Comprehensive Guide: Model Question
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SEE Science re-exam solutions
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PABSON question paper with answer key
The pdf attached here is for SEE PABSON Pre Qualifying question paper of science subject 2081. The answer of the question with each marking scheme provide the insights of scoring good marks in final examination.
PABSON Science pre qualifying question paper
The pdf solution for PABSON science pre qualifying question paper is provided here. If you find any errors, feel free to reach out to me by leaving a sweet comment. Happy Learning!
- Tick () the correct alternative.
-
Which of the following binary sequences represents a memory size of
1 byte?
[1]
(i) 000Ans: (ii) 00000000
(ii) 00000000
(iii) 10000
(iv) 000001 -
Which of the following groups of organisms possess cell walls
within their cellular structures?
[1]
(i) Mushroom, Cycas, RicciaAns: (i) Mushroom, Cycas, Riccia
(ii) Riccia, Amoeba, Yeast
(iii) Mushroom, Hydra, Mustard
(iv) Sea cucumber, Cucumber, Pumpkin -
Which of the following genetic codes is indicative of a female
individual?
[1]
(i) 44 + XYAns: (ii) 44 + XX
(ii) 44 + XX
(iii) 22 + X
(iv) 22 + Y -
Anjit exhibits symptoms such as joint swelling and bodily
discomfort following the consumption of red meat and pulses.
Identify the ailment from which he is suffering.
[1]
(i) DiabetesAns: (ii) Uric acid
(ii) Uric acid
(iii) Hemophilia
(iv) Anemia -
Which of the following statements most accurately characterizes the
phenomenon of falling objects on Earth?
1
(i) Objects fall at a constant speed.Ans: (ii) Objects fall at an increasing speed.
(ii) Objects fall at an increasing speed.
(iii) Objects fall with a decreasing speed.
(iv) Objects fall with no speed.
-
What would be the weight of a body with a mass of 40 kg positioned
12,000 kilometers from the center of the Earth, which has a mass of
6×1024 kg?
1
(i) 350 NAns: (iii) 111.16 N
(ii) 120 N
(iii) 111.16 N
(iv) 150 N
-
Which of the following groups of substances or phenomena exemplifies
total internal reflection?
1
(i) Spectacles, camera, hand lensAns: (iii) Endoscope, mirage, optical fiber
(ii) Rainbow, optical fiber, mirage
(iii) Endoscope, mirage, optical fiber
(iv) Mirror, optical fiber, camera
-
Which of the following statements is accurate?
1
(i) The electric current produced by a cell maintains a constant value.Ans: (ii) The frequency of the electric current generated by a cell remains constant.
(ii) The frequency of the electric current generated by a cell remains constant.
(iii) The brightness of a bulb fluctuates when powered by a dynamo.
(iv) The direction of the electric current produced by a cell is subject to constant change.
-
In which group of modern periodic table is alkaline earth metals
kept?
1
(i) IAAns: (ii) IIA
(ii) IIA
(iii) VII A
(iv) VIA
-
Below is a statement accompanied by two arguments:
Statement 1: Detergent is referred to as a "soap-less soap."
Argument 1: It possesses cleaning properties akin to soap, yet its chemical composition differs.
Argument 2: Unlike soap, it does not produce lather in hard water.
i) The statement and Argument 2 are correct, but Argument 1 is incorrect.
ii) The statement and Argument 2 are incorrect, but Argument 1 is correct.
iii) The statement and Argument 1 are correct, but Argument 2 is incorrect.
iv) The statement and Argument 1 are incorrect, while Argument 2 is correct. [1]
Ans: The correct option is (iii). The statement and Argument 1 are correct, but Argument 2 is incorrect.
-
Which of the following binary sequences represents a memory size of
1 byte?
[1]
- Very Short Answer Questions:
-
What is your interpretation of the concept of digital
citizenship?
[1]
Ans: Digital citizenship refers to the responsible and ethical use of technology. It encompasses understanding digital rights, responsibilities, and etiquette. -
State the law of floatation? [1]
Ans: The law of floatation states that a body will float in a fluid if the weight of the fluid displaced by the immersed part of the body is equal to the weight of the body. -
What is meant by one calorie heat?
[1]
Ans: One calorie heat is the amount of heat required to raise the temperature of 1 gram of water by 1 degree Celsius. -
When a beam of white light enters a prism, it separates into the
spectrum of colours. Write its cause.
[1]
Ans: The separation of white light into its spectrum of colors when it enters a prism is due to the phenomenon of dispersion. Each color of light has a different wavelength and is refracted at a slightly different angle as it passes through the prism. -
Propose a method for enhancing the intensity of the magnetic field
generated by an electromagnet.
[1]
Ans: To enhance the intensity of the magnetic field generated by an electromagnet, you can increase the current flowing through the coil, increase the number of turns in the coil, or use a core material with higher permeability, such as iron or ferrite. -
Illustrate one practical application of gravitational force in
everyday life and its significance.
[1]
Ans: One practical application of gravitational force is walking. The gravity pulls us towards the earth's surface, which allows us to stay on ground, and provides the necessary traction to walk. Without gravity, it would be very difficult to move. -
Identify the primary ore utilized for the extraction of zinc in
metallurgy.
[1]
Ans: The primary ore utilized for the extraction of zinc is zinc blende (also known as sphalerite). -
Rationalize why ethylene is classified as an unsaturated
hydrocarbon from a molecular perspective.
[1]
Ans: Ethylene is classified as an unsaturated hydrocarbon because it contains a carbon-carbon double bond (C=C). This double bond means that the carbon atoms are not bonded to the maximum number of hydrogen atoms possible, making it unsaturated. Unsaturated hydrocarbons have multiple bonds between carbon atoms. -
Provide the IUPAC nomenclature for the compound commonly known as
glycerol.
[1]
Ans: The IUPAC nomenclature for glycerol is propane-1,2,3-triol.
-
What is your interpretation of the concept of digital
citizenship?
[1]
-
In the context of a scientific experiment, the independent variable
is subject to manipulation, whereas the dependent variable remains
unaltered. Provide a justification for this distinction by
illustrating with a pertinent example.
[2]
Ans: In a scientific experiment, the independent variable is the one that is intentionally changed or manipulated by the researcher to observe its effect on another variable. The dependent variable, on the other hand, is the one that is being measured or observed and is expected to change in response to the manipulation of the independent variable. For example, in an experiment to study the effect of fertilizer on plant growth, the amount of fertilizer is the independent variable (manipulated by the researcher), and the height of the plant is the dependent variable (measured to see if it changes due to fertilizer). -
Identify one characteristic that is common and one characteristic
that differs between the organisms depicted in the provided
figure.
[2]
Ans: Looking at the given figure, both the organisms (dolphin and shark) are aquatic animals and have streamlined bodies, which is a common characteristic.
One key difference is that the dolphin is a mammal, while the shark is a fish. Dolphins have lungs and give birth to live young, while sharks have gills and lay eggs or give birth to live young depending on the species. -
Enumerate two similarities that exist between the classes Aves and
Reptilian.
[2]
Ans: Two similarities between Aves (birds) and Reptilia (reptiles) are:
(1) Both classes are vertebrates, meaning they have a backbone or spinal column and
(2) both classes lay amniotic eggs (eggs with a shell and special membranes for the developing embryo) and have a common ancestry. -
Detail the responsibilities undertaken by worker bees during the
age ranges of seven to eleven days and twelve to seventeen days.
[2]
Ans: Worker bees undertake different responsibilities based on their age. During the age of seven to eleven days, they primarily serve as nurse bees, taking care of the developing larvae. They feed them royal jelly and other secretions. From twelve to seventeen days, worker bees transition to becoming builders and comb makers. They produce wax scales from their bodies and use them to build honeycombs. They also begin to take short orientation flights around the hive.