Materials-Timber [IES-ESE (Engineering Services) Civil Engineering]: Questions 1 - 3 of 12

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Question 1

Appeared in Year: 2018

Question Assertion-Reason▾

Assertion(Ꭺ)

Air seasoning of structural timber renders it more durable, tough and elastic.

Reason(Ꭱ)

Air seasoning of timber is the most economical and eco-friendly method of treatment when time is not a constraining criterion.

Choices

Choice (4)Response

a.

Ꭺ is false but Ꭱ is true

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Ꭺ is true but Ꭱ is false

d.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

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Question 2

Appeared in Year: 2016

Question MCQ▾

Consider the following statements:

(1) There will be no defects in select grade timbers.

(2) The codal values for strength of grade-II timer without defects may be reduced by 37.5% .

(3) For timber used as columns, the permissible stress in ungraded timbers is adopted with a multiplying factor of 0.50.

(4) In case of wind force and earthquakes, a modification factor of 1.33 is adopted. Which of the above statements are correct?

Choices

Choice (4)Response

a.

2 and 4 only

b.

1 and 3 only

c.

2 and 3 only

d.

1 and 4 only

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Question 3

Appeared in Year: 2017

Question Assertion-Reason▾

Assertion(Ꭺ)

‘Compreg’ timbers have higher specific gravity of up to 1.30 and are stronger than other timbers.

Reason(Ꭱ)

Impregnation of resins and special curing methods are adopted to develop ‘Compreg’ timbers.

Choices

Choice (4)Response

a.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are false

c.

Ꭺ is true but Ꭱ is false

d.

Ꭺ is false but Ꭱ is true

Edit