q_id int64 0 1.3k | question stringlengths 116 5.2k | cot_ids listlengths 16 16 | cots listlengths 16 16 | parsed_answers listlengths 16 16 | answer stringclasses 10
values |
|---|---|---|---|---|---|
0 | Question: Among the following product categories, which one may have the attribute number of teeth?
(A). jewelry set
(B). portable stove
(C). skipping rope
(D). gear
(E). saw | [
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] | [
[
"Let's think step by step.",
"The attribute \"number of teeth\" is related to objects that have teeth-like structures designed for cutting or gripping.",
"Among the given options, a saw is the only object known for having teeth.",
"The answer is (E)."
],
[
"We are looking for a product cat... | [
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E"
] | E |
1 | Question: Which one can be used when configuring the IP address for the host?
(A). 192.5.91.255
(B). 172.16.0.0
(C). 192.168.0.0
(D). 127.0.0.1
(E). 220.103.256.56
(F). 169.254.255.255
(G). 169.254.1.1
(H). 224.0.0.1
(I). 127.21.19.109
(J). 29.9.255.18 | [
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9,
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11,
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] | [
[
"Let's analyze each option:",
"**(A). 192.5.91.255**",
"This IP address is a potential valid IP address within a private IP range based on standard IP address ranges.",
"** (B). 172.16.0.0**",
"This is a valid private IP address within the 172.16.0.0 - 172.31.255.255 range.",
"**(C). 192.1... | [
"C",
"C",
"A",
"C",
"B",
"C",
"B",
"C",
"B",
"C",
"A",
"A",
"A",
"B",
"B",
"C"
] | J |
2 | Question: What is the index of acceptance of pavement structure in the design specification for highway asphalt pavements?
(A). Average surface roughness
(B). Design bending settlement value
(C). Peak compressive strength
(D). Bending tensile stress
(E). Allowable bending settlement
(F). Shear stress
(G). Critical shea... | [
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2,
3,
4,
5,
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7,
8,
9,
10,
11,
12,
13,
14,
15
] | [
[
"The index of acceptance for pavement structure relates to the performance and structural adequacy of the pavement.",
"Among the given options, the most relevant to pavement structural design acceptance is the maximum allowable deformation or settlement.",
"This deformation is carefully controlled to... | [
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"B",
"E",
"E",
"E",
"E"
] | D |
3 | Question: What is the basic block of the program?
(A). A loop structure
(B). A code segment containing jump instructions
(C). A series of conditional branch statements
(D). An interruptible instruction sequence
(E). A program segment without nesting
(F). A segment of code that can be executed concurrently
(G). A sequen... | [
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4,
5,
6,
7,
8,
9,
10,
11,
12,
13,
14,
15
] | [
[
"A basic block is the fundamental structural unit of a program that is considered for optimization and analysis.",
"A basic block is a sequence of instructions where the flow of execution is linear and uninterrupted by any conditional statements or jumps.",
"Therefore, the best answer that embodies th... | [
"E",
"G",
"E",
"E",
"E",
"E",
"E",
"E",
"G",
"E",
"E",
"E",
"E",
"E",
"E",
"I"
] | G |
4 | Question: Within the range of $R e < 2 \times 10^{5}$, the Fanning friction factor for fully developed turbulent flow in a pipe can be represented by the Blasius formula: $f=0.046 R e^{-1/5}$. Attempt to derive the expression for the laminar sublayer thickness.
(A). $$
=4 2. 0 R e^{-3 / 5}
$$
(B). $$
=4 5. 0 R e^{-7 / ... | [
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] | [
[
"The laminar sublayer thickness, denoted as δ, is the region near the pipe wall where the flow behavior transitions from fully turbulent to laminar. It's characterized by a velocity profile that follows a linear relationship.",
"The velocity profile at the edge of the laminar sublayer, denoted as u*, is... | [
"I",
"A",
"I",
"H",
"D",
"H",
"E",
"E",
"D",
"I",
"D",
"D",
"C",
"D",
"D",
"A"
] | D |
5 | Question: What changes occur in gray cast iron after inoculation treatment to improve its mechanical properties?
(A). Reduce graphite flake size
(B). Miniaturization of graphite flakes
(C). Changes in matrix structure
(D). Elimination of graphite content
(E). Make graphite flakes coarse
(F). Larger graphite clusters
(G... | [
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] | [
[
"Here's a breakdown of why the best answer is **(B)**",
"Inoculation treatment for gray cast iron is specifically designed to modify the graphite structure.",
"Graphite flakes in untreated gray cast iron are relatively large, which can lead to stress concentration and reduced strength.",
"Inoculat... | [
"B",
"A",
"B",
"B",
"B",
"B",
"B",
"B",
"B",
"B",
"B",
"B",
"B",
"B",
"B",
"B"
] | B |
6 | Question: Incompressible fluid flows into a rectangular channel with a width of $b$ and a height of $2h$ at a velocity of $u_{0}$ (where $b \gg a$), forming a velocity boundary layer from the inlet. It is known that the thickness of the boundary layer can be approximately estimated by the expression $\delta = 5.48 \sqr... | [
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] | [
[
"Here's how to derive the expression for the flow entrance length:",
"First, we need to understand what the flow entrance length represents. It is the distance along the channel where the velocity profile develops fully and transitions from the initial velocity boundary layer to a fully developed, parab... | [
"J",
"F",
"J",
"J",
"H",
"E",
"J",
"D",
"J",
"J",
"J",
"J",
"J",
"G",
"E",
"J"
] | J |
7 | Question: Who invented the Jacquard loom in 1804?
(A). Joseph Marie Jacquartt
(B). Joseph Marie Jacquartd
(C). Joseph Marie Jacquardt
(D). Joseph Marie Jacquert
(E). Joseph Marie Jacquard
(F). Joseph Marie Jacquart
(G). Joseph Marie Jacqard
(H). Joseph Marie Jacqart
(I). Joseph Marie Jacquadt
(J). Joseph Marie Jacqartt | [
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] | [
[
"The question asks for the inventor of the Jacquard loom.",
"The name \"Jacquard\" is a recognized surname and should be consistently spelled that way throughout the answer choices.",
"We need to find the answer choice that correctly spells \"Jacquard\".",
"The answer is (E)."
],
[
"Let's ... | [
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E",
"E"
] | E |
8 | Question: The activity coefficient of titanium in molten iron (1600°C) is given as $\gamma_{\mathrm{Ti}} = 0.011$. Calculate the activity coefficient $f_{\mathrm{Ti}}$ of titanium in a solution with a standard state of 1% by mass at the same temperature.
(A). $0.008$
(B). $0.271$
(C). $0.143$
(D). $0.492$
(E). $0.770$
... | [
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[
"The activity coefficient ($f$) of a component in a solution is related to the activity coefficient ($ \\gamma$) and the mole fraction ($x$) of that component at a given temperature:",
"$$\nf = \\gamma \\times x\n$$",
"First, we need to convert the standard state of 1% by mass to a mole fraction.",
... | [
"A",
"G",
"A",
"J",
"A",
"A",
"I",
"A",
"I",
"I",
"C",
"D",
"A",
"E",
"A",
"B"
] | C |
9 | Question: Anchors with good performance should meet (select all the correct options): :(1) have a large grip coefficient at a certain weight; (2) It is convenient to throw and anchor, and the structure is firm (3) It can quickly bite people in the soil when anchoring; (4) It is easy to excavate when the anchor is lifte... | [
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] | [
[
"A good anchor's primary function is to securely hold a vessel in place.",
"This means it needs a strong grip (option 1).",
"It should also be easy to handle and deploy (options 2 and 4).",
"While a quick bite into the soil is desirable (option 3), the ability to readily release is essential for ... | [
"E",
"E",
"C",
"E",
"E",
"G",
"E",
"E",
"G",
"E",
"E",
"E",
"G",
"E",
"E",
"E"
] | G |
10 | Question: Required to concentrate a 1500 kg/h calcium chloride (${CaCl}_{2}$) aqueous solution from a concentration of 0.10 to 0.25. The feed temperature is 25°C, and the boiling point of the solution under operating conditions is 110°C. The heating steam used is at 400 kPa, and heat loss accounts for 5% of the evapora... | [
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15
] | [
[
"Let's think step by step.",
"First, we need to calculate the heat required to concentrate the solution. This can be done using the following equation:",
"Q = m * Cp * ΔT",
"Where:\n* Q is the heat required (kJ/h)\n* m is the mass flow rate of the solution (kg/h)\n* Cp is the specific heat capacit... | [
"G",
"G",
"G",
"J",
"H",
"C",
"C",
"I",
"G",
"I",
"J",
"J",
"G",
"G",
"G",
"G"
] | G |
11 | Question: The shell plating of the main hull is thickest within the range of
(A). 0.4L amidships
(B). Bow
(C). 0.75L amidships
(D). Stern | [
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[
"Let's think step by step.",
"The hull plating is designed to withstand the greatest stresses in a vessel's most critical regions.",
"Amidships (the middle section of the ship) experiences the least bending stresses compared to the bow and stern. Therefore, the shell plating thickness is generally th... | [
"C",
"C",
"C",
"C",
"C",
"C",
"C",
"C",
"C",
"C",
"C",
"C",
"C",
"C",
"C",
"C"
] | A |
12 | Question: Where does the retrograde sand wave in the riverbed occur?
(A). Shallow water area
(B). Within a floodplain
(C). In a rocky outcrop
(D). Near the riverbank
(E). Underneath a bridge
(F). Fast-flowing current section
(G). Deep water channel
(H). In a tidal zone
(I). In a stagnant pool
(J). At the river's mouth | [
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] | [
[
"Retrograde sand waves are formed by the backward movement of sediment in a flow.",
"This backward movement typically occurs when the flow's energy is reduced, allowing sediment to be deposited despite the downstream flow.",
"Fast-flowing currents have enough energy to transport sediment downstream wi... | [
"I",
"F",
"A",
"A",
"F",
"F",
"A",
"I",
"A",
"F",
"F",
"A",
"A",
"G",
"A",
"F"
] | H |
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