Metal Packaging Materials MCQs : This section focuses on the "Metal Packaging Materials" in Food Packaging Technology. These Multiple Choice Questions (MCQs) should be practiced to improve the Food Packaging Technology skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Question 1
What foods are packaged in metal?
A. Beer and soft drink cans
B. Food cans
C. Drums and pails
D. All of the above
View Answer
Ans : D
Explanation: The different types of metal packaging include: Beer and soft drink cans, Food can, Drums and pails, Aerosol containers, Tubes , Open trays and Caps and closures
Question 2
A Metal Packaging is made of __________ materials.
A. 1
B. 2
C. 3
D. 4
View Answer
Ans : B
Explanation: A Metal Packaging is made of two materials: steel sheets called aliminium and bin
Question 3
Which of the following are advantages of metal packaging?
A. Foods filled in metal packaging do not need any additives
B. Weight of metal packaging is low
C. Resistance is high
D. All of the above
View Answer
Ans : D
Explanation: All of the above are advantages of metal packaging.
Question 4
What are Most Common Types of Packaging Materials?
A. Plastic
B. Glass
C. Aluminum
D. All of the above
View Answer
Ans : D
Explanation: All of the above are Most Common Types of Packaging Materials.
Question 5
________ is used as protective layer for steel.
A. Chromium
B. Aluminum
C. Boron
D. Iron
View Answer
Ans : A
Explanation: Steel tends to oxidize when it is exposed to moisture and oxygen, producing rust. Therefore, chromium is used as protective layers for steel. If chromium is used to provide corrosion protection, the resulting material is called electrolytic chromium- coated steel (ECCS) or tin-free steel (TFS). ECCS has better heat resistance than tinplate and is less expensive.
Question 6
The thickness of iron slabs after rolling is around _______
A. 550 mm
B. 100 mm
C. 250 mm
D. 150 mm
View Answer
Ans : C
Explanation: These metalloids must be substantially reduced in the steelmaking stage, and this is commonly accomplished using a basic oxygen furnace. From the furnace, the steel is cast into ingots, which are subsequently rolled into slabs about 250 mm thick or, more commonly today, continuously cast into slab form.
Question 7
Which of the following is not an iron ore?
A. Hematite
B. Magnetite
C. Cryolite
D. Limonite
View Answer
Ans : C
Explanation: Cryolite is not an iron ore.
Question 8
The uncoated steel sheet before tinplating is known as ________
A. steelplate
B. blackplate
C. bareplate
D. foreplate
View Answer
Ans : B
Explanation: The uncoated steel sheet before tinplating is referred to as blackplate, thus called because some of the early production was covered with black iron oxide. It is the raw material for electrolytic tinplate (ETP) and ECCS.
Question 9
The method of making tinplate by electroplating is also known as ________
A. selective tinplating
B. uniform tinplating
C. differential tinplating
D. bilayer tinplating
View Answer
Ans : C
Explanation: The method of making tinplate by electroplating is also known as differential tinplating. The introduction of the electroplating process enabled a different thickness of tin to be applied to the two surfaces of the steel. Differential tinplating is the most cost-effective method and is efficient in covering interior and exterior of the container in a single step.
Question 10
Foods filled in metal packaging have a longer shef life.
A. Yes
B. No
C. Can be yes or no
D. Can not say
View Answer
Ans : A
Explanation: Yes, Foods filled in metal packaging have a longer shef life.