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Therapeutics and Patient Care QUESTION #3878

A patient uses salbutamol and beclometasone MDIs twice daily. In what order should they be used, and with what timing?

Beclometasone 5 minutes after salbutamol✔️
Beclometasone immediately after salbutamol
Beclometasone 5 minutes before salbutamol
Beclometasone immediately before salbutamol

Correct Answer Logic:

The bronchodilator salbutamol should be used first to open airways; beclometasone (the corticosteroid) is then taken 5 minutes later to allow better penetration into the now-dilated bronchi.

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Boilers Mechanical Engineering QUESTION #2472

Question 2402

The center distance $c$ between two external meshing spur gears with pitch diameters $d_p$ and $d_g$ is:

$c = d_p - d_g$
$c = \frac{d_p + d_g}{2}$✔️
$c = \frac{d_p \cdot d_g}{2}$
$c = d_p + d_g$

Correct Answer Logic:

For external spur gears, the center distance equals the sum of the pitch circle radii: $c = r_p + r_g = (d_p+d_g)/2$.

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Contracts QUESTION #5850

Question 2403

An installment contract states that the Seller will deliver 12 monthly shipments. The first shipment is slightly late. Can the Buyer cancel the whole contract?

Yes, under the 'Perfect Tender Rule'.
No, unless the delay substantially impairs the value of the whole contract.✔️
Yes, but only if the Buyer is a non-merchant.
No, because installment contracts cannot be canceled.

Correct Answer Logic:

The Perfect Tender Rule does not apply to installment contracts. Under UCC §2-612, the buyer can only reject an installment or cancel the contract if the defect substantially impairs the value.

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General Knowledge QUESTION #8677

Question 2404

What was the first living creature to travel into space?

A dog (bitch)✔️
A frog
An eagle
A cow

Correct Answer Logic:

Laika, a dog, was the first living creature in space.

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Academic/Professional (Social Sciences) QUESTION #6503

Question 2405

What is 'Cultural Lag'?

The loss of culture over time
The gap between material and non-material culture during change✔️
A culture that refuses to change
The process of culture spreading from one society to another

Correct Answer Logic:

William Ogburn coined this to describe how technology often moves faster than social norms/values.

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General Abilities QUESTION #4520

Question 2406

What is $\sqrt{\frac{25}{9}}$?

$\frac{5}{3}$✔️
$\frac{25}{9}$
$\frac{5}{9}$
$\frac{2.5}{3}$

Correct Answer Logic:

$\sqrt{\frac{a}{b}} = \frac{\sqrt{a}}{\sqrt{b}}$. So $\sqrt{\frac{25}{9}} = \frac{\sqrt{25}}{\sqrt{9}} = \frac{5}{3}$

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Education QUESTION #1478

Question 2407

Al-Ghazali's major work 'Ihya al-Ulum al-Din' covers which broad fields?

Medicine and astronomy
Islamic Science, Jurisprudence, Logic, and Sufism✔️
Physics, Chemistry, and Mathematics
History and Sociology

Correct Answer Logic:

Al-Ghazali's 'Ihya al-Ulum al-Din' is described as covering a broad field of Islamic Science, Jurisprudence, Logic, and Sufism.

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Pakistan Affairs QUESTION #128

Question 2408

The Indus River originates in China, near:

Tianchi Lake
Lugu Lake
Mapam Lake
Mansarovar Lake✔️

Correct Answer Logic:

The Indus River originates in the Tibetan Plateau in the vicinity of Lake Mansarovar.

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Chemistry QUESTION #4371

Question 2409

What happens when $H^+$ is added to ammonium hydroxide and ammonium chloride buffer?

More ammonium hydroxide is formed
Reaction will move reverse
Reaction will move forward✔️
No effect on equilibrium

Correct Answer Logic:

In $NH_4OH/NH_4Cl$ buffer, adding $H^+$ shifts the equilibrium: $NH_4OH + H^+ \rightarrow NH_4^+ + H_2O$. The reaction moves forward (Le Chatelier's principle), consuming the added $H^+$ and maintaining the pH.

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Psychology QUESTION #1462

Question 2410

Which theory of emotion suggests that emotions occur simultaneously with physiological reactions?

Cannon-Bard Theory✔️
Schachter-Singer Two-Factor Theory
James-Lange Theory
Lazarus Cognitive-Mediational Theory

Correct Answer Logic:

The Cannon-Bard Theory (Walter Cannon and Philip Bard, 1927) proposes that emotions and physiological responses occur simultaneously and independently — both triggered at the same time by the thalamus. James-Lange Theory proposes emotions follow physiological arousal; Schachter-Singer requires cognitive labelling of arousal; Lazarus's theory emphasises cognitive appraisal as the primary step before emotion.

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English QUESTION #7877

Question 2411

Which word is a synonym for 'elated'?

Confused
Disappointed
Nervous
Overjoyed✔️

Correct Answer Logic:

'Elated' means extremely happy and excited. 'Overjoyed' is the closest synonym. 'Confused', 'disappointed', and 'nervous' are unrelated emotions.

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Physics QUESTION #1179

Question 2412

Gauss's law is applicable to charges which are:

Closely distributed in space
Sparsely distributed in space
Enclosed by a broken surface
Enclosed by a closed surface✔️

Correct Answer Logic:

Gauss's law states that the total electric flux through a closed (Gaussian) surface is proportional to the total charge enclosed: $\oint \vec{E} \cdot d\vec{A} = \frac{Q_{\text{enc}}}{\varepsilon_0}$. The surface must be a closed surface — it cannot be a broken or open surface. The distribution of charges (close or sparse) does not affect the applicability of the law.

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ETAG Aerospace Engineering (AE) QUESTION #3774

Question 2413 (Select all that apply)

Which of the following properties are characteristic of a real $n \times n$ matrix $A$?

If $A$ is symmetric, its eigenvalues are real.✔️
If $A$ is orthogonal, its determinant is $\pm 1$.✔️
If $A$ is skew-symmetric, its diagonal elements are zero.✔️
If $A$ is singular, its determinant is zero.✔️

Correct Answer Logic:

All listed options are standard properties of these specific matrix types.

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Math Physics Chemistry Biology QUESTION #4279

Question 2414

Hippocampus plays an important role in the:

Formation of short-term memory
Formation of image on retina
Formation of long-term memory✔️
Formation of emotions

Correct Answer Logic:

The hippocampus, located in the limbic system, is crucial for consolidating short-term memory into long-term memory and spatial navigation.

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Mathematics QUESTION #7482

Question 2415

For $x \in \mathbb{R} - \{0,1\}$, let $f_1(x) = \frac{1}{x}$, $f_2(x) = 1-x$ and $f_3(x) = \frac{1}{1-x}$ be three given functions. If a function J(x) satisfies $(f_2 \circ J \circ f_1)(x) = f_3(x)$, then J(x) is equal to:

$f_3(x)$✔️
$\frac{1}{x}f_3(x)$
$f_2(x)$
$f_1(x)$

Correct Answer Logic:

We have $(f_2 \circ J \circ f_1)(x) = f_2(J(f_1(x))) = f_2(J(\frac{1}{x})) = 1 - J(\frac{1}{x}) = f_3(x) = \frac{1}{1-x}$. So $J(\frac{1}{x}) = 1 - \frac{1}{1-x} = \frac{1-x-1}{1-x} = \frac{-x}{1-x} = \frac{x}{x-1}$. Replacing $\frac{1}{x}$ with t (so $x = \frac{1}{t}$): $J(t) = \frac{1/t}{1/t - 1} = \frac{1}{1-t} = f_3(t)$.

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Paper-II (Pharmacology and Social Behaviour, Law & Ethics and Computer Sciences) QUESTION #5795

Question 2416

Which of the following is a barrier to effective communication?

Filtering✔️
Feedback
Encoding
Channel

Correct Answer Logic:

Filtering is a barrier where the sender manipulates information[cite: 7].

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Islamic Studies QUESTION #7919

Question 2417

Who are the angels appointed to question the deads in their graves?

Munkir and Nakeer (AS)✔️
Hazrat Jahraiel (AS)
Hazrat Iiraeel (AS)
Hazrat Kikaet (M)

Correct Answer Logic:

Munkar and Nakir are the two angels who question the deceased in their graves. They ask three questions: (1) Who is your Lord? (2) What is your religion? (3) Who is your Prophet? This questioning is part of the trial in the grave (Barzakh), and believers answer correctly while disbelievers fail.

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English QUESTION #8570

Question 2418

What does the idiom 'to fish in troubled waters' mean?

catch fish in flood waters
to dive in deep waters
to go for a daunting task
to make personal profit from a disturbance✔️

Correct Answer Logic:

'Fish in troubled waters' means to exploit a disturbed situation for personal gain.

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Psychology QUESTION #9766

Question 2419

The process by which the body maintains a stable internal biological environment is known as:

Instinct
Need
Homeostasis✔️
None of these

Correct Answer Logic:

Homeostasis is the body's self-regulating process maintaining stable internal conditions (temperature, blood sugar, pH). Proposed by Walter Cannon, it is the physiological basis for biological drives and motivational states.

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Psychology QUESTION #9730

Question 2420

Which aspect of test quality refers to the consistency of a measurement instrument, i.e., the degree to which it produces the same results under the same conditions?

Validity
Standardization
Reliability✔️
Item discrimination

Correct Answer Logic:

Reliability refers to the consistency and stability of a psychological test. A reliable test yields the same (or very similar) scores each time it is administered to the same person under similar conditions. Types include test-retest reliability, inter-rater reliability, and internal consistency (e.g., Cronbach's alpha). Reliability is a necessary but not sufficient condition for validity.

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