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Study questions platform-wide or filter by specific tests with correct answers revealed.
General Knowledge
QUESTION #4728
Question 2141
Angela Merkel holds which political position in her country?
Correct Answer Logic:
Angela Merkel served as Chancellor of Germany from 2005 to 2021, becoming the first female Chancellor of Germany. The Chancellor is the head of government in Germany.
Uploaded by: Fani Warraich
Dairy Food Science and Technology
QUESTION #5991
Question 2142
In dairy microbiology, 'psychrotolerant' bacteria differ from 'psychrophilic' bacteria in that:
Correct Answer Logic:
True psychrophiles have optimal growth \(<15^{\circ}\text{C}\) and cannot grow above \(20^{\circ}\text{C}\). Psychrotolerant (psychrotrophs) bacteria grow optimally at \(20\text{–}30^{\circ}\text{C}\) but can also grow at refrigeration temperatures (\(0\text{–}7^{\circ}\text{C}\)), though slowly. Major dairy spoilage organisms (\(Pseudomonas\;fluorescens\)) are psychrotolerant.
Uploaded by: Fani Warraich
General Abilities
QUESTION #4598
Question 2143
Expand: $(x + 5)^2$
Correct Answer Logic:
Using $(a+b)^2 = a^2 + 2ab + b^2$: $(x+5)^2 = x^2 + 10x + 25$
Uploaded by: Fani Warraich
Physics
QUESTION #7076
Question 2144
A simple pendulum has a time period $T$ when measured in a stationary elevator. If the elevator begins to accelerate upwards at a rate of $g/2$, what is the new time period of the pendulum?
Correct Answer Logic:
The effective gravity $g_{eff}$ in an upward accelerating lift is $g + a = g + g/2 = 3g/2$. Since the time period $T \propto \frac{1}{\sqrt{g}}$, the new period $T' = T \sqrt{\frac{g}{3g/2}} = T \sqrt{\frac{2}{3}}$.
Uploaded by: Fani Warraich
Paper-I (Anatomy/Physiology and Biochemistry/Microbiology)
QUESTION #3121
Question 2145
'Peristalsis' is defined as:
Correct Answer Logic:
Peristalsis occurs throughout the GI tract to push contents forward.
Uploaded by: Fani Warraich
Islamic Studies
QUESTION #206
Question 2146
What was the main source of cultural influence in pre-Islamic Arabian society?
Correct Answer Logic:
Proximity to Byzantine and Sassanid borders brought Christian/Jewish influences.
Uploaded by: Fani Warraich
Correct Answer Logic:
The fraction of molecules with energy $\geq E_a$ is given by $f = e^{-E_a/RT}$. So $x = \frac{E_a}{RT} = \frac{80900}{8.31\times700} = \frac{80900}{5817} \approx 13.9 \approx 14$.
Uploaded by: Fani Warraich
Dairy Food Science and Technology
QUESTION #5941
Question 2148
Lactose intolerance occurs due to deficiency of which enzyme in the small intestine?
Correct Answer Logic:
Lactose intolerance results from insufficient lactase (\(\beta\)-galactosidase) in the small intestinal brush border. Undigested lactose reaches the colon and is fermented by colonic bacteria producing short-chain fatty acids, \(\text{H}_2\), \(\text{CO}_2\), and \(\text{CH}_4\), causing bloating, flatulence, cramping, and diarrhea.
Uploaded by: Fani Warraich
Boilers Mechanical Engineering
QUESTION #4071
Question 2149
'Turndown Ratio' of a burner refers to the ratio of:
Correct Answer Logic:
A burner with $10:1$ turndown can operate at $10\%$ of its full capacity without shutting off.
Uploaded by: Fani Warraich
Math Physics Chemistry Biology
QUESTION #4204
Question 2150
The digestive secretions from different parts of GIT have the ability to kill microbe present in the food. Which of the following best describe this role?
Correct Answer Logic:
Digestive secretions like HCl act as disinfectants.
Uploaded by: Fani Warraich
General Knowledge
QUESTION #9000
Question 2151
The 'Statue of Liberty' was a gift to the United States from which country on its independence centennial?
Boilers Mechanical Engineering
QUESTION #2454
Question 2153
The Rayleigh (energy) method for approximating the fundamental natural frequency equates:
Correct Answer Logic:
Rayleigh's method: for conservative systems in harmonic motion, maximum kinetic energy \(T_{max}=\frac{1}{2}m(\omega_n X)^2\) equals maximum potential energy \(V_{max}=\frac{1}{2}kX^2\). Setting \(T_{max}=V_{max}\): \(\omega_n^2=k/m\).
Uploaded by: Fani Warraich
Correct Answer Logic:
If the pitch difference increases over generations, it would support the hypothesis that female preference drives further divergence between the subspecies.
Uploaded by: Fani Warraich
General Knowledge
QUESTION #4819
Question 2155
The process by which a country develops its capacity to meet citizens' basic needs and raise living standards is called?
Correct Answer Logic:
Development refers to the sustained improvement in a country's economic, social, and political conditions, enabling it to better meet its citizens' basic needs and raise their overall standard of living.
Uploaded by: Fani Warraich
Chemistry
QUESTION #1106
Question 2156
Which one of the following compounds can exist as cis-trans isomers?
Correct Answer Logic:
For cis-trans isomerism in cyclic compounds, each carbon of the ring must bear two DIFFERENT substituents. 1,1-Dimethylcyclopropane: one carbon has two identical methyls → no cis-trans. 1,2-Dimethylcyclohexane: each of C1 and C2 has one methyl and one H → different groups on each → cis-trans isomers exist ✓. Pent-1-ene (CH\(_2\)=CHCH\(_2\)CH\(_2\)CH\(_3\)): terminal alkene, one end has two H → no isomerism. 2-Methylhex-2-ene: one end has two methyls → no cis-trans.
Uploaded by: Fani Warraich
Boilers Mechanical Engineering
QUESTION #3994
Question 2157
If an Inspector discovers a 'Structural Flaw' that makes a boiler dangerous, they are empowered to:
Correct Answer Logic:
Safety is the priority; the Inspector can issue an order to stop operation until repairs are certified.
Uploaded by: Fani Warraich
Math Physics Chemistry Biology
QUESTION #4298
Question 2158
Identify the most appropriate function of chromosomes:
Correct Answer Logic:
Chromosomes are composed of DNA and proteins. Their primary function is to store, organize, and transmit genetic information from cell to cell and generation to generation.
Uploaded by: Fani Warraich
Paper-II (Pharmacognosy and Pharmaceutics-I)
QUESTION #2974
Question 2159
Clinical Pharmacy primarily focuses on:
Correct Answer Logic:
Clinical pharmacy shifts the focus from the product to the patient, ensuring rational and safe use of medication.
Uploaded by: Fani Warraich
Chemistry
QUESTION #1418
Question 2160
A zero-order reaction rate does not depend on:
Correct Answer Logic:
For a zero-order reaction, the rate law is: \(\text{rate} = k[\text{A}]^0 = k\). The rate is equal to the rate constant \(k\) and is independent of the concentration of reactants. However, the rate constant \(k\) itself depends on temperature (via the Arrhenius equation), so temperature does affect the rate — but concentration does not.
Uploaded by: Fani Warraich
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