Reading Mode - Questions

Bohr's energy formula: $E_n = \dfrac{E_1}{n^2}$

Given $E_2 = -328$ kJ/mol, so $E_1 = -328 imes 4 = -1312$ kJ/mol.

$E_4 = \dfrac{-1312}{16} = -82$ kJ/mol

Key point: as $n$ increases, energy becomes less negative — outer orbits are less tightly bound.

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Reading and Writing (Module-1) QUESTION #5449

Question 4224

During a 2021 launch, Rocket Labs' Electron rocket experienced a failure: second-stage booster shut down after ignition. ____ instead of downplaying it, the CEO publicly apologized.

Afterward✔️
Additionally
Indeed
Similarly

Correct Answer Logic:

"Afterward" indicates the logical sequence of events.

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Physics QUESTION #1032

Question 4225

In some units, time $t$ and position $x$ of a particle satisfy $t = x^2 + x$. The acceleration of the particle is:

$+\dfrac{2}{(x+1)^3}$
$+\dfrac{2}{2x+1}$
$-\dfrac{2}{(x+2)^3}$
$-\dfrac{2}{(2x+1)^3}$✔️

Correct Answer Logic:

$\frac{dt}{dx} = 2x+1\Rightarrow v = \frac{dx}{dt} = \frac{1}{2x+1}$. Acceleration: $a = \frac{dv}{dt} = \frac{dv}{dx}\cdot v = \frac{-2}{(2x+1)^2}\cdot\frac{1}{2x+1} = \frac{-2}{(2x+1)^3}$.

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Math Physics Chemistry Biology QUESTION #4223

Question 4226

Which competitive inhibitor blocks the enzyme responsible for bacterial cell wall synthesis?

Sulphonamide
Streptomycin
Tetracycline
Penicillin✔️

Correct Answer Logic:

Penicillin inhibits cell wall synthesis enzymes.

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English QUESTION #8446

Question 4227

Industrious means:

Successful
Sensible
Diligent✔️
Labourer

Correct Answer Logic:

Industrious means hard-working and diligent.

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Education QUESTION #6780

Question 4228

In a Table of Specification, after calculating that 25% of instructional time was devoted to Topic A, a teacher allocates 13 marks out of 50 total marks to Topic A. Is this allocation within acceptable limits?

No, the allocation must be exact — 12.5 marks and no rounding is permitted
Yes, the acceptable tolerance is ±2 percentage points; 13/50 = 26%, which is within ±2% of 25%✔️
No, the allocation should always round down to avoid over-testing any topic
Yes, but only if Topic A contains application-level questions

Correct Answer Logic:

The Table of Specification guideline states: Percent of instruction time = Percent of examination value (within ±2 percent). Topic A received 25% instructional time. Allocated: 13/50 = 26%. Since 26% is within ±2% of 25%, this is acceptable. If it were 28% or above (or 22% or below), revision would be needed.

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Quantitative Reasoning QUESTION #8150

Question 4229

The conductor's chosen tempo during the opera's most celebrated aria seemed _______, bearing no apparent connection to what had come before.
(Select the best word. Note: two words produce sentences alike in meaning — choose the most accurate.)

arbitrary✔️
cautious
compelling
exacting

Correct Answer Logic:

The blank describes a tempo that has 'no necessary relation to what had gone before' — it was chosen without apparent reason or rule. Arbitrary means based on random choice rather than reason — perfect. 'Capricious' is the synonym pair in the original. 'Cautious' means careful. 'Compelling' means forceful/convincing — opposite of purposeless. 'Exacting' means demanding precision.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3251

Question 4230

The 'Pleural Cavity' is a fluid-filled space that:

Protects the heart
Protects the lungs and reduces friction during breathing✔️
Contains the stomach
Stores air

Correct Answer Logic:

The pleura allow the lungs to slide smoothly against the chest wall.

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Biology Zoology Botany QUESTION #10788

Question 4231

The myelin sheath of peripheral nerve fibres is derived from which cells?

Microglia
Neuroglial cells
Schwann cells✔️
Nerve cells

Correct Answer Logic:

Schwann cells are the glial cells of the peripheral nervous system (PNS) that produce the myelin sheath by wrapping their plasma membrane repeatedly around the axon. In the central nervous system (CNS), myelin is produced by oligodendrocytes. Microglia are the immune cells of the CNS; neuroglial cells is a general term; nerve cells (neurons) do not produce myelin.

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Dairy Food Science and Technology QUESTION #5964

Question 4232

In dairy plant automation, SCADA systems are used for:

Microbial testing of milk samples
Supervisory Control and Data Acquisition — monitoring and controlling pasteurization temperature, flow rates, CIP chemical concentrations, and tank levels in real time✔️
Designing the layout of a dairy processing plant
Nutritional analysis of dairy products

Correct Answer Logic:

SCADA systems in modern dairy plants provide: real-time monitoring of critical control parameters (pasteurization temp/time, flow rates, pressures); automated control of processing sequences; alarming for out-of-specification conditions; data logging for regulatory compliance; and CIP sequence control.

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Chemistry QUESTION #4344

Question 4233

The element with smallest value of ionization energy is:

U
Al
Ca
Ba✔️

Correct Answer Logic:

Ionization energy decreases down a group and across a period (left to right increases). Ba (Barium) is in Group 2, Period 6, so it has the lowest ionization energy among the given options.

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Math (Module-1) QUESTION #5391

Question 4234

A town's population is predicted to increase by $4\%$ every $n$ months. If the growth is modeled by the expression $P(1.04)^{\frac{t}{12}}$ where $t$ is in months, what is the value of $n$?

$8$
$12$✔️
$18$
$72$

Correct Answer Logic:

In exponential growth $A = P(1+r)^{\frac{t}{n}}$, the denominator $n$ represents the period of time required for the growth $r$ to occur. Here $n=12$.

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Planning QUESTION #4984

Question 4235

In site planning for drainage, what is the recommended minimum slope for paved surfaces?

0.5%
1.0%
2.0%✔️
5.0%

Correct Answer Logic:

Minimum 2% (1:50) slope is recommended for paved surfaces to ensure effective surface water drainage without ponding, while being gentle enough for accessibility and comfortable pedestrian movement. Steeper slopes may cause erosion or discomfort.

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MCQs Section QUESTION #4884

Question 4236

Which word is opposite to "IGNOBLE"

Lowly
Vile
Good
Noble✔️

Correct Answer Logic:

Ignoble means not honorable in character or purpose. Its antonym is Noble, meaning having high moral qualities and good character.

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Accounting & Finance QUESTION #6214

Question 4237

A company engaged in 'Production and Manufacturing' is required to maintain records under Section 230. If the company fails to maintain a 'Production Record' as ordered by the Commission, who is primarily liable?

The External Auditor
The Directors including Chief Executive and Chief Accountant✔️
The Shareholders
The Securities and Exchange Commission

Correct Answer Logic:

Section 230 specifically holds the directors, chief executive, and chief accountant liable for the failure to keep proper books of account, including production records.

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CISA QUESTION #1776

Question 4238

Fill in the blanks: The two primary audit test types are __________ and __________, using __________ sampling methods respectively.

Substantive tests; compliance tests; variable and attribute✔️
Compliance tests; substantive tests; variable and discovery
Predictive tests; compliance tests; stop-and-go and difference estimation
Integrity tests; compliance tests; stratified mean and unstratified mean

Correct Answer Logic:

The two main audit test types are substantive tests and compliance tests. Substantive testing uses variable sampling to verify the accuracy and integrity of transactions. Compliance testing uses attribute sampling to confirm the presence and consistent application of controls.

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Tourism & Hospitality Management QUESTION #1590

Question 4239

The Introduction to Tourism & Hospitality course covers 'Time Zones and Climate' under which module?

Module 3: Hospitality Industry Characteristics
Module 2: Travel, Accommodation, and Infrastructure
Module 1: Definitions, History, Scope, Types and Forms of Tourism✔️
Module 5: Hotel Development Process

Correct Answer Logic:

Module 1 of the Introduction to Tourism & Hospitality course covers foundational topics including Definitions, History, Scope, Types and Forms, Basis and Limits of Tourism, Tourism Promotion, and specifically includes 'Main Global Features, Time Zones and Climate' as contextual global knowledge.

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Maths QUESTION #4497

Question 4240

What is $(-3)^4$?

$-81$
$81$✔️
$-12$
$12$

Correct Answer Logic:

$(-3)^4 = (-3) \times (-3) \times (-3) \times (-3) = 81$. Negative to even power is positive.

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