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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3361

Question 61

'Halophilic' bacteria are those that 'love':

Heat
Cold
Salt✔️
Acid

Correct Answer Logic:

They thrive in high-salinity environments like the Dead Sea.

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Physics QUESTION #1056

Question 62

A photon and electron (mass $m$) have same energy $E$. Ratio $\lambda_{photon}/\lambda_{electron}$ is ($c$ = speed of light):

$c\sqrt{\dfrac{2m}{E}}$✔️
$\dfrac{1}{c}\sqrt{\dfrac{E}{2m}}$
$\sqrt{\dfrac{E}{2m}}$
$c\sqrt{2mE}$

Correct Answer Logic:

Photon: $\lambda_{ph}=\frac{hc}{E}$. Electron (non-relativistic): $\lambda_{el}=\frac{h}{\sqrt{2mE}}$. Ratio: $\frac{\lambda_{ph}}{\lambda_{el}}=\frac{hc}{E}\cdot\frac{\sqrt{2mE}}{h}=\frac{c\sqrt{2mE}}{E}=c\sqrt{\frac{2m}{E}}$.

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Boilers Mechanical Engineering QUESTION #2548

Question 63

The principal axes of a cross-section are axes about which:

The moment of inertia is maximum only
The product of inertia is zero AND the moments of inertia are extreme (max/min)✔️
The polar moment of inertia is minimum
All second moments are equal

Correct Answer Logic:

Principal axes are defined by two conditions: (1) $I_{xy}=0$ (product of inertia vanishes), and (2) the second moments $I_x$ and $I_y$ attain their absolute maximum and minimum values, called principal moments of inertia.

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Library Sciences QUESTION #1569

Question 64

Which research method is most appropriate when a librarian aims to measure the level of user satisfaction across a large population of library patrons using a standardized instrument?

Ethnographic observation
Case study
Structured questionnaire survey✔️
Unstructured interview

Correct Answer Logic:

A structured questionnaire survey is the most appropriate method for measuring attitudes, opinions, or satisfaction levels across a large population. It produces quantifiable, comparable data that can be statistically analyzed — suitable for assessing library user satisfaction at scale.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3566

Question 65

The 'Peltate' leaf of 'Podophyllum' is used as a:

Vitamin
Anticancer and Purgative agent✔️
Flavor
Dye

Correct Answer Logic:

Podophyllum resin is used for warts and some cancers.

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Civil / Architecture QUESTION #2365

Question 66

In the design of steel plate girders, the proportioning of the web panel to prevent shear buckling without tension field action requires the shear buckling coefficient $k_v$. For an unstiffened web with $a/h \to \infty$ (no transverse stiffeners), the value of $k_v$ used in calculating the critical shear stress is:

4.0
5.34✔️
6.34
2.0

Correct Answer Logic:

For a web plate with no transverse stiffeners (pure shear panel, $a/h \to \infty$), the shear buckling coefficient is $k_v = 5.34$. When transverse stiffeners are present with aspect ratio $a/h \leq 1$: $k_v = 4.0 + \dfrac{5.34}{(a/h)^2}$. The critical shear stress is $F_{cr} = \dfrac{k_v \pi^2 E}{12(1-\nu^2)(h/t_w)^2}$. AISC uses $k_v = 5.34$ as the baseline for unstiffened webs.

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Accounting & Finance QUESTION #6166

Question 67

Why is the 'Constant Rupee Approach' used in Financial Statement Analysis?

To calculate the precise tax liability
To adjust for the effects of inflation when comparing balance sheets over time✔️
To ensure the Double Entry Principle is maintained
To convert Market Value to Book Value

Correct Answer Logic:

Lesson 03 explains that this approach compares balance sheets at different times by making inflationary adjustments to account for the limitations of historical cost.

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General Abilities QUESTION #4533

Question 68

Simplify: $(2^3)^2$

$2^5$
$2^6$✔️
$2^9$
$4^6$

Correct Answer Logic:

$(b^m)^n = b^{mn}$. So $(2^3)^2 = 2^{3 \times 2} = 2^6 = 64$

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Mathematics QUESTION #1327

Question 69

The exact value of $\int_1^3\dfrac{1}{x^2}\,dx$ is:

$\dfrac{1}{3}$
$\dfrac{2}{3}$✔️
$\dfrac{1}{9}$
$\dfrac{4}{3}$

Correct Answer Logic:

$\int_1^3\dfrac{1}{x^2}\,dx=\left[-\dfrac{1}{x}\right]_1^3=-\dfrac{1}{3}+1=\dfrac{2}{3}$. This is the exact value; the Trapezoidal Rule approximation approaches this as the step size decreases.

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Planning QUESTION #4924

Question 70

In urban design, what does 'human scale' refer to?

The average height of buildings
Design proportions related to human dimensions✔️
The number of people in an area
The walking distance capacity

Correct Answer Logic:

Human scale in urban design refers to designing spaces and buildings with proportions and dimensions that relate comfortably to human body size and perception, creating comfortable, accessible environments.

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Physics QUESTION #378

Question 71

The force required to bend the normally straight path of a particle into a circular path is called __________ force.

Traveling
Bending
Centrifugal
Centripetal✔️

Correct Answer Logic:

Centripetal force causes circular motion

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3048

Question 72

A 'Chemical Incompatibility' results from:

Improper dosing
A reaction like oxidation, reduction, or acid-base reaction✔️
A change in the container material
The drug tasting bad

Correct Answer Logic:

Chemical incompatibility occurs when a chemical reaction takes place between the ingredients.

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Home Economics QUESTION #6269

Question 73

What is the biological value of a protein a measure of?

The amount of nitrogen retained for growth and maintenance✔️
The number of calories per gram of protein
The speed of digestion in the stomach
The total weight of the protein in grams

Correct Answer Logic:

Biological value (BV) measures how efficiently the body utilizes protein from the diet.

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Pharmacokinetics and Pharmacodynamics QUESTION #3849

Question 74

Given $\text{Na}\ M_r = 23$ and $\text{Cl}\ M_r = 35$, what is the sodium ion concentration of a $0.9\%\ \text{w/v}$ sodium chloride solution?

$100\ \text{mmol/L}$
$130\ \text{mmol/L}$
$150\ \text{mmol/L}$✔️
$270\ \text{mmol/L}$

Correct Answer Logic:

$0.9\%\ \text{NaCl} = 9\ \text{g/L}$. $M_r$ of NaCl $= 23 + 35 = 58\ \text{g/mol}$. Moles $= \dfrac{9}{58} = 0.1552\ \text{mol/L} \approx 155\ \text{mmol/L} \approx 150\ \text{mmol/L}$.

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Boilers Mechanical Engineering QUESTION #2436

Question 75

The critical damping coefficient $c_{cr}$ for a spring-mass-damper system is:

$c_{cr} = \sqrt{km}$
$c_{cr} = 2m\omega_n = 2\sqrt{km}$✔️
$c_{cr} = k/\omega_n$
$c_{cr} = m\omega_n^2$

Correct Answer Logic:

Critical damping: $\alpha=\omega_n$ where $\alpha=c/(2m)$. Hence $c_{cr}=2m\omega_n=2m\sqrt{k/m}=2\sqrt{km}$.

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Math Physics Chemistry Biology QUESTION #4308

Question 76

In a normal 28-day menstrual cycle, when would you expect the LH surge to occur?

Days 7–10
Days 11–14✔️
Days 15–18
Days 19–22

Correct Answer Logic:

The LH surge typically occurs around days 11–14 of a 28-day cycle, just before ovulation on day 14. This surge triggers the release of the mature egg from the ovary.

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English QUESTION #8430

Question 77

Identify the correctly spelled word:

Challenge✔️
Chalange
Challenge
Chalang

Correct Answer Logic:

Correct spelling is 'Challenge' (option a).

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Administration QUESTION #9587

Question 78

Schein's model of organizational culture identifies three levels: artifacts, espoused values, and underlying assumptions. A new CEO announces a public commitment to innovation but the organization continues to punish failure. At which level does the real culture reside, and what does this reveal about cultural change management?

At the artifacts level — the innovation posters and speeches are the culture; changing them is sufficient to change the organization
At the underlying assumptions level — the actual culture is the deep, unconscious belief that failure is unacceptable; this is the hardest level to change and requires sustained behavioral intervention to surface and challenge these assumptions✔️
At the espoused values level — the CEO's public commitment is the culture; it needs to be reinforced through formal policy before it becomes real
At the artifacts level — because only observable behaviors constitute organizational culture; psychological assumptions are outside management's control

Correct Answer Logic:

Schein's model is hierarchical: artifacts (visible) reflect espoused values (stated beliefs) which may mask underlying assumptions (unconscious, taken-for-granted beliefs). When behavior contradicts stated values, the underlying assumptions are controlling conduct. Punishing failure despite 'valuing innovation' reveals the deep assumption that failure is dangerous — the hardest cultural level to change because it is rarely articulated or examined.

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