Reading Mode - Questions

Biology Zoology Botany QUESTION #1349

Which structure in fish helps them to maintain buoyancy?

Swim bladder✔️
Scales
Fins
None of these

Correct Answer Logic:

The swim bladder (gas bladder) is a gas-filled internal organ in most bony fish (Osteichthyes) that acts as a hydrostatic organ to control buoyancy. By adjusting the amount of gas in the swim bladder, fish can hover at different depths without expending energy swimming. Scales provide protection, and fins are used for locomotion and steering.

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Geography QUESTION #6310

Question 6122

In the gravity model of spatial interaction, what does the distance decay exponent 'b' represent?

Population growth rate between locations
Barrier effect of distance on interaction✔️
Economic development differential
Transportation cost per unit distance

Correct Answer Logic:

The exponent b (typically 1-3) represents the friction or barrier effect of distance. Higher b values indicate greater distance decay - interaction decreases more rapidly with distance. It varies by interaction type: social visits (high b), freight movement (low b).

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General Knowledge QUESTION #114

Question 6123

The microwave oven has become a standard appliance in many kitchens, mainly because it offers a fast way of cooking food. Yet, some homeowners believe that the ovens are still not completely safe. Microwaves, therefore, should not be a standard appliance until they have been carefully researched and tested.

Sub-Questions:

Question 1

Which of the following, if true, would most weaken the conclusion of the passage above?

Homeowners, often purchase items despite knowing they may be unsafe.
Those homeowners in doubt about microwave safety ought not to purchase microwaves.
Research and testing of home appliances seldom reveals safety hazards.✔️
Microwaves are not as dangerous as steam irons, which are used in almost every home.

Question 2

Which one of the following, if true, would most strengthen the conclusion of the passage above?

Homeowners often doubt the advertised safety of all new appliances.
Speed of food preparation is not the only concern of today’s homeowner.
Modern homeowners have more free time than ever before.
Many microwave ovens have been found to leak radioactive elements.✔️

Correct Answer Logic:

1 The conclusion of the passage is that, because of safety concerns, more research and testing ought to be done before microwaves become standard household appliances. If, however, research and testing are ineffective means of discerning safety problems (as choice C says), then research and testing would be irrelevant. This criticism seriously weakens the conclusion. So choice C is the correct answer.

2 If many microwave ovens have been found to leak radioactive elements (as choice D says), then the conclusion that microwaves should not be standard appliances until they are more carefully researched and tested is further strengthened because more safety concerns need to be addressed. So, choice E is the correct answer.

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Chemistry QUESTION #1005

Question 6124

Statement (I): Corrosion is an electrochemical phenomenon in which pure metal acts as an anode and impure metal as a cathode. Statement (II): The rate of corrosion is more in alkaline medium than in acidic medium.

Both Statement I and Statement II are true
Statement I is false but Statement II is true
Statement I is true but Statement II is false✔️
Both Statement I and Statement II are false

Correct Answer Logic:

Statement I is correct — in corrosion, pure metal (more reactive) acts as anode and gets oxidized, while impure metal acts as cathode. Statement II is false — corrosion is faster in acidic medium than alkaline medium because $\text{H}^+$ ions accelerate the oxidation process.

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Information Technology QUESTION #1127

Question 6125

The process of deleting an element from an empty stack is called:

Overflow
Deletion
Underflow✔️
None of these

Correct Answer Logic:

Stack Underflow occurs when an attempt is made to pop (delete) an item from a stack that contains no elements.

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Math Physics Chemistry Biology QUESTION #4250

Question 6126

Receptors that are located in the retina of eye are called:

Merkel disc
Ruffini endings
Pacinian corpuscles
Rod and Cone✔️

Correct Answer Logic:

Rod and cone cells are photoreceptors in retina.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3104

Question 6127

'Systolic' blood pressure refers to the pressure when the:

Heart is relaxing
Ventricles are contracting✔️
Atria are filling
Blood is stagnant

Correct Answer Logic:

Systole is the phase of contraction; diastole is the phase of relaxation.

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Planning QUESTION #4995

Question 6128

Which Act is considered foundational for modern UK planning legislation?

Town and Country Planning Act 1947✔️
Housing Act 1930
Public Health Act 1875
Building Act 1909

Correct Answer Logic:

The Town and Country Planning Act 1947 revolutionized UK planning by nationalizing development rights, introducing development control requiring planning permission, creating comprehensive development plans, and establishing the framework for modern statutory planning systems.

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General Knowledge QUESTION #8263

Question 6129

In the field of Information Technology, what is the full meaning of the abbreviation HTML?

Hyper Text Method Language
Hyper Text Markup Language✔️
Hyper Text Markup Logic
Hyperlink Text Markup Language

Correct Answer Logic:

HTML stands for Hyper Text Markup Language

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Verbal Reasoning QUESTION #8108

Question 6130

In a certain shop, notebooks that normally sell for 59 cents each are on sale at 2 for 99 cents. How much can be saved by purchasing 10 of these notebooks at the sale price?

$\$0.85$
$\$0.95$✔️
$\$1.10$
$\$1.15$

Correct Answer Logic:

Normal price for 10 notebooks: $10 \times 59\text{¢} = 590\text{¢} = \$5.90$

Sale: 2 notebooks for 99¢, so 10 notebooks cost $5 \times 99\text{¢} = 495\text{¢} = \$4.95$

Savings $= \$5.90 - \$4.95 = \$0.95$

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3539

Question 6131

'Fixed Oils' differ from 'Volatile Oils' because fixed oils:

Can be saponified (made into soap)✔️
Evaporate at room temperature
Are always liquid
Do not contain fat

Correct Answer Logic:

Fixed oils are esters of fatty acids and glycerol; volatile oils are not.

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Geology QUESTION #10655

Question 6132

Which of the following minerals displays a strong uniaxial negative optical character under the polarising microscope?

Zircon (uniaxial positive)
Quartz (uniaxial positive)
Apatite (uniaxial negative)✔️
All of these

Correct Answer Logic:

Apatite [$\text{Ca}_5(\text{PO}_4)_3(\text{F,Cl,OH})$] is uniaxial negative — its ordinary refractive index ($\omega$) is greater than its extraordinary index ($\epsilon$): $\omega > \epsilon$, so $\omega - \epsilon < 0$. In contrast, Quartz and Zircon are uniaxial positive ($\epsilon > \omega$). Uniaxial minerals have one optic axis (tetragonal, trigonal, hexagonal systems). The sign is determined using the Biot-Fresnel rule or interference figure with a gypsum plate.

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Statistics QUESTION #2002

Question 6133

Using the same company data (800 employees, 160 degree holders, 272 managers, 80 are both), the conditional probability $P(\text{college graduate} \mid \text{manager})$ is:

$\dfrac{80}{160}$
$\dfrac{80}{272}$✔️
$\dfrac{272}{800}$
$\dfrac{160}{272}$

Correct Answer Logic:

$P(\text{grad} \mid \text{manager}) = \dfrac{P(\text{grad} \cap \text{manager})}{P(\text{manager})} = \dfrac{80/800}{272/800} = \dfrac{80}{272} \approx 0.294$. This is the definition of conditional probability.

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Geography QUESTION #1245

Question 6134

The point in the sky directly over the observer is called:

Horizon
Zenith✔️
Aphelion
None of these

Correct Answer Logic:

The zenith is the point in the celestial sphere directly above an observer — the point at exactly 90° from all points on the observer's horizon. The horizon is the line where the sky meets the Earth. Aphelion is the point in Earth's orbit farthest from the Sun. The zenith is used as a reference point in astronomy and navigation.

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CISA QUESTION #6853

Question 6135

An organization's business continuity plan designates a hot site for disaster recovery but has no documented procedures for activating the site or transitioning operations. What is the MOST critical gap?

Incomplete documentation
Having recovery infrastructure without activation procedures creates uncertainty during actual disasters✔️
Cost inefficiency
Lack of testing

Correct Answer Logic:

A hot site provides technical infrastructure but is useless without clear activation procedures and transition plans. During actual disasters, stress and confusion are high—detailed procedures are critical for successful activation. Without documented processes, the organization risks confusion, delays, and potential failure to successfully activate the expensive hot site.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3351

Question 6136

The 'Prostate' gland in males secretes fluid that has:

High sugar
Antimicrobial properties (like zinc)✔️
Antibodies only
No function

Correct Answer Logic:

The secretions help protect the urinary tract from infection.

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General Knowledge QUESTION #8755

Question 6137

Which was the first international organization in modern history?

United Nations
Commonwealth of Nations
League of Nations✔️
None of the above

Correct Answer Logic:

The League of Nations (1920) was the first modern international organization.

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Dairy Food Science and Technology QUESTION #5902

Question 6138

The phenomenon of lactose crystallization in concentrated milk products causing a gritty texture is called:

Syneresis
Maillard browning
Sandiness due to $\alpha$-lactose monohydrate crystal formation (crystals $>30\;\mu\text{m}$)✔️
Creaming

Correct Answer Logic:

When lactose supersaturation occurs in condensed or sweetened condensed milk or ice cream, large $\alpha$-lactose monohydrate crystals ($>30\;\mu\text{m}$) form causing sandiness or grittiness. Control involves rapid cooling, seeding with fine lactose crystals, or use of lactase.

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Chemistry QUESTION #1099

Question 6139

Match List I (Vitamin) with List II (Deficiency disease): A. Vitamin B$_{12}$ B. Vitamin D C. Vitamin B$_2$ D. Vitamin B$_6$; with I. Cheilosis II. Convulsions III. Rickets IV. Pernicious anaemia

A-II, B-III, C-I, D-IV
A-IV, B-III, C-II, D-I
A-I, B-III, C-II, D-IV
A-IV, B-III, C-I, D-II✔️

Correct Answer Logic:

Vitamin B$_{12}$ deficiency → Pernicious anaemia (IV). Vitamin D deficiency → Rickets (III). Vitamin B$_2$ (riboflavin) deficiency → Cheilosis (cracking of lips) (I). Vitamin B$_6$ (pyridoxine) deficiency → Convulsions (II). Matching: A-IV, B-III, C-I, D-II.

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Planning QUESTION #4920

Question 6140

In development economics, what does GDP measure?

Total government debt of a country
Total value of goods and services produced✔️
Total population density
Total development projects

Correct Answer Logic:

GDP (Gross Domestic Product) measures the total monetary value of all goods and services produced within a country's borders during a specific time period, indicating economic performance.

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