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Library Sciences QUESTION #1503

Which classification system uses a purely faceted approach with the PMEST formula, developed by S.R. Ranganathan?

Dewey Decimal Classification
Library of Congress Classification
Colon Classification✔️
Universal Decimal Classification

Correct Answer Logic:

The Colon Classification (CC), developed by S.R. Ranganathan, is the most prominent example of a purely faceted classification system. It analyzes subjects into fundamental categories: Personality, Matter, Energy, Space, and Time (PMEST).

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Physical Education QUESTION #6803

Question 862

The transition from 'Gymnastics' to 'Physical Education' in the late 19th century signified a shift toward:

Solely focusing on muscular hypertrophy
A broader scientific and educational framework for human movement✔️
Ending the inclusion of physical activity in schools
A return to ancient gladiatorial combat styles

Correct Answer Logic:

This shift represented the professionalization of the field, incorporating physiology, psychology, and pedagogy into movement science.

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Physics QUESTION #987

Question 863

A transparent film of refractive index 2.0 is coated on a glass slab of refractive index 1.45. What is the minimum thickness of the film for maximum transmission of green light of wavelength 550 nm?

137.5 nm✔️
275 nm
94.8 nm
68.7 nm

Correct Answer Logic:

For maximum transmission (minimum reflection), destructive interference of reflected waves is needed. Since light goes from lower $n$ (air) to higher $n$ (film), and film $n >$ glass $n$, only one phase reversal occurs. Condition: $2\mu t = \lambda \Rightarrow t = \frac{\lambda}{2\mu} = \frac{550}{2\times2} = 137.5$ nm.

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Nursing QUESTION #9235

Question 864

In Increased Intracranial Pressure (ICP) management, a patient's ICP is $22 \text{ mmHg}$ and MAP is $90 \text{ mmHg}$. What is the Cerebral Perfusion Pressure (CPP) and is it adequate?

$\text{CPP} = 68 \text{ mmHg}$ — adequate (target $\geq 60 \text{ mmHg}$)✔️
$\text{CPP} = 112 \text{ mmHg}$ — dangerously high
$\text{CPP} = 45 \text{ mmHg}$ — inadequate, cerebral ischemia likely
$\text{CPP} = 58 \text{ mmHg}$ — borderline, immediate intervention needed

Correct Answer Logic:

Correct Answer: A — CPP = 68 mmHg, adequate

Formula:
\[\text{CPP} = \text{MAP} - \text{ICP}\]
\[\text{CPP} = 90 - 22 = 68 \text{ mmHg}\]

Target values in TBI management (Brain Trauma Foundation):

CPP target: $60 - 70 \text{ mmHg}$
ICP target: $< 20 \text{ mmHg}$
MAP target: $\geq 80 \text{ mmHg}$

ICP management interventions:

Head of bed elevation $30°$
Hyperosmolar therapy: Mannitol $0.25 - 1 \text{ g/kg}$ IV or hypertonic saline (3%)
Controlled hyperventilation: target $\text{PaCO}_2 = 35 \text{ mmHg}$ (temporary)
Sedation and analgesia
Avoid hyperthermia, hypoxia, hypotension
CSF drainage via ventriculostomy

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Math Physics Chemistry Biology QUESTION #4214

Question 865

If a colorblind lady marries a normal man, their children will be:

Normal daughters and normal sons
Normal sons and carrier daughters
Colorblind sons and carrier daughters✔️
Colorblind sons and colorblind daughters

Correct Answer Logic:

Colorblind mother $\text{(X}^c\text{X}^c\text{)}$ × Normal father $\text{(X}^+\text{Y)}$ produces carrier daughters and colorblind sons.

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Chemistry QUESTION #7789

Question 866

Work done (in atm·dm³) when 1 mol ideal gas expands from 15 dm³ to 20 dm³ against constant external pressure 2 atm:

-10 atm·dm³✔️
-5 atm·dm³
5 atm·dm³
10 atm·dm³

Correct Answer Logic:

$W = -P_{\text{ext}} \Delta V = -2 \times (20-15) = -2 \times 5 = -10\ \mathrm{atm·dm³}$. Negative sign indicates work done by the system (expansion).

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3100

Question 867

Which blood vessel carries deoxygenated blood from the heart to the lungs?

Superior Vena Cava
Aorta
Pulmonary Artery✔️
Pulmonary Vein

Correct Answer Logic:

The pulmonary artery is the only artery that carries deoxygenated blood.

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Paper-II (Pharmacology and Social Behaviour, Law & Ethics and Computer Sciences) QUESTION #5775

Question 868

Omeprazole heals peptic ulcers by blocking:

H2 Histamine Receptors
Muscarinic Receptors
The H+/K+ ATPase (Proton Pump)✔️
Prostaglandin Receptors

Correct Answer Logic:

PPIs like Omeprazole irreversibly block the gastric proton pump.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3442

Question 869

'Vitamin B3' (Niacin) deficiency results in the '3 Ds': Dermatitis, Diarrhea, and Dementia. This disease is:

Beri-beri
Pellagra✔️
Scurvy
Rickets

Correct Answer Logic:

Pellagra is often associated with corn-based diets.

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Education QUESTION #7609

Question 870

The development of manual skills and physical coordination in learners is focused on which domain?

Cognitive domain
Affective domain
Psychomotor domain✔️
None of these

Correct Answer Logic:

The psychomotor domain involves physical movement, coordination, and use of motor skills, including manual dexterity and hands-on abilities.

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Ability / HR / Governance / Special Education QUESTION #1922

Question 871

Under Rule 14(2) no Division shall consult the Attorney General except through which Division?

The Establishment Division
The Cabinet Division
The Law and Justice Division in accordance with its prescribed procedure✔️
The Finance Division

Correct Answer Logic:

Rule 14(2) categorically states that no Division shall consult the Attorney General except through the Law and Justice Division and in accordance with the procedure laid down by that Division — subject only to the specific arbitration exception.

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Biology Zoology Botany QUESTION #1382

Question 872

Which of the following is NOT a characteristic of algae?

Autotrophic
Multicellular
Lack true roots, stems, and leaves
All algae are microscopic✔️

Correct Answer Logic:

Not all algae are microscopic — this is the FALSE statement. Giant kelp (Macrocystis pyrifera) can grow up to 60 metres long. Algae are autotrophic (mostly), lack true roots/stems/leaves (they have thallus), and can be unicellular or multicellular. The statement that 'all algae are microscopic' is incorrect.

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Verbal Reasoning QUESTION #8102

Question 873

$t$ is a positive integer and $\dfrac{4}{7} = \dfrac{t}{s}$.

Compare:

Column A: $s$

Column B: $7$

Column A is greater
Column B is greater
The two quantities are equal
The relationship cannot be determined from the information given✔️

Correct Answer Logic:

From $\dfrac{4}{7} = \dfrac{t}{s}$, we get $s = \dfrac{7t}{4}$.

Since $t$ is a positive integer, different values of $t$ yield different results:

If $t = 4$: $s = 7$ → Column A $=$ Column B (equal)
If $t = 8$: $s = 14 > 7$ → Column A is greater
If $t = 2$: $s = 3.5 < 7$ → Column B is greater

Since the result changes depending on $t$, the relationship cannot be determined from the information given.

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General Knowledge QUESTION #8264

Question 874

Which key on a standard keyboard captures a screenshot of the entire screen and copies it to the Clipboard?

All Key
Shift Key
Print Screen Key✔️
None of these

Correct Answer Logic:

The Print Screen key copies the current screen image to the Clipboard.

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General Knowledge QUESTION #8692

Question 875

When was the People's Republic of China founded?

1947
1948
1949✔️
None of above

Correct Answer Logic:

Communist China was founded on October 1, 1949.

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Statistics QUESTION #2008

Question 876

In a Randomized Complete Block (RCB) design with $b = 9$ blocks and $t = 4$ treatments, the error degrees of freedom is:

35
32
24✔️
27

Correct Answer Logic:

Error df in RCBD $= (b-1)(t-1) = (9-1)(4-1) = 8 \times 3 = 24$. Equivalently, total df $= bt - 1 = 35$, blocks df $= b - 1 = 8$, treatments df $= t - 1 = 3$, so error df $= 35 - 8 - 3 = 24$.

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Dairy Food Science and Technology QUESTION #5989

Question 877

Sodium hexametaphosphate and trisodium citrate are used as emulsifying salts in processed cheese. Their mechanism involves:

Acting as antimicrobial agents preventing mold growth
Chelating $\text{Ca}^{2+}$ from the casein-calcium phosphate complex, solubilizing and dispersing casein proteins to form a stable protein-fat emulsion upon heating ('creaming of casein')✔️
Lowering the $\text{pH}$ to improve acid-gel formation
Crosslinking casein proteins through phosphate bridges

Correct Answer Logic:

Emulsifying salts in processed cheese work via $\text{Ca}^{2+}$ chelation (sequestration). By removing $\text{Ca}^{2+}$ from casein-calcium-phosphate linkages, they break down the protein matrix, allowing individual casein molecules to hydrate, unfold, and interact with fat at the interface during heating ('creaming of casein').

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Disaster Management QUESTION #6514

Question 878

A district experiences recurring urban flooding despite adequate drainage infrastructure. Which combination of interventions would most effectively address the root causes?

Increasing drainage capacity and building flood walls
Implementing risk-sensitive zoning, sustainable urban drainage systems, and nature-based solutions✔️
Relocating vulnerable populations to higher ground
Establishing emergency response teams only

Correct Answer Logic:

Section 8.3 emphasizes risk-sensitive urban planning, sustainable drainage systems, and green infrastructure. This addresses root causes rather than symptoms, combining structural measures with ecosystem-based approaches and proper land-use planning.

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General Science and Ability QUESTION #191

Question 879

Maximum amount of carbohydrates are obtained from:

Nuts
Plant oil
Whole grain food✔️
None of these

Correct Answer Logic:

Whole grains are primary sources of complex carbohydrates.

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Constitutional Law QUESTION #5835

Question 880

A state passes a law that restricts the right to vote in local school board elections to only those individuals who own property within the district. Is this law constitutional?

Yes, because property owners have a greater stake in school funding.
Yes, because the state has a rational basis to limit voting to 'interested' parties.
No, because voting is a fundamental right and the restriction fails strict scrutiny.✔️
No, because it violates the 24th Amendment's prohibition on poll taxes.

Correct Answer Logic:

Under Kramer v. Union Free School District, restrictions on the right to vote in general-interest elections (like school boards) are subject to strict scrutiny. A property-ownership requirement is not narrowly tailored to a compelling state interest.

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