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
In agricultural production practices, which should be chosen to break seed dormancy, promote sex differentiation, and encourage bolting and flowering in plants?
===Choices
Ethylene
NAA
ABA
KT
IBA
Kinetin
Cytokinin
GA3
2,4-D
Auxin | GA3 | general_qa | 77 |
The following is a multiple choice question (with answers).
===Question
The Hall of Giants is one of the most famous mural rooms in which palace?
===Choices
Kensington Palace
Dolmabahçe Palace
Dapest Palace
Blenheim Palace
Palacio Nacional da Pena
Topkapi Palace
Catherine Palace | Dapest Palace | general_qa | 70 |
The following is a multiple choice question (with answers).
===Question
The reaction of Br2(g) with Cl2(g) to form BrCl(g) has an equilibrium constant of 15.0 at a certain temperature. If 10.0 grams of BrCl is initially present in a 15.0-liter reaction vessel, what will the concentration of BrCl be at equilibrium?
===... | 3.8 × 10^-3 mol/L | general_qa | 220 |
The following is a multiple choice question (with answers).
===Question
Barometers are made of two capillary tubes of radii $1.44\times 10^{-3}m$ and $7.2\times 10^{-4}$ respectively. If the height of a liquid in narrow tube is $0.2\ m$ more than the height of it in broad tube, then what will be the exact pressure diff... | $$1860\ Nm^{-2}$$ | general_qa | 273 |
The following is a multiple choice question (with answers).
===Question
Ten hours after irradiation ceased, the radioactivity of the sample in which Ba$^{140}$ and its decay product La$^{140}$ coexist is $2 \times 10^{3}$ counts per minute. Assuming the counting efficiencies of Ba$^{140}$ and La$^{140}$ are the same, c... | 1764 pulses/minute | general_qa | 190 |
The following is a multiple choice question (with answers).
===Question
At the interface between air $( \mu_{\mathrm{r}} = 1 )$ and soft iron $( \mu_{\mathrm{r}} = 7000 )$, the angle between the magnetic flux density in the soft iron and the normal to the interface is $85^{\circ}$. What is the angle between the magneti... | $$
5. 6^{\prime}
$$ | general_qa | 202 |
The following is a multiple choice question (with answers).
===Question
Compared with compliance, identification goes deeper. It is not controlled by external pressure. What are certain characteristics of behavior?
===Choices
Routine and predictability
Spontaneity and impulsiveness
Internalization and volitionality
Se... | Self-awareness, initiative and stability | general_qa | 102 |
The following is a multiple choice question (with answers).
===Question
Red-green color blindness is determined by an X-linked recessive allele. Assuming a population in Hardy-Weinberg equilibrium, where 1 in 10 males is colorblind, what would happen?
===Choices
The frequency of the color blindness gene is approximate... | The proportion of color blindness in women is approximately 1/10 that of men. | general_qa | 255 |
The following is a multiple choice question (with answers).
===Question
A spool of inner radius $R$ and outer radius $3R$ has a moment of inertia $ = MR^2 $ about an axis passing through its geometric centre, where $M$ is the mass of the spool. A thread wound on the inner surface of the spool is pulled horizontally wit... | $$ 16 m/s^2 $$ | general_qa | 223 |
The following is a multiple choice question (with answers).
===Question
Let X₁, X₂,..., $X_m$ be a simple random sample from a binomial distribution population B(n,p), with X and $S^{2}$ respectively being the sample mean and sample variance. If $X + kS^{2}$ is an unbiased estimator of $np^2$, then k = ___.
===Choices... | -1 | general_qa | 109 |
The following is a multiple choice question (with answers).
===Question
Let $f_1, \dots, f_{10}$ be bijections of the set of integers such that for each integer $n$, there is some composition $f_{i_1} \circ f_{i_2} \circ \cdots \circ f_{i_m}$ of these functions (allowing repetitions) which maps 0 to $n$. Consider the s... | 512 | general_qa | 277 |
The following is a multiple choice question (with answers).
===Question
What is the change in the ratio of consumer consumption to accumulated wealth according to the life cycle hypothesis?
===Choices
Before and after retirement, this ratio decreases gradually.
Before and after retirement, this ratio remains unchanged... | Before retirement, this ratio increases, but after retirement, it decreases. | general_qa | 146 |
The following is a multiple choice question (with answers).
===Question
Consider a two-stage cascade refrigeration system operating between the pressure limits of 0.8 and 0.14 MPa. Each stage operates on an ideal vapor-compression refrigeration cycle with refrigerant-134a as the working fluid. Heat rejection from the l... | 4.46 | general_qa | 215 |
The following is a multiple choice question (with answers).
===Question
For all positive integers $n$ , let $1=c_1<c_2<...<c_k=n$ be the positive integer factors of $n$ . Define the function $f$ as follows: $f(1)=1$ , and for all integers $n>1$ the equation $2020f(n) = \displaystyle\sum_{i=1}^{k} f(c_i)$ holds true. Th... | 82 | general_qa | 241 |
The following is a multiple choice question (with answers).
===Question
The result of the intergral
$$
\int_{-x}^{x} \Bigl[ t^{2}+\operatorname{c o s} ( \pi t ) \Bigr] \delta( t \!-\! 1 ) \mathrm{d} t
$$ is( ).
===Choices
cos(πx)
1 + cos(π)
1 + sin(π)
sin(π)
0
x^2
sin(πx)
x^2 + cos(πx)
cos(π)
π^2 | 0 | general_qa | 131 |
The following is a multiple choice question (with answers).
===Question
Calculate the saturation concentration of oxygen in water exposedto dry air at 1 atm. and 25°C. Given the Henry's constantfor dissolved oxygen in water at 25°C = 4.12 × 10^9 [(Pa) / (mole of O_2/total mole of solution)]
===Choices
10.2 [(mg of O_2... | 9.1792 [(mg of O_2) / (liter of solution)] | general_qa | 252 |
The following is a multiple choice question (with answers).
===Question
Two identical current carrying coaxial loops, carry current I in opposite sense. A simple amperian loop passes through both of them once. Calling the loop as C, then which statement is correct?
===Choices
the value of $\oint\bar H. \bar {dl} $ is ... | there may be a point on C where B and $dl$ are parallel. | general_qa | 237 |
The following is a multiple choice question (with answers).
===Question
Which of the following twin crystals is most common in plagioclase?
===Choices
Swallowtail Twin Crystals
Cathedral Twin Crystal
Kasbah Twin Crystal
Lattice Twin Crystal
Barrier Twin Crystal
Matrix Twin Crystal
Twin grid crystal
Contact Twin Crysta... | Carna Twin Crystal | general_qa | 82 |
The following is a multiple choice question (with answers).
===Question
Where does the special structure of the canal system exist?
===Choices
myriapod
mollusk
nematode
chordate
echinoderm
annelid
platyhelminth
arthropod
poriferan
cnidarian | poriferan | general_qa | 70 |
The following is a multiple choice question (with answers).
===Question
Module ( ) is standard for straight-toothed cylindrical gears, module ( ) is standard for helical cylindrical gears, and module ( ) is standard for straight-toothed bevel gears.
===Choices
Above; Below; Middle section
Internal; External; Front-end... | End face; Flange face; Large end | general_qa | 132 |
The following is a multiple choice question (with answers).
===Question
What are the year and month when Europe approved nirsevimab?
===Choices
September 2022
March 2023
February 2023
October 2022
November 2022
December 2022
June 2022
January 2023
April 2023
August 2022 | November 2022 | general_qa | 100 |
The following is a multiple choice question (with answers).
===Question
In leveling, if the reading at the backsight point A is large and the reading at the foresight point B is small, then ( ).
===Choices
The instrument is closer to Point B than Point A.
The height of points A and B depends on the instrument height.
... | Point A is lower than Point B. | general_qa | 153 |
The following is a multiple choice question (with answers).
===Question
Clinically, adults' body types are categorized into three types: the ______ type, the ______ type, and the ________ type.
===Choices
slight, tough, customary
skinny, stout, normal
ectomorphic, mesomorphic, endomorphic
lean, muscular, balanced
thin... | asthenic, hypersthenic, normosthenic | general_qa | 122 |
The following is a multiple choice question (with answers).
===Question
What level of war do strike Group and Expeditionary Strike Group commanders generally operate at?
===Choices
Collaborative
Supportive
Operational
Defensive
Directive
Tactical
Administrative
Coordinative
Strategic
Logistical | Tactical | general_qa | 64 |
The following is a multiple choice question (with answers).
===Question
In which month and year was it reported that the German Defense Ministry planned to replace its Tornado aircraft with a purchase of 30 Boeing F/A-18E/F Super Hornets, 15 EA-18G Growlers, and 55 Eurofighter Typhoons?
===Choices
July 2020
May 2020
M... | April 2020 | general_qa | 145 |
The following is a multiple choice question (with answers).
===Question
Observing the tissue structure of Scutellaria baicalensis, in addition to the presence of stone cells in the cork layer, scattered stone cells in the cortex, and the formation of a ring by the cambium, what else can be observed?
===Choices
A ring ... | A ring of lignified cells is present at the center of the old root. | general_qa | 159 |
The following is a multiple choice question (with answers).
===Question
The dry arcing distance of a 110kV rod-shaped insulator is 1m. According to national standards, calculate the margins it has during impulse and power frequency dry tests. If, during a rain test, the air gap and distance on the wet surface are 40cm ... | $$
221\%,~3 9 0. \ 6 7\%,~3 9 0. \ 6 7\%
$$ | general_qa | 463 |
The following is a multiple choice question (with answers).
===Question
Piaget believes that there are four main factors affecting psychological development, among which the decisive factor of psychological development is ___.
===Choices
Practice and gain experience
Peer interaction
Genetic inheritance
Emotional suppo... | Balance | general_qa | 75 |
The following is a multiple choice question (with answers).
===Question
Given that the rest mass of an electron is $9.11 \times 10^{-31} \mathrm{kg}$, $1.0 \mathrm{eV}=1.60 \times 10^{-19} \mathrm{J}$, what is its speed when the electron's kinetic energy is 1,000,000 eV?
===Choices
$$
2. 9 2 \times1 0^{8} \mathrm{m / ... | $$
2. 8 2 \times1 0^{8} \mathrm{m / s}
$$ | general_qa | 348 |
The following is a multiple choice question (with answers).
===Question
A slide projector designed for 35-mm slides projects a picture on a screen 40 in by 60 in, 10 ft away. What is the focal length of the lens?
===Choices
2.00 inches
2.69 inches
1.38 inches
2.95 inches
5.0 inches
1.75 inches
3.25 inches
3.5 inches
B... | 2.69 inches | general_qa | 124 |
The following is a multiple choice question (with answers).
===Question
In international business negotiations, businessmen who have a negotiation style that emphasizes developing interpersonal relationships are usually ( ).
===Choices
Indian businessmen
American businessmen
Russian businessmen
Canadian businessmen
Br... | Japanese businessmen | general_qa | 69 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is the coordination sequence for a node of type V1 in the "krs" 2-dimensional tiling (or net). Given the input x_list (a series of values): [47, 48, 49, 50, 51, 52, 53, 54, 55, 56], determine the c... | [222, 190, 230, 232, 206, 240, 250, 214, 258, 260] | general_qa | 614 |
The following is a multiple choice question (with answers).
===Question
On which day, month, and year was the instrument Low Energy Gamma-Ray Imager (LEGRI) activated after it was successfully launched on a Pegasus XL rocket in 1997?
===Choices
May 17, 1997
May 19, 1997
May 23, 1997
May 20, 1997
May 16, 1997
May 25, 1... | May 19, 1997 | general_qa | 166 |
The following is a multiple choice question (with answers).
===Question
A 3-phase line consists of three 0000 solid conductors placed at the corners of an equilateral triangle, 4 ft on a side. Determine the reactance drop per conductor per mile with 120-amp 25-cycle alternating current.
===Choices
25 volts
35 volts
30... | 33.8 volts | general_qa | 120 |
The following is a multiple choice question (with answers).
===Question
The interaction between the economic base and the superstructure constitutes the contradictory movement of both, which is extremely complex in actual operation. Specifically, it is manifested in
===Choices
In the relationship between economic base... | In the relationship between economic bases and superstructures of the same nature, the imperfect parts of the superstructure, and the parts that do not reflect the requirements of the economic base, will be in contradiction with the economic base. | general_qa | 487 |
The following is a multiple choice question (with answers).
===Question
What is a Pacinian corpuscle?
===Choices
Sensory structure for vibration
Conforming to the body
Telomere
Specialized cell for movement
The condensed X chromosome
Giant Chromosomes
Structure within mitochondria
Modified sweat gland unit
Immune resp... | The condensed X chromosome | general_qa | 80 |
The following is a multiple choice question (with answers).
===Question
The function $f(x,y,z)=xyz$ satisfies the condition $ frac{1}{x}+frac{1}{y}+frac{1}{z}=frac{1}{a} text{(}x gt 0,y gt 0,z gt 0text{)}$
===Choices
The minimum point is $(2a, 3a, 3a)$
The maximum point is $(3a, 3a, 3a)$
The minimum point is $(2a, 2a,... | The minimum point is $(3a, 3a, 3a)$ | general_qa | 245 |
The following is a multiple choice question (with answers).
===Question
Given that $$\mathrm{F} ( z ) \ =3 z / \ ( 2 z^{2}-5 z+2 )$$ is the unit Z transformation of the discrete signal f(k), what is the value of f(1)?
===Choices
-2/5
-1/2
5/2
3/2
-5/2
2/3
-2/3
2/5
-3/2
1/2 | 3/2 | general_qa | 112 |
The following is a multiple choice question (with answers).
===Question
The acceleration of an electron in the first orbit of the hydrogen atom $(n =1)$ is :
===Choices
$$\dfrac{h^2}{\pi^2m^2r^3}$$
$$\dfrac {2\pi^2kme^2Z}{\eta h}$$
\dfrac{h^2}{6\pi m^2r^3}
\dfrac{h^2}{2\pi^2m^2r^3}
\dfrac{h^2}{5\pi m^2r^3}
\dfrac{h^2}... | $$\dfrac{h^2}{4\pi m^2r^3}$$ | general_qa | 229 |
The following is a multiple choice question (with answers).
===Question
Which of the following are the conditions for the simple reproduction of total social capital? (Choose the option that includes all the correct statements)
I. I (v+m) = II c
II. I (c+v+m) = I c + II c
III. II (c+v+m) = I (v+m) + II (v+m)
IV. I (c+v... | I, II, and III | general_qa | 184 |
The following is a multiple choice question (with answers).
===Question
Find the zeros of $f(x) = (2 - x)^4 + (2 \cdot x - 1)^4 - (x + 1)^4$.
===Choices
x_1=2, x_2=1.5
x_1=2, x_2=0.375
x_1=2, x_2=0.875
x_1=2, x_2=0.75
x_1=2, x_2=0.5
x_1=2, x_2=0.625
x_1=2, x_2=0.6
x_1=2, x_2=0.4
x_1=2, x_2=0.25
x_1=2, x_2=1 | x_1=2, x_2=0.5 | general_qa | 198 |
The following is a multiple choice question (with answers).
===Question
The following set of functions is linearly dependent in the domain ( ).
===Choices
(sin x cos x, 2 sin x cos x + sin 2x)
(sin x, cos x)
(tan x, cot x)
(sin x cos x, 2 sin x cos^2 x)
(sin x cos x, sin 2x)
(sin x cos x, 2 sin x cos x)
(sec x, csc x)... | (sin x cos x, sin 2x) | general_qa | 150 |
The following is a multiple choice question (with answers).
===Question
Is the following method for registering events correct?
===Choices
document.getElementById("test").on("mousemove", function(e){});
document.getElementById("test").attachEvent("onclick", function(e){});
document.getElementById("test").bind("click",... | document.getElementById("test")["onmousemove"] = function(e){}; | general_qa | 113 |
The following is a multiple choice question (with answers).
===Question
To know the cone resistance, it is first forced down to __ depth.
===Choices
8 cm
10 cm
30 cm
20 cm
11 cm
15 cm
25 cm
8 mm
14 cm
18 cm | 8 cm | general_qa | 69 |
The following is a multiple choice question (with answers).
===Question
When image grayscale quantization is encoded with 6 bits, the quantization level is( ).
===Choices
128
4
64
32
8
256
1024
16
512
1 | 64 | general_qa | 67 |
The following is a multiple choice question (with answers).
===Question
The existing relational model R (student number, name, course code, course name, course grade) is decomposed and normalized to the third normal form. The following ( ) is the most correct normalized result.
===Choices
R1(student number, name) R2(s... | R1(student number, name) R2(course code, course name)R3(student number, course code, course grade) | general_qa | 282 |
The following is a multiple choice question (with answers).
===Question
10 g of argon gas is compressed isothermally and reversibly at a temperature of $27^{o}C$ from 10 L to 5 L. Calculate q and $\Delta H$ for this process. (Atomic weight of $Ar=40 u$)
===Choices
+103.99 cal, 0
-103.99 cal, 0
+103.99 cal, 3 J
-103.99... | +103.99 cal, 0 | general_qa | 201 |
The following is a multiple choice question (with answers).
===Question
Consider the following premises about the state of Sorority World.
Dana likes Cody.
Abby does not like Dana.
Dana does not like Abby.
Bess likes Cody or Dana.
Abby likes everyone that Bess likes.
Cody likes everyone who likes her.
Nobody likes hers... | No.
No.
Yes. | general_qa | 494 |
The following is a multiple choice question (with answers).
===Question
The child is 12 years old, CPR has been going on for 20 minutes and requires endotracheal intubation, the preferred I.D. of the endotracheal tube to be used is ____.
===Choices
7.5mm
6.5mm
5.5mm
6mm
7mm
8mm
10mm
5mm
9mm | 7mm | general_qa | 97 |
The following is a multiple choice question (with answers).
===Question
A count of corn $\mathbf{F}_{2}$ kernel color revealed that one of the 252 total kernels in one sample was the same as the ancestor, and two of the 507 total kernels in the other sample were the same as the ancestor. There are ___ pairs of genes co... | 4 | general_qa | 104 |
The following is a multiple choice question (with answers).
===Question
In the information system development, should first design ().
===Choices
Input
Test Plan
System Architecture
Database Structure
Interface Layout
User Permissions
Storage
Encoding Scheme
Safety Strategy
Output | Output | general_qa | 54 |
The following is a multiple choice question (with answers).
===Question
During which years did Pedro Antonio de Aragón serve as Viceroy of Catalonia?
===Choices
1642-1644
1642-1647
1641-1644
1641-1645
1642-1646
1641-1643
1643-1644
1643-1645
1642-1643
1642-1645 | 1642-1644 | general_qa | 134 |
The following is a multiple choice question (with answers).
===Question
A multi-span greenhouse in the Beijing area utilizes 8mm polycarbonate (PC) double-layer hollow panels, spanning 5 compartments in the east-west direction with each compartment being 6.4m wide. In the north-south direction, there are a total of 6 b... | 3 units | general_qa | 290 |
The following is a multiple choice question (with answers).
===Question
A nugget of gold and quartz was found to contain x g of gold and y g of quartz and has density d if the densities of gold and quartz are $d_{1}$ and $d_{2}$ respectively then the correct relation is :
===Choices
$$\dfrac{x + y}{d} + \dfrac{x}{d_{1... | $$\dfrac{x}{d_{2}} + \dfrac{y}{d_{1}} = \dfrac{x + y}{d}$$ | general_qa | 438 |
The following is a multiple choice question (with answers).
===Question
The payment methods for workers' welfare and insurance are ().
===Choices
cash payment and deferred payment
deferred compensation and direct deposit
payment in kind and cash payment
electronic payment and deferred compensation
payment in services ... | payment in kind and deferred payment | general_qa | 97 |
The following is a multiple choice question (with answers).
===Question
A plot of the density versus the pressure for air at $27^o$C has the limiting slope$=1.2\times 10^{-5}$kg $m^{-3}Pa^{-1}$. The composition of air(contains only $N_2$ and $O_2$) in volume ratio of $N_2$ and $O_2$ is:($R=8.0$ J/K-mol)
===Choices
45:... | $$50:50$$ | general_qa | 172 |
The following is a multiple choice question (with answers).
===Question
A ray of light along the line $x = 3 $ is reflected at the ellipse $\dfrac{{{x^2}}}{{25}} + \dfrac{{{y^2}}}{{16}} = 1$, then the slope of the reflected ray is
===Choices
$$\dfrac{4}{{15}}$$
$$\dfrac{3}{15}$$
$$\dfrac{3}{{10}}$$
$$\dfrac{3}{{20}}$$... | $$\dfrac{4}{{15}}$$ | general_qa | 200 |
The following is a multiple choice question (with answers).
===Question
From the analysis spectrometer, an energy of $E=2 \mathrm{GeV}$ K meson beam is obtained. How far does it travel before the beam intensity decays to $10\%$ of its original value? Assume the rest lifetime of the K meson is $\tau_{0}=1.2 \times 10^{-... | 33m | general_qa | 135 |
The following is a multiple choice question (with answers).
===Question
Visible light having $a$ wavelength of 5 × $10^{-7}$ m appears green. Compute the frequency and energy of
a photon of this light.
===Choices
$$
2. 7 6 \, \times\, 1 0^{-1 9} \, \mathrm{J} \ \ ( 1. 8 4 \, \mathrm{c V} )
$$
$$
1. 9 7 \, \times\, 1 0... | $$
3. 9 8 \, \times\, 1 0^{-1 9} \, \mathrm{J} \ \ ( 2. 4 8 \, \mathrm{c V} )
$$ | general_qa | 560 |
The following is a multiple choice question (with answers).
===Question
calculate the [Cr] concentration in the molten iron under basic slag with $w(\mathrm{CaO}) / w(\mathrm{SiO}_{2}) = 2.5$ at the temperature of $1600~\degree\mathrm{C}$.
===Choices
$$
0. 4 3 \%
$$
$$
0. 7 1 \%
$$
$$
1. 1 7 \%
$$
$$
0. 6 2 \%
$$
$$
1... | $$
0. 5 4 \%
$$ | general_qa | 193 |
The following is a multiple choice question (with answers).
===Question
20 gm of a binary electrolye ( molecular weight = 100 ) are dissolved in 500 gm of water. The freezing point of the solution is - $0.74^{\circ}C, K_{f}= 1.86 K $ $molality ^{-1}$ The degree of ioisation of the electrolyte is
===Choices
0.74 %
0... | 0 % | general_qa | 141 |
The following is a multiple choice question (with answers).
===Question
The pH of a solution obtained by mixing 100 ml of 0.2 M ${ CH }_{ 3 }COOH$ with 100 ml of 0.1 M $NaOH$ will be: ($p{ K }_{ a }$ for ${ CH }_{ 3 }COOH$ = 4.74 )
===Choices
8.87
8.77
8.47
8.54
8.27
4.74
9.1
8.37
8.67
8.57 | 8.87 | general_qa | 140 |
The following is a multiple choice question (with answers).
===Question
Under the Federal Rules of Civil Procedure, which of the following pleadings would potentially allow a defendant to dispose of a case before trial, based on a new defense, after the time for pleadings and amendments has passed?
===Choices
A motion... | A motion for judgment on the pleadings, based on failure to state a claim upon which relief may be granted. | general_qa | 246 |
The following is a multiple choice question (with answers).
===Question
After the westerly trough passes through the Tibetan Plateau, into which two branches does it split?
===Choices
The northern branch trough and the eastern branch trough
The southern branch trough and the western branch trough
The eastern branch tr... | The northern branch trough and the southern branch trough | general_qa | 117 |
The following is a multiple choice question (with answers).
===Question
Which of the following options is not a feasible goal or international standard for regulating carbon dioxide emissions?
===Choices
To invest in technological development in the developed countries only.
To limit and reduce greenhouse gases (GHG) ... | To invest in technological development in the developing countries. | general_qa | 142 |
The following is a multiple choice question (with answers).
===Question
What is the spherical excess, if the area of the triangle is given as 32sq. m with a radius of 65m?
===Choices
1640.24 m
1500.42 m
1526.24 m
1652.24 m
1550.24 m
1562.42 m
1600.42 m
1602.24 m
1562.24 m
1662.42 m | 1562.24 m | general_qa | 136 |
The following is a multiple choice question (with answers).
===Question
If $K_1$ and $K_2$ are the equilibrium constants at temperature $T_1$ and $T_2$, where $T_2 > T_1$, then :
===Choices
$K_2 = K_1$ when $\Delta H$ is -ve
$K_2 < K_1$ when $\Delta H$ is 0
$K_2 > K_1$ when $\Delta H$ is -ve
$K_2 > K_1$ when $\Delta H... | $K_2 < K_1$ when $\Delta H$ is -ve | general_qa | 216 |
The following is a multiple choice question (with answers).
===Question
In the analysis and assessment of situations, the analysis of battlefield environment mainly includes () environment, () environment, () environment.
===Choices
Geographic, natural, information
Social, cultural, transportation
Natural, social, inf... | Natural, social, information | general_qa | 104 |
The following is a multiple choice question (with answers).
===Question
Which type of cell is most suitable for studying lysosomes?
===Choices
Cardiomyocytes
Muscle cells
Cells with no lysosomal activity
Epidermal cells
Bacterial Cell
Autophagic cells with phagocytic function
Neural cells
Red blood cells
Bone cells
Li... | Autophagic cells with phagocytic function | general_qa | 78 |
The following is a multiple choice question (with answers).
===Question
Characterizing the dynamic elements of groundwater involves water level, ____, ______, and ______.
===Choices
water movement, soil permeability, groundwater speed
Rock hardness, crustal deformation, heat flow value
water quantity, water chemical c... | water quantity, water chemical composition, water temperature | general_qa | 139 |
The following is a multiple choice question (with answers).
===Question
Find the solution for the equationX=AX+bu;X(0) = X_0 where A=\vert10\vert,b=\vert1\vert,X_0 =\vert- 1\vert, \vert- 22\vert\vert2\vert\vert0\vert u(t) = \delta(t) (impulse function).
===Choices
-3
0
10
-10
-1
1
3
22
-2
2 | 0 | general_qa | 120 |
The following is a multiple choice question (with answers).
===Question
Administrative organization design is one of the necessary means for effective management of enterprises. So in addition to streamlining and unification, what is another requirement for the design of administrative organizations?
===Choices
Sustai... | Highly Efficient | general_qa | 90 |
The following is a multiple choice question (with answers).
===Question
Calculate the de Broglie Wavelength of a tennis ball of mass 57 g traveling 25 m/s in meters.
===Choices
4.7e-34
8.9e-36
6.1e-33
5.5e-33
Both 4.7e-34 and 4.7 * 10^-34 are correct
1.5e-35
2.3e-30
4.7 * 10^-34
3.0e-32
1.2e-30 | Both 4.7e-34 and 4.7 * 10^-34 are correct | general_qa | 142 |
The following is a multiple choice question (with answers).
===Question
When a soap bubble film is illuminated with green light of wavelength $λ=0.5 nm$ and observed at an angle of $30°$ to the plane of the film, the film appears brightest. Assuming the interference order is the lowest at this angle and given that the ... | $660nm$ | general_qa | 169 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is the number of positive integers m for which the harmonic mean of m and n is a positive integer. Given the input x_list (a series of values): [81, 82, 83, 84, 85, 86, 87, 88, 89, 90], determine t... | [9, 6, 3, 30, 9, 6, 9, 13, 3, 33] | general_qa | 417 |
The following is a multiple choice question (with answers).
===Question
Which of the following sensors belongs to optical scanners?
===Choices
IMU
MSS
LIDAR
CCD
HRV
INS
RADAR
SAR
GPS
SONAR | MSS | general_qa | 55 |
The following is a multiple choice question (with answers).
===Question
A quasar consumes l solar mass of material per year converting 15 percent of it directly into energy. What is the quasar's luminosity, in solar units?
===Choices
$$
1. 5 {\times} 1 0^{1 2} L_{\odot}
$$
$$
1. 8 {\times} 1 0^{1 2} L_{\odot}
$$
$$
3.... | $$
2. 2 {\times} 1 0^{1 2} L_{\odot}
$$ | general_qa | 311 |
The following is a multiple choice question (with answers).
===Question
For a system with specified U, N, and V, the distribution with the maximum number of microstates is the most probable distribution. What is the theoretical basis for this conclusion?
===Choices
Minimum Energy Assumption
Constant Probability Theory... | Equal Probability Assumption | general_qa | 102 |
The following is a multiple choice question (with answers).
===Question
Which environmental factor is crucial for the growth of tea plants?
===Choices
Rich nutrient soil
High humidity
Cold temperatures
Low light
High elevation
Minimal sunlight
Sandy soil
Regular droughts
Strong winds
Stable air pressure | High humidity | general_qa | 63 |
The following is a multiple choice question (with answers).
===Question
Consider the following two reactions:(i) Propene + $H_2\rightarrow$ Propane; $\Delta H_1$(ii) Cyclopropane + $H_2\rightarrow$ Propane; $\Delta H_2$Then, $|\Delta H_2$ - $\Delta H_1|$ will be:
===Choices
$$|3BE_{C-C} - 2BE_{C=C}|$$
$$|2BE_{C=C}-BE_... | $$|2BE_{C-C}-BE_{C=C}|$$ | general_qa | 222 |
The following is a multiple choice question (with answers).
===Question
Which hydraulic structure is used to control the flow of water in a river, often to prevent flooding?
===Choices
Spillway
Barrage
Levee
Weir
Groin
Bulkhead
Embankment
Sluice
Retention
Jetties | Weir | general_qa | 71 |
The following is a multiple choice question (with answers).
===Question
The concentration of hydrogen atoms in intergalactic space at a temper-ature of 7.8 × 10^50K is about 1 atom per 100 liter. Assuming the col-lision diameter of the hydrogen atom is 2.0\AA calculate a) the mean free path of an atom in light-years. b... | mean free path is 59 light-yr and time between collisions is 1.382 × 10^5 yr | general_qa | 376 |
The following is a multiple choice question (with answers).
===Question
A pulsating spherical source with a radius of 0.01 m emits spherical waves at 14 kHz into water. If it is placed at the center of a spherical sealed container filled with oil, with a container radius of 6 cm, whose shell is very thin and the effect... | $$
5. 1 4 \ \mathrm{w}, 0. 1 7 \ \mathrm{m / s }.
$$ | general_qa | 505 |
The following is a multiple choice question (with answers).
===Question
Which of the following statements about selecting trees or shrubs for use as fillers in ornamental horticulture are incorrect? (Include all incorrect options.)
I. Trees with faster growth rates always require less maintenance compared to slower-gro... | I, II, IV, and VII | general_qa | 301 |
The following is a multiple choice question (with answers).
===Question
A truck moving at $\dfrac{250}{9} ms^{-1}$ carries a steel grider which rests on it wooden floor. The minimum time in which the truck can come to a stop without the grider moving forward is (Given : $\mu_S= 0.5$)
===Choices
5.7 s
4.2 s
3.5 s
3 s
2... | 3 s | general_qa | 120 |
The following is a multiple choice question (with answers).
===Question
When $0.1\ mol$ arsenic acid, $H_{2}AsO_{4}$ is dissolved in $1L$ buffer solution of $pH = 4$, which of the following hold good? $K_{1} = 2.5\times 10^{-4}, K_{2} = 5\times 10^{4}, K_{3} = 2\times 10^{-23}$ for arsenic acid $['< <'$ sign denotes th... | $$[AsO_{4}^{2-}] < < [HAsO_{4}^{2-}]$$ | general_qa | 337 |
The following is a multiple choice question (with answers).
===Question
Consider a uniform spherical charge distribution of radius $R_1$ centered at the origin $O$. In this distribution, a spherical cavity of radius ${R}_{2}$, centre at $P$ with distance $OP=\alpha=R_1-R_2$ is made. If the electric field inside the cav... | $E$ is uniform and both its magnitude and direction depend on $ {a}$ | general_qa | 306 |
The following is a multiple choice question (with answers).
===Question
What does suitability mean in ecology?
===Choices
Coordination of Movements in Grouped Species.
Changes in Population Dynamics Across Seasons.
High Mobility of Animals in Specific Environments.
The most suitable foods for animals' living habits an... | Adaptation of Single Animal Behaviors. | general_qa | 124 |
The following is a multiple choice question (with answers).
===Question
What is the value of the gravitational potential $\Phi_{\mathrm{a}}$?
===Choices
$\Omega^{2}$
$-2 \Omega^{2}$
$-\Omega^{2}$
0
$-4 \Omega^{2}$
$-3 \Omega^{2}$
$2 \Omega^{2}$ | 0 | general_qa | 84 |
The following is a multiple choice question (with answers).
===Question
Let $p$ be an odd prime number such that $p \equiv 2 \pmod{3}$. Define a permutation $\pi$ of the residue classes modulo $p$ by $\pi(x) \equiv x^3 \pmod{p}$. Given that $\pi$ is an even permutation, what value must p be congruent to modulo 4?.
===... | 3 | general_qa | 110 |
The following is a multiple choice question (with answers).
===Question
Solve the integral:
$$
\int \left(\frac{ x+4 }{ x-4 } \right)^{\frac{ 3 }{ 2 }} \, dx
$$
===Choices
C + sqrt((x+4)/(x-4)) * (x-20) - 12 * ln(abs((sqrt(x-4) - sqrt(x+4)) / (sqrt(x-4) + sqrt(x+4))))
C + sqrt((x+4)/(x-4)) * (x-21) - 12 * ln(abs((sqrt... | C + sqrt((x+4)/(x-4)) * (x-20) - 12 * ln(abs((sqrt(x-4) - sqrt(x+4)) / (sqrt(x-4) + sqrt(x+4)))) | general_qa | 569 |
The following is a multiple choice question (with answers).
===Question
A Pitot tube on an airplane flying at standard sea level reads $1. 0 7 \times$ $1 0^{5} \, \mathrm{N / m}^{2}$ . What is the velocity of the airplane?
===Choices
$$
8 4. 3 \ {\frac{\mathrm{m}} {\mathrm{s e c}}}
$$
$$
9 8. 8 \ {\frac{\mathrm{m}} {\... | $$
9 8. 8 \ {\frac{\mathrm{m}} {\mathrm{s e c}}}
$$ | general_qa | 323 |
The following is a multiple choice question (with answers).
===Question
A string $60\ cm$ in length rigidly held at two ends sustains a standing wave $y = A\cos kx \sin \omega t$. Find the overtone to which those oscillations corresponds, if such magnitude of displacement amplitude that its value is $\dfrac {\sqrt {3}}... | IV overtone | general_qa | 142 |
The following is a multiple choice question (with answers).
===Question
The electrical resistance $R$ produced by wiring resistors $R_{1}$ and $R_{2}$ in parallel can be calculated from the formula $\frac{ 1 }{ R }=\frac{ 1 }{ R_{1} }+\frac{ 1 }{ R_{2} }$. If $R_{1}$ and $R_{2}$ are measured to be $7$ ohm and $6$ ohm r... | 0.02514793 | general_qa | 247 |
The following is a multiple choice question (with answers).
===Question
According to the 2013 Honomichi Top 50 report, what is the global ranking of the NPD Group as a market research company?
===Choices
7
18
29
10
8
9
17
12
19
11 | 9 | general_qa | 76 |
The following is a multiple choice question (with answers).
===Question
The discipline that studies the principles and techniques of forest tree breeding and the propagation of improved varieties, guided by the theory of genetic evolution, is called _______ science.
===Choices
silvicultural breeding techniques
genetic... | forest tree breeding | general_qa | 96 |
The following is a multiple choice question (with answers).
===Question
Evaluate the electron capture rate (18.4.14) numerically for extremely relativistic, degenerate electrons and freely escaping neutrinos is().
$$
\Gamma=\frac{2 \pi} {\hbar} \, \frac{G_{\mathrm{F}}^{2} C_{V}^{2} ( 1 \,+\, 3 a^{2} )} {\left( 2 \pi^{2... | $$
6. 2 9 \times1 0^{-4} \frac{1} {5} \left( \frac{\mu_{e}} {m_{e} c^{2}} \right)^{5} \mathrm{s}^{-1} \mathrm{p r oton^{-1}}
$$ | general_qa | 804 |
The following is a multiple choice question (with answers).
===Question
$N$ spin-1/2 particles are arranged in a straight line, and interactions occur only between nearest neighbors. When both neighboring spins are either up or down, the interaction energy between them is $J$. When one neighboring spin is up and the ot... | $$
2^{N} \mathrm{c o s h}^{N-1} \Big( \frac{J} {k T} \Big)
$$ | general_qa | 489 |
The following is a multiple choice question (with answers).
===Question
The principle adopted by Chinese marriage and family law regarding divorce is ()
===Choices
Principle of Cohabitation
Principle of Fault
Principle of Legal Separation
Principle of Irreconcilable Differences
No Mediation Principle
Principle of Amic... | Principles of Marriage Breakdown | general_qa | 98 |
The following is a multiple choice question (with answers).
===Question
An effusion cell has a circular hole of diameter $1.50 \mathrm{~mm}$. If the molar mass of the solid in the cell is $300 \mathrm{~g} \mathrm{~mol}^{-1}$ and its vapour pressure is $0.735 \mathrm{~Pa}$ at $500 \mathrm{~K}$, by how much will the mass... | 16 $\mathrm{mg}$ | general_qa | 180 |
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