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Physics QUESTION #1054

Martian orbit radius \(\approx4\times\) Mercury orbit radius. Martian year \(=687\) Earth days. Length of 1 year on Mercury:

172 earth days
124 earth days
88 earth days✔️
225 earth days

Correct Answer Logic:

Kepler's 3rd law: \(T^2\propto r^3\). \(\frac{T_{Mer}^2}{T_{Mar}^2}=\frac{r_{Mer}^3}{r_{Mar}^3}=\frac{1}{4^3}=\frac{1}{64}\). \(T_{Mer}=\frac{T_{Mar}}{8}=\frac{687}{8}\approx86\approx88\ \text{earth days}\).

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Quantitative Reasoning QUESTION #8014

Question 4102

Choose the word that is most nearly opposite in meaning to FALLACY

personal philosophy
imaginative idea
unconfirmed theory
valid argument✔️

Correct Answer Logic:

FALLACY means a false or mistaken belief, or flawed reasoning. The opposite would be sound, correct reasoning. Valid argument is the correct opposite: a fallacy is faulty reasoning, while a valid argument is sound, logical reasoning based on truth.

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Geography QUESTION #6303

Question 4103

The Hadley Cell circulation is characterized by three features:

Rising air at the equator and sinking at ~30° latitude
Surface trade winds flowing from subtropical highs to equatorial lows
Return flow aloft from equator toward poles

Which statements are correct?

Only 1 and 2
Only 2 and 3
Only 1 and 3
All three statements: 1, 2, and 3✔️

Correct Answer Logic:

The Hadley Cell is a thermally-driven circulation: (1) air rises at the ITCZ near the equator due to intense heating, (2) flows poleward aloft, (3) sinks at subtropical highs (~30°N/S), and (4) returns equatorward as surface trade winds. All three statements correctly describe this fundamental atmospheric circulation.

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Civil Procedure QUESTION #3742

Question 4104

A husband is on trial for tax fraud. The prosecution calls his wife to testify about a conversation they had in private while they were married. The husband objects. What privilege applies?

Spousal Immunity.
Confidential Marital Communications.✔️
Attorney-Client Privilege.
None, there is no privilege for fraud.

Correct Answer Logic:

The 'Confidential Marital Communications' privilege protects private communications between spouses made during the marriage. Either spouse can invoke it to prevent the other from testifying about the communication.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3301

Question 4105

An 'Autoimmune' disease occurs when the immune system:

Is suppressed
Attacks the body's own healthy tissues✔️
Cannot find any bacteria
Produces too many red blood cells

Correct Answer Logic:

The immune system fails to distinguish between 'self' and 'non-self'.

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Chemistry QUESTION #7804

Question 4106

The pK_b of n-propylamine is approximately:

3.24
3.28✔️
3.32
3.35

Correct Answer Logic:

n-Propylamine is a weak base with K_b ~5×10⁻⁴, pK_b = -log(5×10⁻⁴) ≈ 3.30. Closest is 3.32? Actually standard value ~3.32. But MDCAT often uses 3.28 or 3.32. Given options, 3.32 is common.

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Biology QUESTION #7284

Question 4107

Membrane-bound organelles are absent in:

Plasmodium
Saccharomyces
Streptococcus✔️
Chlamydomonas

Correct Answer Logic:

Streptococcus is a prokaryote (bacterium) and therefore completely lacks membrane-bound organelles such as mitochondria, endoplasmic reticulum, Golgi apparatus, and nucleus. Plasmodium is a eukaryotic parasite; Saccharomyces is a eukaryotic yeast; Chlamydomonas is a eukaryotic green alga — all have membrane-bound organelles.

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General Abilities QUESTION #7986

Question 4108

How many multiples of 9 that are less than 9999 are also perfect cubes?

5
6✔️
7
8

Correct Answer Logic:

Multiples of 9 that are perfect cubes: we need \(n^3\) divisible by 9, i.e., \(n^3\) divisible by \(3^2\), which means \(n\) divisible by 3.
Values: \(n = 3, 6, 9, 12, 15, 18\) give \(n^3 = 27, 216, 729, 1728, 3375, 5832\) — all less than 9999. That is 6 values.

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Accounting & Finance QUESTION #6198

Question 4109

The GAAP 'Realization Principle' requires that revenue be recognized when:

Cash is received in the bank.
The earning process is virtually complete.✔️
A contract is signed.
The fiscal year ends.

Correct Answer Logic:

Revenue is recognized when earned, usually at the time of sale, regardless of when cash is received [cite: 19].

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Physics and Math QUESTION #769

Question 4110

\(\int x\cos x\, dx = ?\)

\(x\sin x - \cos x + c\)
\(x\sin x - \cos x - c\)✔️
\(x\cos x - \sin x + c\)
None

Correct Answer Logic:

Using integration by parts: \(\int x\cos x\, dx = x\sin x - \int \sin x\, dx = x\sin x + \cos x + c\). Note: The paper marks option B (\(x\sin x - \cos x - c\)) but the standard result is \(x\sin x + \cos x + c\).

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Therapeutics and Patient Care QUESTION #3894

Question 4111

Which antihypertensive drug class is recommended as first-line therapy for a young adult patient with coexisting type 2 diabetes mellitus?

Metoprolol
Diltiazem
Indapamide
Ramipril✔️

Correct Answer Logic:

ACE inhibitors such as ramipril are first-line antihypertensives in diabetic patients because they provide additional renoprotective benefits by reducing intraglomerular pressure.

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Physics QUESTION #7860

Question 4112

Nurse pushing wheelchair: work done by patient's weight:

Half
Max
Min
Zero✔️

Correct Answer Logic:

Weight acts vertically, displacement horizontal → θ=90°, cos90=0 → W=0.

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Tourism & Hospitality Management QUESTION #1613

Question 4113

The Tourism and Hospitality Laws course addresses 'the law of tort' as relevant to hospitality operations. Which of the following scenarios would most directly engage tort law in a hotel context?

A hotel failing to renew its business registration on time
A guest slipping on an unmarked wet floor in the hotel lobby and sustaining injury due to the hotel's negligence✔️
A chef preparing food that does not meet a guest's flavor preference
A hotel raising its room rates during peak season

Correct Answer Logic:

The Tourism and Hospitality Laws course covers torts — specifically negligence, trademark infringement, and fraud — in Module 2. A guest injured due to the hotel's failure to maintain safe premises (e.g., an unmarked wet floor) is a classic negligence tort scenario in which the hotel owes a duty of care and may be held liable for breach of that duty.

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English QUESTION #2754

Question 4114

Which sentence is a SECOND CONDITIONAL?

If it rains✔️
I will take an umbrella.
If I were rich
I would travel the world.

Correct Answer Logic:

she would have passed.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3543

Question 4115

'Cannabis' (Charas/Hashish) is obtained from:

Cannabis sativa✔️
Papaver somniferum
Nicotiana tabacum
Atropa belladonna

Correct Answer Logic:

Cannabis is used for its resinous flowering tops.

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The Elections Act 2017 QUESTION #9444

Question 4116

Under Section 91(1), the Presiding Officer must prepare a gender disaggregated statement of voters at each polling station. This statement is required at what point?

Twenty-four hours before the polling day
At the close of nominations
At the time of communication of result to the Returning Officer and Commission✔️
Upon request by an authorized election observer

Correct Answer Logic:

Section 91(2) states: 'The Presiding Officer shall send the gender disaggregated statement of voters to the Returning Officer and to the Commission at the time of communication of result to the Returning Officer and the Commission.'

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3618

Question 4117

'Ash Value' is a physical parameter used to detect:

The amount of active ingredient
The presence of inorganic earthy matter/impurities✔️
The moisture content
The volatile oil content

Correct Answer Logic:

Ash content indicates the mineral or earthy residue left after burning.

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Accounting & Finance QUESTION #1205

Question 4118

Marginal costing is primarily used for:

Financial reporting.
Decision-making related to fixed costs.
Short-term decision-making.✔️
Preparing budgets for external stakeholders.

Correct Answer Logic:

Marginal costing (variable costing) separates fixed and variable costs. It is primarily used for short-term managerial decision-making — such as make-or-buy decisions, accept/reject special orders, product mix decisions, and break-even analysis. It is not acceptable for external financial reporting under GAAP/IFRS (which requires absorption costing).

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Physics QUESTION #365

Question 4119

When a helium atom loses an electron

it becomes:✔️
An alpha particle
Proton
A positive helium ion

Correct Answer Logic:

2

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Tourism & Hospitality Management QUESTION #1603

Question 4120

The Hospitality Operations course covers 'forces affecting growth and change in the hospitality industry.' Which of the following forces is specifically identified in the curriculum?

Political instability and military coups
Managing change, demand diversity, culture change, supply and land produce, workforce diversity, and the impact of labor scarcity✔️
Advances in space tourism and virtual reality hotels
Changes in international accounting standards

Correct Answer Logic:

Module 2 of the Hospitality Operations course specifically identifies the following forces: Managing change, demand diversity and culture change, supply — land and its produce, workforce diversity, and the impact of labor scarcity — as the key drivers shaping growth and transformation in the global hospitality industry.

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