In brick jack arch flooring, joists are encased in ___________ mortar, for preventing their rusting from _________ mortar.

Two old friends, Jack and Bill, meet after a long time. Jack: Hey, how are you man?
Bill: Not bad, got married and I have three kids now Jack: Thats awesome. How old are they?
Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date. Jack: Cool But I still dont know.
Bill : My eldest kid just started taking piano lessons. Jack: Oh now I get it.
How old are Bills kids ?

A

3, 3, 8

B

2, 6, 6

C

1, 6, 12

D

1, 8, 9

The following question, there are three statements I, II and III. Read the question carefully and mark your answer according to which statements(s) is/are sufficient to the answer the question. Find the total cost of flooring a room? Statement I: The length of the room is 70% more than the breadth of the room Statement II: The cost of flooring some other room whose length is twice the length of the given room and breadth is one third of the breadth of the given room is Rs.3000 less than the cost of flooring of given room Statement III: The perimeter of the room is 90 m and cost of flooring is Rs. 20 per m2

A

I and III

B

I and III or II

C

I and II

D

Only III

E

None of these

Consider the following statements related to composite mortar: 1. Addition of lime to cement mortar improves its workability 2. Composite mortar is obtained by adding 10% by weight of cement and mixing with water. 3. Composite mortar is not preferred in tall buildings 4. Mechanical grinding is essential for developing composite mortar. Which of the above statements are true in this case?

A

1, 2 and 3 only

B

1, 3 and 4 only

C

2, 3 and 4 only

D

1, 2, 3 and 4

Consider the following related to sand in mortars: 1. It increases the volume of the mortar mix. 2. It increase the strength of masonry. 3. The cost of the mortars is reduced. 4. Shrinkage of the mortar is almost prevented. 5. Surkhi can replace sand in cement mortar used in plastering and this modified mortar is more durable. Which of the above are relevant to ‘sand’ in mortar?

A

1, 2, 4 and 5

B

1, 3 and 4 only

C

3, 4 and 5 only

D

2, 3 and 4 only

Consider the following statements in respect of arched construction made of voussoirs: 1. The superimposed load is transferred to the sidewalls only by the strength of cohesion of the mortar between the voussoirs. 2. The arch may fail under crushing when the compressive stress or thrust in it exceeds the safe crushing strength of the voussoir material. 3. Every element in the arch is subjected to compression only. 4. Failure of the arch due to the sliding of any voussoir past the adjacent one due to transverse shear can be avoided by reducing the height of the voussoirs. Which of the above statements are correct?

A

1 and 4 only

B

1 and 3 only

C

2 and 4 only

D

2 and 3 only

_____________ flooring is known as the composition flooring or jointless flooring.

A

Moorum

B

Rubber

C

Magnesite

D

Stone

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

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

B

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

C

A is true but R is false

D

A is false but R is true

Consider the following statements:
(i) Masonry in rich cement mortar though having good strength with high shrinkage is much liable for surface cracks.
(ii) Lime mortar possesses poor workability and poor water retentivity and also suffers high shrinkage.
(iii) Masonry in lime mortar has better resistance against rain penetration and is less liable to crack when compared to masonry in cement mortar.
Which of these statements are correct?

A

(i), (ii) and (iii)

B

(i) and (ii)

C

(ii) and (iii)

D

(i) and (iii)

Consider the following statements: 1. Bricks in masonry arc bound by mortar. 2. Mortars make bricks damp. proof. 3. Strength of brick in masonry is improved by plastering. 4. Addition of lime improves workability. 5. Marine constructions need sulphate-resistant cement mortar. Which of the above statements are relevant for 'cement mortar?

A

1, 2 and 3

B

2, 3 and 4

C

1, 4 and 5

D

3, 4 and 5

Arch in cement concrete jack flooring is made of __________ cement concrete.

A

1:2:4

B

1:3:4

C

1:2:3

D

2:3:4

In brick jack arch flooring, joists are encased in ___ mortar, for preventing their rusting from _ mortar.

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