MCQs

Civil Engineering MCQs with Explanations

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2551Civil EngineeringMedium

The velocity of jet of water travelling out of opening in a tank filled with water is proportional to________?

Ahead of water (h)

Bh3/1.

Ch2

DV/T

Correct answer

D. V/T

Explanation

The correct answer is V/T.

2552Civil EngineeringMedium

A four wheel trac*or whose operating weight is 12000 kg is pulled along a road having a rising slope of 2% at a uniform speed. Assume grade resistance factor = 10 kg/tonne. The tension in the tow cable is 720 kg. The rolling resistance of the road will be________?

A40 kg/tonne

B50 kg/tonne

C20 kg/tonne

D30 kg/tonne

Correct answer

A. 40 kg/tonne

Explanation

The correct answer is 40 kg/tonne.

2553Civil EngineeringMedium

A college freshman borrowed P2,000 from a bank for his tuition fee and promised to pay the amount for one year. He received only the amount of P1,920 after the bank collected the advance interest of P80.00. What was the rate of discount?

A4.00 %

B4.15 %

C4.25 %

D3.67 %

Correct answer

A. 4.00 %

Explanation

The correct answer is 4.00 %.

2554Civil EngineeringMedium

For a constant value of coefficient of lateral friction, the value of required super-elevation increases with________?

Adecrease in speed and with increase in radius of curve

Bincrease in speed and with decrease in radius of curve

Cincrease in both speed and radius of curve

Ddecrease in both speed and radius of curve

Correct answer

A. decrease in speed and with increase in radius of curve

Explanation

The correct answer is decrease in speed and with increase in radius of curve.

2555Civil EngineeringMedium

If the depletion of oxygen is found to be 5 ppm after incubating a 2.5% solution of sewage sample for 5 days at 21°C, B.O.D. of the sewage is________?

A150 ppm

B100 ppm

C200 ppm

D50 ppm

Correct answer

C. 200 ppm

Explanation

The correct answer is 200 ppm.

2556Civil EngineeringMedium

A fluid in equilibrium can’t sustain________?

Ashear stress

Bcompressive stress

Cbending stress

Dtensile stress

Eall of the above

Correct answer

A. shear stress

Explanation

The correct answer is shear stress.

2557Civil EngineeringMedium

In actual machines________?

Amechanical advantage is equal to velocity ratio

Bmechanical advantage is unity

Cnone of the above

Dmechanical advantage is less than velocity ratio

Emechanical advantage is greater than velocity ratio

Correct answer

D. mechanical advantage is less than velocity ratio

Explanation

The correct answer is mechanical advantage is less than velocity ratio.

2558Civil EngineeringMedium

A liquid compressed in cylinder has a volume of 0.04 m3 at 50 kg/cm2 and a volume of 0.039 m3 at 150 kg/cm2. The bulk modulus of elasticity of liquid is ________?

A400 kg/cm2

B40 x 105 kg/cm2

C4000 kg/cm2

D40 x 106 kg/cm2

Enone of the above

Correct answer

C. 4000 kg/cm2

Explanation

The correct answer is 4000 kg/cm2.

2559Civil EngineeringMedium

The moment of inertia of a triangular section (height h, base b) about its base, is________?

Abh3/12

Bb3h/12

Cb2h/12

Dbh2/12

Correct answer

A. bh3/12

Explanation

The correct answer is bh3/12.

2560Civil EngineeringMedium

The effective length of a battened column is increased by________?

A15%

B20%

C10%

D5%

Correct answer

C. 10%

Explanation

The correct answer is 10%.

For a constant value of coefficient of lateral friction, the value of required super-elevation increases with________?

Adecrease in speed and with increase in radius of curve

Bincrease in speed and with decrease in radius of curve

Cincrease in both speed and radius of curve

Ddecrease in both speed and radius of curve

Correct answer

A. decrease in speed and with increase in radius of curve

Explanation

The correct answer is decrease in speed and with increase in radius of curve.

In actual machines________?

Amechanical advantage is equal to velocity ratio

Bmechanical advantage is unity

Cnone of the above

Dmechanical advantage is less than velocity ratio

Emechanical advantage is greater than velocity ratio

Correct answer

D. mechanical advantage is less than velocity ratio

Explanation

The correct answer is mechanical advantage is less than velocity ratio.