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
On what day, month, and year did the first Bennett Cup auto race, for a prize sponsored by New York Herald publisher James Gordon Bennett Jr., begin as five entrants departed from the Parc de Saint-Cloud, near Paris, on a 566-kilometer (352 miles) ... | June 14th, 1900 | general_qa | 203 |
The following is a multiple choice question (with answers).
===Question
Under normal circumstances, the lower borders of both lungs are roughly the same, situated at the ____ intercostal space along the midclavicular line, the ____ intercostal space along the midaxillary line, and the _____ rib at the scapular line.
=... | sixth, eighth, tenth | general_qa | 142 |
The following is a multiple choice question (with answers).
===Question
What is the root cause of planation?
===Choices
Atmospheric Pressure Changes
Volcanic Activity Results
Erosional Wind Action
Layer Compression Effects
Structural Movement
Chemical Weathering Impact
Erosion by lateral or side action
Biological Grow... | Structural Movement | general_qa | 84 |
The following is a multiple choice question (with answers).
===Question
A boy bailing a boat lifts 2.0 kg of water to a height of 1.2 m above the bilge as he pours the water over the side, (a) How much work does he perform? (b) How much work is done by the force of gravity?
===Choices
18 joules, -18 joules
24 joules, ... | 23.5 joules, -23.5 joules | general_qa | 190 |
The following is a multiple choice question (with answers).
===Question
A particle slides along a track with elevated ends and a flat central part as shown in the Figure below. The flat portion BC has a length $l=3.0 m$. The curved portions of the track are frictionless. For the flat part the coefficient of kinetic fri... | The particle comes to rest at the center. of the flat part. | general_qa | 335 |
The following is a multiple choice question (with answers).
===Question
During the translation elongation phase in E. coli, the shifting requires the translation elongation factor ____, consuming one molecule of the high-energy compound ____each time.
===Choices
EF-G; UTP
EF-P; CTP
EF-P; ATP
EF-P; GTP
EF-G; CTP
EF-Tu;... | EF-G; CTP | general_qa | 109 |
The following is a multiple choice question (with answers).
===Question
The main administrative security management measures of enterprises include enterprise security organization, security post responsibility system, duty system, patrol system, and what is another one?
===Choices
Security Operational Audit Schedule
... | Security Technical Protective Facilities | general_qa | 98 |
The following is a multiple choice question (with answers).
===Question
We now define an algorithm: The definition of a(n) is the output image of n after one application of the "5x+1" transformation, which maps an integer n to 5n + 1. Given the input x_list (a series of values): [61, 62, 63, 64, 65, 66, 67, 68, 69, 70]... | [306, 31, 21, 32, 326, 33, 336, 34, 23, 35] | general_qa | 564 |
The following is a multiple choice question (with answers).
===Question
For the reversible reaction, $N_2(g)+3H_2(g)=2NH_3(g)$ at $500^o$C, the value of $K_p$ is $1.44\times 10^{-5}$ when partial pressure is measured in the atmosphere. The corresponding value of $K_c$, with concentration in $mol \ litre^{-1}$ is:
===C... | $$1.44\times 10^5/(0.082\times 500)^{-2}$$ | general_qa | 400 |
The following is a multiple choice question (with answers).
===Question
In the context of cross-resistance, to which class of antibiotics do nalidixic acid and ciprofloxacin belong?
===Choices
quinolones
tetracyclines
beta-lactams
fluoroquinolones
aminoglycosides | quinolones | general_qa | 70 |
The following is a multiple choice question (with answers).
===Question
Which of the following sentences about environmental and resource protection is correct?(Choose the option that includes all the correct statements) I. The core requirement of the PPP principle is that all polluters must pay directly or indirectly ... | I, II, V, VI | general_qa | 313 |
The following is a multiple choice question (with answers).
===Question
When four hydrogen nuclei (protons) combine to form a helium nucleus ($\alpha$ particle), a mass of $5.0 \times 10^{-29} \, \mathrm{kg}$ is converted into energy. What is the energy released when all the hydrogen nuclei in one kilogram of water com... | $$
7. 5 {\times} 1 0^{1 3} ( \mathrm{J} )
$$ | general_qa | 403 |
The following is a multiple choice question (with answers).
===Question
Technologies developed during World War II that were used in marine applications include ____ and scuba diving equipment.
===Choices
computers
jet engines
helicopters
sonar
parachutes
torpedoes
satellites
GPS
night vision
radar | sonar | general_qa | 69 |
The following is a multiple choice question (with answers).
===Question
The voltage $X(t)$ across the diode is a stationary Gaussian process with zero mean and autocorrelation function $R_{X}(\tau) = c \mathrm{e}^{-a |\tau|}$. Find the mean of the diode current $Y(t) = I e^{\mathrm{ar}(t)}$ is ().
===Choices
$$
\begin... | $$
\begin{aligned} {{m_{Y} ( t )}} & {{} {{}=E \langle I \mathrm{e}^{\mathrm{e} X ( t )} \rangle}} \\ \end{aligned}
$$ | general_qa | 575 |
The following is a multiple choice question (with answers).
===Question
Which of the following descriptions about niche theory is incorrect?
===Choices
Environmental pressure can cause species to narrow their realized niche.
When lacking competitors, a species can expand its realized niche.
Niche overlap typically lea... | Mutualistic symbiosis tends to expand the fundamental niche. | general_qa | 158 |
The following is a multiple choice question (with answers).
===Question
In formol ether concentration technique, which layer contain the parasites?
===Choices
Sediment
Fecal sediment layer
Fecal sediment
Fecal suspension
Fecal debris
Formal water
Formalin layer
Ether
Fecal suspension layer
Ether layer | Sediment | general_qa | 68 |
The following is a multiple choice question (with answers).
===Question
An electron revolves along a circular path of radius $20 cm$ with constant angular velocity $120 rad { s }^{ -1 }$ about an axis passing through the centre and perpendicular to the plane of the circle. If the external magnetic field is absent, then... | $$1.638\times { 10 }^{ -9 }V$$ | general_qa | 317 |
The following is a multiple choice question (with answers).
===Question
After 1965, what was the main focus of efforts to promote police professionalization?
===Choices
Curriculum development
Curriculum reform
None of the other choices
Education
Standards of admission
Professional development
Curriculum improvement
Ci... | Education | general_qa | 76 |
The following is a multiple choice question (with answers).
===Question
Which of the following is not an available tool for assessing suicide risk?
===Choices
Depression Anxiety Stress Scales
Beck Scale for Suicidal Ideation
Suicidal Ideation Questionnaire
The Suicide Action Questionnaire | The Suicide Action Questionnaire | general_qa | 61 |
The following is a multiple choice question (with answers).
===Question
American language educator Krashen proposed a series of hypotheses on second language acquisition, among which the most famous are the Monitor Hypothesis and ()
===Choices
Universal Grammar Hypothesis
Output Hypothesis
Affective Filter Hypothesis
... | Input Hypothesis | general_qa | 108 |
The following is a multiple choice question (with answers).
===Question
The reason for the change in the resistance value of a metal wire strain gauge when the specimen deforms is ( ).
===Choices
opacity transition
thickness variation
temperature fluctuation
weight adjustment
density modification
length change
volume ... | length change | general_qa | 72 |
The following is a multiple choice question (with answers).
===Question
What is the appropriate form of teacher training to help new teachers improve their professional knowledge and teaching ability?
===Choices
Advanced degree program
Peer mentoring program
Knowledge lectures
Pre-job training
Classroom management wor... | Pre-job training | general_qa | 82 |
The following is a multiple choice question (with answers).
===Question
The basic work of expenditure management for culture, education, science and health is ( ).
===Choices
variable resource planning
estimated revenue allocation
periodic budget setting
fixed ratio and quantity management
fixed quota management
adjus... | fixed quota management | general_qa | 81 |
The following is a multiple choice question (with answers).
===Question
Which of the following reinforcing bars acts as a fixing and skeleton in an assembled T-shape simply supported girder bridge?
===Choices
Vertical positional reinforcement
Erection reinforcement
Spiral reinforcement
Slant reinforcement
Horizontal b... | Erection reinforcement | general_qa | 84 |
The following is a multiple choice question (with answers).
===Question
How many trailing zeroes are in the decimal representation of $n = 1 + \sum_{k=1}^{2014}k! \cdot (k^3 + 2k^2 + 3k + 1)?$
===Choices
500
508
509
502
505
503
501
507
504
506 | 504 | general_qa | 108 |
The following is a multiple choice question (with answers).
===Question
Consider the $R-L-C$ circuit given below. The circuit is driven by a $50\ Hz\ AC$ source with peak voltage $220\ V$. If $R = 400\Omega, C = 200\mu F$ and $L = 6H$, the maximum current in the circuit is closest to
===Choices
$$0.120\ A$$
$$5.5\ A$$... | $$0.55\ A$$ | general_qa | 168 |
The following is a multiple choice question (with answers).
===Question
What do we know about the people who built Stonehenge based on the analysis of animal teeth from a nearby village?
===Choices
They imported exotic animals from distant lands.
They hunted only large game animals, such as mammoths and bison.
They ra... | They brought animals to the site from outside of the region. | general_qa | 159 |
The following is a multiple choice question (with answers).
===Question
Calculate the osmotic work done by the kidneys in secreting 0.158 moles of Cl^- in a liter of urine water at 37°C when the concentration of Cl^- in plasma is 0.104 M, and in urine 0.158 M.
===Choices
60.1 cal
50.2 cal
52.6 cal
38.5 cal
55.3 cal
40... | 40.7 cal | general_qa | 139 |
The following is a multiple choice question (with answers).
===Question
A circuit contains $L, C$ and $R$ in series across a.c. mains and impedance of circuit is $Z$ when $H_L = X_C =R$. The frequency of source is changed till capacitive reactance $(X_C)$ gets doubled. The impedance of circuit will becomes-
===Choices... | $$\dfrac{Z\sqrt{19}}{2}$$ | general_qa | 190 |
The following is a multiple choice question (with answers).
===Question
In the movie 'That Crazy Little Thing Called Love', who is the actor that plays the editor Jiang Yang?
===Choices
William Chan IV
William Chan Sr.
William Chan Jr.
William Chan
Willian Chan
William Chan V
William Chan I
William Chan II
William Cha... | Willian Chan | general_qa | 77 |
The following is a multiple choice question (with answers).
===Question
Calculate the coverage times n, given that the number of instrument channels M = 240, the observation system is 6300-325-0, and the distance moved by the shot point d = 50 m. What is the coverage times?
===Choices
55
75
80
85
50
70
60
45
65
90 | 60 | general_qa | 103 |
The following is a multiple choice question (with answers).
===Question
Which of the following best describes the primary focus of kinesiology within the field of sports medicine?
===Choices
The role of hydration in athletic endurance
The legal responsibilities of sports professionals
The genetic factors influencing a... | The analysis of body movements and their impact on health | general_qa | 119 |
The following is a multiple choice question (with answers).
===Question
There are two types of continuous bacterial cultures: continuous culture with constant turbidity and continuous culture with constant composition. The vast majority of wastewater biological treatment methods adopt continuous culture with __________... | constant composition | general_qa | 95 |
The following is a multiple choice question (with answers).
===Question
In which year did the Royal Television Society receive its royal charter?
===Choices
1967
1966
1962
1970
1964
1961
1968
1965
1969
1963 | 1966 | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
What type of valve can be used to adjust the flow rate of a Roots blower?
===Choices
Taper Adjust Valve
Rotary Inlet Valve
Check Valve
Reduction Valve
Balance Release Valve
Imported Valve
Bypass Valve
Slide Control Valve
Export valve
Flow Divert V... | Bypass Valve | general_qa | 76 |
The following is a multiple choice question (with answers).
===Question
Rank the following turbocharging systems based on their scavenging performance under full load using the descending order: 1.Twin-pulse 2.Triple-pulse 3.Pulse-conversion 4.MPC
===Choices
1234
2431
2134
1324
4321
1342 | 1234 | general_qa | 91 |
The following is a multiple choice question (with answers).
===Question
What are the aspects of synergy between climate change issues and air pollution issues?
===Choices
Emission Status; Effect Mapping; Management Planning
Emission Frequency; Effect Diminution; Management System
Emission Sources; Effect Distribution;... | Emission Synergy; Effect Synergy; Management Synergy | general_qa | 138 |
The following is a multiple choice question (with answers).
===Question
Boiling when a hot wall above saturation temperature is immersed in a liquid with a free surface, called ()
===Choices
Broad region sublimation
Deep segment freezing
Extensive surface freezing
Wide area condensation
Small vessel evaporation
Shallo... | Large container boiling | general_qa | 87 |
The following is a multiple choice question (with answers).
===Question
Which of the following events marks the collapse of the gold standard system?
===Choices
In 1973, Nixon enforced energy crisis measures.
1929 Stock Market Crash occurred in the US.
In 1965, US reduced the silver in coin production.
Establishment o... | In 1971, Nixon announced the decoupling of the US dollar from gold. | general_qa | 168 |
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... | 7.18 kW, 1.61 kW | general_qa | 304 |
The following is a multiple choice question (with answers).
===Question
What type of radiation and energy level is used in radioactive nuclide PET imaging?
===Choices
Two β particles with 511 keV
511 keV gamma rays
A pair of γ photons at 511 keV
A pair of γ photons with energy of 1.02MeV
511 keV photons from proton in... | A pair of γ photons at 511 keV | general_qa | 138 |
The following is a multiple choice question (with answers).
===Question
The exact wave function of the ground state helium atom can be expressed as f(1)f(2), where f(i), i=1,2, are functions of the coordinates of electron i.
===Choices
Correct
Suitable
Efficient
Error
Complete
Accurate
Exact
maybe
Incomplete
Unknown | Error | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
The task of logical structure design using the relational model is to convert the E-R diagram into a set of ( ), and carry out ( ) processing.
===Choices
Data Chart; Normalization
Relationship Analysis; Simplification
Entity-Relationship Diagram; ... | Relationship Model; Normalization | general_qa | 107 |
The following is a multiple choice question (with answers).
===Question
The general solution of the difference equation $\Delta y_{t}=t$ is $y_{t}=()$.
===Choices
$\frac{} {} 3t \left( t+1 \right)+C$, where $\left( C \right)$ is an arbitrary constant.
$\frac{1} {2} t \left( 3t+1 \right)+C$, where $\left( C \right)$ is... | $\frac{1} {2} t \left( t-1 \right)+C$, where $\left( C \right)$ is an arbitrary constant. | general_qa | 366 |
The following is a multiple choice question (with answers).
===Question
Which of the following factors increases the glomerular filtration rate?
===Choices
Decreased plasma colloid osmotic pressure.
Decreased afferent arteriolar diameter.
Increased Bowman's capsule hydrostatic pressure.
Increased efferent arteriolar c... | Decreased plasma colloid osmotic pressure. | general_qa | 106 |
The following is a multiple choice question (with answers).
===Question
In China, those who obtain an engineering bidding agency qualification certificate through deceit, bribery, or other improper means should be subject to criminal penalties. Additionally, their __________ should be reviewed before deciding whether t... | qualification | general_qa | 84 |
The following is a multiple choice question (with answers).
===Question
Who is known to be the longest-serving premier in the history of the USSR?
===Choices
Nikolai Podgorny
Leonid Brezhnev
Nikolai Tikhonov
Nikita Khrushchev
Mikhail Gorbachev
Mikhail Frunze
Nikolai Bulganin
Yuri Andropov
Alexei Kosygin
Konstantin Che... | Alexei Kosygin | general_qa | 104 |
The following is a multiple choice question (with answers).
===Question
Among the following compounds, which one cannot oxidize HCl to Cl2?
===Choices
TiO2
ZnO2
MnO2
SiO2
ZnO
Co2O3
Na2O2
V2O5
Fe2O3 | TiO2 | general_qa | 74 |
The following is a multiple choice question (with answers).
===Question
What is the binomial expression for nonlinear percolation?
===Choices
$\Delta p = aQ^2 + bQ$
$\Delta p = aQ + dQ^2$
$\Delta p = bQ^2 + aQ$
$\Delta p = bQ + aQ^2$
$\Delta p = aQ^3 + bQ$
$\Delta p = Q^2 + bQ$
$\Delta p = aQ + cQ^2$
$\Delta p = aQ + ... | $\Delta p = aQ + bQ^2$ | general_qa | 148 |
The following is a multiple choice question (with answers).
===Question
Pneumoconiosis most likely to occur if a person is exposed to particle size range of:
===Choices
5-10 im
1 - 2.5 im
0.7 - 3.5 im
0.5 - 2.5 im
0.7 - 4.5 im
0.7 - 2.5 im
3-5 im
0.5 - 3 im
2 - 4 im
10-15 im | 0.5 - 3 im | general_qa | 116 |
The following is a multiple choice question (with answers).
===Question
What are aquatic sediments also known as?
===Choices
Sea-derived granular substances
Oceanic solid particles
Waterborne rock fragments
Submerged mineral resources
Submarine soil layers
Bioluminescent matter
Autobiogenic material
Aquatic mineral de... | Autobiogenic material | general_qa | 78 |
The following is a multiple choice question (with answers).
===Question
In Young's experiment $\lambda =$ 4000Å fringes observed have a width $\beta $ . The light illuminating with new $\lambda =$ 6000Å and the separation between the interfering sources is halved. The ratio of the distance between the screen and the in... | 3/1 | general_qa | 137 |
The following is a multiple choice question (with answers).
===Question
There are a number of hydrogen like atoms is free space. Initially all the atoms are stationary and in a particular excited level $A$. They undergo transitions from the initial level $A$ to the ground state. The recoiling atom enters a region of co... | The angular momenta of the electrons in the initial state of the emitting atoms is $\dfrac {3h}{2\pi}$ | general_qa | 353 |
The following is a multiple choice question (with answers).
===Question
Any $C^{\infty}$ function $f$ on a compact smooth manifold $M$ (without boundary) must have at least two critical points. When $M$ is the 2-torus, $f$ must have more than ______ critical points.
===Choices
$$0$$
$$5$$
$$8$$
$$1$$
$$2$$
$$3$$
$$4$$... | $$2$$ | general_qa | 110 |
The following is a multiple choice question (with answers).
===Question
What structure generally appears when the first phase is a recumbent fold and the second phase fold is superimposed transversely?
===Choices
Box folds
Linear folds
Zigzag folds
Concentric folds
Spiral folds
Sheath folds
Crescent, mushroom-shaped f... | Crescent, mushroom-shaped folds | general_qa | 90 |
The following is a multiple choice question (with answers).
===Question
The Berlekamp-Welch algorithm is mainly used to decode which two types of codes?
===Choices
BCH codes and Reed-Solomon codes with errors exactly at the correction capability
BCH codes and Reed-Solomon codes with errors slightly above the correctio... | BCH codes and Reed-Solomon codes | general_qa | 163 |
The following is a multiple choice question (with answers).
===Question
The identification characteristics of the nux vomica seed are flat, round, button-shaped or flat, oval; surface gray-green or gray-yellow; __________.
===Choices
The basal part of the seed has a circular protrusion known as the hilum.
Smooth but w... | Smooth and hairless appearance | general_qa | 122 |
The following is a multiple choice question (with answers).
===Question
What month, day, and year was House Resolution 7004, "Addressing the Governor's unacceptable actions in matters related to the appraiser certification program," introduced against Governor Kristi Noem?
===Choices
February 24, 2026
February 24, 202... | February 24, 2022 | general_qa | 169 |
The following is a multiple choice question (with answers).
===Question
At 1400 K, $K_c = 2.5 \times 10^{3}$ for the reaction $CH_4 (g) + 2H_2S \rightleftharpoons CS_2 (g) + 4H_2 (g)$. A 10.0 L reaction vessel at 1400 K contains 2.0 mol of $CH_4$, 3.0 mol of $CS_2$, 3.0 mol of $H_2$ and 4.0 mol of $H_2S$.The reaction w... | True | general_qa | 168 |
The following is a multiple choice question (with answers).
===Question
HACEK group includes all except:
===Choices
Haemophilus ducreyi
Haemophilus parahaemolyticus
Haemophilus parainfluenzae
Cardiobacterium hominis
Acinetobacter baumannii
Haemophilus influenzae
Eikenella corrodens
Haemophilus haemolyticus
Haemophilus... | Acinetobacter baumannii | general_qa | 113 |
The following is a multiple choice question (with answers).
===Question
The term 'layered' refers to which of the following mineral deposits:
===Choices
Are layered or stratified in sedimentary rocks
Are deposited in coastal sand formations
Are localized in alluvial fan deposits
Result from weathering of existing rock... | Are layered or stratified in sedimentary rocks | general_qa | 113 |
The following is a multiple choice question (with answers).
===Question
Which of the following sets of phrases best summarizes the following product?
Product Title: 600 Pezzi Pom Pom di Natale Palline di Pom Soffici Mini Pompon per Decorazioni per Feste di Natale Fai-Da-Te (Rosso, Verde e Bianco)
Product Description: C... | ponpon, piccoli, mini, palline | general_qa | 616 |
The following is a multiple choice question (with answers).
===Question
In China, the mine under the collective land belongs to ( ).
===Choices
Foreign mining entity
Local government
National mining corporation
Environmental organization
Peasant collective
State
Agricultural cooperative
Society
Rural land contractor
P... | State | general_qa | 65 |
The following is a multiple choice question (with answers).
===Question
What is the free-flight range angle if the re-entry angle and powered flight range angle are 3 degrees and the total range calculated is 67 degrees?
===Choices
57°
60°
73°
64°
55°
61°
59°
66°
48°
62° | 61° | general_qa | 88 |
The following is a multiple choice question (with answers).
===Question
Given a uniform cone with a radius of $r$ and a height of $h$, find the condition _____ under which its inertia ellipsoid with respect to the centroid degenerates into a sphere.
===Choices
$$
h=5r
$$
$$
h=4r
$$
$$
h=3r
$$
$$
h=\pi r
$$
$$
h=r/2
$$... | $$
h=2r
$$ | general_qa | 154 |
The following is a multiple choice question (with answers).
===Question
Let
$$
R_{1}=\left\{ \begin{matrix} {{{0.1}}} & {{{0}}} & {{{0.8}}} \\ {{{0.9}}} & {{{0.5}}} & {{{0}}} \\ {{{0}}} & {{{0.4}}} & {{{0.3}}} \\ \end{matrix} \right\}, \quad R_{2}=\left\{ \begin{matrix} {{{0.7}}} & {{{0.2}}} & {{{0.4}}} \\ {{{0.3}}} & ... | $$
R_1\cup R_2=\left\{\begin{matrix}0.7&0.2&0.8\\0.9&0.5&0.6\\1&0.5&0.3\end{matrix}\right\}
$$ | general_qa | 784 |
The following is a multiple choice question (with answers).
===Question
For the reaction :
$$CH_4(g) + 2 O_2 (g) \rightarrow CO_2(g) + 2 H_2O (g)$$
===Choices
$$\Delta H > \Delta E$$
$$\Delta H = \Delta E$$
$$\Delta H < \Delta E$$
$\Delta H$ is independent of the physical state of products but depends on reactants
$\D... | $\Delta H$ is independent of physical state of reactant and product | general_qa | 192 |
The following is a multiple choice question (with answers).
===Question
The successful experience of maintaining the Qing Dynasty for 267 years is
===Choices
diversification of ruling methods and centralized responses
diversification of ruling methods and decentralized responses
diversification of ruling methods and t... | diversification of ruling methods and timely responses | general_qa | 120 |
The following is a multiple choice question (with answers).
===Question
The internal unity of the affirmative and negative aspects of things, in terms of their manifestation, which of the following is correct?
===Choices
It is a process of spiraling upward or advancing in waves.
It is an alternating swing or steady pr... | It is a process of spiraling upward or advancing in waves. | general_qa | 141 |
The following is a multiple choice question (with answers).
===Question
Let $n$ be the number of distinct ordered pairs $(x,y)$ of positive integers such that $1 \le x,y \le 49$ and $\dfrac{x^2 + xy + y^2}{49}$ is an integer. Find $n$ .
===Choices
136
130
133
132
135
119
121
131
120
134 | 133 | general_qa | 114 |
The following is a multiple choice question (with answers).
===Question
The air enters the dryer with a temperature of 60°C, a pressure of 99.3 kPa, and a relative humidity of 10%, at a flow rate of 1500 cubic meters per hour. The moisture evaporation rate inside the dryer is 25 kilograms per hour. The air leaving the ... | 78% | general_qa | 149 |
The following is a multiple choice question (with answers).
===Question
When Cu plate is dipped in a solution of $CuSO_4$ its electrode potential was found to be zero volt at $25^0C$ conc. of $CuSO_4$ solution ( Given $E^0_{Cu^{2+}/cu}= 0.32 V$)
===Choices
$0.001$ M
0.1 M
0.2 M
0.05 M
$1$ M
None of these
0.5 M
0.01 M
... | $1$ M | general_qa | 132 |
The following is a multiple choice question (with answers).
===Question
What is the mathematical formula used to calculate the area of any polygon on a Cartesian plane called?
===Choices
Shoelace formula
Polygon Measurement theorem
Surveyor's theorem
Polygon Area formula
Polygon Measurement formula
Gauss's area formul... | Surveyor's formula | general_qa | 83 |
The following is a multiple choice question (with answers).
===Question
What governor decided that Juneteenth should only be recognized for one year in 2020?
===Choices
Kristi Noem
Greg Abbott
Mike DeWine
Mike Pence
John Kasich | Kristi Noem | general_qa | 56 |
The following is a multiple choice question (with answers).
===Question
Which method is used for safe disposal of Mercury?
===Choices
Collect and store in a sealed container for disposal
Treatment with Chemical
Store in a sealed container
Combustion
Bury under eah
Collect carefully & reuse
Collect and store in a seale... | Collect carefully & reuse | general_qa | 96 |
The following is a multiple choice question (with answers).
===Question
The compound that is less likely to react with HCN is ( ).
===Choices
3-pentanone
2-pentanone
2-methylpropanal
cyclopentanone
cyclohexanone
phenylacetaldehyde
2-methylbutanone
2-methylbutanal
2-methylcyclohexanone
acetophenone | acetophenone | general_qa | 97 |
The following is a multiple choice question (with answers).
===Question
$H_2S$ behaves as a weak diprotic acid in aqueous solution. Which of the following is the correct ex-planation for pH of a solution of $H_2S$ in terms of $pK_1,pK_2,[H_2S]$ and $[S^{2-}]$
===Choices
$$pH=\left( { pK }_{ 1 }+{ pK }_{ 2 }-\log { \fr... | $$pH=\frac 12(pK_1+pK_2)$$ | general_qa | 544 |
The following is a multiple choice question (with answers).
===Question
Which of the following plants shares the most similarities with the snow lotus in terms of flower structure?
===Choices
Orchid
Water Lily
Chrysanthemum
Marigold
Dandelion
Sunflower
Bellflower
Daisy
Lotus
Lavender | Chrysanthemum | general_qa | 73 |
The following is a multiple choice question (with answers).
===Question
The $\textit{digital root}$ of a number is defined as the result obtained by repeatedly adding the digits of the number until a single digit remains. For example, the $\textit{digital root}$ of $237$ is $3$ ( $2+3+7=12, 1+2=3$ ). Find the $\textit{... | 4 | general_qa | 133 |
The following is a multiple choice question (with answers).
===Question
With the development of social economy and the advancement of computer and communication technologies, market information has shown the following prominent development trends:
I. Dramatic increase in information volume
II. Accelerated speed of info... | I,II,III,IV,V | general_qa | 145 |
The following is a multiple choice question (with answers).
===Question
Calculate the double integral:
$$
\int\int_{R}{\left(x \cdot y \cdot \sqrt{x^2+y^2}\right) d A}
$$
where $R=\left\{(x,y)|0 \le x \le 1,0 \le y \le 2\right\}$.
===Choices
frac{25\cdot\sqrt{5}-32}{15}
frac{25\cdot\sqrt{5}-38}{15}
frac{25\cdot\sqrt{5... | frac{25\cdot\sqrt{5}-33}{15} | general_qa | 257 |
The following is a multiple choice question (with answers).
===Question
Which of the following options reflects the process of a man-made instrument called "Shida" used for rain-seeking?
===Choices
Wax Ceremony
Music of Yin Kang
Music and Dance of Ge Tian
Music of Yuan Chi
Dance of Zhu Xiang
Rituals in Long Feng
Cerem... | Music and Dance of Ge Tian | general_qa | 104 |
The following is a multiple choice question (with answers).
===Question
What is the Rate-Determining Step Method?
===Choices
Evaluate the diffusion speed of the gas (ds/dt) amid various atmospheric pressure levels or humidity conditions.
Determine the combustion rate of the gas (dc/dt) through different oxygen concent... | Measure the permeation rate of the solution (dh/dt) under different liquid level height differences or external applied pressures. | general_qa | 223 |
The following is a multiple choice question (with answers).
===Question
At a certain frequency, the impedance ratio of the capacitor $C$ to the resistor $R$ is $Z_{C} : Z_{R} = 3 : 4$. Now, after connecting them in series, apply an AC voltage $U = 100 \mathrm{V}$ at this frequency. What is the phase difference $\varphi... | $$
- 3 7^{\circ}
$$ | general_qa | 234 |
The following is a multiple choice question (with answers).
===Question
According to Piaget's perspective, if children do not view rules as unchangeable but rather as mutual agreements among peers, this indicates that their moral development is at which stage?
===Choices
The autonomy stage
Egocentric stage
The relatio... | Reversibility stage | general_qa | 96 |
The following is a multiple choice question (with answers).
===Question
Which of the following groups of animals all have internal nostrils?
===Choices
Lancelet, toad, lungfish, carp
Catfish, finches, frogs, newts
Lamprey, dog, cat, and skink
Grass carp, tortoise, platypus, finch
Trout, geckos, chickens, dolphins
Frog... | Frogs, turtles, ostriches, lungfish | general_qa | 154 |
The following is a multiple choice question (with answers).
===Question
$int {{{1 + sin x} over {sin x(1 + cos x)}}} dx = \left( {} \right)$
===Choices
${1 over 4}{tan ^3}{x over 2} + tan {x over 2} + ln left| {tan x} right| + C$
${1 over 4}{tan ^2}{x over 2} + {1 over 2}tan {x over 2} + ln left| {tan {x over 2}} righ... | ${1 over 4}{tan ^2}{x over 2} + tan {x over 2} + {1 over 2}ln left| {tan {x over 2}} right| + C$ | general_qa | 556 |
The following is a multiple choice question (with answers).
===Question
In the F Jue Ya-yue scale, which of the following correctly describes the relationship between Bian Gong and Bian Zhi?
===Choices
The compound interval formed by the Bian Zhi G and the Bian Gong ♭C is a diminished eleventh
The compound notes forme... | The compound notes formed by the Bian Zhi G and the Bian Gong C is a perfect eleventh | general_qa | 134 |
The following is a multiple choice question (with answers).
===Question
A team wants to do a number of jobs in series over the next 18 days. The required implementation time (days), deadline (which must be completed within the specified number of days) and profit for each of the optional activities are shown in the fol... | 25 | general_qa | 244 |
The following is a multiple choice question (with answers).
===Question
Teachers apply the processes and methods of previous teaching monitoring appropriately to the same or similar environment. What does this show about teachers' ability to monitor teaching?
===Choices
Automatic from unconscious to conscious
Increase... | The mobility is gradually increasing | general_qa | 93 |
The following is a multiple choice question (with answers).
===Question
The temperate deciduous broad-leaved forest area of Northeast China and North China includes the eastern mountainous area of Northeast China, the Northern mountainous area, the hills and mountains of Shandong and Liaodong, the southern part of the ... | Temperate coniferous-deciduous broadleaf mixed forest zone, warm temperate deciduous broadleaf forest zone. | general_qa | 259 |
The following is a multiple choice question (with answers).
===Question
What is the CAS number of 1-naphthaldehyde?
===Choices
66-77-6
66-77-9
66-77-2
66-77-1
66-77-3
66-77-8
66-77-0
66-77-5
66-77-7
66-77-4 | 66-77-3 | general_qa | 109 |
The following is a multiple choice question (with answers).
===Question
Step index fiber core radius $a = \! 25\mu{m}$, refractive index $n_{1}=1.5$, relative refractive index difference $\Delta \! = \! 1\%$, length $L=1$km. Problem: If the cladding and surface coating of the fiber are removed, the NA (numerical apertu... | $$
1; 1. 1 \ \mu\mathrm{s}
$$ | general_qa | 296 |
The following is a multiple choice question (with answers).
===Question
For the specified watershed, what determines the soil evaporation capacity?
===Choices
Groundwater Recharge Rates
Vegetation Growth Patterns
Atmospheric Pressure Levels
Meteorological Elements
Rainfall Characteristics
River Flow Dynamics
Surface R... | Meteorological Elements | general_qa | 79 |
The following is a multiple choice question (with answers).
===Question
pH of 0.1 M solution of $NaA$ (sodium salt of a weak acid $HA$) is 8.92. Calculate ${ pK }_{ a }$ of $HA$. If a drop of HPh $\left( { pK }_{ in }=9.52 \right) $ be added to the above solution, predict whether the pink colour will visible or not un... | Pink colour will be visible | general_qa | 208 |
The following is a multiple choice question (with answers).
===Question
An adiabatic cylinder closed at both ends consists of a freely moving non-conducting piston which divides the cylinder into two equal parts and each part contains $28\ g$ of $N_{2}$. Initially $1/3rd$ molecules of nitrogen in the right part are dis... | $$-1414\ J$$ | general_qa | 277 |
The following is a multiple choice question (with answers).
===Question
According to Chinese contract law, if the right to rescind a contract is not exercised within 1 year from the date the person knows the reason for rescission, the right to rescind will be extinguished. This provision falls under which category?
==... | Statute of limitations | general_qa | 115 |
The following is a multiple choice question (with answers).
===Question
Which day, month, and year did Admiral Austin Melvin Knight marry Alice Tobey?
===Choices
January 3, 1873
January 3, 1872
January 3, 1879
January 3, 1874
January 3, 1881
January 3, 1876
January 3, 1877
January 3, 1880
January 3, 1875
January 3, 18... | January 3, 1878 | general_qa | 134 |
The following is a multiple choice question (with answers).
===Question
Let the reset potential be
$$
w ( z )=( 1+i ) \ln \left( z^{i}+1 \right)+( 2-3 i ) \ln \left( z^{i}+4 \right)+\frac{1} {z},
$$
calculate the fluid volume flow rate $Q$ through the circle $x^{2}+y^{2} \leq9$.
===Choices
$$
1 2 \pi
$$
$$
6 2 \pi
$$
... | $$
1 2 \pi
$$ | general_qa | 206 |
The following is a multiple choice question (with answers).
===Question
Under the condition of 1600°C , what is the diffusion behavior of $\mathrm{Mg}^{2+}$ in MgO crystals containing 1 part per million of $Al_2O_3$ impurities?
( the formation energy of Schottky defects in MgO crystals is $6 \, \mathrm{eV} = 9.612 \tim... | Non-intrinsic diffusion | general_qa | 197 |
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