The disease of dry rot in timber is caused by (A) Lack of ventilation (B) Alternate wet and dry conditions (C) Complete submergence in water (D) None of the above

The disease of dry rot in timber is caused by
(A) Lack of ventilation
(B) Alternate wet and dry conditions
(C) Complete submergence in water
(D) None of the above
by

1 Answer

Answer :

Answer: Option A
by

Related questions

Consider the following statements: 1. Dry rot in sap wood is caused by fungal attack 2. Brown rot in coniferous woods is a result of fungal attack 3. Alternate wetting and drying of unseasoned timber causes ‘powdery’ form of decay in wood. Which of these statements are correct? (a) 1, 2 and 3 b)1 and 2 only c)2 and 3 only d)1 and 3 only

Description : Consider the following statements: 1. Dry rot in sap wood is caused by fungal attack 2. Brown rot in coniferous woods is a result of fungal attack 3. Alternate wetting and drying of unseasoned timber causes powdery' form of decay in ... ? (a) 1, 2 and 3 b)1 and 2 only c)2 and 3 only d)1 and 3 only

Last Answer : (a) 1, 2 and 3

Select the correct statement. (A) Unit weight of dry soil is greater than unit weight of wet soil (B) For dry soils, dry unit weight is less than total unit weight (C) Unit weight of soil increases due to submergence in water (D) Unit weight of soil decreases due to submergence in water

Description : Select the correct statement. (A) Unit weight of dry soil is greater than unit weight of wet soil (B) For dry soils, dry unit weight is less than total unit weight (C) Unit weight of soil increases due to submergence in water (D) Unit weight of soil decreases due to submergence in water

Last Answer : Answer: Option D

Dry rot (A) Cracks the timber (B) Reduces the strength of timber (C) Reduces the timber to powder (D) Spoils the appearance of timber

Description : Dry rot (A) Cracks the timber (B) Reduces the strength of timber (C) Reduces the timber to powder (D) Spoils the appearance of timber

Last Answer : Answer: Option C

Due to attack of dry rot, the timber (A) Cracks (B) Shrinks (C) Reduces to powder (D) None of the

Description : Due to attack of dry rot, the timber (A) Cracks (B) Shrinks (C) Reduces to powder (D) None of these

Last Answer : Answer: Option C

Coefficient of discharge of an ogee spillway (A) Depends on depth of approach and upstream slope (B) Depends on downstream apron interference and downstream submergence (C) Remains constant (D) Both (A) and (B

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Which is true for Low-Latitude Climates? w) have a winter season x) lack a winter season y) are wet throughout the year z) are dry throughout the year

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Knots in timber are (A) Defects caused by crushing fibres (B) Splits radiating from the centre (C) Speckled strains (D) Signs of branches cut off

Description : Knots in timber are (A) Defects caused by crushing fibres (B) Splits radiating from the centre (C) Speckled strains (D) Signs of branches cut off

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Red rot disease is caused by

Description : Red rot disease is caused by

Last Answer : Ans. Colletrotricum falcatum

Which of the following plant disease/s is/are caused by fungi? 1. Brown rot of potatoes 2. Foot rot of paddy 3. Heart rot of beets 4. Tikka disease of peanut Select the correct answer using codes given below: (a) Only 1 (b) 1 and 3 (c) 2 and 4 (d) Only 4

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Last Answer : Ans:(c)

Which of the following plant diseases are caused by viruses? 1. Aster yellows 2. Foot rot of paddy 3. Leaf curl of tobacco 4. Little leaf of Sweet potato Which of the above disease/s is/are caused by the bacteria? (a) 1 and 3 (b) 1, 2, and 4 (c) 2 and 4 (d) 3 and 4

Description : Which of the following plant diseases are caused by viruses? 1. Aster yellows 2. Foot rot of paddy 3. Leaf curl of tobacco 4. Little leaf of Sweet potato Which of the above disease/s is/are caused by the bacteria? (a) 1 and 3 (b) 1, 2, and 4 (c) 2 and 4 (d) 3 and 4

Last Answer : Ans:(a)

One of the greatest famines of the nineteenth century suffered by the Irish people which led to over 1 million deaths due to starvation was caused by a fungal infection of the potato crop. The disease it caused was (a) early blight of potatoes (b) heart rot of potatoes (c) late blight of potatoes (d) potato mosaic

Description : One of the greatest famines of the nineteenth century suffered by the Irish people which led to over 1 million deaths due to starvation was caused by a fungal infection of the potato crop. The disease it ... blight of potatoes (b) heart rot of potatoes (c) late blight of potatoes (d) potato mosaic

Last Answer : Ans:(c)

Consider the following plant diseases: 1. Brown rot of potatoes. 2. Citrus dieback 3. Tikka disease of peanut 4. Tundu disease of wheat Which of the above disease/s is/are caused by the bacteria? (a) 1 and 3 (b) 1 and 4 (c) Only 2 (d) 2 and 4

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Last Answer : Ans:(b)

Red rot is a disease caused to which of the following plant? (1) Paddy (2) Sugarcane (3) Mustard (4) Wheat

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Last Answer : (2) Sugarcane Explanation: Red rot is one of the oldest known diseases of sugarcane that is caused by the fungus Colletotrichum falcatum (Glomerella tucumanensis).

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Last Answer : (c) Ring spot

Tundu disease (yellow ear rot) of wheat caused by Clavibacter tritici is usually associated with (a) Heterodera evenae (b) Anguina tritici (c) Meloidogyne incognita (d) Pratylenchulus sp

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Last Answer : (b) Anguina tritici

Yellow ear rot (Tundu ) disease of wheat is caused by a. Anguina tritici b. Calvibacter tritici c. both a & b d. Physiological disorder

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Pick up the most favourable condition for the rapid growth of fungus for dry rot from the following: (A) Absence of sun light (B) Dampness (C) Presence of sap (D) All the above

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Both hydrarch and xerarch successions lead to (a) medium water conditions (b) xeric conditions (c) highly dry conditions (d) excessive wet conditions.

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Last Answer : ANSWER: W -- PLUTONIUM-238

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Which coastline formed by the submergence of mountain ridges running parallel to the coast?

Description : Which coastline formed by the submergence of mountain ridges running parallel to the coast?

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Which coastline formed by the submergence of mountain ridges running parallel to the coast?

Description : Which coastline formed by the submergence of mountain ridges running parallel to the coast?

Last Answer : Dalmation coast

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What is the disease caused by lack of Vitamin-A ?

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Pick up the correct statement from the following: (A) If ports are closed, the dry intake towers will not have any water (B) Even if ports are closed, the wet intake tower will have water filled up to reservoir level (C) No buoyant force acts on wet intake towers (D) All the above

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Last Answer : (D) All the above 

The capillary rise of water (A) Depends upon the force responsible (B) Increases as the size of the soil particles increases (C) Decreases as the size of the soil particles decreases (D) Is less in wet soil than in dry soil

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For the construction of water bound macadam roads, the correct sequence of operations after spreading coarse aggregates is (A) Dry rolling, wet rolling, application of screening and application of filler (B) Dry rolling, application of filler, wet rolling and application of screening (C) Dry rolling, application of screening, wet rolling and application of filler (D) Dry rolling, application of screening, application of filler and wet rolling

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Last Answer : Answer: Option C

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Last Answer : (b) Moist aggregate

Seasoning of timber is done (A) To make it water proof (B) To paint its surface (C) To increase its temperature (D) To remove water

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Last Answer : (D) Possess high coefficient of internal coefficient

Pick up the incorrect statement from the following: (A) Compaction has no effect on the structure of a soil (B) Permeability decreases with increase in the dry density of a compacted soil (C) A wet side compacted soil is more compressible than a dry side compacted soil (D) Dry side compaction soils swell more when given access to moisture

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Last Answer : (A) Compaction has no effect on the structure of a soil

For better strength and stability, the fine grained soils and coarse grained soils are compacted respectively as (A) Dry of OMC and wet of OMC (B) Wet of OMC and dry of OMC (C) Wet of OMC and wet of OMC (D) Dry of OMC and dry of OMC where OMC is optimum moisture content

Description : For better strength and stability, the fine grained soils and coarse grained soils are compacted respectively as (A) Dry of OMC and wet of OMC (B) Wet of OMC and dry of OMC (C) Wet of OMC and wet of OMC (D) Dry of OMC and dry of OMC where OMC is optimum moisture content

Last Answer : Answer: Option B