DSSSB AE Civil Tier 1 Mock Test - 4 - Civil Engineering (CE) MCQ

Concept:

Greenhouse Effect: The solar energy trapped by the earth atmosphere and radiate it slowly so to cover our earth with a warm blanket. This is the natural process of the greenhouse effect on earth to maintain its temperature and makes the earth perfect for life.

Greenhouse gases are carbon dioxide, other greenhouse gases are methane, water vapour, nitrous oxide, CFCs and ozone. 

Values of radiation absorbed by the greenhouse gases are as follow:

Explanation:

Global Warming

• An increase in the average temperature of the earth surface due to the greenhouse effect is called global warming
• It also refers to the increase in the average temperature of the air and sea at the earth's surface.
• The greenhouse gases combined increased the temperature of planet earth so the correct option is greenhouse gases.

In this question consider the total distance as 100%. Hence the sum of their speeds will be 75%
per hour. Checking option (c)
If the bus took 6 hours, it would cover 16.66% distance per hour and the car would cover 25%
distance per hour. (as it takes 2 hours less than the bus.)
This gives an addition of only 41.66%. Hence, the answer is not correct.
Option (b) is the correct answer.

Let the number = x

Second is the process of gradual disappearances of the first.

Trapezoid, Rhombus, and Parallelogram are the 2 dimensional figure.

While;

Prism is a 3-dimensional figure.

Hence, "Prism" is the correct answer.

Important Points

The logic followed is:

Given code: "MANIPUR is written as NBOJQVS" 

Similarly,

Thus "PATTERN will be written as "QBUUFSO".

Hence, the correct answer is "QBUUFSO". 

''आकुंचन - प्रसारण'' सही व‍िलोम शब्‍द-युग्‍म है। अन्‍य व‍िकल्‍प असंगत हैं। 

Key Points 

• आकुंचन का अर्थ- सिकुड़ना
• प्रसारण का अर्थ- फैलना
• अत: आकुंचन का व‍िलोम प्रसारण है।
• अन्‍य सभी व‍िकल्‍पों में द‍िए गए शब्‍द एक-दूसरे के सही व‍िलोम नहीं हैं। 

अन्‍य व‍िकल्‍प- 

Important Points कुछ अन्‍य व‍िलोम शब्‍द- 

अधिनायक,  यौगिक शब्द है।

Key Points

• अधिनायक- शब्द अधि व नायक शब्दों की संधि से बना है।
• अधि - (मुख्य) ,  नायक- (स्वामी)

Important Points 

Additional Information 

"जहाँ किसी बात का डर या खतरा न हो" निरापद कहलाता है। अन्‍य व‍िकल्‍प असंगत हैं। 

Key Points

•  न‍िरापद- जहॉं किसी बात का डर या खतरा न हो। 

​अन्‍य व‍िकल्‍प- 

Important Points 

Additional Information 

Diversion: The act of turning aside or redirecting from a course or path, often to something more enjoyable or entertaining.
Deviation: The act of departing or straying from a standard or expected course; a divergence or deviation from the norm.

The meaning of word Appreciation (Noun) is: Thankfulness. It’s antonym should be: Aspersions, e.g, to criticize harshly.

Messenger : a person who carries a message or is employed to carry messages.
Steward : a person employed to look after the passengers on a ship, aircraft, or train.
Forerunner : a person or thing that precedes the coming or development of someone or something else.
Pilot : a person who operates the flying controls of an aircraft.

Harbinger : a forerunner of something.

Let us first learn the meanings of the given words:
Cornerstone (noun): an important quality or feature on which a particular thing depends or is based.
Crux (noun): the decisive or most important point at issue.
Premise (noun): a previous statement or proposition from which another is inferred or follows as a conclusion.
The idea here is to express that a healthy environment is the basis of a healthy climate. Thus, ‘cornerstone’ and ‘crux’ fit the blank while ‘premise’ is contextually weak.

Hence, the correct answer is option A.

Use structure “subject + auxiliary + not + present participle + to + object”
As per the given above sentence is given in Active Voice.
His whereabouts are not know to me.
Therefore , option A will be correct sentence .

Hence option (C) will be correct.

Hence the option C is correct.

Hence the option D is correct.

Hence the option D is correct.

Section modulus, (Z=1/Y_max)

where (I=bd³/12)&(y_max=d/2)

Now

(Z=(bd³/12)/(d/2)=bd²/6)

Hence the option B is correct.

Hence the option D is correct.

(E=Normal stress/Normal strain=σ/ε)

Hence the option A is correct.

The steel is directly exposed to weather and is not accessible for cleaning and repainting. The thickness shall be not less than 8 mm. These provisions do not apply to the web of Indian standard rolled steel joists and channels to packings.

Steelwork not Directly Exposed to Weather. The thickness of steel in main members not directly exposed to weather shall be not less than 6 mm.

The thickness of steel in secondary members not directly exposed to weather shall be not less than 4-5 mm.

Hence the option B is correct.

Hence the option B is correct.

Hence the option A is correct.

C_sagg=−100×30²/24×200²

C_Sag=0.09

Correct distance =100−0.09=99.9m

Hence the option D is correct.

Hence the option D is correct.

Hence the option C is correct.

Hence the option B is correct.

Hence the option C is correct.

Hence the option D is correct.