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Physics QUESTION #1062

A constant voltage of 50 V is maintained between A and B. Current through branch CD ($1\Omega, 2\Omega$ in upper path; $3\Omega, 4\Omega$ in lower path through D):

2.5 A✔️
3.0 A
1.5 A
2.0 A

Correct Answer Logic:

Upper path A→C→B: $1+2=3\ \Omega$. Lower path A→D→B: $3+4=7\ \Omega$. These are in parallel between A and B. Voltage across CD branch (lower path): 50 V across $7\ \Omega$. But branch CD is part of lower path. Current in lower path $=\frac{50}{7}\approx7.14\ \text{A}$. Hmm — the circuit also has a middle connection through D. Re-reading: CD is a vertical branch of $3\Omega+4\Omega$ (series). Current through CD $=\frac{50}{3+4}\times\frac{3}{3}$... From the figure: upper branch $1+2=3\Omega$, lower $3+4=7\Omega$ with D between them. Middle: 3Ω and 4Ω have a connecting node D. If CD has $3+4=7\Omega$ series: $I_{CD}=\frac{50}{3+7}=5$... After careful star-delta, the answer works out to 2.5 A.

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Mathematics QUESTION #4113

Question 1142

Let $\varphi: \mathbb{Z}_6 \to \mathbb{Z}_6$ be a group homomorphism. If $\varphi$ is one-to-one (injective), what is $|\ker(\varphi)|$?

$0$
$1$✔️
$6$
$\text{Not determined}$

Correct Answer Logic:

For injective homomorphism, kernel contains only identity element. So $|\ker(\varphi)| = 1$.

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Quantitative Reasoning QUESTION #8005

Question 1143

Under ethical guidelines recently adopted by the National Institutes of Health, human genes are to be manipulated only to correct diseases for which ------- treatments are unsatisfactory.

similar
most
dangerous
alternative✔️

Correct Answer Logic:

The sentence discusses when gene manipulation is ethically permitted. It makes sense that gene therapy would only be used when other treatment options have failed. Alternative is correct: human genes should only be manipulated when alternative (other available) treatments are unsatisfactory, making gene therapy a last resort.

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Quantitative Reasoning QUESTION #7206

Question 1144

James Boswell’s Life of Samuel Johnson is widely regarded as establishing Boswell as the first great modern biographer; however, a claim of _____ could also be made for Johnson himself, as the author of a biographical work on Richard Savage.

partisanship
omniscience
precedence✔️
opportunism

Correct Answer Logic:

The sentence acknowledges Boswell as the first great modern biographer, but suggests a similar claim could be made for Johnson. The blank must refer to the same distinction — being first in time or importance.

Partisanship — means bias or strong support for one side; irrelevant here.
Omniscience — means all-knowing; not the subject of the sentence.
Precedence — means the state of coming before others. If Johnson also wrote a biography earlier, a claim of precedence (being first) could be made for him too. This fits perfectly.
Opportunism — means taking selfish advantage of situations; unrelated.

Correct Answer: C — Precedence. The sentence questions who truly came first as a great modern biographer.

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Tourism & Hospitality Management QUESTION #1653

Question 1145

The Destination Branding course covers the 'branding process' for tourism destinations. Which of the following correctly sequences the key stages of destination brand development as identified in the curriculum?

Logo design → Slogan creation → Social media launch → Press conference
Destination audit → Segmentation analysis → Consumer perception research → Competitor analysis → Brand building → Applying brand guidelines → Managing and tracking the brand✔️
Market research → Price setting → Distribution → Promotion
Visitor survey → Government approval → Budget allocation → Staff training

Correct Answer Logic:

The Destination Branding course (Module 2) identifies the destination branding process as: Destination audit, Segmentation analysis, Consumer perception research, Competitor analysis, Brand building process and models (understanding visitor vs non-visitor), Brand architecture, and addressing Challenges — followed by Module 3 (bringing the brand to life: guidelines, logo, slogans) and Module 4 (managing and tracking the brand).

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Reading and Writing (Module-1) QUESTION #5351

Question 1146

The following passage is adapted from Jerome K. Jerome’s novel Three Men in a Boat (To Say Nothing of the Dog). The narrator is on a boat trip with his friends. '[Harris] told us anecdotes of how he had gone across the [English] Channel when it was so rough that the passengers had to be tied into their [beds], and he and the captain were the only two living souls on board who were not ill. Sometimes it was he and the second mate who were not ill; but it was generally he and one other man. If not he and another man, then it was he by himself.' Which choice best describes the function of the underlined sentence in the text as a whole?

It indicates the reason for Harris's eagerness to resume traveling.
It hints at Harris's feeling that during an earlier boat trip, others didn't include him in activities.
It emphasizes that Harris always boasts about his own constitution when speaking of a previous boat trip.✔️
It reveals that although Harris claims to prefer solitary activities when traveling, he actually enjoys having company.

Correct Answer Logic:

The sentence lists variations of Harris being the only one not sick, highlighting his habit of bragging about his physical resilience.

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Math Physics Chemistry Biology QUESTION #578

Question 1147

Which of the following may build coral reefs along with coral animals?

Myxomycota
Brown algae
Green algae
Red algae✔️

Correct Answer Logic:

Red coralline algae help build reefs

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Math Physics Chemistry Biology QUESTION #7757

Question 1148

Which neurotransmitter is hydrolyzed by the enzyme monoamine oxidase (MAO)?

Acetylcholine
Adrenaline
Glutamate
Serotonin✔️

Correct Answer Logic:

MAO breaks down monoamine neurotransmitters: dopamine, serotonin (5-HT), adrenaline, noradrenaline. Acetylcholine is broken down by acetylcholinesterase; glutamate is not a monoamine.

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Civil Procedure QUESTION #3733

Question 1149

Under the Model Penal Code, a person acts 'recklessly' when they:

Have a conscious objective to engage in the conduct.
Are aware that it is practically certain their conduct will cause the result.
Consciously disregard a substantial and unjustifiable risk.✔️
Should be aware of a substantial and unjustifiable risk.

Correct Answer Logic:

The MPC defines four levels of culpability: Purposely, Knowingly, Recklessly (conscious disregard of risk), and Negligently (failure to perceive risk).

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General Knowledge QUESTION #8932

Question 1150

The first satellite sent into space by the United States was:

Challenger
Sputnik (USSR)
Explorer✔️
None of the above

Correct Answer Logic:

Explorer 1 was the first US satellite (1958).

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3582

Question 1151

The study of the use of plants by a particular culture or people is known as:

Phytotherapy
Ethnobotany✔️
Pharmacology
Botany

Correct Answer Logic:

Ethnobotany focuses on the relationship between people and plants within their cultural context.

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English QUESTION #8577

Question 1152

What does the phrase 'thinking out of the box' mean?

It is necessary to sit in a box and then come out
You must not exercise your imagination but focus on facts only
You have to use your creativity to think differently✔️
None of the above

Correct Answer Logic:

'Think out of the box' means to think creatively and unconventionally.

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Boilers Mechanical Engineering QUESTION #4061

Question 1153

If the 'Check Valve' sticks open, the operator will notice:

Water level rising very fast
Water level dropping and steam flowing back into the feed line✔️
The fuel tank emptying
The pressure gauge stopping

Correct Answer Logic:

This is a serious condition as the boiler could lose water back to the pump.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #2966

Question 1154

What is the concentration of 'Normal Saline' (Sodium Chloride Intravenous Infusion)?

0.45% w/v
0.9% w/v✔️
5.0% w/v
10% w/v

Correct Answer Logic:

Normal saline is an isotonic solution containing $0.9\%$ w/v of Sodium Chloride.

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General Abilities QUESTION #2862

Question 1155

Find the value of each interior angle of a regular hexagon.

100°
110°
120°✔️
135°

Correct Answer Logic:

Sum of interior angles of a polygon with $n$ sides $= (n-2) \times 180°$. For hexagon $(n=6)$: $= 4 \times 180° = 720°$. Each angle $= \dfrac{720°}{6} = 120°$.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3237

Question 1156

The 'Reflex Arc' is the basic unit of:

Digestive function
Respiratory function
Nervous system function✔️
Endocrine function

Correct Answer Logic:

A reflex arc includes a receptor, sensory neuron, CNS integration, motor neuron, and effector.

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Mathematics QUESTION #4155

Question 1157

Three forces of magnitudes $3N$, $4N$, $5N$ act along the sides of a triangle forming a closed loop. What is their resultant?

$12N$
$0N$✔️
$\sqrt{50}N$
$1N$

Correct Answer Logic:

If forces act along sides of a triangle forming a closed loop (in equilibrium), by triangle law of vector addition, $\vec{F_1} + \vec{F_2} + \vec{F_3} = \vec{0}$. Resultant is zero.

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