisms
Question 23Single Answer
In-bottle sterilization is performed using?
  1. A
    Cold air
  2. B
    UV light only
  3. C
    Steam under pressure
  4. D
    Vacuum drying
Question 24Single Answer
Autoclaves operate using?
  1. A
    Vacuum only
  2. B
    Cold water
  3. C
    High pressure steam
  4. D
    Air compression
Question 25Single Answer
Aseptic packaging requires?
  1. A
    Non-sterile environment
  2. B
    Open filling
  3. C
    Low temperature only
  4. D
    Sterile product and sterile package
Question 26Single Answer
Bottle filling machines are used for?
  1. A
    Filling liquid products
  2. B
    Washing bottles
  3. C
    Heating milk
  4. D
    Cooling milk
Question 27Single Answer
Capping machines are used to?
  1. A
    Seal containers after filling
  2. B
    Clean bottles
  3. C
    Pasteurize milk
  4. D
    Separate cream
Question 28Single Answer
Pouch filling machines are commonly used for?
  1. A
    Solid milk products
  2. B
    Cheese production
  3. C
    Liquid milk packaging
  4. D
    Butter churning
Question 29Single Answer
Mixing in dairy engineering is used to?
  1. A
    Separate solids
  2. B
    Achieve uniform distribution
  3. C
    Increase sediment
  4. D
    Reduce flow
Question 30Single Answer
Agitators are mainly used for?
  1. A
    Heating milk
  2. B
    Filtering solids
  3. C
    Freezing milk
  4. D
    Mixing liquids
Question 31Single Answer
Paddle agitators are best suited for?
  1. A
    Dry solids only
  2. B
    Gases only
  3. C
    High viscosity fluids
  4. D
    Vacuum systems
Question 32Single Answer
Impeller mixers are commonly used for?
  1. A
    Solid mixing only
  2. B
    Liquid mixing
  3. C
    Filtration
  4. D
    Sedimentation
Question 33Single Answer
Power consumption in mixing depends on?
  1. A
    Color of fluid
  2. B
    Container shape only
  3. C
    Impeller type and speed
  4. D
    Temperature only
Question 34Single Answer
Sanitary design in dairy equipment aims to prevent?
  1. A
    Heat loss
  2. B
    Flow increase
  3. C
    Pressure drop
  4. D
    Microbial contamination
Question 35Single Answer
Plastic tubing in dairy systems is preferred due to?
  1. A
    Flexibility and chemical resistance
  2. B
    High corrosion
  3. C
    High weight
  4. D
    Low durability
Question 36Single Answer
Which operation removes cream from milk?
  1. A
    Homogenization
  2. B
    Sterilization
  3. C
    Separation
  4. D
    Pasteurization
Question 37Single Answer
Rate of filtration depends mainly on?
  1. A
    Pressure difference and medium resistance
  2. B
    Color of filter
  3. C
    Milk taste
  4. D
    Container size
Question 38Single Answer
Filtration in dairy is used for?
  1. A
    Heating milk
  2. B
    Fermentation
  3. C
    Adding water
  4. D
    Removing suspended particles
Question 39Single Answer
Gravity setting is influenced by?
  1. A
    Electrical field
  2. B
    Light intensity
  3. C
    Magnetic field
  4. D
    Particle density
Question 40Single Answer
Continuous sterilization plant works on?
  1. A
    Continuous flow process
  2. B
    Batch process
  3. C
    Manual process
  4. D
    Freezing process
Question 41Single Answer
Care of dairy pipelines includes?
  1. A
    Painting internal surfaces
  2. B
    Blocking flow
  3. C
    Regular cleaning and inspection
  4. D
    Increasing roughness
Question 42Single Answer
Sanitary pipes are designed with?
  1. A
    Sharp corners
  2. B
    Open joints
  3. C
    Rust layers
  4. D
    Smooth internal surfaces
Question 43Single Answer
CIP cleaning uses?
  1. A
    Chemical solutions circulation
  2. B
    Manual scrubbing
  3. C
    Dry air only
  4. D
    Sand blasting
Question 44Single Answer
Separator efficiency depends on?
  1. A
    Speed and bowl design
  2. B
    Milk color
  3. C
    Bottle shape
  4. D
    Room light
Question 45Single Answer
Clarifiers are used before?
  1. A
    Packaging
  2. B
    Heating only
  3. C
    Separation of fat
  4. D
    Cooling only
Question 46Single Answer
Bactofuge removes mainly?
  1. A
    Bacteria
  2. B
    Fat
  3. C
    Water
  4. D
    Minerals
Question 47Single Answer
Homogenization pressure is typically?
  1. A
    Very low
  2. B
    Atmospheric only
  3. C
    Zero pressure
  4. D
    High pressure
Question 48Single Answer
Sterilizers in dairy are maintained by?
  1. A
    Ignoring cleaning
  2. B
    Dry storage only
  3. C
    Increasing contamination
  4. D
    Regular calibration and cleaning
Question 49Single Answer
Filling machines must ensure?
  1. A
    Hygienic and accurate filling
  2. B
    Uneven filling
  3. C
    Air contamination
  4. D
    Leakage
Question 50Single Answer
Mixing pumps are used for?
  1. A
    Liquid circulation and mixing
  2. B
    Solid cutting
  3. C
    Freezing milk
  4. D
    Drying products
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