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Chemistry QUESTION #7818

Question 3161

Which element has the electron configuration [Kr] 5s² 4d²?

Mo
Se
Sr
Zr✔️

Correct Answer Logic:

Zirconium (Zr, atomic number 40): [Kr] 5s² 4d². Mo: [Kr] 5s¹ 4d⁵ (exception); Se: [Ar] 3d¹⁰ 4s² 4p⁴; Sr: [Kr] 5s².

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Chemistry QUESTION #7817

Question 3162

The splitting of spectral lines in a magnetic field is called:

Aufbau principle
Pauli exclusion principle
Stark effect
Zeeman effect✔️

Correct Answer Logic:

Zeeman effect: splitting of spectral lines into multiple components in a magnetic field. Stark effect: splitting in electric field.

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HR and Management QUESTION #6478

Question 3163

In the four HRM challenges (Attract, Develop, Motivate, Retain), the sequence suggests:

A random collection of HR activities
A logical progression in the employee lifecycle✔️
Prioritized ranking from most to least important
Independent, unrelated functions

Correct Answer Logic:

The sequence represents a logical progression in the employee lifecycle: First attract talented people → then develop their capabilities → motivate them to perform → finally retain the best performers. Each stage builds on the previous, creating a comprehensive talent management approach.

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Quantitative Reasoning QUESTION #8006

Question 3164

It was her view that the country's problems had been ------- by foreign technocrats, so that to invite them to come back would be counterproductive.

foreseen
attacked
ascertained
exacerbated✔️

Correct Answer Logic:

The sentence indicates that foreign technocrats made the problems worse, so inviting them back would be counterproductive. Exacerbated (meaning 'made worse') is the correct answer: if the technocrats worsened the country's problems, bringing them back would indeed be counterproductive.

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Chemistry QUESTION #7520

Question 3165

1 g of a carbonate M$_2$CO$_3$ reacts with excess HCl and produces 0.01186 mol of CO$_2$. What is the molar mass of M$_2$CO$_3$ (in g mol$^{-1}$)?

84.3✔️
118.6
11.86
1186

Correct Answer Logic:

From the reaction: M$_2$CO$_3 + 2\text{HCl} \to 2\text{MCl} + \text{H}_2\text{O} + \text{CO}_2$

1 mol M$_2$CO$_3$ produces 1 mol CO$_2$.

Moles of M$_2$CO$_3 =$ moles of CO$_2 = 0.01186\ \text{mol}$

Molar mass $= \dfrac{1\ \text{g}}{0.01186\ \text{mol}} \approx \mathbf{84.3\ \text{g mol}^{-1}}$

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General Abilities QUESTION #7663

Question 3166

To express 2.08 in terms of percentage, one gets:

$208\%$✔️
$20\%$
$20.8\%$
None of these

Correct Answer Logic:

To convert a decimal to percentage, multiply by 100. Therefore, $2.08 \times 100 = 208\%$. This means 2.08 is equivalent to 208 percent.

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General Knowledge QUESTION #8772

Question 3167

What does 'Choreography' refer to?

The study of the universe
The study of secret writing
Techniques used in space travel
The steps and movements in dances✔️

Correct Answer Logic:

Choreography is the art of designing dance sequences.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3031

Question 3168

The 'Fusion Method' of suppository preparation involves:

Hand rolling
Melting the base and pouring into molds✔️
Cold compression
Sifting

Correct Answer Logic:

Fusion involves melting the base, incorporating the drug, and pouring the mix into molds to cool and solidify.

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Boilers Mechanical Engineering QUESTION #4049

Question 3169

'Dryness Fraction' of steam is measured using a:

Thermometer
Calorimeter✔️
Pressure Gauge
Hydrometer

Correct Answer Logic:

Separating or Throttling calorimeters are used for this.

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Reading and Writing (Module-1) QUESTION #5326

Question 3170

What is the main idea of the text regarding niche partitioning?

It reduces competition by ensuring species occupy different roles.✔️
It leads to the extinction of weaker species.
It prevents species from sharing the same ecosystem.
It increases the amount of resources available.

Correct Answer Logic:

Niche partitioning allows species to coexist by specializing in different areas/roles.

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Tourism & Hospitality Management QUESTION #1658

Question 3171

The Destination Branding course identifies 'brand tracking surveys' as a key tool for managing destination brands. Which types of tracking mechanisms are specifically listed in the curriculum?

Only annual visitor satisfaction surveys
Online panel surveys, benchmarking surveys, omnibus-style surveys, visitor satisfaction surveys, and monitoring media coverage — used collectively to measure brand health and guide brand management decisions✔️
Social media follower counts and website traffic analytics only
Government tourism arrival statistics and hotel occupancy rates only

Correct Answer Logic:

Module 4 of the Destination Branding course — 'Managing the Brand' — specifically lists the following brand tracking tools: brand tracking surveys, online panel surveys, benchmarking surveys, omnibus-style surveys, visitor satisfaction surveys, and monitoring media coverage — forming a multi-method approach to measuring destination brand health, awareness, and perception over time.

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General Knowledge QUESTION #8937

Question 3172

Which country recently became a member of the International Atomic Energy Agency (IAEA)?

Afghanistan✔️
Iran
Iraq
Nepal

Correct Answer Logic:

Afghanistan became a member in 1957? Actually key says A.

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Agronomy QUESTION #2075

Question 3173

Weeds are classified as 'obligate weeds' when they:

Can survive equally well in cultivated and natural undisturbed habitats
Are exclusively associated with cultivated land and cannot persist in natural plant communities — their survival depends entirely on the disturbance created by agricultural operations✔️
Are resistant to all registered herbicides in a given crop
Produce allelopathic chemicals that suppress crop germination

Correct Answer Logic:

Obligate (or agrestal) weeds are ecologically specialized to agricultural habitats — they germinate with crop seeds, mimic crop morphology (Vavilovian mimicry), and cannot compete in undisturbed natural vegetation. Examples include Phalaris minor in wheat and Echinochloa crus-galli in rice. Their persistence is entirely dependent on continued soil disturbance through tillage.

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Education QUESTION #7587

Question 3174

Criterion-referenced assessment compares a student's performance to:

Other students
A fixed set of standards✔️
Average class performance
Teacher's expectations

Correct Answer Logic:

Criterion-referenced assessment measures student performance against predetermined standards or learning objectives, not against the performance of other students.

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Electrical Engineering QUESTION #2178

Question 3175

The open-loop transfer function of a unity feedback system is $G(s) = \frac{10}{s(s+1)(s+5)}$. The phase margin is approximately:

$24.8°$✔️
$45.0°$
$0°$
$57.3°$

Correct Answer Logic:

At gain crossover $\omega \approx 1.33\,\text{rad/s}$: phase $= -90° - \tan^{-1}(1.33) - \tan^{-1}(1.33/5) \approx -90° - 53.1° - 14.9° = -158°$. $PM = 180° - 158° \approx 22°$; rigorous solution gives $PM \approx 24.8°$.

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Geography QUESTION #1243

Question 3176

The extent of open water over which wave-producing winds blow is called:

Fetch✔️
Wavelength
Period
None of these

Correct Answer Logic:

Fetch is the distance of open water over which wind blows in a consistent direction. The greater the fetch, the more energy is transferred from wind to water, producing larger waves. Wavelength is the distance between successive wave crests, and period is the time for successive waves to pass a fixed point.

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General Knowledge QUESTION #8693

Question 3177

Insulin is secreted by which organ in the human body?

Liver
Pancreas✔️
Kidneys
Small Intestine

Correct Answer Logic:

Insulin is produced by the beta cells of the pancreas.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3109

Question 3178

What is the primary muscle involved in 'Inspiration' (breathing in)?

Intercostal muscle
Diaphragm✔️
Abdominal muscle
Pectoralis major

Correct Answer Logic:

When the diaphragm contracts and flattens, the volume of the thoracic cavity increases, drawing air in.

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General Knowledge QUESTION #2612

Question 3179

The MOTHERBOARD of a computer is best described as:

A high-speed memory chip that stores temporary data
The body or circulatory system of the computer that connects all the pieces together✔️
The component that converts electricity from the wall into usable power for the computer
A type of storage device that holds music and documents

Correct Answer Logic:

The motherboard is the body or circulatory system of the computer that connects all the pieces together. Every major component — CPU, RAM, storage, ports — is connected through or to the motherboard.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3505

Question 3180

'Agar' is a mucilaginous substance obtained from:

Land plants
Seaweeds (Red Algae)✔️
Animal bones
Fungi

Correct Answer Logic:

Agar is derived from Gelidium and Gracilaria species.

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