Which of the following statements are correct 1. Knots in a tree affect the continuity of fibers. 2. Nail knots do not influence the strength of timber. 3. Druxiness of wood is not a defect 4. Tall trees with twisted fibers given good timber for poles

1.  1, 2 and 3 and 4

2.  1, 2 and 4 only

3.  1, 2 and 3 only

4.  2, 3 and 4 only

View Answer  
4
Correct Answer :

1, 2 and 4 only


Explanation :
No Explanation available for this question

Excrescences in wood are: 1. Defects found in trees 2. Formed due to injuries inflicted on trees when they are growing 3. Defects which render wood suitable as firewood only

1.  1, 2 and 3

2.  1 and 2 only

3.  1 and 3 only

4.  2 and 3 only

View Answer  
4
Correct Answer :

1 and 2 only


Explanation :
No Explanation available for this question

What treatment is adopted for making timber fire-resistant

1.  ASCU treatment

2.  Abel’s process

3.  Creosoting

4.  Tarring

View Answer  
4
Correct Answer :

Abel’s process


Explanation :
No Explanation available for this question

Deterioration of structure of timber due to dry rot is: 1. Caused by fungi 2. Due to dry-spell after heavy rains 3. Due to attack of termites 4. Indicated by surface stripes on scantlings

1.  1 and 2

2.  3 and 4

3.  2 and 3

4.  1 and 4

View Answer  
4
Correct Answer :

1 and 2


Explanation :
No Explanation available for this question

Alternate wetting and drying of timber: 1. Results in shrinkage and swelling 2. Brings about wet rot onset 3. Increases the durability 4. Causes transmission of spores from germination

1.  1, 2, 3 and 4

2.  1, 2 and 4 only

3.  1, 2 and 3 only

4.  2, 3 and 4 only

View Answer  
4
Correct Answer :

1, 2 and 4 only


Explanation :
No Explanation available for this question

As per I.S classification, the minimum compressive strength of a first class brick should be

1.  75 kg/cm2

2.  100 kg/cm2

3.  125 kg/cm2

4.  150 kg/cm2

View Answer  
4
Correct Answer :

100 kg/cm2


Explanation :
No Explanation available for this question

When provided with alternating courses of (a) all headers and (b) all stretchers, the front elevation of such brick masonry is designated as

1.  English bond

2.  Single Flemish bond

3.  Double Flemish bond

4.  Rat-trap bond

View Answer  
4
Correct Answer :

English bond


Explanation :
No Explanation available for this question

I.S Code specifies that the compressive strength of brick shall be determined by keeping the brick: 1. On edge 2. On bed 3. After soaking in water for 2hrs 4. After soaking in water for 24hrs

1.  1 and 2

2.  2 and 3

3.  3 and 4

4.  2 and 4

View Answer  
4
Correct Answer :

2 and 4


Explanation :
No Explanation available for this question

Soundness test of cement is carried out to determine its

1.  Alumina content

2.  Iron oxide content

3.  Free lime content

4.  Durability under sea water

View Answer  
4
Correct Answer :

Free lime content


Explanation :
No Explanation available for this question

The objectives of producing cement include: 1. Incorporating industrial wastes 2. Increasing free lime 3. Increasing fineness 4. Saving energy needed in the process

1.  1, 2, 3 and 4

2.  1, 3 and 4 only

3.  1, 2 and 4 only

4.  2, 3 and 4 only

View Answer  
4
Correct Answer :

1, 3 and 4 only


Explanation :
No Explanation available for this question
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