problem stringlengths 14 4.09k | solution stringlengths 1 802k | task_type stringclasses 3
values | problem_tokens int64 5 895 |
|---|---|---|---|
The following is a multiple choice question (with answers).
===Question
There is a rectangular orifice on a clapboard. The height of the orifice is $a=1. 0$ m, and the width is $b=3 \mathrm{m}$. A cylinder with a diameter of $d=2 \mathrm{m}$ was used to block the orifice. Water is filled in both sides of the clapboard.... | $$
9 4. 0 4 \mathrm{~ k N}
$$ | general_qa | 320 |
The following is a multiple choice question (with answers).
===Question
An object of height $0.5\ cm$ is placed laterally in the medium of refractive index ${n}_{1}=1.5$ at a distance $100\ cm$ away form the pole. The radius of curvature of the surface is $20\ cm$. The height of the image formed after refraction is :
... | $$0.8\ cm$$ | general_qa | 157 |
The following is a multiple choice question (with answers).
===Question
The maximum range of a bullet fired from a toy pistol mounted on a car at rest $R_{0} = 40\ m$. What will the acute angle of inclination of the pistol for maximum range when the car is moving in the direction of firing with uniform velocity $v = 20... | $$60^{o}$$ | general_qa | 164 |
The following is a multiple choice question (with answers).
===Question
A wire of length 1 m and radius $ 10^{-3} $ m is carrying a heavy current and is assumed to radiate as a black body. At equilibrium, its temperature is 900 K while that of the surrounding is 300 K. The resistivity of the material of the wire at 300... | $$55 A$$ | general_qa | 215 |
The following is a multiple choice question (with answers).
===Question
Escherichia coli is a facultative anaerobic intestinal bacterium. Which of the following components is not found in Escherichia coli?
===Choices
Cellulose
Peptidoglycan
Keratin
Starch
Lipopolysaccharide
Cholesterol
N-acetylmuramic acid
Ergosterol
... | Phosphatidic acid | general_qa | 100 |
The following is a multiple choice question (with answers).
===Question
For laminar flow in a pipe, the drop in pressure $\Delta p$ is a function of the pipe length $L,$ its diameter $D$ , mean velocity of flow $V$ and the dynamic viscosity $\mu$ Using Raleigh's method, develop an expression for $\Delta p$ .
===Choice... | $$
\frac{\mu V} {L} \cdot\mathrm{f n} \left( {\frac{D} {L}} \right)
$$ | general_qa | 441 |
The following is a multiple choice question (with answers).
===Question
( ) in the film *My Father and Mother* portrays the young mother's pure and simple view of love to perfection.
===Choices
Tang Wei
Fan Bingbing
Gong Li
Sun Li
Zhang Ziyi
Liu Yifei
Yuan Quan
Joan Chen
Li Bingbing
Zhao Wei | Zhang Ziyi | general_qa | 85 |
The following is a multiple choice question (with answers).
===Question
A wound rotor induction motor is given with $\mathrm{P}_{\mathrm{N}}=44 \, \mathrm{kW}, \; \mathrm{n}_{\mathrm{N}}=1435 \, \mathrm{r/min}, \; \mathrm{E}_{\mathrm{2N}}=243 \, \mathrm{V}, \; \mathrm{I}_{\mathrm{2N}}=110 \, \mathrm{V}$. Assuming the l... | 0.048Ω,0.089Ω,0.167Ω,0.313Ω,0.585Ω | general_qa | 528 |
The following is a multiple choice question (with answers).
===Question
Patient, Wang, male, 62 years old, diagnosed with oculomotor myasthenia gravis, history of prostatic hyperplasia, and chronic urinary frequency and nocturia. He now has slight ptosis, no intravenous medications, no history of falls, and complains o... | 25 | general_qa | 119 |
The following is a multiple choice question (with answers).
===Question
Information that is frequently queried and not easily changed can be cached through in-memory databases such as Redis. Which of the following information needs to be cached?
I.activity details
II.the recent activity list
III.remaining activities vo... | Only I, II and IV | general_qa | 116 |
The following is a multiple choice question (with answers).
===Question
Evaluate $L=\lim_{P(x,y) \to P(a,2 \cdot b)}\left(\frac{ a^2 \cdot x \cdot y-2 \cdot a \cdot b \cdot x^2+a \cdot b \cdot y^2-2 \cdot b^2 \cdot x \cdot y }{ a^2 \cdot x \cdot y-2 \cdot a \cdot b \cdot x^2-a \cdot b \cdot y^2+2 \cdot b^2 \cdot x \cdo... | L=\frac{a^2+2\cdot b^2}{a^2-2\cdot b^2} | general_qa | 398 |
The following is a multiple choice question (with answers).
===Question
In the complex liquid-phase reaction
$$
(a), \mathrm{A + B \longrightarrow P};
(b), \mathrm{A + P \longrightarrow S}.
$$
The initial concentrations of the reactants are $c_{\mathrm{A \, 0}} \!=\! 2.0 \, \mathrm{mol/L}$, $c_{\mathrm{B \, 0}} \!=\! 4... | $$
\phi\!=\! {\frac{c_{\mathrm{P}}} {c_{\mathrm{B 0}}}} \!=\! {\frac{1. 5} {4. 0}} \!=\! 0. 3 7 5
$$ | general_qa | 852 |
The following is a multiple choice question (with answers).
===Question
The proposer of "The law is a necessary relationship arising from the nature of things" is ( ) ?
===Choices
Hobbes
Bentham
Spinoza
Montesquieu
Voltaire
Locke
Hegel
Kant
Rousseau
Mill | Montesquieu | general_qa | 74 |
The following is a multiple choice question (with answers).
===Question
A first-order irreversible reaction at a certain temperature $T$ has a reaction rate constant $k = 2 \, \mathrm{s}^{-1}$ based on the reactor. The catalyst consists of spherical particles with a diameter of 5 mm, and the bed porosity is $\varepsilo... | 1.67 | general_qa | 191 |
The following is a multiple choice question (with answers).
===Question
An organic compound undergoes electrolytic oxidation in a stationary solution at 25°C. If the diffusion step is the rate-controlling step, calculate the limiting diffusion current density for this electrode process. It is known that the number of e... | $$
= 0. 0 4 6 \, A / c m^{2}
$$ | general_qa | 379 |
The following is a multiple choice question (with answers).
===Question
In a pipeline with a diameter of 3in, a flow nozzle with a diameter of 2in is installed, allowing water to flow through at $72 ^\circ F$. If a water-air pressure gauge shows a difference of 2in, what is the volume of the flow?
===Choices
$$
0. 1 0... | $$
0. 0 7 3 2\ \mathrm{f t}^{3} / \mathrm{s e c}
$$ | general_qa | 386 |
The following is a multiple choice question (with answers).
===Question
Let the reference point for the vector potential be at infinity. The vector potential generated on the axis of a circular loop of wire with radius $R$, carrying a current $I$ is ().
===Choices
$$
A={\frac{\mu_{0} I} {4 \pi z^{2}}} \oint_{l} \mathr... | $$
A={\frac{\mu_{0} I} {4 \pi{\sqrt{z^{2}+R^{2}}}}} \oint_{l} \mathrm{d} I=0
$$ | general_qa | 504 |
The following is a multiple choice question (with answers).
===Question
In a thermodynamic process helium gas obeys the law $\displaystyle \frac { T }{ { P }^{ { 2 }/{ 5 } } } $ = constant. The heat given to a gas when temperature of m moles of $\displaystyle He$ is raised from $\displaystyle T$ to $2T$ is:
===Choices... | Zero | general_qa | 121 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is the number of times one must divide n by 2 to reach 1 in the context of the '3x+1' problem, also known as the Collatz conjecture, or -1 if this never happens. Given the input x_list (a series of... | [19, 11, 11, 11, 65, 16, 73, 16, 11, 16] | general_qa | 526 |
The following is a multiple choice question (with answers).
===Question
Which of the following dynasties was music significantly influenced by Central Asian culture?
===Choices
Tang
Xia
Zhou
Qin
Yuan
Jin
Han
Song
Sui
Ming | Tang | general_qa | 60 |
The following is a multiple choice question (with answers).
===Question
Calculate the residual concentration of silicon oxidation in the molten steel under slag with the following composition: $x ( \, \mathrm{CaO} + \mathrm{MgO} + \mathrm{MnO} \, ) = 50\%$, $x (\mathrm{SiO}_{2}) = 21\%$, $x (\mathrm{P}_{2}O_{5}) = 4\%$... | $$
3. 3 \times1 0^{-3} \%
$$ | general_qa | 325 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is the sequence obtained by applying the inverse Moebius transform twice to the sequence of perfect squares. Given the input x_list (a series of values): [32, 33, 34, 35, 36, 37, 38, 39, 40, 41], d... | [1818, 1353, 1746, 1377, 2754, 1371, 2178, 1881, 3024, 1683] | general_qa | 708 |
The following is a multiple choice question (with answers).
===Question
For a given closed-loop system:
$$
\frac{C(s)}{R(s)} = \frac{36}{s^2 + 2s + 36}
$$
What is the rise time of this system in response to a unit step input through analysis and calculation?
===Choices
$$
0. 2 9 9 5 \ s e c
$$
$$
0. 3 3 0 5 \ s e c
$$... | $$
0. 2 9 3 8 \ s e c
$$ | general_qa | 266 |
The following is a multiple choice question (with answers).
===Question
Who are the subjects of social medicine research?
===Choices
Just healthcare workers
Sub-healthy population
All community residents
Patient
Specific ethnic groups only
Patients in the recovery period
Individuals in urban areas only
Special populat... | All community residents | general_qa | 81 |
The following is a multiple choice question (with answers).
===Question
Tolstoy's worldview transformation refers to the shift from the perspective of the aristocratic landowning class to which perspective?
===Choices
The perspective of the proletariat
The perspective of the working class
The perspective of the patria... | The perspective of the patriarchal peasants | general_qa | 70 |
The following is a multiple choice question (with answers).
===Question
In the geometric calculation of the mean square end-to-end distance of polymer chains, the primary model for extended polymer chains is ( ).
===Choices
Bent, crinkled, twirled
Rounded, serrated, twisted
Straight, jagged, coiled
Linear, rippled, he... | Linear, serrated, spiral | general_qa | 123 |
The following is a multiple choice question (with answers).
===Question
Newton's Law of Cooling states that the temperature $T$ of an object at any time $t$ can be described by the equation $T = T_{s} + (T_{0} - T_{s}) \cdot e^{-k \cdot t}$, where $T_{s}$ is the temperature of the surrounding environment, $T_{0}$ is th... | t = ln((T - T_s) / (T_0 - T_s))^(-1/k) | general_qa | 254 |
The following is a multiple choice question (with answers).
===Question
Which of the following macroscopic processes can be considered as reversible processes?
===Choices
At 100°C, ice sublimates directly to steam.
At 100°C, water boils into steam.
Under pressure, gas compresses uniformly.
In sunlight, water evaporate... | At 0°C, ice melts into water. | general_qa | 126 |
The following is a multiple choice question (with answers).
===Question
For the reaction:
$$2{ Fe }^{ 3+ }(aq)+{ { (Hg }_{ 2 }) }^{ 2+ }(aq)\rightleftharpoons 2{ Fe }^{ 2+ }(aq)+{ { 2Hg } }^{ 2+ }(aq)$$
${ K }_{ C }=9.14\times { 10 }^{ -6 }$ at 25C. If the initial concentration of the ions are ${ Fe }^{ 3+ }=0.5\,M$, $... | ${ Fe }^{ 3+ }=0.4973 M$,${ Hg }_{ 2 }^{ 2+ }=0.4987 M$, ${ Fe }^{ 2+ }=0.0327 M$, ${ Hg }^{ 2+ }=0.0327M$ | general_qa | 879 |
The following is a multiple choice question (with answers).
===Question
What was the first carrier-based aircraft model to use a head-up display?
===Choices
A-5
A-1
A-2
A-4
A-9
A-8
A-10
A-3
A-7
A-6 | A-5 | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
The main mechanism for controlled release in wax-based matrix tablets is ( ).
===Choices
Osmotic pressure
Sedimentation
Volatilization
Erosion
Disintegration
Diffusion
Filtration
Adsorption
Ion exchange
Capillary action | Erosion | general_qa | 69 |
The following is a multiple choice question (with answers).
===Question
Two particles, each with a charge of magnitude $12 \mathrm{nC}$, are at two of the vertices of an equilateral triangle with edge length $2.0 \mathrm{~m}$. What is the magnitude of the electric field at the third vertex if both charges are positive?... | $47$$\mathrm{~N} / \mathrm{C}$ | general_qa | 241 |
The following is a multiple choice question (with answers).
===Question
Design a heat pump heating device using air as a heat source so that it can have a heating capacity of 35 kW at an air temperature of 0°C and a condensing temperature of $t_k$=45°C. The evaporation temperature of the evaporator that obtains heat fr... | $56.3 m^3/h$ | general_qa | 245 |
The following is a multiple choice question (with answers).
===Question
What was the name of the maid who committed suicide by setting herself on fire on May 21, 2007, because the former MLA Ashok Veer Vikram Singh exploited her physically, while his wife, a sitting MLA from Bijawar, used to beat her and keep her witho... | Tijjibai | general_qa | 110 |
The following is a multiple choice question (with answers).
===Question
What is the temperature range for matte smelting?
===Choices
950-1150°C
1450-1550°C
1150-1250°C
1000-1100°C
1550-1650°C
1250-1350°C
1100-1300°C
1050-1150°C
950-1050°C
1350-1450°C | 1150-1250°C | general_qa | 135 |
The following is a multiple choice question (with answers).
===Question
The leading organization for budget execution in China is ( ).
===Choices
Ministry of Finance
National People's Congress
State Council and local people's governments at all levels
State Administration of Budget Management
Council of Economic Strat... | State Council and local people's governments at all levels | general_qa | 94 |
The following is a multiple choice question (with answers).
===Question
Given that the Fourier transform of x(t) is $$
\mathrm{X} \ ( \mathrm{j \omega} )$$
, then $$g ( t )=\int_{-\infty}^{\frac{1} {2}-t} x ( \tau) \mathrm{d} \tau$$What is the expression for the Fourier transform $$\mathrm{G} \ ( \mathrm{j \omega} )$$?... | $$\frac{X (-\mathrm{j} \omega)} {-\mathrm{j} \omega} \mathrm{e}^{-\mathrm{j} 0 5 \omega}$$ | general_qa | 375 |
The following is a multiple choice question (with answers).
===Question
Vegetables rich in vitamin C include ( ).
===Choices
Button mushroom
Golden beet
Green amaranth
Baby Bok Choy
Loofah
Sweet corn
Winter melon
Cucumber
Zucchini squash
White asparagus | Green amaranth | general_qa | 65 |
The following is a multiple choice question (with answers).
===Question
In a study concerning a new treatment of a certain disease, two groups of 25 participants in each were followed for five years. Those in one group took the old treatment and those in the other took the new treatment. The theoretical dropout rate fo... | $0.3359$ | general_qa | 229 |
The following is a multiple choice question (with answers).
===Question
On what date, month, and year was Patricio Echegaray, an Argentine politician born in San José de Jáchal, born?
===Choices
17 November 1946
17 September 1946
17 October 1946
17 June 1946
17 January 1946
17 December 1946
17 February 1946
17 May 194... | 17 October 1946 | general_qa | 138 |
The following is a multiple choice question (with answers).
===Question
An electron with a rest mass of $m$ and a charge of $e$ moves in a plane perpendicular to a uniform magnetic field. Ignoring radiation, the electron's orbit is a circle with a radius of $R$. Given that the electron's energy $E \gg mc^{2}$, derive t... | $$
B=0. 2 8 \mathrm{T}
$$ | general_qa | 294 |
The following is a multiple choice question (with answers).
===Question
Archaeological evidence for the collapse of civilizations suggests which of the following is the most important variable?
===Choices
the existence of a written language
the civilization's trade networks with other societies
the civilization's reli... | how societies respond to challenges | general_qa | 113 |
The following is a multiple choice question (with answers).
===Question
Assume that a drug molecule partitions from water to oil with a partition coefficients $K_{1}=$ 1000 at $T_{1}=3 0 0 \, \mathrm{K},$ and $K_{2}=1 4 0 0$ at $T_{2}=3 2 0 \mathrm{~ K}.$
Calculate the free energy of transfer, what is $\Delta\mu^{\circ... | $$
- 4. 1 1 8 ~ {\frac{\mathrm{k c a l}} {\mathrm{m o l}}}
$$ | general_qa | 451 |
The following is a multiple choice question (with answers).
===Question
What is the SF-36 Health Survey Scale used to measure?
===Choices
Evaluation of Healthcare Services by the General Population
Measurement of Mental Wellness in Urban Areas
Measurement of Quality of Life in Patients with Infectious Diseases
Assessm... | Measurement of the Quality of Life in the General Population | general_qa | 123 |
The following is a multiple choice question (with answers).
===Question
Identify the antecedent of the following conditional proposition: The Bees win their first game only if either the Aardvarks or the Chipmunks do not win their first games.
===Choices
Both the Aardvarks and the Chipmunks do not win their first game... | The Bees win their first game. | general_qa | 184 |
The following is a multiple choice question (with answers).
===Question
Consider a group of 10 people {A,B,C,D,E,F,G,H,I,J} and we are to choose a committee of 4 people from them. Given that (1) A and B should not be chosen together, and that (2) A, C, F should not be chosen together, then how many ways are there to ch... | 176 | general_qa | 132 |
The following is a multiple choice question (with answers).
===Question
Orbital speed of a satellite in a circular orbit is given by ${v_0} = \sqrt {\frac{{GM}}{r}} $, where $r$ is the radius of circular path and $M$ is the mass of planet. Two satellite each of mass m revolving in circular orbits of radius $5R$ in opp... | $$\ {2{v_0}} $$ | general_qa | 204 |
The following is a multiple choice question (with answers).
===Question
What phenomenon occurs in which scanning technology is referred to as vertical blanking interval?
===Choices
Interlaced scanning
Non-interlaced scanning with VBI
Progressive scanning with VBI
Non-interlaced scanning
Interlaced scanning with VBI da... | Interlaced scanning | general_qa | 107 |
The following is a multiple choice question (with answers).
===Question
The way in which the neurotransmitter norepinephrine is eliminated in synaptic cleft does not include ____.
===Choices
Diffusion away from the synaptic cleft
Degradation by acetylcholinesterase
Post synaptic membrane effector uptake
Reuptake by gl... | Cholinesterase metabolism | general_qa | 115 |
The following is a multiple choice question (with answers).
===Question
In what ways does artistic truth, as opposed to the reality of life, convey an understanding or insight into the inherent nature of social existence?
===Choices
Literal Representation.
Symbolic Interpretation.
Emotional Experience.
Satirical Comme... | Hypothetical Scenario. | general_qa | 89 |
The following is a multiple choice question (with answers).
===Question
Who is the developer of the Palmer Drought Index?
===Choices
Wayne H. Palmer Sr.
Wayne Palmer Sr.
Wayne W. Palmer Jr.
Wayne H. Palmer
Wayne W. Palmer Sr.
Wayne W. Palmer
Wayne Palmer Jr.
Wayne P. Palmer
Wayne H. Palmer Jr.
Wayne Palmer | Wayne Palmer | general_qa | 87 |
The following is a multiple choice question (with answers).
===Question
All linear genomes share a common problem of replication. Define the problem and describe how the process of reverse transcriptionelegantly solves it.
===Choices
All linear genomes struggle with the degradation of DNA at the ends during replicatio... | The problem faced by all linear genomes is replicating the entire genome without loss of information from the ends. Retroviruses solved this problem simply by copying the 5' end before copying the rest of the strand. | general_qa | 359 |
The following is a multiple choice question (with answers).
===Question
10.00 grams of impure D-glucose are dissolved in distilled water and diluted to $100ml$. Using a $2dm$ polarimeter sample tube, first fill the tube with distilled water and record the zero reading as +2.020°. Then fill the tube with the test soluti... | $$71\%$$ | general_qa | 207 |
The following is a multiple choice question (with answers).
===Question
After the Xinhai Revolution, the fundamental reason for the Chinese people's continued exploration of the path to save the country is ( ).
===Choices
The retrogressive actions of the Beiyang warlords
The social nature and fundamental contradiction... | The social nature and fundamental contradictions of China have not changed. | general_qa | 182 |
The following is a multiple choice question (with answers).
===Question
What is the concentrated embodiment of the important thought of "Three Represents" in the military field?
===Choices
Framework of joint military exercises and training
Doctrine of economic military integration
Vision of comprehensive security and ... | Thought of national defense and military construction | general_qa | 110 |
The following is a multiple choice question (with answers).
===Question
Grotius believed that sovereignty should be held in the hands of ( )?
===Choices
Nobility
Corporations
Local governments
Ethnicity
Monarch
Religious institutions
People
Military leaders
Academic elites
International organizations | Monarch | general_qa | 66 |
The following is a multiple choice question (with answers).
===Question
A ball is thrown vertically downwards from a height of $20\, m$ with an initial velocity of $v_o$. It collides with the ground, loses $50$% of its energy in the collision and rebounds to the same height. The initial velocity $v_o$ is (Take $g=10\, ... | $$20\, m/s$$ | general_qa | 183 |
The following is a multiple choice question (with answers).
===Question
A metallic ring is held horizontally and a magnet is allowed to fall vertically through it with N-pole pointing upwards. The acceleration of a magnet near the ring is $a$. Then:
===Choices
$a g$ while approaching.
$$a=g$$
$a > g$ while approaching... | $a < g$ while approaching as well as receding. | general_qa | 159 |
The following is a multiple choice question (with answers).
===Question
Using dimensional analysis, compare the relative heat losses of two geometrically similar SI engines (same bore/stroke ratio, same connecting rod/stroke ratio) operating at the same imep and power. Engine A has twice the displacement per cylinder o... | 1.06 | general_qa | 133 |
The following is a multiple choice question (with answers).
===Question
The literary criticism principle '博采欧美人之长,荟萃熔铸而自得之.' was proposed in which work?
===Choices
人境庐诗草序
饮冰室合集·文集之二·小说论
饮冰室诗话
诗集自序
人间词话 | 人境庐诗草序 | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
The fundamental difference between large and small eccentric compression of reinforced concrete eccentrically compressed members is ( ).
===Choices
whether the tension reinforcement yields at the section failure
the size of the eccentricity
whethe... | whether the tension reinforcement yields at the section failure | general_qa | 156 |
The following is a multiple choice question (with answers).
===Question
To address the challenges posed by an aging population, China's current pension insurance funding model is ( ).
===Choices
contribution-based system
collective savings system
fully funded system
retirement reserve system
commercial fund system
sta... | partial fund system | general_qa | 81 |
The following is a multiple choice question (with answers).
===Question
The arrangement order of shell plates is: from flat plate keel K line plate towards _____, with each strake numbered as A, B, C, D... until _____
===Choices
Port(starboard)/side plates
Upward/strakes
Port(starboard)/deck strakes
Forward/strakes | Port(starboard)/deck strakes | general_qa | 80 |
The following is a multiple choice question (with answers).
===Question
A painter contracted to paint a homeowner's house for $1,000, paid in advance. When the painter was halfway done, the painter left the job and never returned. The homeowner diligently pursued other painters to finish the job but could not find anyo... | $2,000. | general_qa | 249 |
The following is a multiple choice question (with answers).
===Question
Which of the following is a component of kangaroo mother care-
===Choices
Kangaroo feeding
Phototherapy
Skin-to-skin contact
Heat therapy
Infrequent bottle feed
Early solid food
Kangaroo positioning
Infant massage
Exclusive breast feed
Incubator | Exclusive breast feed | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
The bacteriophage genome integrated into the host bacterial chromosome is called ( ).
===Choices
Pre-phage
Phage DNA sequence
Pro-bacteriophage
Phage RNA
Phage plasmid
Post-phage
Viral chromosome
Anti-phage
Host-phage DNA
Pre-phage template | Pre-phage | general_qa | 78 |
The following is a multiple choice question (with answers).
===Question
E.coli is the most widely used prokaryotic expression system. Although many eukaryotic water-soluble proteins have been successfully expressed using E.coli, what are the limitations of expressing eukaryotic membrane proteins using E.coli?
===Choic... | Lack of organelles | general_qa | 130 |
The following is a multiple choice question (with answers).
===Question
An amount of $0.10$ moles of $AgCl(s)$ is added to one litre of water. Next, the crystals of $NaBr$ are added until $75$% of the $AgCl$ is converted to $AgBr(s)$, the less soluble silver halide. What is $Br^{-}$ at this point? $K_{sp}$ of $AgCl = 2... | $$1.5 \times 10^{-4}M$$ | general_qa | 270 |
The following is a multiple choice question (with answers).
===Question
Infinite number of masses, each $1 \mathrm { kg } ,$ are placed along the $x$-axis at $x = \pm 1 m , \pm 4 m , \pm 8 m , \pm 16 \mathrm { m } , \ldots$ The magnitude of the resultant gravitational potential in terms of gravitational constant ... | $$4G$$ | general_qa | 151 |
The following is a multiple choice question (with answers).
===Question
A large tank is filled with water (density $ \rho $), upto height h. Water is coming out from section (4). Fluid pressure at section (3) is:(Given : $ {A}_{2} = {A}_{4} = 2{A}_{3} $ and $ {A}_{2},{A}_{3},{A}_{4} << {A}_{1} $ ; atmospheric pressure ... | $$ {P}_{0} - 3\rho gh $$ | general_qa | 242 |
The following is a multiple choice question (with answers).
===Question
On the 8,000-year-old Jiahu bone flute, what have we found complete?
===Choices
Eight-octave range
Nine-rhythm pattern
Five-note sequence
Ten-pitch lineup
Seven-tone scale
Four-chord progression
Five-tone scale
Six-note sequence
Three-string arran... | Seven-tone scale | general_qa | 83 |
The following is a multiple choice question (with answers).
===Question
What day, month, and year was the municipality of Arboletes, Antioquia, Colombia, founded?
===Choices
July 20th, 1923
July 20th, 1915
July 20th, 1910
July 20th, 1918
July 20th, 1920
July 20th, 1921
July 20th, 1919
July 20th, 1925
July 20th, 1922
J... | July 20th, 1920 | general_qa | 159 |
The following is a multiple choice question (with answers).
===Question
Surface of certain metal is first illuminated with light of wavelength $\lambda_1 =350\, nm$ and then, by light of wavelength $\lambda_2=54 nm$. It is found that the maximum speed of the photo electrons in the two cases differ by a factor of $2$. ... | $$1.8$$ | general_qa | 171 |
The following is a multiple choice question (with answers).
===Question
Among the following punctuation divisions of parts of the text, the correct option is
===Choices
甘罗曰/应侯欲伐赵/武安君难之/去咸阳七里/绞而杀/之今文信侯自请卿相燕/而卿不肯行/臣不知卿所死之处矣/
甘罗曰/应侯欲伐赵/武安君难之/去咸阳七里/绞而杀之/今文信侯自请卿相/燕而卿不肯行/臣不知卿所死之处矣/
甘罗曰/应侯欲伐赵/武安君难之/去咸阳七里绞/而杀之/今文信侯自请卿相燕/而卿不肯行... | 甘罗曰/应侯欲伐赵/武安君难之/去咸阳七里/绞而杀之/今文信侯自请卿相燕/而卿不肯行/臣不知卿所死之处矣/ | general_qa | 521 |
The following is a multiple choice question (with answers).
===Question
Let $X_1, X_2, \ldots$ be a sequence of independent indetically distributed random variables drawn according to the probability mass function $p(x) = N(0,1)$. Let $q(x)=N(1,1)$ be another probability mass function. Use natural logarithm to evaluate... | 1.4 | general_qa | 158 |
The following is a multiple choice question (with answers).
===Question
What was P. V. Sanjay Kumar's position just before being appointed as a judge of the Supreme Court of India?
===Choices
chief justice of the Patna High Court
chief justice of the Jharkhand High Court
chief justice of the Calcutta High Court
chief ... | chief justice of the Manipur High Court | general_qa | 134 |
The following is a multiple choice question (with answers).
===Question
Consider the following amplitude modulated (AM) signal,where $f_m<B$.$x_{AM}(t)=10(1+0.5\sin{2\pi f_mt})\cos{2\pi f_ct}$The average side-band power for the AM signal given above is
===Choices
7.8125
$$3.125$$
$$25$$
10.625
15.625
$$12.5$$
18.75
$$... | $$12.5$$ | general_qa | 140 |
The following is a multiple choice question (with answers).
===Question
During the development of the Pinus tabulaeformis (Chinese pine), which of the following cells have a haploid number of chromosomes?
===Choices
Germ cell
Epidermal cell
Granule cell
Hypodermal cell
Endosperm cell
Guard cell | Endosperm cell | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
If the daily water intake is 2000 milliliters, how many milliliters of daily urine output would be considered polyuria (excessive urination)?
===Choices
2500 milliliters
2900 milliliters
3000 milliliters
2600 milliliters
2200 milliliters
2100 mill... | 2500 milliliters | general_qa | 131 |
The following is a multiple choice question (with answers).
===Question
What are the developmental processes of Orthoptera and Lepidoptera insects?
===Choices
Direct Metamorphosis, Ectometabolism
Hemimetabolous metamorphosis, gradual metamorphosis
Proto-Metamorphosis, Hypermetabolism
Gradual Metamorphosis, Hemimetabol... | Gradual Metamorphosis, Hemimetabolism | general_qa | 149 |
The following is a multiple choice question (with answers).
===Question
Three forces $\vec{F}_{1} = (2 \hat{i} + 4 \hat{j}) \, \text{N}$, $\vec{F}_{2} = (2 \hat{j} - \hat{k}) \, \text{N}$, and $\vec{F}_{3} = (\hat{k} - 4\hat{i} - 2 \hat{j}) \, \text{N}$ are applied on an object of mass $1 \, \text{kg}$ at rest at the o... | $$4 m$$ | general_qa | 190 |
The following is a multiple choice question (with answers).
===Question
Anhydrous $AlCl_3$ is covalent. from the data given below
Lattice Energy $= 5137 \, KJ \, mol^{-1}$
$\triangle H\ hydration\ Al^{3+} = - 4665 \ KJ / mol^{-1}$
$\triangle H\ hydration\ Cl^- = -381\, KJ / mol^{-1}$
Identify the correct statement-
... | The solution will consists of $AI^{3+}$ and $CI^{-}$ | general_qa | 287 |
The following is a multiple choice question (with answers).
===Question
What is the nature of the child's physical and mental development?
===Choices
Imbalance and Diversity
Phased and Sequential
Random and Scheduled
Uniform and Discontinuous
Spontaneous and Methodical
Sequence and Unpredictability
Diversity and Seque... | Phased and Sequential | general_qa | 85 |
The following is a multiple choice question (with answers).
===Question
If four processes share the same program segment and up to three processes are allowed to enter the program segment at the same time, using P and V operations as the synchronization mechanism, the range of values for the semaphore is ().
===Choice... | $$
3, 2, 1, 0,-1
$$ | general_qa | 240 |
The following is a multiple choice question (with answers).
===Question
What is the circumference of the ellipse $\frac{x^{2}}{4} + y^{2} = 1$? Provide the result with five significant figures.
===Choices
$$
I \approx8. 9 0 4 7
$$
$$
I \approx9. 5 0 7 9
$$
$$
I \approx9. 6 8 8 4
$$
$$
I \approx8. 1 5 5 3
$$
$$
I \appr... | $$
I \approx9. 6 8 8 4
$$ | general_qa | 229 |
The following is a multiple choice question (with answers).
===Question
A. B. C. three machine tools processing a batch of the same parts, the ratio of the number of parts processed by each machine tool is 5:3:2, and the qualified rate of the parts processed by each machine tool is 94%, 90%, 95% in turn. Now a random c... | $$
{\frac{3} {7}}
$$ | general_qa | 233 |
The following is a multiple choice question (with answers).
===Question
Tests on human subjects in Boston in 1965 and 1966, following the era of atomic bomb testing, revealed average quantities of about 2 pCi of plutonium radioactivity in the average person. How many disintegrations per second does this level of activi... | $$
2.0\, \times\, 1 0^{-5} \mathrm{~ r e m / y r}
$$ | general_qa | 440 |
The following is a multiple choice question (with answers).
===Question
What is the female gametophyte of angiosperms?
===Choices
Ovule
Synergid cell
Megaspore mother
Fertilization site
Central cell nucleus
Embryo sac
Egg cell
Mature Blastocyst
Polar nucleus
Haploid zygote | Mature Blastocyst | general_qa | 77 |
The following is a multiple choice question (with answers).
===Question
In agricultural fields, what may result from a high water table?
===Choices
better seed germination, increasing plant numbers
rise in toxic salt accumulation, harming plants
decreased crop disease resistance, resulting in loss
restricted root grow... | restricted root growth of crops, affecting growth | general_qa | 128 |
The following is a multiple choice question (with answers).
===Question
Calculate ${ \Delta H }^{ \circ }_{ combustion }$ of acetone if ${ \Delta H }^{ \circ }_{ f }$ of acetone =${ -250kJ\Delta H }^{ \circ }_{ combustion }$ of ${ C }_{ graphite }=-390kJ/mole$ and ${ \Delta H }^{ \circ }_{ combustion }$ of ${ H }_{... | -1230 kJ/mole | general_qa | 226 |
The following is a multiple choice question (with answers).
===Question
What is the relationship between nurseries, kindergartens and families according to modern education theory?
===Choices
Cooperative relationship
Indifference
Competition
Mentorship
Supervision
Neglect
Friendship
Isolation
Antagonistic relationship... | Partnership | general_qa | 73 |
The following is a multiple choice question (with answers).
===Question
For the meshing cylindrical gears, when determining the tooth width, the width of the small gear is usually 5mm~10mm wider than the large gear. What is the main reason?
===Choices
To increase mechanical efficiency and smooth rotation
To strengthen... | To facilitate installation and ensure the length of the contact line | general_qa | 152 |
The following is a multiple choice question (with answers).
===Question
Suppose a fish has an average density of 1030 kg $m^{-3}$ , compared to the density of the surrounding water,1000 kg $m^{-3}$ . One way the fish can keep from slowly sinking is by using an air bladder (the density of air is 1.2 kg $m^{-3} )$ . What... | $$2.9\%$$ | general_qa | 252 |
The following is a multiple choice question (with answers).
===Question
After having several drinks in a bar, a man and his friend drove by a large home with its lights out. With the man sitting in the passenger seat, the friend pulled the car over. They were feeling drunk and aggressive from the drinks. After discussi... | No, because the facts indicate that he wasn't too intoxicated to form the necessary intent for burglary. | general_qa | 351 |
The following is a multiple choice question (with answers).
===Question
A parallel beam of wavelength $\lambda =4500\mathring { A }$passes through a long slit of width $2\times 10^{-4}m$. The angular divergence for which most of the light is diffracted is (in $\times 10^{-5}$) radian)
===Choices
\dfrac{7\pi}{6}
\dfrac... | $$\dfrac {5\pi}{4}$$ | general_qa | 177 |
The following is a multiple choice question (with answers).
===Question
If the signal amplitude $A_{0}$ is unchanged, and the roll down factor $\alpha$ is increased by 1 times, how many times will the transmission bandwidth increase? If the modulated signal amplitude $A_{0}$ is increased by 1 times, how many times is t... | $1;3$ | general_qa | 147 |
The following is a multiple choice question (with answers).
===Question
According to international trade practices, the packaging costs are ( ).
===Choices
Generally included in the price of goods, but must be negotiated separately
Generally included in the price of goods, and must be included in the shipping terms
Ge... | Generally included in the price of goods, no need to specify separately in the packaging terms | general_qa | 195 |
The following is a multiple choice question (with answers).
===Question
Compute $\int_{0}^{\frac{ 1 }{ 3 }} e^{-\frac{ x^2 }{ 3 }} \, dx$ with accuracy $0.00001$.
===Choices
0.32926
0.32922
0.32921
0.32920
0.32927
0.32924
0.32929
0.32923
0.32928
0.32925 | 0.32926 | general_qa | 142 |
The following is a multiple choice question (with answers).
===Question
If small-eyed male fruit flies are mated with normal-eyed female fruit flies, their offspring include 77 males with completely normal eyes and 78 females with normal eyes. What type of inheritance does the small-eye trait exhibit?
===Choices
Y-lin... | X-linked dominant | general_qa | 108 |
The following is a multiple choice question (with answers).
===Question
The figure shows an $L$ shaped body of mass $M$ placed on smooth horizontal surface. The block $A$ is connected to the body by means of an inextensible string, which is passing over a smooth pulley of negligible mass. Another block $B$ of mass $m$ ... | $$\displaystyle m_{A}=\frac{M+m}{\mu - 1}\:but\:\mu > 1$$ | general_qa | 445 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.