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
Given an information rate of l $0^{6} \mathrm{\ b/s}$, what is the minimum channel bandwidth used to propagate this information with a 2PSK signal? What is the minimum channel bandwidth required to propagate this information with a QPSK signal?
==... | $10^{6} \, \mathrm{Hz} \,,5 \times10^{5} \, \mathrm{Hz}$ | general_qa | 393 |
The following is a multiple choice question (with answers).
===Question
In Alain Robbe-Grillet's works 'The Coffee Pot' and 'The Beach,' the narrator is neither a character or spokesperson within the story nor the author, but rather an observer akin to a creator or God, who remains entirely objective and makes no moral... | external focalization | general_qa | 121 |
The following is a multiple choice question (with answers).
===Question
A 10-year-old boy presents with superior quadrantanopia and headache. Which diagnosis is most likely ?
===Choices
Optic atrophy
Frontal lobe tumour
Parietal lobe lesion
Temporal lobe ischemia
Craniopharangioma
Pituitary adenoma
Temporal lobe tumou... | Temporal lobe tumour | general_qa | 104 |
The following is a multiple choice question (with answers).
===Question
When $5$ litres of a gas mixture of methane and propane is perfectly combusted at $0^o$C and $1$ atmosphere, $16$ litres of oxygen at the same temperature and pressure is consumed. The amount of heat released from this combustion in kJ $(\Delta H_{... | $$38$$ | general_qa | 168 |
The following is a multiple choice question (with answers).
===Question
On August 14, 1868, which newspaper reported that a 12-year-old boy killed a 23-foot-long giant snake with a scythe?
===Choices
Caledonian newspaper
Aberdeen Chronicle
Edinburgh Chronicle
Aberdeen Daily Record
Glasgow Herald
Aberdeen Herald
Edinbu... | Caledonian newspaper | general_qa | 103 |
The following is a multiple choice question (with answers).
===Question
A 73-year-old woman is brought to the emergency department because of a 1-day history of skin lesions. Initially, she experienced pain in the affected areas, followed by discoloration of the skin and formation of blisters. Four days ago, the patien... | Deficiency of a natural anticoagulant | general_qa | 277 |
The following is a multiple choice question (with answers).
===Question
A very long open cylindrical container of radius R = 5m, has two small holes at the bottom. Initially, the holes are closed and water is filled into the container. Now the container is rotated about its axis with an angular velocity $\omega =\sqrt{... | 20 m/s | general_qa | 222 |
The following is a multiple choice question (with answers).
===Question
In a liquid, there is an air bubble with a diameter of 1 mm. The viscosity of the liquid is 0.15 Pa·s, and the density is $0.9 \times 10^{3} \mathrm{kg/m}^{3}$. If this air bubble rises in water, what is its terminal velocity? (Take the density of ... | $$
\approx0. 6 {\mathrm{m / s}}
$$ | general_qa | 302 |
The following is a multiple choice question (with answers).
===Question
The silt from a certain harbor's sedimentation has properties of $\gamma=15.7 \, \mathrm{kN/m^{3}}$, $w=74\%$, and $d_{s}=2.70$. To clear the silt using a dredger, water must be used to mix the silt into a slurry with a 10% concentration (the soil ... | $$
8 4 5. 4 \times1 0^{3} {\mathrm{m}}^{3}
$$ | general_qa | 444 |
The following is a multiple choice question (with answers).
===Question
A company has built a new 200-square-meter factory building, and is now ready to arrange equipment for the production of a certain product. The company is now idle to produce 3 sets of equipment of four types of products A, B, C, D, and the daily p... | 520 | general_qa | 186 |
The following is a multiple choice question (with answers).
===Question
Most common side effect of 5-fluorouracil is :
===Choices
Bone marrow depression
G.I. toxicity
Cardiotoxicity
Mucositis
Neurotoxicity
Diarrhea and abdominal pain
Nausea and vomiting
Hepatotoxicity | G.I. toxicity | general_qa | 75 |
The following is a multiple choice question (with answers).
===Question
The first standard to be promulgated and implemented is the '____'.
===Choices
Basic Codes of Data Citation
Core Techniques of Document Referencing
Fundamental Guidelines of Source Attribution
Primary Rules of Source Verification
Basic Rules of Pa... | General Principles of Document Citation | general_qa | 94 |
The following is a multiple choice question (with answers).
===Question
What year was Guido Fanti elected as City Councilor of Bologna?
===Choices
1951
1954
1953
1955
1959
1960
1957
1952
1956
1958 | 1957 | general_qa | 82 |
The following is a multiple choice question (with answers).
===Question
The Spring Bloom is an annual phenomenon in the lakes and coastal oceans of New England. What characteristics of spring conditions foster these blooms?
===Choices
Rainfall increases in spring leading to lower temperature and less sunlight affectin... | Winter mixing brings nutrients to the surface.When temperatures rise and light increases in spring,the phytoplankton (followed by the zooplankton)bloom. | general_qa | 257 |
The following is a multiple choice question (with answers).
===Question
Among the following types of renal tubular degeneration, which damage occurs earliest?
===Choices
Medullary Sponge Appearance
Lipomatosis
Intracellular calcium salt deposition
Cellular Protein Accumulation
Basal Membrane Thickening
Water Metamorph... | Water Metamorphosis | general_qa | 95 |
The following is a multiple choice question (with answers).
===Question
Chinese Military Legal Institutions include?
I Military Judicial Organs
II Military Procuratorate Organs
III Military Trial Organs
IV Military Prisons
V Military Security Organs
VI Military Legislative Organs
===Choices
II,IV
III,V
VI,IV
I,V
V,VI
... | I,II,III,V,VI | general_qa | 101 |
The following is a multiple choice question (with answers).
===Question
The type of boring, used for making deep excavations is __.
===Choices
Cylindrical augers
Tunnel boring
Jet grouting
Sonic drilling
Wash boring
Vertical drilling
Core sampling
Hydraulic dredging | Cylindrical augers | general_qa | 63 |
The following is a multiple choice question (with answers).
===Question
The function $\psi(x, t)$ is a solution to the one-dimensional Schrödinger equation for a free particle with mass $m$. It is known that at the initial moment, the state is:
$$
\psi(x, 0) = A \mathrm{e}^{-x^{2} / a^{2}}
$$
Determine the probability ... | $$
\left( \frac{A a} {2 \hbar} \right)^{1 / 2} \mathrm{e}^{-\frac{a^{2} p^{2}} {4 \hbar^{2}}}
$$ | general_qa | 619 |
The following is a multiple choice question (with answers).
===Question
The most ideal structure for soil fertility among common soil aggregates is ____.
===Choices
Compact structure
Crystalline structure
Porous structure
Sand-based structure
Clay-dense structure
Layered structure
Fragmented structure
Aggregate struct... | Aggregate structure | general_qa | 71 |
The following is a multiple choice question (with answers).
===Question
Which structure between small intestinal epithelial cells can prevent nutrients from entering the bloodstream through the intercellular space?
===Choices
Gap Bridge
Gap junction
Close Connection
Plasmodesmata
Close Bridge
Desmosome
Cell folds
Base... | Close Connection | general_qa | 67 |
The following is a multiple choice question (with answers).
===Question
What metal's Greek name is the origin of Casiterides Island's name?
===Choices
Lead
Tin (Stannum, Incorrect Spelling)
Zinc
Tin
Bronze
Copper
Tin (Stannum)
Iron
Silver
Aluminum | Tin | general_qa | 71 |
The following is a multiple choice question (with answers).
===Question
The land area on the earth's surface is relatively fixed, and the soil has been formed for a long time; The gradual expansion of the occupied area and the increasing degradation of the land are indicative of soil resources
===Choices
Relative non-... | Relative non-renewability | general_qa | 108 |
The following is a multiple choice question (with answers).
===Question
Known signals
$$
x_{1} ( t )=\frac{\operatorname{s i n} 3 \pi t \operatorname{s i n} 2 \pi t} {\pi t^{2}} \,, \, \, \, x_{2} ( t )=\frac{\operatorname{s i n} \pi t} {\pi t}
.$$
After performing a unit impulse sampling on the signal $y(t)= \mathrm{x... | $\mathrm{T} < ( 1 / 6 )$ | general_qa | 335 |
The following is a multiple choice question (with answers).
===Question
The shell of the mussel is formed by the secretion of the mantle. Among them, the periostracum and the prismatic layer of the shell are secreted by the edge of the mantle, while the nacreous layer is secreted by the entire mantle. Therefore, what c... | The thickness of the stratum corneum and prismatic layer does not change, while the nacreous layer continues to thicken. | general_qa | 267 |
The following is a multiple choice question (with answers).
===Question
Developed from two fused carpels and separating into two fruit segments when mature, suspended at the top of a central stalk, like in fennel and angelica, is called ()
===Choices
bicarpellate berry
nut
caryopsis
dual achene
twin capsule
double sam... | double samara | general_qa | 93 |
The following is a multiple choice question (with answers).
===Question
The decomposition of a compound $P$, at temperature $T$ according to the equation $\displaystyle2P_{(g)}\rightarrow4Q_{(g)}+R_{(g)}+S_{(l)}$ is the first order reaction. After $30$ minutes from the start of decomposition in a closed vessel, the tot... | $P_{t}=379.55$ mm $Hg$ | general_qa | 354 |
The following is a multiple choice question (with answers).
===Question
At what temperature does a lamp (100 W, 200 V) work, if it is given that resistance of cold tungsten filament is $40\Omega $. Take $\alpha =3\times 10^{ -3 }/^{ o }C$ and $25^{ o }C$ as normal room temperature.
===Choices
$$3020^{ o }C$$
$$325^{ o... | $$3000^{ o }C$$ | general_qa | 196 |
The following is a multiple choice question (with answers).
===Question
After a time $t$ from the instant the sphere was placed on the belt, it starts pure rolling and moves with a velocity $v$ relative to the ground. Which of the following are correct expressions for $t$ and $v$?
===Choices
v =\dfrac {2v_0}{13}
$$v =... | $$v =\dfrac {2v_0}{7}$$ | general_qa | 199 |
The following is a multiple choice question (with answers).
===Question
General Manager: I advocate that both Wang and Jin should be promoted at least one person. Chairman of the Board of Understanding: I disagree. Which of the following, most accurately expresses the chairman's opinion?
===Choices
Only one of them sh... | Neither of them should be promoted. | general_qa | 137 |
The following is a multiple choice question (with answers).
===Question
Which of the following statements about global warming is correct?
===Choices
Beneficial for the development of grape cultivation in cold climate regions
Necessary for the advancement of banana farming in tropical regions
Favorable for the expansi... | Beneficial for the development of grape cultivation in cold climate regions | general_qa | 155 |
The following is a multiple choice question (with answers).
===Question
What are the earliest opera schools in Italy?
===Choices
Bologna opera school, Genoa opera school, Parma opera school
Reggio Emilia opera school, Lecce opera school, Ravenna opera school
Florentine opera school, Milan opera school, Turin opera sch... | Venetian opera school, Roman opera school, Naples opera school | general_qa | 182 |
The following is a multiple choice question (with answers).
===Question
What is the chemical formula for hydrocholesterol?
===Choices
C27H46O
C27H46O2
C27H46O1
C27H44O2
C27H45O2
C27H46O4
C27H48O2
C27H46O3
C27H47O2 | C27H46O2 | general_qa | 107 |
The following is a multiple choice question (with answers).
===Question
In the architecture of the distributed database system, the data storage site is determined according to the partitioning strategy, which is the ( ) of the distributed database system.
===Choices
Server allocation model
Fragment mode
Global struct... | Distribution mode | general_qa | 89 |
The following is a multiple choice question (with answers).
===Question
The "Record of Music" systematically discusses Confucian thoughts on rites and music, summarizing their functions and interrelations. Which of the following is not a related viewpoint?
===Choices
"Harmony is achieved through music, while order is ... | "All sounds arise from the human heart; the movements of the heart are influenced by external factors." | general_qa | 139 |
The following is a multiple choice question (with answers).
===Question
Subdural hematoma is due to rupture of -
===Choices
Communicating veins to superior sagittal sinus (bilaterally)
Communicating veins to inferior sagittal sinus
Communicating veins to transverse sinus
Communicating veins to cavernous sinus
Retroman... | Communicating veins to superior sagittal sinus | general_qa | 112 |
The following is a multiple choice question (with answers).
===Question
The indicator to measure the size of national debt from the perspective of the government's ability to repay principal and interest is ( ).
===Choices
State repayment obligation metric
Governmental financial strain index
National economic debt rep... | Fiscal debt repayment ratio | general_qa | 96 |
The following is a multiple choice question (with answers).
===Question
Humorous content in advertisements is likely to induce a better mood in the audience, and a good mood facilitates the understanding of brand information in the advertisement and forms a positive brand attitude. Which hypothesis or theoretical expla... | Mood Congruence Hypothesis | general_qa | 129 |
The following is a multiple choice question (with answers).
===Question
What is the MP of benzene if $\Delta_{fusion} = 9.95 \,kJ/mol$ anel $\Delta S_{fusion} = 35.7 \,J/k-mol$
===Choices
$$288.7^o C$$
$$283.7^o C$$
$$278.7^o C$$
$$283.7 \,K$$
$$300 \,K$$
$$288.7 \,K$$
$$273.7 \,K$$
$$298 \,K$$ | $$278.7^o C$$ | general_qa | 145 |
The following is a multiple choice question (with answers).
===Question
A bird is flying at a height of $3.6m$ above the surface of water and a fish is in the water at a depth of $1.2m$. The apparent height of bird to the fish is ($\mu_{water}= \dfrac{4}{3})$
===Choices
$$4.5m$$
$$4.2m$$
$$6.0m$$
$$5.4m$$
$$3.9m$$
$$4... | $$6.0m$$ | general_qa | 149 |
The following is a multiple choice question (with answers).
===Question
Calculate the braking distance for a vehicle traveling at a speed of 30 km/h on a road surface with a friction coefficient of $\varphi=0.80$, without the wheels locking. Consider the brake system reaction time in your calculations.
===Choices
$$
=... | $$
= 5. 3 4 m
$$ | general_qa | 206 |
The following is a multiple choice question (with answers).
===Question
Which of the following properties is/are common amongst the oxy acids $ H_2S_2O_7 , H_4P_2O_5 and H_3P_3O_9 $
===Choices
all have a cyclic structure
all have a planar structure
atleast one X=0 bond is is present (X=central atom)
all have cyclic st... | all have chain type open structure | general_qa | 135 |
The following is a multiple choice question (with answers).
===Question
Which of the following base changes is considered a transversion?
===Choices
T → C', 'A → G', 'C → T
T → A', 'G → C', 'C → T
G → A', 'T → C', 'G → T
C → A', 'G → T', 'A → C
C → T', 'A → C', 'G → A
A → G', 'T → C', 'C → T
G → C', 'A → G', 'T → A
G ... | T → G', 'A → T', 'C → G | general_qa | 168 |
The following is a multiple choice question (with answers).
===Question
Arrange the following according to their year of establishment.(a)National Achieves of India (formerly Imperial Records Department), Delhi.
(b)National Mission for Manuscripts, Delhi.
(c)National Film Archives of India (A Unit of Ministry of Inform... | (a),(c),(b),(d) | general_qa | 174 |
The following is a multiple choice question (with answers).
===Question
The 10 kg block is moving to the left with a speed of $1.2 m/s$ at time $t =0.$ A force F is applied as shown in the graph. After $0.2$ s the force continues at the $10 N$ level. If the coefficient of kinetic friction is $\displaystyle \mu _{k}=0.2... | $$0.333s$$ | general_qa | 210 |
The following is a multiple choice question (with answers).
===Question
Determine the output of the following program READ (2, 3) I, J 3FORMAT (2I11) IF (I - J) 5,6,6 6WRITE (3,10) I 10FORMAT (1X, I11) GO TO 7 5WRITE (3,10) J 7STOP
===Choices
Calculates the difference of two numbers
Prints the absolute value of the di... | Prints out the largest of two numbers | general_qa | 188 |
The following is a multiple choice question (with answers).
===Question
What should you do with pyrotechnic deveces that show signs of damage to the safety features?
===Choices
They should be put to one side and properly disposed of according to current directives
They should be sold to trusted vendors who handle haza... | They should be put to one side and properly disposed of according to current directives | general_qa | 172 |
The following is a multiple choice question (with answers).
===Question
Which of the following prescriptions belongs to the category of expelling external wind?
===Choices
Ren Shen Yang Ying Tang
Chuanxiong Cha Tiao San
Dang Gui Bu Xue Tang
Gui Zhi Tang
Xing Su San
Liu Wei Di Huang Wan
Xiao Chai Hu Tang
Wu Mei Wan
Bai... | Chuanxiong Cha Tiao San | general_qa | 95 |
The following is a multiple choice question (with answers).
===Question
In a power system where there is no shortage of reactive power sources, what is true about the need to add reactive power compensation devices?
===Choices
Reactive power compensation devices must be added if the reactive power supply exceeds deman... | Reactive power compensation devices can be added, but they should comply with the criteria of optimal network loss incremental rate. | general_qa | 235 |
The following is a multiple choice question (with answers).
===Question
A one-way slab refers to a bridge deck slab supported on all sides with a length-to-width ratio _____.
===Choices
Greater than 2
Less than or equal to 1
Less than 1.5
Equal to or greater than 1.5
Equal to or less than 1
Greater than or equal to 3.... | Equal to or greater than 2 | general_qa | 109 |
The following is a multiple choice question (with answers).
===Question
One of the following searches specifically for program code is ().
===Choices
https://codepen.pn
https://google.com
http://www.codesoso.net
https://stackoverflow.com
https://repl.it
https://codereview.stackexchange.com
https://rubygems.org
https:/... | http://www.codesoso.net | general_qa | 87 |
The following is a multiple choice question (with answers).
===Question
Which of the following forest management methods best aligns with the principles of sustainable development?
===Choices
Regular Monitoring
Commercial Exploitation
Overgrazing Allowance
Repetitive Clearances
Absolute Logging
Unregulated Cutting
Unp... | Regular Monitoring | general_qa | 76 |
The following is a multiple choice question (with answers).
===Question
Artificial satellites are gradually deflected from their original orbit due to the pressure from sunlight. Suppose an artificial satellite has a mass of $m = 100 \, \text{kg}$ and is a sphere with a radius of $r = 1.0 \, \text{m}$. Of the sunlight ... | $$
2. 1 \times1 0^{-5} \mathrm{N} ,\ 2. 1 \times1 0^{-7} \mathrm{~m / s^{2}}
$$ | general_qa | 628 |
The following is a multiple choice question (with answers).
===Question
A tank full of water has a small hole at its bottom. Let $t_1$ be the time taken to empty first half of the tank and $t_2$ be the time needed to empty rest half of the tank, then-
===Choices
$$t_1 = \frac{t_2}{3}$$
$$t_1 = \frac{3t_2}{2}$$
$$t_1 =... | $$t_1 = t_2$$ | general_qa | 216 |
The following is a multiple choice question (with answers).
===Question
Among the following real matrices, which one does not have real eigenvalues?
===Choices
Real upper triangular matrix
Fourth-order zero skew-symmetric matrix
Fifth-order non-zero skew-symmetric matrix
Fourth-order non-zero skew-symmetric matrix
Sec... | Second-order non-zero skew-symmetric matrix | general_qa | 110 |
The following is a multiple choice question (with answers).
===Question
For positive integers $k$ , let $f_k(x)=\sum_{i=0}^{2022} k^{2022-i}x^i$ . Find the smallest positive integer $n$ such that
$$$\sum_{r_1 \mid f_1(r_1)=0}\sum_{r_2\mid f_2(r_2)=0}\cdots \sum_{r_n\mid f_n(r_n)=0}\prod_{i=1}^{n}(2022-r_i)^{999}$$$
is ... | 35 | general_qa | 179 |
The following is a multiple choice question (with answers).
===Question
Let the two real values of $x$ satisfying
$$\frac{2x^2+20x+21}{2x^2-12x+20} = \frac{2x^2+24x+11}{2x^2-8x+10}$$
be $x_1$ and $x_2$ . Then $x_1+x_2=\dfrac{m}{n}$ , where $m$ and $n$ are relatively prime positive integers. Find $m+n$ .
===Choices
113... | 111 | general_qa | 174 |
The following is a multiple choice question (with answers).
===Question
Consider Convolutional Neural Network D2 which takes input images of size 32x32 with 1 colour channels. The first layer of D2 uses 4 filters of size 5x5, a stride of 2, and zero-padding of width 1. The dimensions of the resulting activation map for... | 15 | general_qa | 130 |
The following is a multiple choice question (with answers).
===Question
In normal-phase liquid chromatography, it refers to the mobile phase having a polarity that is ()that of the stationary phase.
===Choices
similar to
equal to
unrelated to
reversed from
nonequivalent to
opposite of
greater than
neutral to
identical... | smaller than | general_qa | 78 |
The following is a multiple choice question (with answers).
===Question
The period of the signal $(\sin 2t + \cos 5t)^{2}$ is ( ).
===Choices
Not a periodic signal
$\pi/ 15$
$4\pi$
$\pi/ 10$
$\pi/ 4$
$\pi$
$5\pi$
$2\pi$
$\pi/ 2$
$\pi/ 5$ | $2\pi$ | general_qa | 96 |
The following is a multiple choice question (with answers).
===Question
An electric motor is a device to convert electrical energy into mechanical energy. The motor shown below has a rectangular coil $(15\ cm \times 10\ cm)$ with 100 turns placed in a uniform magnetic fleld $B=2.5\ T$. When a current is passed through ... | 2 A | general_qa | 162 |
The following is a multiple choice question (with answers).
===Question
The spacing between the wires of a parallel twin-wire transmission line is $D = 8 \ \mathrm{cm}$, the diameter of the wires is $d = 1 \ \mathrm{cm}$, and the surrounding medium is air. Calculate the following: The phase coefficient and characterist... | $$
= 3 3 3 \ \Omega
$$ | general_qa | 260 |
The following is a multiple choice question (with answers).
===Question
The $\mathsf{C u}_{3} \mathsf{A u}$ alloy (75% Cu, 25% Au) exhibits an ordered state below 400°C, wherein Au atoms occupy the position 000 of the face centered cubic, while Cu atoms accupy the positions $\frac{1}{2} \frac{1}{2} 0, \frac{1}{2} 0 \fr... | (012), (021), (102), (201), (120), (210); (011), (101), (110), (211), (121), (112). | general_qa | 772 |
The following is a multiple choice question (with answers).
===Question
Consider the languages generated by the following sets of productions, with the start symbol being $S$. Which of the following options correctly describes the language generated by each set of productions?
===Choices
$(1) L=\{b(ab)^n : n \geq 0\}$... | $(1) L=\{b(ab)^n : n \geq 0\}$ or $L=\{(ba)^n : n \geq 0\}$, $(2) L=\{a^n c b^n : n \geq 0\}$, $(3) L=\{a^{2n+1} : n \geq 0\}$ | general_qa | 707 |
The following is a multiple choice question (with answers).
===Question
3.2 g of oxygen (At wt.=16) and 0.2 g of hydrogen (At wt,=1) are placed in a 1.12 L flask at ${ 0 }^{ \circ }C$. The total pressure of the gas mixture will be:
===Choices
3 atm
9 atm
4 atm
2 atm
6 atm
0.25 atm
0.5 atm
8 atm
0.75 atm
7 atm | 8 atm | general_qa | 115 |
The following is a multiple choice question (with answers).
===Question
In which of the following situations can the tax authorities require the taxpayer to complete the final settlement work?
===Choices
The business has operated in profit for five consecutive
The sales license has been obtained for 3 years but the sa... | The sales license has been obtained for 3 years but the sales have not been completed | general_qa | 116 |
The following is a multiple choice question (with answers).
===Question
A 19-year-old woman presents to the dermatology clinic for a follow-up of worsening acne. She has previously tried topical tretinoin as well as topical and oral antibiotics with no improvement. She recently moved to the area for college and says th... | Document 2 negative urine or blood pregnancy tests before beginning oral isotretinoin | general_qa | 364 |
The following is a multiple choice question (with answers).
===Question
In which of the following ways the concentration of hydrazine, $N_{2}H_{4}$, could be increased in an equilibrium described by the equation :$N_{2}(g)+2H_{2}(g)\rightleftharpoons N_{2}H_{4}(g)\: \Delta H=95kJ$
===Choices
increase the temperature
... | heat the reaction | general_qa | 126 |
The following is a multiple choice question (with answers).
===Question
For the phrase "即患秦兵之来", the part-of-speech and meaning of "之" are:
===Choices
Particle, indicates future intention
Particle, shows passive construction
Particle, marks nominal modification
Particle, expresses strong emphasis
Particle, marks the o... | Particle, removes sentence independence | general_qa | 105 |
The following is a multiple choice question (with answers).
===Question
Water at 20°C flows turbulently inside a straight pipe with an internal diameter of 2 meters. The velocity distribution is measured as $u_{x} = 10 + 0.8 \ln y$, with the shear stress at 1/3 meter from the pipe wall being $103 \, \mathrm{Pa}$. Try t... | $$
= 0. 1 3 3 8 \mathrm{m}
$$ | general_qa | 375 |
The following is a multiple choice question (with answers).
===Question
The $J=2$ to 3 rotational transition in a certain diatomic molecule occurs at $126.4 \mathrm{GHz}$, where $1 \mathrm{GHz} \equiv 10^9 \mathrm{~Hz}$. Find the frequency of the $J=5$ to 6 absorption in this molecule.
===Choices
210.8 $\mathrm{GHz}$
... | 252.8 $\mathrm{GHz}$ | general_qa | 197 |
The following is a multiple choice question (with answers).
===Question
What is the sequence for collecting soil profile samples?
===Choices
Collect samples layer by layer from the middle stratum to both sides according to the occurrence of soil layers.
Gather layers in sequence from the surface going deeper based on ... | Collect samples layer by layer from the bottom upwards according to the soil layers where they occur. | general_qa | 178 |
The following is a multiple choice question (with answers).
===Question
An otherwise healthy 32-year-old woman comes to the physician because of severe headaches and visual disturbance& Physical examination shows papilledema
Which of the following medications is most likely implicated in the development of the suspecte... | Oral contraceptive pill | general_qa | 143 |
The following is a multiple choice question (with answers).
===Question
How many kinds of rock fissures are there according to the cause?
===Choices
2
1
7
10
5
8
6
4
9
3 | 3 | general_qa | 51 |
The following is a multiple choice question (with answers).
===Question
The photosensitive devices produced by a certain factory have a light intensity sensitivity of $200 \mu A / \mathrm{lm}$ when calibrated with a standard tungsten filament lamp source. Its radiometric sensitivity is ().
===Choices
$$
4. 1 {\times} ... | $$
3. 4 {\times} 1 0^{3} \ \ ( \mu\mathrm{A} / \mathrm{W} )
$$ | general_qa | 412 |
The following is a multiple choice question (with answers).
===Question
Primarily distributed along the eastern coast of the Eurasian continent, summers are hot and rainy, while winters are cold with little rainfall. The annual precipitation ranges between 1000 and 1500mm. The forest structure is simple and not very ta... | Subtropical Evergreen Broadleaf Forest | general_qa | 167 |
The following is a multiple choice question (with answers).
===Question
A long tube of length $1.2\ m$ closed at both ends is lying horizontally. A mercury column of length $0.4\ m$ is filled in its middle and in rest of two parts, air is filled at atmospheric pressure. When the tube is turned to vertical position, fin... | $0.1$ meter | general_qa | 182 |
The following is a multiple choice question (with answers).
===Question
the concentration coefficient of elements__
===Choices
Defines the minimum viable grade of a distinct element within an ore as its median concentration in that geological entity, and estimates the ratio of it to the Clarke number, which signifies ... | Refers to the minimum minable grade of a certain element in a deposit as its average concentration in that geological object, and calculates the ratio of it to the Clarke value, which is the enrichment coefficient of that element. | general_qa | 427 |
The following is a multiple choice question (with answers).
===Question
10 moles of ${ NH }_{ 3 }$ gas (ideal) is heated under constant pressure from 300 K to 600 K. The change in entropy of gas is (given : In 2=0.7)
===Choices
24 cal/K
36 cal/K
56 cal/K
34 cal/K
20 cal/K
44 cal/K
42 cal/K
12 cal/K
28 cal/K
4.2 cal/K | 24 cal/K | general_qa | 120 |
The following is a multiple choice question (with answers).
===Question
Define the relationship R(A, B, C, D, E), with the functional dependencies as follows: AB → CE, E → AB, C → D. R belongs to the highest level of ___ normal form.
===Choices
0NF
BCNF
3NF
7NF
1NF
4NF
3.5NF
2NF
6NF
5NF | 2NF | general_qa | 92 |
The following is a multiple choice question (with answers).
===Question
Delayed onset polyneuropathy after Organophosphorous poisoning is seen after
===Choices
2-4 weeks
1-2 weeks
4-6 weeks
6-8 weeks
3-4 weeks
1-5 weeks
1-4 weeks
1-3 weeks
2-3 weeks
3-5 weeks | 2-4 weeks | general_qa | 83 |
The following is a multiple choice question (with answers).
===Question
How many m moles of sucrose should be dissolved in 500 grams of water so as to get a solution which has a difference of $ 103.57^0 C $ between boiling point and freezing point ?
$$ (K_f = 1.86 K kg mol^{-2}, K_b = 0.52 K Kg mol^{-1} ) $$
===Choic... | 750 m moles | general_qa | 162 |
The following is a multiple choice question (with answers).
===Question
The electrical potential that appears when a solid particle comes into contact with a polar medium (such as an aqueous solution) and forms a double layer is referred to as ( ).
===Choices
The potential difference between the solid surface and the ... | The potential difference between the solid surface and the bulk solution | general_qa | 172 |
The following is a multiple choice question (with answers).
===Question
Which of the following is true about descriptive research?
===Choices
Mainly investigates cause-and-effect relationships.
Often utilizes experimental design frameworks.
Mainly studies interaction of variables within populations.
Usually requires r... | The three main characteristics of distribution: time, region, population | general_qa | 112 |
The following is a multiple choice question (with answers).
===Question
Where can the main regulations for employees' health and safety be found?
===Choices
The Occupational Safety and Health Act, 1970
The Industrial Disputes Act, 1947
The Mines Act, 1952
The Factories Act, 1948
The Employees' Compensation Act, 1923
T... | The Factories Act, 1948 | general_qa | 148 |
The following is a multiple choice question (with answers).
===Question
What different positions do protons occupy in molecules, and what different phenomena is termed magnetic anisotropy?
===Choices
Atomic placement, polar disparity
Orbital location, magnetic polarity
Spatial position, shielding effect
Nuclear alignm... | Spatial position, shielding effect | general_qa | 108 |
The following is a multiple choice question (with answers).
===Question
The excited state nucleus can return to the ground state by emitting a $\gamma$ photon. Let the mass of the ground state, that is, the rest mass of the nucleus, be $m_{0},$ and the excitation energy (the energy of the nucleus in this excited state ... | $$
\frac{\Delta E} {h} \left[ 1-\frac{\Delta E} {2 ( \Delta E+m_{0} c^{2} )} \right]
$$ | general_qa | 509 |
The following is a multiple choice question (with answers).
===Question
In military logistics, which level does third-tier supply refer to?
===Choices
Brigade
Corps
Squadron
Division
Company
Regiment
Platoon
Fleet
Wing
Battalion | Company | general_qa | 60 |
The following is a multiple choice question (with answers).
===Question
When light of $3000\mathop {\text{A}}\limits^{\text{0}} $ is incident on sodium chloride, the stopping potential is 1.85 volt and when light of $4000\mathop {\text{A}}\limits^{\text{0}} $ is incident, then the stopping potential becomes 0.82 volt. ... | $$5154\mathop {\text{A}}\limits^{\text{0}} $$ | general_qa | 318 |
The following is a multiple choice question (with answers).
===Question
There is a batch of blended raw materials, raw materials for the blending ratio of wool 40/polyester 30/viscose 30, weighing the weight of 5000kg, the measured moisture retention rate of 8%, the standard weight of the batch of raw materials for how... | 5093.5kg | general_qa | 193 |
The following is a multiple choice question (with answers).
===Question
In the musical system, which of the following pitch is not in the diatonic scale?
===Choices
C_2-c^5
A_2-d^5
A_2-c^5
B_2-c^5 | A_2-c^5 | general_qa | 63 |
The following is a multiple choice question (with answers).
===Question
The maximum breadth can generally be considered as
===Choices
At bridge
ship width/2
At midship
The overall breadth | The overall breadth | general_qa | 41 |
The following is a multiple choice question (with answers).
===Question
The vascular cylinder (or vascular column) of the root includes_______, _______, and primary phloem parenchyma cells.
===Choices
The collenchyma cells; primary meristem
The outer cortical layer; secondary xylem
The endodermis; secondary phloem
The... | The central column sheath; primary xylem | general_qa | 142 |
The following is a multiple choice question (with answers).
===Question
The larger the relative molecular mass of a polymer, the lower its solubility in solution is ().
===Choices
Higher
Expanded
Magnified
Enlarged
Strengthened
Smaller
Greater
Intensified
Amplified
Increased | Smaller | general_qa | 68 |
The following is a multiple choice question (with answers).
===Question
Regular tetrahedron $ABCD$ has side length $6$ . Let $\ell$ be the line passing through the midpoints of $\overline{AB}$ and $\overline{CD}$ . The tetrahedron is rotated about $\ell$ ; let $\mathcal{S}$ be the intersection of all the rotated tetrah... | 89 | general_qa | 171 |
The following is a multiple choice question (with answers).
===Question
Natural gas (methane, CHA) to the various regions of the United States is on the order of $2. 7 \times1 0^{1 2} \, \mathrm{L}$ per day, measured at STP. What is the total enthalpy change for combustion of this quantity of methane?(Note: Less than t... | $$
- 1. 1 \times1 0^{1 4} \mathrm{~ k J}
$$ | general_qa | 380 |
The following is a multiple choice question (with answers).
===Question
Suppose we like to calculate P(H|E, F) and we have no conditional independence information. Which of the following sets of numbers are sufficient for the calculation?
===Choices
P(E, F), P(H|E, F), P(E|H)
P(E, F), P(H|E), P(F|H)
P(H), P(E, F|H), P... | P(E, F), P(H), P(E, F|H) | general_qa | 200 |
The following is a multiple choice question (with answers).
===Question
The concept of discrimination should omit the normal random differences of ().
===Choices
natural changes
natural variability
consistent differences
necessity
patterned fluctuations
short-term
long-term
chance
systemic variations
essential diverge... | chance | general_qa | 64 |
The following is a multiple choice question (with answers).
===Question
Which of the following is the best definition of the scientific method?
===Choices
The methods technicians apply to certify or discredit an axiom
The processes engineers utilize to establish or reject a law
The systems scientists operate with to a... | The steps scientists use and follow when trying to prove or disprove a theory | general_qa | 150 |
The following is a multiple choice question (with answers).
===Question
Who is the author of 'For the Enslaved Mother'?
===Choices
Hu Yeping
Yin Fu
Ding Ling
Rou Shi | Ding Ling | general_qa | 46 |
The following is a multiple choice question (with answers).
===Question
________ refers to the patient experiencing difficulty breathing, characterized by deep and heavy breaths, accompanied by abnormal breathing sounds, commonly seen in diabetic ketoacidosis and uremia.
===Choices
Acidosis hyperventilation
Metabolic ... | Acidosis hyperventilation | general_qa | 117 |
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