MCQs

Civil Engineering MCQs with Explanations

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3001Civil EngineeringMedium

The initial setting time for ordinary Portland cement as per IS specifications should not be less than________?

A600 minutes

B60 minutes

C10 minutes

D30 minutes

Correct answer

D. 30 minutes

Explanation

The correct answer is 30 minutes.

3002Civil EngineeringMedium

The treatment of water with bleaching powder is known as________?

Aprechlorination

Bsuper chlorination

Chypochlorination

Ddechlorination

Correct answer

C. hypochlorination

Explanation

The correct answer is hypochlorination.

3003Civil EngineeringMedium

The spectral region of the electromagnetic radiation which passes through the atmosphere without much attenuation is known as________?

AOzone window

BOzone hole

CBlack hole

DAtmospheric window

Correct answer

D. Atmospheric window

Explanation

The correct answer is Atmospheric window.

3004Civil EngineeringMedium

Due to battering action of wheels over the end of the rails, the rails get bent down and are deflected at ends. These rails are called________?

Ahogged rails

Bcorrugated rails

Croaring rails

Dbuckled rails

Correct answer

A. hogged rails

Explanation

The correct answer is hogged rails.

3005Civil EngineeringMedium

Assertion A. : Discharging the effluents from the oxidation ponds just up stream of lakes or reservoirs is undesirable. Reason (R) : The discharged algae get settled in the reservoirs and cause anaerobic decomposition and other water qualities________?

ABoth A and R are true but R is not a correct explanation of A

BA is true but R is false

CA is false but R is true

DBoth A and R are true and R is the correct explanation of A

Correct answer

D. Both A and R are true and R is the correct explanation of A

Explanation

The correct answer is Both A and R are true and R is the correct explanation of A.

3006Civil EngineeringMedium

A man loans P 187,400 from a bank with interest at 5% compounded annually. He agrees to pay his obligations by paying 8 equal annual payments, the first being due at the end of 10 years. Find the annual payments?

AP 43,489.47

BP 43,263.91

CP 43,600.10

DP 43,763.20

Correct answer

D. P 43,763.20

Explanation

The correct answer is P 43,763.20.

3007Civil EngineeringMedium

The minimum width of a septic tank is taken________?

A75 cm

B80 cm

C90 cm

D70 cm

Correct answer

A. 75 cm

Explanation

The correct answer is 75 cm.

3008Civil EngineeringMedium

The condilion for a lifting machine to be reversible is that its efficiency should be________?

Amore than 50%

Bless than 50%

Cequal to 100%

Dmore than 66.67%

Correct answer

A. more than 50%

Explanation

The correct answer is more than 50%.

3009Civil EngineeringMedium

The permissible diagonal tensile stress in reinforced brick work is________?

Aabout 0.1 N/mm2

Bzero

Cabout 1.0 N/mm2

D0.3 N/mm2 to 0.7 N/mm2

Correct answer

A. about 0.1 N/mm2

Explanation

The correct answer is about 0.1 N/mm2.

3010Civil EngineeringMedium

Which of the following methods of plane table surveying is used to locate the position of an inaccessible point?

Atraversing

Bradiation

Cintersection

Dresection

Correct answer

C. intersection

Explanation

The correct answer is intersection.

Assertion A. : Discharging the effluents from the oxidation ponds just up stream of lakes or reservoirs is undesirable. Reason (R) : The discharged algae get settled in the reservoirs and cause anaerobic decomposition and other water qualities________?

ABoth A and R are true but R is not a correct explanation of A

BA is true but R is false

CA is false but R is true

DBoth A and R are true and R is the correct explanation of A

Correct answer

D. Both A and R are true and R is the correct explanation of A

Explanation

The correct answer is Both A and R are true and R is the correct explanation of A.