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WorksheetsDIC 2209 CAT 1
Total questions: 60
Worksheet time: 3600secs
Name
Class
Date
1.
At what depths and temperatures does the process of converting kerogen into liquid and gaseous hydrocarbons occur, known as the "oil window"
a)
0-1 km and 20-40°C
b)
2-5 km and 60-120°C
c)
5-10 km and 150-200°C
d)
10-15 km and 250-300°C
2.
Why is sugarcane immediately transported to the mill after harvesting
a)
To increase its fiber content
b)
To prevent sugar degradation
c)
To allow for natural fermentation
d)
To reduce its water content
3.
What is the purpose of emollients in cosmetics?
a)
To increase product viscosity
b)
To soften and smooth the skin
c)
To extend shelf life
d)
To provide sun protection
4.
What is the purpose of preservatives in cosmetic formulations
a)
To provide fragrance
b)
To help mix oil and water-based ingredients
c)
To prevent microbial growth
d)
To provide pigmentation
5.
What is the primary function of sunscreens?
a)
To moisturize the skin
b)
To protect the skin from harmful UV radiation
c)
To exfoliate dead skin cells
d)
To provide a cooling sensation
6.
What is the main function of emulsifiers in cosmetics?
a)
To provide fragrance
b)
To prevent microbial growth
c)
To stabilize mixtures of immiscible liquids like oil and water
d)
To give color to the product
7.
What is the main purpose of microbial testing in cosmetic quality control?
a)
To assess product fragrance
b)
To ensure the product is free from harmful microorganisms
c)
To evaluate packaging integrity
d)
To determine product viscosity
8.
What is the primary role of preservatives in cosmetic formulations?
a)
To enhance skin absorption
b)
To prevent microbial growth and spoilage
c)
To provide a pleasant scent
d)
To alter the product's color
9.
What is the primary purpose of adding sulfur dioxide (SO2) during the steeping process in corn wet milling
a)
To enhance starch gelatinization
b)
To inhibit microbial growth and soften kernels
c)
To increase protein content
d)
To aid in germ separation
10.
Which of the following is generally simpler in processing due to the absence of a distinct germ and less tenacious protein binding
a)
Corn
b)
Wheat
c)
Potatoes
d)
Cassava
11.
Which of the following is NOT listed as a common industrial source of starch
a)
Corn
b)
Wheat
c)
Barley
d)
Cassava
12.
Which green chemistry practice involves reducing hazardous chemicals in production processes
a)
Catalytic reactions
b)
Use of safer solvents
c)
Heat recovery systems
d)
Carbon footprint reduction
13.
What is the final step in refining where different petroleum products are mixed to meet specific fuel performance and environmental standards
a)
Cracking
b)
Reforming
c)
Blending
d)
Purification
14.
Which alkali is used for making hard soaps
a)
Potassium hydroxide (KOH)
b)
Sodium hydroxide (NaOH)
c)
Calcium hydroxide (Ca(OH)2)
d)
Ammonium hydroxide (NH4OH)
15.
What is the process of breaking down large hydrocarbon molecules into smaller, more useful molecules using heat, pressure, and catalysts
a)
Polymerization
b)
Reforming
c)
Alkylation
d)
Cracking
16.
What type of starch modification involves cooking and then drying the starch, allowing it to hydrate and thicken in cold water
a)
Acid-Modified Starch
b)
Pre-gelatinized (Instant) Starch
c)
Cross-linked Starch
d)
Oxidized Starch
17.
What is the measure of the degree of hydrolysis in glucose syrup, representing the percentage of reducing sugars
a)
Brix
b)
pH
c)
Viscosity
d)
Dextrose Equivalent (DE)
18.
What is the primary challenge related to stability in cosmetic products?
a)
Maintaining a consistent fragrance
b)
Preventing separation of phases, changes in color, odor, or texture over time
c)
Ensuring immediate absorption into the skin
d)
Reducing product density
19.
Which of the following is a key step in the manufacturing process of emulsions, such as creams and lotions?
a)
High-temperature distillation
b)
Mixing of immiscible phases with high shear to form a stable dispersion
c)
Filtration through activated charcoal
d)
Lyophilization (freeze-drying)
20.
What is the primary use of bagasse, the fibrous residue from sugarcane after juice extraction
a)
Animal feed
b)
Paper/pulp production
c)
Biofuels
d)
Fuel in sugar mills
21.
What is API Gravity a measure of
a)
The ignition quality of diesel fuel
b)
The density of petroleum liquids relative to water
c)
Gasoline’s resistance to knocking
d)
The viscosity of crude oil
22.
According to the widely accepted Organic Theory, what do petroleum and petrochemicals originate from
a)
Deep-earth chemical reactions
b)
The decomposition of ancient marine organisms
c)
High temperatures and pressure in the Earth’s mantle
d)
Volcanic activity
23.
What term refers to a naturally occurring yellowish-black liquid mixture mainly made of hydrocarbons, also known as crude oil
a)
Bitumen
b)
Petroleum
c)
Naphtha
d)
Kerosene
24.
What is the study of carbon-based compounds, forming the foundation of industries like pharmaceuticals and plastics
a)
Inorganic Chemistry
b)
Organic Chemistry
c)
Physical Chemistry
d)
Analytical Chemistry
25.
What quality control parameter measures the sucrose content in final refined sugar
a)
ICUMSA units
b)
Moisture Content
c)
Ash Content
d)
Polarization (Pol)
26.
What type of test is conducted to assess potential skin irritation or allergic reactions to a cosmetic product?
a)
pH testing
b)
Stability testing
c)
Viscosity measurement
d)
Safety/dermatological testing
27.
Which of the following is NOT typically classified as an excipient in cosmetics?
a)
Solvents
b)
Preservatives
c)
Thickeners
d)
SPF agents
28.
What trend in cosmetic technology focuses on tailoring products to an individual's unique needs?
a)
Mass production
b)
Personalization and customization
c)
Standardization of formulas
d)
Reduction of active ingredients
29.
What is biomass primarily used for, as a major renewable source of carbon
a)
To produce plastics
b)
To create biofuels
c)
To refine petroleum
d)
To synthesize agrochemicals
30.
Why is quality control a crucial aspect of cosmetic manufacturing?
a)
To reduce production costs
b)
To ensure product safety, efficacy, and consistency
c)
To speed up the manufacturing process
d)
To enhance product marketing
31.
What is the most critical step in sugar refining that involves removing coloring matter and other impurities
a)
Affination
b)
Evaporation
c)
Crystallization
d)
Decolorization
32.
What are the thin, V-shaped strips that sugar beets are sliced into to facilitate efficient sugar extraction called
a)
Bagasse
b)
Cossettes
c)
Pulp
d)
Molasses
33.
Besides being a primary sweetener, what is another significant function of sugar in jams and jellies
a)
Bulking agent
b)
Flavor enhancer
c)
Humectant
d)
Preservative
34.
What essential ingredient is used in hard-boiled sweets to inhibit sucrose crystallization and provide chewiness/plasticity
a)
Citric Acid
b)
Glucose Syrup (Corn Syrup)
c)
Water
d)
Flavorings
35.
What is the initial step in crude oil refining, separating components based on boiling points
a)
Cracking
b)
Fractional Distillation
c)
Unification
d)
Alkylation
36.
Which method of sugarcane juice extraction involves passing shredded cane through a series of heavy-duty roller mills
a)
Diffusion
b)
Leaching
c)
Centrifugation
d)
Milling
37.
What are cosmetic products with medicinal benefits classified as
a)
Emollients
b)
Humectants
c)
Surfactants
d)
Cosmeceuticals
38.
Which type of ingredient is responsible for imparting color to cosmetic products?
a)
Emollients
b)
Fragrances
c)
Humectants
d)
Colorants
39.
What is a key challenge in formulating anti-aging creams?
a)
Ensuring a pleasant scent
b)
Delivering active ingredients effectively into the skin layers where they can act
c)
Achieving a high pH
d)
Making the cream highly viscous
40.
In corn wet milling, what is the buoyant material separated by hydrocyclones after coarse grinding
a)
Fiber
b)
Gluten
c)
Starch granules
d)
Germ
41.
What does GMP stand for in the context of cosmetic manufacturing?
a)
Good Manufacturing Practices
b)
General Marketing Principles
c)
Global Material Production
d)
Green Manufacturing Procedures
42.
Which of the following is a major industrial use of starch as a thickening and stabilizing agent
a)
In biodegradable plastics
b)
In drilling fluids
c)
As a fermentation substrate
d)
In soups, sauces, and dairy products
43.
What is a significant future trend in cosmetic raw materials, driven by environmental concerns?
a)
Greater emphasis on sustainable sourcing and biodegradable ingredients
b)
Increased reliance on synthetic polymers
c)
Development of more highly volatile compounds
d)
Exclusive use of animal-derived ingredients
44.
What does a higher octane number indicate about a fuel
a)
It can withstand more compression before detonating
b)
It has higher density
c)
It has a lower boiling point
d)
It is less volatile
45.
Which of the following is an advantage of petroleum mentioned in the document
a)
It is a renewable energy source
b)
It emits only non-toxic carbon elements
c)
Its transportation never causes oil spills
d)
It can help in generating a substantial amount of energy
46.
What is a synthetic cleansing agent that works in hard water and acidic conditions
a)
Detergent
b)
Soap
c)
Glycerin
d)
Fatty Acid
47.
What is the solid residue from juice clarification in sugar processing, rich in organic matter and nutrients, used as
a)
Filter Cake (Press Mud/Mud Cake)
b)
Spent Cossettes
c)
Corn Gluten Meal
d)
Corn Steep Liquor
48.
What is the valuable by-product of soap making that is separated using distillation or ion exchange and used in pharmaceuticals and cosmetics
a)
Glycerin
b)
Surfactant
c)
Micelle
d)
Fatty Acid
49.
What is added to raw juice during purification to neutralize acids and precipitate certain impurities
a)
Sulfur dioxide
b)
Carbon dioxide
c)
Phosphoric acid
d)
Calcium hydroxide (milk of lime)
50.
How do physical UV filters, like zinc oxide, protect the skin?
a)
By reflecting and scattering UV radiation
b)
By absorbing UV radiation and converting it into heat
c)
By neutralizing free radicals
d)
By promoting melanin production
51.
What process breaks down large hydrocarbons into smaller ones using heat, catalysts, or hydrogen
a)
Reforming
b)
Blending
c)
Distillation
d)
Cracking
52.
Which enzyme is primarily used during the saccharification stage to hydrolyze dextrins into glucose
a)
Alpha-amylase
b)
Beta-amylase
c)
Glucose isomerase
d)
Glucoamylase
53.
What is molasses primarily used for, as a by-product of sugar processing
a)
As an energy source in animal feed
b)
As a soil conditioner
c)
For pectin extraction
d)
In building materials
54.
Which of the following best describes cosmetics?
a)
Articles intended to be rubbed, poured, sprinkled, or sprayed on, introduced into, or otherwise applied to the human body for cleansing, beautifying, promoting attractiveness, or altering the appearance.
b)
Products used to treat diseases
c)
Substances primarily for ingestion
d)
Tools for surgical procedures
55.
What percentage of the world's sugar production does sugarcane account for
a)
Approximately 20-30%
b)
Approximately 40-50%
c)
Approximately 90-100%
d)
Approximately 70-80%
56.
Which of the following is NOT a natural source of organic materials mentioned in the document
a)
Plants
b)
Animals
c)
Microorganisms
d)
Lab-engineered Compounds
57.
Which of the following is a primary petrochemical
a)
Methanol
b)
Ammonia
c)
Ethylene
d)
Formaldehyde
58.
What are the two primary categories of cosmetic raw materials?
a)
Active ingredients and excipients
b)
Organic and inorganic
c)
Solid and liquid
d)
Natural and synthetic
59.
Which type of cosmetic raw material provides a specific desired effect, such as moisturizing or UV protection?
a)
Active ingredient
b)
Excipient
c)
Solvent
d)
Emulsifier
60.
Which of the following is a common method for testing the stability of cosmetic products?
a)
Accelerated aging tests
b)
Sensory evaluation only
c)
Microbial challenge tests alone
d)
pH measurement only
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