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Bio-Technology QUESTION #10584

In a fluidised bed bioreactor, the minimum fluidisation velocity depends on:

Only the feed substrate concentration
Particle density, particle diameter, and liquid viscosity✔️
The volumetric mass transfer coefficient $k_La$ only
The impeller tip speed and dissolved oxygen

Correct Answer Logic:

The minimum fluidisation velocity $U_{mf}$ — the superficial liquid velocity needed to just suspend settled particles — depends on: (1) density difference between solid and liquid ($\rho_p - \rho_L$), (2) particle diameter $d_p$, and (3) liquid viscosity $\mu_L$. The Ergun equation or its simplified forms (e.g. Wen and Yu) are used to calculate $U_{mf}$. Fluidised beds are used for immobilised enzyme and cell reactors.

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English QUESTION #8447

Question 2

Is he eligible _______ this scholarship?

with
of
at
for✔️

Correct Answer Logic:

'Eligible for' is correct.

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Accounting & Finance QUESTION #6112

Question 3

Jaime's data: Capital start $14,000; Capital end $12,300; Loan received $4,000; Cash drawings $17,200; Private phone charges paid by business $300. What was the profit for the year?

$11,800
$15,500
$15,800✔️
$19,200

Correct Answer Logic:

Option C ($15,800) is correct.

Total drawings = Cash drawings $17,200 + Private phone $300 = $17,500

The loan is a liability, not capital introduced.

Profit = Closing capital + Drawings − Opening capital = $12,300 + $17,500 − $14,000 = $15,800

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Maths QUESTION #4515

Question 4

Simplify: $2^3 \times 2^4$

$2^{12}$
$2^7$✔️
$4^7$
$2^{64}$

Correct Answer Logic:

Using law of exponents: $b^m \times b^n = b^{m+n}$. So $2^3 \times 2^4 = 2^{3+4} = 2^7$

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General Knowledge QUESTION #11551

Question 5

How many worksheets are present by default in a new workbook in older versions of Excel?

2
3✔️
4
5

Correct Answer Logic:

In MS Excel 2010 and earlier, a new workbook contained 3 sheets (Sheet1, Sheet2, Sheet3) by default. Excel 2013+ changed this to 1 sheet per workbook. The default count can be customised in Excel Options → General → 'Include this many sheets.' Sheets can be added or deleted at any time.

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HR and Management QUESTION #6450

Question 6

In the context of HRM challenges, 'consistency' is particularly important in:

Marketing and branding decisions
Compensation and promotion decisions✔️
Technology adoption choices
Customer service protocols

Correct Answer Logic:

HR policies help maintain consistency and equity, which is particularly important in compensation and promotion decisions. Without HR department coordination, salary structures become uneven and unfair, and promotion decisions may be handled inequitably.

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MCQs Section QUESTION #4850

Question 7

Choose the word nearly similar in meaning to "CAJUN"

French-Canadian descendant✔️
American Indian
Native of the Everglades
Early inhabitant of the Bahama Islands

Correct Answer Logic:

Cajun refers to a member of a group of people in Louisiana descended from French-speaking Acadian immigrants who were expelled from Canada in the 18th century.

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Disaster Management QUESTION #6543

Question 8

In designing climate-resilient reconstruction, what represents the most comprehensive approach to long-term sustainability?

Using stronger materials
Integrating green building standards, renewable energy, risk-informed planning, and environmental impact assessments✔️
Building on higher ground
Faster construction timelines

Correct Answer Logic:

Section 10.3 advocates for green building standards, renewable energy, risk assessments, and environmental impact studies. Comprehensive climate-resilient reconstruction addresses multiple dimensions: structural resilience, environmental sustainability, and reduced carbon footprint.

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Reading and Writing (Module-1) QUESTION #10415

Question 9

The scholar's writing was admired for being ------- , conveying complex ideas in only a few well-chosen words.

verbose
terse✔️
rambling
redundant

Correct Answer Logic:

Conveying complex ideas in 'a few well-chosen words' is 'terse.'

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Physical Education QUESTION #6798

Question 10

During the Renaissance, the 'Reawakening' of physical education was primarily driven by which philosophical shift?

The rejection of intellectualism in favor of raw physical strength
The integration of physical training as a tool for character and moral development✔️
A return to the medieval view of the body as a vessel of sin
The professionalization of sports for commercial entertainment

Correct Answer Logic:

The Renaissance marked a shift where educators began to see the body and mind as an integrated whole, using physical training to develop the 'universal man'.

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English Literature QUESTION #10758

Question 11

Arundhati Roy was awarded the Booker Prize for her novel:

The Man Who Failed
The God of Small Things✔️
The Apes of God
The Nude Before God

Correct Answer Logic:

Arundhati Roy won the Booker Prize in 1997 for her debut novel The God of Small Things. Set in Kerala, it explores the lives of Ammu and her dizygotic (fraternal) twins Rahel and Estha, dealing with forbidden love, caste, politics, and memory. It remains one of the best-selling Man Booker Prize winners of all time. Roy's second novel, The Ministry of Utmost Happiness, appeared in 2017.

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Nursing QUESTION #9147

Question 12

A woman at 24 weeks gestation is diagnosed with preterm premature rupture of membranes (PPROM). Which combination of interventions is MOST evidence-based?

Immediate induction of labor to prevent infection
Hospitalization + antibiotics (erythromycin) + antenatal corticosteroids + nifedipine tocolysis✔️
Oral antibiotics at home with weekly follow-up
Cerclage placement and progesterone supplementation only

Correct Answer Logic:

PPROM = Rupture of membranes before 37 weeks gestation without labor.

Evidence-based management bundle (ACOG/RCOG):

Intervention	Rationale	Drug/Dose
Hospitalization	Monitor for chorioamnionitis, cord prolapse	—
Antibiotics	Prolong latency period, reduce chorioamnionitis	Erythromycin 250 mg QID × 10 days (avoid amoxicillin-clavulanate — associated with NEC)
Antenatal corticosteroids	Fetal lung maturity (if 24–34 weeks)	Betamethasone 12 mg IM × 2 doses, 24 hr apart
MgSO₄ neuroprotection	If <32 weeks, reduces cerebral palsy	$4\,\text{g}$ IV loading dose
GBS prophylaxis	If GBS status unknown	Penicillin G IV

Tocolysis: Short-term tocolysis (48 hr) to allow steroids to act, but not for prolonged tocolysis as it may mask infection signs. Nifedipine or indomethacin used.

Chorioamnionitis signs (mandate delivery regardless of GA): fever, uterine tenderness, fetal tachycardia, maternal tachycardia, foul-smelling liquor, elevated CRP/WBC.

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Aptitude QUESTION #10992

Question 13

A rectangular prism has dimensions $l > w > h$. When viewed perpendicular to its largest face, the projected area is $60$ sq.units. When viewed perpendicular to its medium face, the projected area is $40$ sq.units. When viewed perpendicular to its smallest face, the projected area is $24$ sq.units. What is the volume of the prism?

$120$
$180$
$240$✔️
$360$

Correct Answer Logic:

Projected areas: $wh = 24$, $lh = 40$, $lw = 60$. Multiplying: $(lwh)^2 = 24 \times 40 \times 60 = 57600$. So $lwh = \sqrt{57600} = 240$. Volume = $240$ cubic units.

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Security Measures to Maintain Law and Order QUESTION #937

Question 14

What is the function of a 'Security Awareness Program' for non-security staff?

To train them as guards
To teach them to recognize and report threats✔️
To reduce their working hours
To monitor their productivity

Correct Answer Logic:

Every airport employee acts as an extra "eyes and ears" when they are trained to recognize suspicious activity.

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Physics QUESTION #7057

Question 15

A $2 \text{ kg}$ sample of monoatomic gas is maintained at a pressure of $4 \times 10^4 \text{ N/m}^2$ with a density of $8 \text{ kg/m}^3$. What is the order of the gas's internal energy due to thermal motion?

$10^3 \text{ J}$
$10^5 \text{ J}$
$10^4 \text{ J}$✔️
$10^6 \text{ J}$

Correct Answer Logic:

The internal energy $U$ of a monoatomic gas is $U = \frac{3}{2} nRT = \frac{3}{2} PV$.

First, find the volume $V$ using mass and density: $V = \frac{\text{mass}}{\text{density}} = \frac{2}{8} = 0.25 \text{ m}^3$.

$U = \frac{3}{2} \times (4 \times 10^4) \times 0.25 = 1.5 \times 10^4 = 15000 \text{ J}$.

The order of magnitude is $10^4 \text{ J}$.

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Civil Engineering QUESTION #6614

Question 16

A steel rod of area $A$ and length $L$ is fixed at both ends. If the temperature increases by $\Delta T$, the thermal stress induced is:

$E \alpha \Delta T$✔️
$E \alpha \Delta T / L$
$A E \alpha \Delta T$
Zero, as it is free to expand

Correct Answer Logic:

Thermal strain $\epsilon = \alpha \Delta T$. Since expansion is prevented (fixed ends), the stress is $\sigma = E \epsilon = E \alpha \Delta T$.

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English QUESTION #2781

Question 17

What does the PHRASAL VERB 'BREAK DOWN' mean?

To demolish a building forcefully
To stop functioning / to lose emotional control✔️
To reduce the price of something
To separate from a group

Correct Answer Logic:

'Break down' is a phrasal verb with two main meanings: (1) a machine stops working, or (2) a person loses emotional control and cries. Example: 'The car broke down on the highway.'

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Mathematics QUESTION #7429

Question 18

If the lines $\frac{x-2}{1} = \frac{y-3}{1} = \frac{z-4}{-k}$ and $\frac{x-1}{k} = \frac{y-4}{2} = \frac{z-5}{1}$ are coplanar, then k can have:

any value
exactly one value
exactly two values✔️
exactly three values

Correct Answer Logic:

For two lines to be coplanar, the scalar triple product of their direction ratios and the vector joining points on the lines must be zero. The direction ratios are $(1, 1, -k)$ and $(k, 2, 1)$. A point on the first line is $(2, 3, 4)$ and on the second is $(1, 4, 5)$. The vector joining them is $(-1, 1, 1)$. Setting up the determinant: $\begin{vmatrix} -1 & 1 & 1 \\ 1 & 1 & -k \\ k & 2 & 1 \end{vmatrix} = 0$. Expanding: $-1(1+2k) - 1(1+k^2) + 1(2-k) = 0$, which simplifies to $k^2 + 3k = 0$, giving $k = 0$ or $k = -3$. Thus, k has exactly two values.

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Accounting & Finance QUESTION #9635

Question 19

Interest on a loan taken specifically to construct a building is normally treated as:

Revenue expenditure, charged to P&L in the year incurred
Capital expenditure, added to the cost of the building until it is completed and ready for use✔️
Financial expenditure, shown separately in P&L under financial charges throughout the loan period
Deferred expenditure, spread over the life of the building

Correct Answer Logic:

Interest on a loan taken to purchase or construct an asset is an exception to the general rule. Such interest is capitalized (added to the cost of the asset) up to the date the asset is brought into use. This is consistent with the principle that all costs incurred to bring an asset to its intended use are part of its cost. After the asset is ready, subsequent interest is treated as a revenue expense.

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Physics QUESTION #4400

Question 20

A phase difference of $90°$ is equal to:

$\pi$ radians
$\dfrac{\pi}{2}$ radians✔️
$\pi n$ radians
$\dfrac{\pi}{4}$ radians

Correct Answer Logic:

Converting degrees to radians: $\theta_{rad} = \theta_{deg} \times \dfrac{\pi}{180}$. So $90° = 90 \times \dfrac{\pi}{180} = \dfrac{\pi}{2}$ radians.

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