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
When designing a V-belt transmission, it is found that there are too many V-belt roots. What is the most effective solution?
===Choices
Choose a V-belt with a larger load surface model
Opt for a V-belt with a lower temperature rating
Select a V-be... | Choose a V-belt with a larger load surface model | general_qa | 161 |
The following is a multiple choice question (with answers).
===Question
U - tube manometer containing mercury was used to find the negative pressure in the pipe, containing water. The right limb was open to the atmosphere. Find the vacuum pressure in the pipe, if the difference of mercury level in the two limbs was 100... | -13.73kPa | general_qa | 177 |
The following is a multiple choice question (with answers).
===Question
In what year did Norman Rockwell donate his painting "The Dover Coach" to the Society of Illustrators?
===Choices
1959
1937
1949
1940
1935
1939
1929
1938
1936
1941 | 1939 | general_qa | 88 |
The following is a multiple choice question (with answers).
===Question
Using a seamless steel pipe with a diameter $d = 200 \mathrm{mm}$ and a length $l = 3000 \mathrm{m}$ (roughness $\Delta = 2 \mathrm{mm}$) to transport oil with a density $\rho = 900 \mathrm{kg} / \mathrm{m}^{3}$. Given the flow rate $q_{\mathrm{v}}... | 22.49m | general_qa | 268 |
The following is a multiple choice question (with answers).
===Question
Find the potential of a half-cell having reaction, $Ag_{2}S+2e\rightarrow2Ag+S^{2-}$ in a solution buffered
$pH=3$ and which is also saturated with $0.1\ M\ H_{2}S$. For $H_{2}S:\ K_{1}=10^{-8}$ and $K_{2}=2\times 10^{-13},\ K_{sp}(Ag_{2}S)=2\times... | $$-0.144\ V$$ | general_qa | 249 |
The following is a multiple choice question (with answers).
===Question
Given the product type 'fuel filter' and the attribute 'compatible with vehicle type', which of the following choices have the closest meaning to the value 'dirt bike'?
===Choices
crane
off-road bike
off-road motorcycle
moped
scooter
dirt motorcyc... | dirt motorcycle | general_qa | 73 |
The following is a multiple choice question (with answers).
===Question
Compute the integral:
$$
-\int \cos(6 \cdot x)^6 \, dx
$$
===Choices
C + \frac{1}{288} \cdot \left(\sin(12 \cdot x)\right)^3 - \frac{1}{24} \cdot \sin(12 \cdot x) - \frac{1}{128} \cdot \sin(24 \cdot x) - \frac{11}{16} \cdot x
C + \frac{1}{288} \cd... | C + \frac{1}{288} \cdot \left(\sin(12 \cdot x)\right)^3 - \frac{1}{24} \cdot \sin(12 \cdot x) - \frac{1}{128} \cdot \sin(24 \cdot x) - \frac{5}{16} \cdot x | general_qa | 854 |
The following is a multiple choice question (with answers).
===Question
The main receptors that produce the bronchodilator smooth muscle effect during excitation are ____.
===Choices
P receptor
N receptor
K receptor
G receptor
D receptor
M receptor
Alpha receptor
β receptor
H receptor
B2 receptor | B2 receptor | general_qa | 66 |
The following is a multiple choice question (with answers).
===Question
What is the equivalent of the lodicule in the spikelet of the Poaceae family?
===Choices
Anther
Perianth
Sepal
Ovule
Filament
Receptacle
Petal
Pistil
Stamen
Stigma | Perianth | general_qa | 70 |
The following is a multiple choice question (with answers).
===Question
For the international commercial practice as the origin of international economic law, which of the following statements is correct?
===Choices
Contains two parts: regular conduct (i.e., continuous and identical actions) and mental element (i.e., ... | It has two elements: material factor (i. e. repetitive and similar act) and psychological factor (i. e. considering having legal binding force) | general_qa | 213 |
The following is a multiple choice question (with answers).
===Question
S1 nerve root irritation causes pain along the
===Choices
Posterolateral aspect of foot
Anterolateral aspect of leg
Posteromedial aspect of foot
Medial aspect of thigh
Anterolateral aspect of foot
Anterior aspect of thigh
Anteromedial aspect of le... | Lateral aspect of foot | general_qa | 94 |
The following is a multiple choice question (with answers).
===Question
It is found from the analysis of the occurrences of earthquakes near a construction site over a period of 200 years and the use of an attenuation equation to estimate peak ground accelerations that eight times over the considered period the peak gr... | 0.982 | general_qa | 168 |
The following is a multiple choice question (with answers).
===Question
During the inflammation process, what is the earliest vascular response?
===Choices
Capillary constriction
Arteriolar dilation and congestion
Capillary dilation
Venous dilation
Venular constriction
Venular dilation
Capillary occlusion
Dilation of ... | Arteriolar constriction | general_qa | 97 |
The following is a multiple choice question (with answers).
===Question
To a one litre solution of $0.1N$ $HCl$, $0025mol$ of ${NH}_{4}Cl$ are added. Assuming $80$% dissociation of the solutes, the freezing point of the solution is: $({K}_{f}=1.85deg/molal)$
===Choices
$$-{0.85}^{o}C$$
$$-{0.25}^{o}C$$
-{0.22}^{o}C
$$... | $$-{0.23}^{o}C$$ | general_qa | 214 |
The following is a multiple choice question (with answers).
===Question
Balloons were used to obtain much of the early information about the atmosphere and continue to be used today to obtain weather information. In 1782, Jacques Charles used a hydrogen-filled balloon to fly from Paris 25 km into the French countryside... | $$
{0. 0 6 9}
$$
$$
{1 3 5 k g}
$$ | general_qa | 380 |
The following is a multiple choice question (with answers).
===Question
A projectile is thrown with some initial velocity u at an angle q to the horizontal. Its speed when it is at the highest point is$\sqrt{\cfrac{2}{5}}$ times the speed $V$ when it is at height half of the maximum height. Then ratio $\cfrac{v}{u}=\sq... | 3 | general_qa | 155 |
The following is a multiple choice question (with answers).
===Question
What dimension does display design belong to?
===Choices
Four-dimensional
Six-dimensional
Three-dimensional
Seven-dimensional
Eight-dimensional
Two-dimensional
Zero-dimensional
Single-dimensional
Five-dimensional
Multi-dimensional | Three-dimensional | general_qa | 54 |
The following is a multiple choice question (with answers).
===Question
According to the conditions of subject equilibrium, the conditions that the subject must meet to obtain maximum utility under resource constraints are ().
===Choices
the wage rate is equal to the marginal rate of substitution
the wage rate is less... | the wage rate is equal to the marginal rate of substitution | general_qa | 162 |
The following is a multiple choice question (with answers).
===Question
Current in an $AC$ circuit is given by $i=3\sin \omega t+4\cos \omega t$, then
===Choices
If voltage applied is $V=V_m\cos \omega t,$ then the circuit may contain resistance and inductance only.
If voltage applied is $V=V_m\cos \omega t,$ then the... | If voltage applied is $V=V_m\cos \omega t,$ then the circuit may contain resistance and inductance only. | general_qa | 297 |
The following is a multiple choice question (with answers).
===Question
A 4 m long ladder weighing 25 kg rests with upper end against a smooth wall and lower end of rough ground. What should be the minimum coefficient of friction between the ground and the ladder for it to be inclined at $60$ with the horizontal withou... | $$0.29$$ | general_qa | 145 |
The following is a multiple choice question (with answers).
===Question
Burning feet syndrome is due to deficiency of ?
===Choices
Biotin
Vitamin B2
Pantothenic acid
Folic acid
Vitamin B1
Vitamin B12
Thiamine
Vitamin B6
Niacin
Riboflavin | Pantothenic acid | general_qa | 74 |
The following is a multiple choice question (with answers).
===Question
The realization of the initiative of consciousness is constrained by both subjective and objective conditions. What are the conditions that restrict the functioning of the initiative of consciousness?
===Choices
When exploring reality, the operati... | In the process of understanding the world, the active role of human consciousness is constrained by the conditions of cognition, primarily by scientific and technological conditions, and is restricted by the subject's experience, value concepts, and the physiological qualities of the subject. | general_qa | 429 |
The following is a multiple choice question (with answers).
===Question
Compute the integral:
$$
\int \frac{ 1 }{ \sin(x)^6 } \, dx
$$
===Choices
-\frac{\cos(x)}{5\cdot\sin(x)^5}+\frac{4}{5}\cdot\left(-\frac{\cos(x)}{3\cdot\sin(x)^3}-\frac{1}{3}\cdot\cot(x)\right)
-\frac{\cos(x)}{5\cdot\sin(x)^5}+\frac{4}{5}\cdot\left... | -\frac{\cos(x)}{5\cdot\sin(x)^5}+\frac{4}{5}\cdot\left(-\frac{\cos(x)}{3\cdot\sin(x)^3}-\frac{2}{3}\cdot\cot(x)\right) | general_qa | 498 |
The following is a multiple choice question (with answers).
===Question
According to the Three Centers Theorem, the intersection point of the line connecting the instantaneous centers of velocity Pab and Pbd with the line connecting the instantaneous centers of velocity Pac and Pcd should be the instantaneous center of... | Pad | general_qa | 92 |
The following is a multiple choice question (with answers).
===Question
The source of oxygen that drives the internal combustion engine in an automobile is air. Air is a mixture of gases, which are principally $\mathrm{N}_{2} \ ( \sim7 9 \% )$ and $\mathrm{O_{2}} \, (-2 0 \% )$. In the cylinder of an automobile engine,... | $$
4. 4 \times1 0^{2} \mathrm{g N O_{2}}
$$ | general_qa | 467 |
The following is a multiple choice question (with answers).
===Question
According to Chinese criminal law, if a person who is both deaf and mute or blind commits a crime, the law states ().
===Choices
They may be given a lighter, reduced, or exempted punishment
They may be given an increased or similar punishment.
The... | They may be given a lighter, reduced, or exempted punishment | general_qa | 148 |
The following is a multiple choice question (with answers).
===Question
The mechanism of action of the exotoxin produced by Corynebacterium diphtheriae can be characterized by which of the following?
===Choices
Inhibits protein synthesis EF-2 adenosine monophosphate (AMP) ribosylation.
Inhibits protein synthesis by AD... | Inhibits protein synthesis EF-2 adenosine diphosphate (ADP) ribosylation. | general_qa | 232 |
The following is a multiple choice question (with answers).
===Question
which of the following conditions is the percussion finding of the heart border incorrect?
===Choices
Left ventricular enlargement - extends downward and to the left
Cardiac tamponade - relative dullness decreases, absolute dullness increases
Left... | Pericardial effusion - relative dullness increases, absolute dullness decreases | general_qa | 171 |
The following is a multiple choice question (with answers).
===Question
According to the different burning locations after a forest fire occurs, it can be classified into:
I. Surface fire
II. Crown fire
III. Ground fire
IV. Mixed fire
===Choices
II,III,IV
I,II,IV
I,II,III
I,II,III,IV
II,IV
III,IV
IV
II
I
I,IV | I,II,III | general_qa | 98 |
The following is a multiple choice question (with answers).
===Question
What is the name of the archipelago where Aniol Serrasolses kayaked down the biggest ever recorded glacial waterfall for the first time?
===Choices
Jan Mayen Islands
Svalbard
Iceland
Greenland
Spitzbergen
Jan Mayen
Spitsbergen
Faroe Islands
Norway | Svalbard | general_qa | 83 |
The following is a multiple choice question (with answers).
===Question
What is the chemical formula of bromothymol blue?
===Choices
C27H28Br2O5SeO
C27H28Br2O3S
C27H28Br2O5SO
C27H28Br2O4S
C27H28Br2O5Se
C27H28Br2O6S
C27H28Br2O5SO3
C27H28Br2O7S
C27H28Br2O5S
C27H28Br2O5SO2 | C27H28Br2O5S | general_qa | 151 |
The following is a multiple choice question (with answers).
===Question
If the true model is a simple linear regression model with the explanatory variable $X_{1}$, but an unrelated variable $X_{2}$ is included in the model during the modeling process, then the least squares estimate of the slope parameter().
===Choic... | Still possesses unbiasedness and consistency, but does not have the property of minimum variance. | general_qa | 212 |
The following is a multiple choice question (with answers).
===Question
The more soluble the gas is during absorption, the more the phase equilibrium constant m(), Henry's coefficient E(), and Henry's coefficient H().
===Choices
Smaller, smaller, equal
Larger, smaller, larger
Larger, larger, smaller
Smaller, larger, l... | Smaller, smaller, smaller | general_qa | 114 |
The following is a multiple choice question (with answers).
===Question
For the reaction $CH_4 + 2O_2 + 7.56N_2 \rightarrow (a) CO_2 + (1 - a) CO + 2(c)H_2O + 2(1 - c)H_2+ [(3 / 2) - (1/2) a -c)O_2 + 7.56N_2$ calculatethe maximum combustion temperature of methane whenthe initial temperature is 21.1°C and the initial pr... | 4747R | general_qa | 286 |
The following is a multiple choice question (with answers).
===Question
Equation $( x^{2} y+x \mathrm{s i n} x ) \mathrm{d} x+x N ( x, y ) \mathrm{d} y=0$ have integral factor $\mu( x, y )={\frac{1} {x^{2}}}$. Then ().
===Choices
$N (x, y)=x [2x+\varphi(y)]$, where $\varphi(x)$ is any continuously differentiable funct... | $N (x, y)=x [x+\varphi(y)]$, where $\varphi(x)$ is any continuously differentiable function | general_qa | 379 |
The following is a multiple choice question (with answers).
===Question
A circle with radius $5$ and center in the first quadrant is placed so that it is tangent to the $y$ -axis. If the line passing through the origin that is tangent to the circle has slope $\dfrac{1}{2}$ , then the $y$ -coordinate of the center of th... | 132 | general_qa | 176 |
The following is a multiple choice question (with answers).
===Question
A completely charred body was brought for autopsy. You are examining the skull and cranial cavity. You find that there is a collection of blood in the epidural space. The presence of which of the following suggest the possibility of hematoma due to... | Radiating Fracture lines over the skull | general_qa | 161 |
The following is a multiple choice question (with answers).
===Question
Use differentials to estimate the amount of tin in a closed tin can with diameter $8 \mathrm{~cm}$ and height $12 \mathrm{~cm}$ if the tin is $0.04 \mathrm{~cm}$ thick.
===Choices
16 $\mathrm{cm^3}$
30 $\mathrm{cm^3}$
12 $\mathrm{cm^3}$
18 $\mathr... | 16 $\mathrm{cm^3}$ | general_qa | 168 |
The following is a multiple choice question (with answers).
===Question
Compute $\sqrt[3]{130}$ with an estimate error of $0.0001$ using series expansion.
===Choices
5.06577774
5.06577777
5.06577778
5.06577770
5.06577779
5.06577773
5.06577776
5.06577775
5.06577772
5.06577771 | 5.06577778 | general_qa | 153 |
The following is a multiple choice question (with answers).
===Question
H_2(g) + 2AgCl (s) + 2H_2O \rightarrow 2Ag(s) + 2H_3O^+(Ag) + 2Cl^-(Ag). It has been determined that at 25°C the standard free energy of forma-tion of AgCl(s) is -109.7 kJ/mole, that of H_2O(l) is -237.2 kJ / mole, and that of (H_3O^+ + Cl^-) (ag) ... | .459v | general_qa | 272 |
The following is a multiple choice question (with answers).
===Question
Of the given, which protein filament is 50 to 55% in the muscle?
===Choices
Desmin
Troponin
Plectin
Dystrophin
Actin
Myosin
Lamin
Tropomyosin
Titin
Nebulin | Myosin | general_qa | 75 |
The following is a multiple choice question (with answers).
===Question
A two-component ideal gas undergoes unidirectional diffusion. When the total pressure is increased, if the partial pressure of solute A in each part of the gas phase is kept constant, the mass transfer rate will be (); if the temperature is increas... | Reduce, increase, increase | general_qa | 162 |
The following is a multiple choice question (with answers).
===Question
The concentration of \( N_2O_5 \) in liquid bromine varied with time as follows:
| \( t \) (s) | 0 | 100 | 300 | 500 |
|-------------|--------|-------|-------|-------|
| \([N_2O_5]\) (M) | 0.12 | 0.088 | 0.049 | 0.026 |
What will be the rate consta... | None of these | general_qa | 289 |
The following is a multiple choice question (with answers).
===Question
A chemical factory produces two types of products, $\mathrm{A}_{1}$ and $\mathrm{A}_{2}$. It is known that to manufacture 10,000 bottles of product $\mathrm{A}_{1}$ requires 5 kg of raw material $B_{1}$, 300 kg of $B_{2}$, and 12 kg of $B_{3}$, res... | $$
x_{1}=40,x_{2}=100.
$$ | general_qa | 431 |
The following is a multiple choice question (with answers).
===Question
Compute the derivative of the implicit function:
$$
2 \cdot y^4 - \frac{ 3 \cdot x + 3 \cdot y }{ 2 \cdot x - 2 \cdot y } = 0
$$
===Choices
-\frac{y^2}{2\cdot\left(x^2+y^2\right)+x\cdot y}
-\frac{y^2}{2\cdot\left(x^2-y^2\right)+3\cdot x\cdot y}
-\... | -\frac{y^2}{2\cdot\left(x^2-y^2\right)-x\cdot y} | general_qa | 288 |
The following is a multiple choice question (with answers).
===Question
Ravi can throw a ball at a speed on the earth which can cross a river of width $10$m. Ravi reaches on an imaginary planet whose mean density is twice that of the earth. Find out the maximum possible radius of the planet so that if Ravi throws the b... | $4$km. | general_qa | 153 |
The following is a multiple choice question (with answers).
===Question
At 298K, the standard reduction potentials are 1.51 V for $MnO_4^-|Mn^{2+}, 1.36 V for Cl_2| Cl^-, 1.07 V $ for $Br_2|Br^-,$ and $0.54 V for I_2|I^-. $ At pH = 3 , permanganate is expected to oxidize: $(\frac{RT}{F} = 0.059 V)$
===Choices
$Br^-$ a... | $Br^-$ and $I^-$ | general_qa | 195 |
The following is a multiple choice question (with answers).
===Question
Among the following statements, the correct ones are ( )(Choose the option that includes all the correct statements)
I. The large-scale emergence of polysyllabic words has become a trend in the development and evolution of Chinese language.
II. A p... | I, II, IV, V | general_qa | 301 |
The following is a multiple choice question (with answers).
===Question
Factors affecting the final dilution ratio of semen include: (1) sperm motility (2) ______ (3) number of animals providing the sperm (4) number of sperm per milliliter of semen after dilution.
===Choices
sperm velocity
sperm quality
sperm integrit... | sperm density | general_qa | 102 |
The following is a multiple choice question (with answers).
===Question
Compute the integral:
$$
\int \cos\left(\frac{ x }{ 2 }\right)^4 \, dx
$$
===Choices
\frac{\sin\left(\frac{x}{2}\right)\cdot\cos\left(\frac{x}{2}\right)^3}{2}+\frac{3}{4}\cdot\left(\sin\left(\frac{x}{2}\right)\cdot\cos\left(\frac{x}{2}\right)+\fra... | \frac{\sin\left(\frac{x}{2}\right)\cdot\cos\left(\frac{x}{2}\right)^3}{2}+\frac{3}{4}\cdot\left(\sin\left(\frac{x}{2}\right)\cdot\cos\left(\frac{x}{2}\right)+\frac{x}{2}\right)+C | general_qa | 808 |
The following is a multiple choice question (with answers).
===Question
The highway uses a high embankment on the soft soil foundation in the bridgehead section, with an average roadbed width of 30 meters. The uniformly distributed load transferred to the bottom surface of the roadbed from the roadbed's own weight and ... | 248mm | general_qa | 201 |
The following is a multiple choice question (with answers).
===Question
What did Wang Bi from the Three Kingdoms period of China say about the theory of text levels?
===Choices
The three levels are poetic devices, narrative structure, and thematic depth.
The three levels are syntax, semantics, and pragmatics.
The thre... | The three levels are literary language , literary imagery, and literary meaning. | general_qa | 175 |
The following is a multiple choice question (with answers).
===Question
Female,37 years old. Sudden cardiac arrest and respiratory arrest were sent to the hospital, and urgent cardiac compression outside the chest and artificial respiration with endotracheal intubation were performed. The best way for rescue medication... | Intratracheal injection | general_qa | 133 |
The following is a multiple choice question (with answers).
===Question
A particle moves freely, with the initial wave function at $t=0$ given as
$$
\psi( x, 0 )=( 2 \pi a^{2} )^{-1 / 4} \exp \biggl[ i k_{0} ( x-x_{0} )-\biggl( \frac{x-x_{0}} {2 a} \biggr)^{2} \biggr], \; \; \; a > 0
$$
Find the wave packet width $\Del... | $$\Delta x = a$$ | general_qa | 255 |
The following is a multiple choice question (with answers).
===Question
A liquid at 90°F is flowing at a rate of 40 gal/min through a horizontalpipe line of constant diameter 1.61 in. The pipe length is 50 ft. The system con-tains two 90° standard elbows, two valves and a tee joint across the flow. The density and visc... | Pressure loss: - 2.54lb_f/in^2 (gate valve), - 5.52lb_f/in^2 (globe valve) | general_qa | 478 |
The following is a multiple choice question (with answers).
===Question
Which of the following statements about the causes of atrial fibrillation is incorrect?
===Choices
Chronic atrial fibrillation is directly induced only by long-term dietary imbalances
Atrial fibrillation may occur during acute alcohol poisoning
Tr... | Isolated atrial fibrillation refers to atrial fibrillation that occurs in short bursts and has no obvious clinical symptoms | general_qa | 188 |
The following is a multiple choice question (with answers).
===Question
A game involves jumping to the right on the real number line. If $a$ and $b$ are real numbers and $b > a$, the cost of jumping from $a$ to $b$ is $b^3-ab^2$. For what maximum value of $c$ can one travel from $0$ to $1$ in a finite number of jumps w... | \boxed{1} | general_qa | 196 |
The following is a multiple choice question (with answers).
===Question
Betelgeuse is a red giant at a distance of 428 light years. In the future it will become supernova similar to 'Tycho's supernova' which was observed in 1572 and lies at a distance of 9800 light years. At its peak, its brightness was similar to that... | 1.6 | general_qa | 163 |
The following is a multiple choice question (with answers).
===Question
What is the sampling organization method for calculating the sampling average error based on the data of inter-group variance?
===Choices
Judgmental Sampling
Quota Control Sampling
Simple Random Sampling
Mechanical Sampling
Multi-Stage Sampling
Ty... | Cluster Sampling | general_qa | 81 |
The following is a multiple choice question (with answers).
===Question
Compute the integral:
$$
\int \frac{ -1 }{ 3 \cdot \sin\left(\frac{ x }{ 3 }\right)^6 } \, dx
$$
===Choices
frac{cosleft(frac{x}{3}right)}{5cdot sinleft(frac{x}{3}right)^5}-frac{4}{15}cdotleft(frac{cosleft(frac{x}{3}right)}{sinleft(frac{x}{3}right... | frac{cosleft(frac{x}{3}right)}{5cdot sinleft(frac{x}{3}right)^5}-frac{4}{15}cdotleft(-frac{cosleft(frac{x}{3}right)}{sinleft(frac{x}{3}right)^3}-2cdot cotleft(frac{x}{3}right)right)+C | general_qa | 848 |
The following is a multiple choice question (with answers).
===Question
Using specific instruments to measure, the radiation energy emitted by a blackbody furnace with a wavelength of $0.7^{\mu m}$ (within the hemisphere range) is $10^{8} W / m^{3}$. What is the heating power of the radiation blackbody furnace under th... | $$
4 9. 4 W
$$ | general_qa | 222 |
The following is a multiple choice question (with answers).
===Question
When compiling the complete map of China (with the South China Sea islands as an inset), the preferred projection method is:
===Choices
General transverse azimuthal projection
Pseudazimuthal projection
Mixed secant cylindrical projection
Juxtapose... | Normal-axis secant conic projection | general_qa | 106 |
The following is a multiple choice question (with answers).
===Question
A sexually active 23-year-old man with multiple sex partners has dysuria and a yellow urethral exudate. Gram stain of the exudate shows numerous neutrophils, many that contain intracellular gram-negative diplococci. He has had three similar episode... | Both Antigenic variation and High genetic variability are correct | general_qa | 168 |
The following is a multiple choice question (with answers).
===Question
A ball falls vertically downward and bounces off a horizontal floor. The speed of the ball just before reaching the floor $(u_1)$ is equal to the speed just after leaving contact with the floor $(u_2);\, u_1\, =\, u_2$. The corresponding magnitudes... | $a_1\, =\, a_2\,
eq\, g$ | general_qa | 322 |
The following is a multiple choice question (with answers).
===Question
On October 25 RalphMuffetaccepted a draft for $620 that was dated October 10 and due 3 months after sight. It was discounted on November 16 at 4 (1/2)%. The bank charges (1/8)% collection fee. Find the proceeds of the draft.
===Choices
$610.33
$61... | $613.79 | general_qa | 159 |
The following is a multiple choice question (with answers).
===Question
In a cocurrent heat exchanger, the known inlet and outlet temperatures of the hot fluid are 180°C and 100°C, and the inlet and outlet temperatures of the cold fluid are 40°C and 80°C, then what is the logarithmic average temperature difference?
==... | 61.7°C | general_qa | 138 |
The following is a multiple choice question (with answers).
===Question
Using the equilibrium swelling method to determine the crosslink density of sulfur-cured styrene-butadiene rubber (SBR), the test data are as follows: test temperature is 25°C, dry rubber weight is 0.1273g, swollen weight is 2.116g, dry rubber dens... | $$E=6.\:8\times10^{4}\:(\mathrm{Pa})$$ | general_qa | 365 |
The following is a multiple choice question (with answers).
===Question
Given a unit feedback control system with the open-loop transfer function $G(s) = \frac{K^*(s+z)}{s^2(s+10)(s+20)}$, if purely imaginary roots $\pm j1$ need to be generated, the values of $z$ and $K^*$ should be:
===Choices
$z = 6.92$, $K^* = 33$
... | $z = 6.63$, $K^* = 30$ | general_qa | 266 |
The following is a multiple choice question (with answers).
===Question
In which year was the 'Biosecurity Law of the People's Republic of China' officially implemented?
===Choices
2021.5
2022
2020.5
2018
2021
2023
2020
2019
2024
2025 | 2021 | general_qa | 90 |
The following is a multiple choice question (with answers).
===Question
Closely related species H and G diverged from a common ancestor. If the nucleotide substitution rate of a certain gene is z per unit of time, and the total number of nucleotide substitutions between H and G is found to be X, what can be inferred ab... | y=0.5x/z | general_qa | 157 |
The following is a multiple choice question (with answers).
===Question
In a circular tube with a diameter of 0.01m and a length of 0.30m, $\mathrm{C O_{2}}$ gas undergoes steady-state molecular diffusion through $\mathrm{N_{2}}$. The temperature of $\mathrm{N_{2}}$ inside the tube is 298K, and the total pressure is 10... | $$
1.9 3 \times1 0^{-6} \, \mathrm{k m o l} / ( \mathrm{m}^{2} \, \cdot\, \mathrm{s} )
$$ | general_qa | 623 |
The following is a multiple choice question (with answers).
===Question
The Gifbbs energy for the decomposition of ${Al}_{2}{O}_{3}$ at ${500}^{o}C$ is as follows:
$\cfrac{2}{3}{Al}_{2}{O}_{3}\rightarrow \cfrac{4}{3}Al+{O}_{2},{\Delta}_{f}G=+940kJ$ ${mol}^{-1}$
The potential difference needed for the electrolytic reduc... | $$5.0V$$ | general_qa | 187 |
The following is a multiple choice question (with answers).
===Question
When the performance of the processor develops at a high speed, the performance of other components of the computer does not keep up with it, which causes a lot of ability mismatch problems, among which the most important problem is ().
===Choices... | Interface Issues between Processor and Main Memory | general_qa | 149 |
The following is a multiple choice question (with answers).
===Question
Fissure water, based on the origin of the voids in its medium, can be categorized into diagenetic fissure water, weathering fissure water, and tectonic fissure water.
===Choices
Volcanic fracture water, Coastal fracture water
Ocean fracture water,... | Weathering fracture water, Structural fracture water | general_qa | 152 |
The following is a multiple choice question (with answers).
===Question
On increasing temperature from 200 K o 220 K rate of reaction A increase by 3 times and rate of reaction B increases by 9 times hen correct relationship between activation energy of A and B is
===Choices
$$3{ E }_{ A }={ E }_{ B }$$
$${ E }_{ A }=... | $${ E }_{ B }={ 2E }_{ A }$$ | general_qa | 246 |
The following is a multiple choice question (with answers).
===Question
A copper disc of radius 10 cm is rotating in magnetic field B = 0.4 gauss with 10 rev. / sec. What will be potential difference across peripheral points of disc.
===Choices
15 \pi u V
10 \pi u V
zero
$$ 20 \pi u V $$
25 \pi u V
30 \pi u V
$$ 5 \pi... | zero | general_qa | 106 |
The following is a multiple choice question (with answers).
===Question
A doorman at a hotel is trying to get three taxicabs for three different couples. The arrival of empty cabs has an exponential distribution with mean 2 minutes. Assuming independence, what is the probability that the doorman will get all three coup... | $0.5768$ | general_qa | 156 |
The following is a multiple choice question (with answers).
===Question
When was the Durango and Silverton Narrow Gauge Railroad built?
===Choices
1886
1880
1881
1883
1889
1884
1888
1882
1887
1885 | 1882 | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
Which of the following groups is composed entirely of minerals?
===Choices
Kaolinite, Quartz Crystals and Feldspar Phenocrysts in Granite
Bauxite, Limonite, and Magnetite in Iron Ore
Apatite, Kyanite, and Staurolite in Gneiss
Barite, Fluorite, and... | Kaolinite, Quartz Crystals and Feldspar Phenocrysts in Granite | general_qa | 186 |
The following is a multiple choice question (with answers).
===Question
Academician Scientist Yang Shuzi famously said: "A country without science and technology collapses at the first blow; however, a country without a national spirit collapses without even being attacked." This vividly illustrates that ( ) is the spi... | Chinese Spirit | general_qa | 104 |
The following is a multiple choice question (with answers).
===Question
What is the pathogenesis of the clinical observation of "black face, long and dirty teeth, abdominal distension and obstruction, and obstruction of the upper and lower parts"?
===Choices
The weakening of the Sha
The end of the Shaoyin pulse
The bl... | The end of the Shaoyin pulse | general_qa | 137 |
The following is a multiple choice question (with answers).
===Question
Find the indefinite integral $intfrac{dx}{sqrt{sin xcos^2 x}}$
===Choices
$frac{2}{5}tan^{frac{5}{2}}x-2tan^{frac{1}{2}}x+C$
$tan^{frac{5}{2}}x+tan^{frac{1}{2}}x+C$
$frac{2}{5}tan^{frac{5}{2}}x-2tan^{-frac{1}{2}}x+C$
$frac{2}{5}tan^{frac{5}{2}}x+2... | $frac{2}{5}tan^{frac{5}{2}}x+2tan^{frac{1}{2}}x+C$ | general_qa | 320 |
The following is a multiple choice question (with answers).
===Question
Phosphate can be removed from sewage effluent by adding magnesium oxide and ammonium ion according to the re- action 5H_2O + H_2PO^-_4 + MgO + NH^+_4 \rightarrow Mg(NH_4)PO_4 \bullet 6H_2O. The magnesium ammonium phosphate hexahydrate (Mg(NH_4)PO_4... | 1.433 × 10^3 kg | general_qa | 269 |
The following is a multiple choice question (with answers).
===Question
A 100-gram piece of ice at 0°C is added to 400 grams of water at 30°C. Assuming we have a perfectly insulated calorimeter for this mixture, what will be its final temperature when the ice has all been melted?
===Choices
12 degrees centigrade
4 deg... | 8 degrees centigrade | general_qa | 137 |
The following is a multiple choice question (with answers).
===Question
A father promised his son that if the son married the daughter of a politician within 18 months, the father would assume responsibility for the son's student loans.
The father was primarily motivated to make this promise by a tax deduction that he ... | No, because a contract made in consideration of marriage must be in writing. | general_qa | 336 |
The following is a multiple choice question (with answers).
===Question
The standard heat of combustion of ethene gas is $-330 \ Kcalmol^{-1} $. Calculate $ {C = C} $ bond energy (in kcal/mol) assuming that bond energy of $C -H$ bond is $93.6 \ Kcalmol^{-1} $Given : $ \Delta H_{f}^{0} $ for $ CO_2(g) $ and $ H_2O (l) ... | 112 Kcal/mol | general_qa | 238 |
The following is a multiple choice question (with answers).
===Question
The reason for the color change of procaine is ( ).
===Choices
condensation reaction
diazotization-coupling reaction
electrolytic reaction
oxidation reaction
isomerization reaction
catalytic conversion
reduction reaction
photosynthesis process
hyd... | oxidation reaction | general_qa | 77 |
The following is a multiple choice question (with answers).
===Question
The CPU clock speed of a certain computer is 500 MHz, with a CPI of 5 (i.e., each instruction requires an average of 5 clock cycles to execute). Suppose a peripheral device has a data transfer rate of 5 MB/s and uses an interrupt method to transfer... | $$
2. 5 \%
$$ | general_qa | 250 |
The following is a multiple choice question (with answers).
===Question
Salinity is a scale of seawater _____. Seawater is a complex solution containing more than 80 elements such as chlorine and sodium, which form the sum of inorganic salts called the salinity of the seawater. In the vertical ocean, the surface or upp... | salt content, reduce | general_qa | 144 |
The following is a multiple choice question (with answers).
===Question
A 35-year-old male. One hour after a car accident causing head and limb injuries, he feels thirsty and has reduced urine output. Physical examination: T 36.1°C, P 116 beats/min, R 20 breaths/min, BP 88/70 mmHg. He is conscious but appears distresse... | Replace as much as needed | general_qa | 213 |
The following is a multiple choice question (with answers).
===Question
Consider a version of the Blocks World with just three blocks - a, b, and c. The on relation is axiomatized below.
||||
|----------|---------|----------|
| ¬on(a,a) | on(a,b) | ¬on(a,c) |
| ¬on(b,a) | ¬on(b,b) | on(b,c) |
| ¬on(c,a) | ¬on(c,b) | ¬o... | Consistent, Consistent, Consistent | general_qa | 308 |
The following is a multiple choice question (with answers).
===Question
Onion and green onion seeds ______ are very similar. Their main difference is that the outer skin of onion seeds is _____ and irregularly arranged, while the outer skin of green onion seeds is _____ and neatly arranged.
===Choices
Shape, color, si... | Shape, color, size, more wrinkles, fewer wrinkles | general_qa | 183 |
The following is a multiple choice question (with answers).
===Question
The number of geometric isomers possible for the complex $[CoL_2Cl_2]^-$ (unsymmetrical didentate ligand $L = H_2NCH_2CH_2O^-$) is:
===Choices
9
5
7
8
4
2
10
3
6
12 | 5 | general_qa | 88 |
The following is a multiple choice question (with answers).
===Question
Among the following minerals, they are secondary minerals
===Choices
Calcite
Quartz
Plaster
Hematite
Magnetite
Amphibole
Orthoclase
Pyroxene
Mica
Peridot | Calcite | general_qa | 62 |
The following is a multiple choice question (with answers).
===Question
In which city did pianist David Eugene Tudor set up India's first electronic music studio?
===Choices
Bangalore.
Ahmedabad.
Hyderabad.
New Delhi.
Surat.
Kolkata.
Jaipur.
Pune.
Chennai.
Mumbai. | Ahmedabad. | general_qa | 67 |
The following is a multiple choice question (with answers).
===Question
What effect of force is called when a force deforms a body?
===Choices
Surface reaction
External effects
Material result
Rotation effect
Expansion outcome
Compression result
Boundary impact
Internal effect
Structural change
Translational effect | Internal effect | general_qa | 63 |
The following is a multiple choice question (with answers).
===Question
If $S$ is the number of $4$ -digit positive integers with all distinct nonzero digits satisfy the condition that the sum of the first and last digit is greater than or equal to the sum of the middle two digits, find the remainder obtained when $S$ ... | 648 | general_qa | 120 |
The following is a multiple choice question (with answers).
===Question
For the reaction, 2AB(s) $\rightleftharpoons A_{2}(g)+B_{2}(g),\Delta H=1.38$ KCal, the equilibrium pressure is 2 atm at 500 K. Assuming the enthalpy change to be independent of temperature, the equilibrium pressure at 1000 K will be : [Take log2=0... | 1.414 atm | general_qa | 166 |
The following is a multiple choice question (with answers).
===Question
The main factors affecting the properties of epoxy resin include epoxy value, inorganic chlorine content, ______ content, and volatiles.
===Choices
polymer density
hydration state
binding coefficient
aromatic content
thermal resistance
carbonation... | organic chlorine | general_qa | 77 |
The following is a multiple choice question (with answers).
===Question
What month and year was the album "Introspective" released by Inner Ear Records?
===Choices
June 4, 2020
June 14, 2023
June 4, 2022
June 14, 2020
June 14, 2021
June 4, 2021
June 4, 2023
June 14, 2022 | June 4, 2021 | general_qa | 118 |
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