AIRPORT ENGINEERING QUIZ

The bending stress in a wall or column subjected to effective vertical load need not be considered, if the eccentricity ratio is

Less than or equal to 1/6

Less than or equal to 1/12

More than 1/24

Less than or equal to 1/24

TRUE ANSWER : ?
YOUR ANSWER : ?

Assertion A : For eccentricity ratio exceeding 1/6, effective thickness of masonry will get reduced.<br/>Reason R : For eccentricity ratio exceeding 1/6, there will be tension on one side of the member.<br/>Select your answer according to the codes give below:

A is false but R is true

A is true but R is false

Both A and R is true and R is the correct explanation of A

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

TRUE ANSWER : ?
YOUR ANSWER : ?

A 200 mm thick wall made of modular bricks is 5 m long between cross walls and 3.8 m clear height between RCC slabs at top and bottom. The slenderness ratio of the wall is

25

19

15

20

TRUE ANSWER : ?
YOUR ANSWER : ?

Consider the following statements: The use of relatively weak mortar 1. Will accommodate movements due to loads and, cracking if any, and will be distributed as thin hair cracks which are less noticeable or harmful. 2. Will result in reduction of stresses due to differential expansion of masonry units.

2 alone is correct

Neither 1 nor 2 is correct

1 alone is correct

Both 1 and 2 are correct

TRUE ANSWER : ?
YOUR ANSWER : ?

Rich cement mortars are more liable to cracking as compared to lean mortars because rich mortars have

Less strength

Both (A) and (B)

High shrinkage

None of above

TRUE ANSWER : ?
YOUR ANSWER : ?

In a cavity wall, both leaves of which are load bearing, the effective thickness is taken as

Actual thickness of the stronger leaf

Sum of thickness of both leaves

Larger of (B) and (C)

Two-third of the sum of thickness of both the leaves

TRUE ANSWER : ?
YOUR ANSWER : ?

For designing masonry components of a structure, seismic forces provision in the design calculation is not necessary for buildings constructed in

Zone I and II

Zone I, II, III and IV

Zone I, II and III

Zone I only

TRUE ANSWER : ?
YOUR ANSWER : ?

Assertion A : For identical strength, a composite cement-lime mortar is preferred over cement mortar.Reason R : Composite cement-lime mortar has higher drying shrinkage than cement mortar.Select your answer based on the codes given below. Codes:

A is true but R is false

Both A and R is true but R is not a correct explanation of A

Both A and R is true and R is the correct explanation of A

A is false but R is true

TRUE ANSWER : ?
YOUR ANSWER : ?

Assertion A : Limiting value of slenderness ratio for a column is less than that of a wall.Reason R : A column can buckle around either of the two horizontal axes while a wall can buckle around only one axis.Select your answer according to the codes given below:

A is true but R is false

Both A and R is true but R is not the correct explanation of A

Both A and R is true and R is the correct explanation of A

A is false but R is true

TRUE ANSWER : ?
YOUR ANSWER : ?

Assertion A : Lime based mortars give higher ratio of brickwork strength to mortar strength as compared to non-lime mortar.Reason R : Lime based mortars have lower bond strength as compared to non-lime mortars.Select your answer according to the codes given below:

A is false but R is true

Both A and R is true but R is not the correct explanation of A

Both A and R is true and R is the correct explanation of A

A is true but R is false

TRUE ANSWER : ?
YOUR ANSWER : ?