Civil Engineering MCQs

Page No. 109

Assertion A : Intervention of undulations in the sea bed reduces the depth of wave at the section. Reason R : No wave can have a height greater than the depth of water through which it passes?


a Both A and R are true and R is correct explanation of A.


bBoth A and R are true but R is not the correct explanation of A.


c A is true but R is false.


d A is false but R is true



As per Stevenson’s empirical formula, the approximate value of the height of the wave in metres is given by__________________?


a 0.34 VF


b0.5 VF


c 1.5 VF


d 3.4 VF


View Answer 0.34 VF

The minimum diameter of turning besin, where ships turn by going ahead and without tug assistance should be___________________?


a L


b1.5 L


c2.0 L


d 4.0 L


View Answer 4.0 L

When a ship floats at its designed water line, the vertical distance from water line to the bottom of the ship is known as________________?


abeam


bdepth


cfreeboard


ddraft


View Answer draft

Assertion A : The ratio of arriving and departing aircrafts influences the airport capacity: Reason R :Landing operation is generally given priority over the taking off operation_________________?


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


b Both A and R are true and R is not the correct explanation of A


cA is true but R is false.


dA is false but R is true



Consider the following statements regarding iCAO recommendation for correction to basic runway length_________________?


aThe basic runway length should be increased at the rate of 7 percent per 300 m rise in elevation above the mean sea level


b The basic runway length after having been corrected for elevation should be further increased at the rate of 1 percent for every 1°C rise in airport reference temperature above the standard atmospheric temperature at that elevation


cThe runway length after having been corrected for elevation and temperature should be further increased at the rate of 20% for every 1 percent of effective gradient


dA and B are correct


View Answer A and B are correct

The length of clear zone for none instrument runway of a small aircraft is________________?


a150 m


b300 m


c600 m


d 750 m


View Answer 300 m

As per ICAO, the minimum basic runway length for A and E type of airport will be________________?


a1500 m and 600 m


b2100 m and 750 m


c1500 m and 750 m


d 2100 m and 600 m


View Answer 2100 m and 600 m

The cruising speed of the aircraft is 500 kmph. If there is a head wind of 50 kmph, then the air speed and ground speed of the aircraft respectively will be_________________?


a450 kmph and 500 kmph


b500 kmph and 450 kmph


c450 kmph and 450 kmph


d500 kmph and 500 kmph


View Answer 450 kmph and 500 kmph

Calm period is the percentage of time during which wind intensity is less than______________?


a4.8 kmph


b6.4 kmph


c8.0 kmph


d9.6 kmph


View Answer 6.4 kmph

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