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Exams: THX Home Theater Level 1 – CHINESE
Home Theater Level 1 Chinese
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Information
This is the home theater level 1 in Chinese.
You are required to pass this exam to receive your THX Certified Professional Home Theater Level 1 certificate. This is an untimed test, so take your time. The passing score is 85% and you have three attempts to pass the exam. You have three weeks from the end of class to take and pass the exam. If you have any questions, comments or concerns, please email [email protected]. Thank you and good luck.
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Congratulations! You passed the THX Home Theater Installer Level One CHINESE exam.
In the THX Professional Portal, you now have access to all corresponding resources including logo files and style and usage guides. Your certificate will be mailed to you, and you will be listed on our website in the THX Certified Technician Locator, so please be sure your contact information in your Professional Portal account is up-to-date.
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You gave it a good effort, but you have to score an 85% or higher in order to pass. The good news is that you are allowed 3 attempts at this exam. So review your answers and give it another go when you’re ready.
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Question 1 of 29
1
Why was THX founded?
THX 为什么而建立?28 remaining
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Question 2 of 29
2
True or False: The design, equipment and experience of commercial cinemas and home theaters are basically the same other than scale?
判断对错:除大小规模外,商业电影院和家庭影院的设计、设备和体验是基本相同的吗?27 remaining
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Question 3 of 29
3
Why do we set time delay?
为什么我们设定时间延迟?26 remaining
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Question 4 of 29
4
Why is bass management recommended?
为什么推荐使用低音管理?25 remaining
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Question 5 of 29
5
What is reference level?
什么是参考声压级?24 remaining
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Question 6 of 29
6
What is the Reference Level in SPL, including headroom for all speakers (except subwoofer) at the primary listening position?
SPL中的参考电平是多少?包括主要聆听位置的所有扬声器(低音炮除外)的余量?23 remaining
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Question 7 of 29
7
True or false, THX LFE headroom is 20dB
判断正误:THX LFE 余量为20 DB22 remaining
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Question 8 of 29
8
Which is not an acoustical goal or metric?
哪个不是声学目标或指标?21 remaining
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Question 9 of 29
9
True or false, Subwoofer position can mitigate modal peaks and nulls. 判断对错:重低音扬声器的位置可以减轻峰值和空值
20 remaining
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Question 10 of 29
10
What is the minimum sized THX Certified system should be used to meet reference level in a room that is 2,000 cubic feet and the primary seat is 10’ from the display?
应用于2000立方英尺的房间,主要座位距离显示器10’,最小尺寸的THX认证系统是以下选项中的:19 remaining
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Question 11 of 29
11
What is the most effective way to increase the dynamic range of a home theater system?
最有效地增加家庭影院系统动态范围的方法是什么?18 remaining
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Question 12 of 29
12
True or False: An Ultra/ Ultra 2 system is designed to support rooms that are approx. 3,000 cubic feet.
判断对错: Ultra / Ultra 2系统旨在支持大约3000立方英尺的房间17 remaining
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Question 13 of 29
13
26. What is the speed of sound at sea level?
海平面的声音速度是多少?16 remaining
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Question 14 of 29
14
How can you identify sources of rattles in a home theater?
如何识别家庭影院中所产生的振动的来源?15 remaining
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Question 15 of 29
15
This picture represents a speaker’s:
上图为扬声器的:14 remaining
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Question 16 of 29
16
What is the recommended maximum vertical (orthogonal) viewing angle suggested for a video display from any seat?
对于任意座位,视频显示器的建议最大垂直(正交)视角是多少?13 remaining
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Question 17 of 29
17
What is the recommended height for the front speakers?
前置扬声器的建议高度是多少?12 remaining
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Question 18 of 29
18
The range of colors that a display, based on a given standard, is knows as:
基于给定标准的显示器的颜色范围称为:11 remaining
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Question 19 of 29
19
The copyright protection used in HDMI is known as ___________?
中使用的版权保护称为:- The copyright protection is known as (HDCP).
10 remaining
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Question 20 of 29
20
The difference between the noise floor and the max volume level in a home theater is known as
家庭影院中的本底噪声和最大音量之间的差异被称为9 remaining
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Question 21 of 29
21
Which is not a type of acoustic treatment
下列选项中不是声学处理的是?8 remaining
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Question 22 of 29
22
What is the most common residential speaker impedance?
最常见的家用扬声器阻抗?7 remaining
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Question 23 of 29
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21. When turning down the volume on a surround sound system the sound stage often collapses, and homeowners miss out on critical details. THX certified Select and Ultra receivers use ________________, which is a proprietary THX setting that rebalances the surround channels so they can be heard at lower levels (starting at -10dB).
当调低环绕声系统的音量时,声场经常会崩溃,观众会错过关键细节。THX认证的Select和Ultra接收器使用________________,这是一种专有的THX设置,可重新平衡环绕声通道,以便在较低的水平(从-10dB开始)听到它们。6 remaining
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Question 24 of 29
24
Which is not a THX approved video mode?
以下哪个不是THX认证的视频模式?5 remaining
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Question 25 of 29
25
Which is not a type of standing wave?
以下哪种不属于驻波?4 remaining
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Question 26 of 29
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What is the recommended minimum horizontal viewing angle for the seats furthest from the screen/display?
对于离银幕/显示屏最远的座位,建议的最小水平视角是多少?3 remaining
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Question 27 of 29
27
If two speakers receive the same signal and one is moving out while the other is moving in, what phase are the speakers in?
如果两个扬声器接收到相同的信号而另一个扬声器向外而另一个扬声器向内,那么扬声器相位处在?2 remaining
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Question 28 of 29
28
Which of these statements is true?
以下命题哪个为真?1 remaining
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Question 29 of 29
29
What is the correct range of angles from the center speaker to either the front left or front right speaker?
左前和右前扬声器的正中角度范围是多少?0 remaining