Low quality of jute fibre is attributed to 1. Discoloration of fibre 2. Very short fibre strands 3. Reduction of cellulose in fibre 4. Reduction of cell wall strength over-retting decreases the fibre quality due to Select the correct answer:

Which of the following statements is/are correct?
1. Jute and Hemp are bast fibres and have to be obtained after retting.
2. Hemp and jute are coarser fibres and are mostly used for making gunny bags and ropes.
3. Jute fibre is weak in dry state.
4. In moist environment, jute takes up 23% moisture. In dry environment it has 6% moisture.
Select the correct answer

A

1 and 2

B

3 and 4

C

1, 2 and 3

D

All of these

A continuous process is set up for treatment of wastewater. Each day, 103 kg cellulose and 105 kg bacteria enter in the feed stream, while 102 kg cellulose and 1.5 x 102 kg bacteria leave in the effluent. The rate of cellulose digestion by the bacteria is 8 x 102 kg d-1. The rate of bacterial growth is 4x 102 kg d-l; the rate of cell death by lysis is 6 x 102 kg d-1. Write balances for cellulose and bacteria in the system.

A

1× 103 kg, 9 × 103 kg

B

1× 102 kg, 9.965 × 104 kg

C

1× 103 kg, 9.964 × 104 kg

D

1× 102 kg, 9 × 103 kg

Consider the following statements and choose the correct answer:
1. At low temperature, the viscosity of water increases
2. Low temperature retards the growth of the roots
3. At low temperature, viscosity of protoplasm and cell wall decreases
4. Low temperature increases the metabolic activities of the root cells

A

Only 1 and 2 are true

B

Only 1, 2 and 3 are true

C

Only 3 is true

D

Only 3 and 4 are true

Which of the following statements is/are correct?
1. Jute industry in West Bengal is flourishing because jute is grown in plenty there.
2. Well-developed roadways help in the transportation of jute farms to the mills.

A

Only 1

B

Only 2

C

Both 1 and 2

D

None of above

I. All the offices on the 9th floor have wall-to-wall carpeting. II. No wall-to-wall carpeting is pink. III.None of the offices on the 9th floor has pink wall-to-wall carpeting. If the first two statements are true, the third statement is

A

true

B

false

C

uncertain

D

none

If the first two statements are true, the third statement is :
I. All the offices on the 9th floor have wall-to-wall carpeting.
II. No wall-to-wall carpeting is pink.
III. None of the offices on the 9th floor has pink wall-to-wall carpeting.

A

true

B

false

C

[C. uncertain

In long wall-short wall method, the wall along the length of the room is said to be the short wall.

A

True

B

False

The main reinforcement in the toe of a T-shaped R.C. retaining wall is provided on
i) top face parallel to the wall
ii) top face perpendicular to the wall
iii) bottom face parallel to the wall
iv) bottom face perpendicular to the wall
The correct answer is

A

Only (ii) is correct

B

(i) and (ii) are correct

C

(iii) and (iv) are correct

D

Only (iv) is correct

Consider the following statements.
1. Fibre optics is based on the principle of total internal reflection.
2. In an optical fibre communication system, power consumption is extremely low
3. Optical fibre communications are free from radio frequency interference.
4. In India, Reliance Group of Industries is engaged in the manufacture of the optical fibre.
Which of these statements are correct?

A

Only 1, 2 and 3

B

Only 1, 2 and 4

C

Only 1, 3 and 4

D

Only 2, 3 and 4

In the Money market which of the following statement's is/are incorrect?
1. The call money market deals in short-term finance repayable on demand, with a maturity period varying from one day to 14 days.
2. Treasury bills are instruments of short-term borrowing by the Government of India, issued as promissory notes under discount.
3. A reduction in the repo rate helps banks to get money at a cheaper rate.
4. Money market mutual funds invest money in specifically, high-quality and very short maturity based money market instruments.

A

1 and 3

B

2 only

C

4 only

D

None of the above