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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 one of the following statement is/are incorrect with respect to fibre intake in animals? 1. Forage dry matter consumption should be near 2% of the body weight. 2. At least 21-25% acid detergent fibre should be in the total ration. 3. At least 28-30% neutral detergent fibre should be in the total ration. 4. Provide at least 3 Kg of fibre a day.
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 glass fibre reinforced epoxy composite is made with 60 wt.% unidirectional continuous glass fibres. The elastic moduli of the glass fibre and the epoxy matrix are 72.5 and 2.4 GPa, respectively. What is the elastic modulus of this composite along the fibre direction, in GPa? The densities of glass fibre and epoxy are 2.58 g/cm3 and 1.14 g/cm3, respectively
19 mm thick fibre panels with thermal conductivity of 0.12 W/m.K are used for false ceiling of an AC room. If the floor area of the room is 17.65 m^2 and the temperature difference across the fibre panel is 15°C, calculate the heat transfer rate.
With reference to Fibre-reinforced plastic, consider the following statement: 1. It is a composite material made of a polymer matrix reinforced with fibres. 2. Bakelite was the first fibre-reinforced plastic. Which of the statements given above is/are correct?
Which of the following is correctly matched? I. Golden fibre revolution - Jute II. Silver fibre revolution - Cotton III. Yellow revolution - Oil-seeds
Some of the physical and functional advantages of optical fiber communication are mentioned here. Select the option which tells about the functional advantages of optical fiber communication. I. The transmission bandwidth of the fiber optic cables is higher than the metal cables. II. Since these cables are di-electric, no spark hazards are present. III. Fibre optic cables last longer than copper cables. IV. The amount of data transmission is higher in fiber optic cables. V. Fibre optic cables are immune to electromagnetic interference. VI. These are not affected by electrical noise.
Which fibre is called the 'Golden Fibre' ?
The Government of India announced linking of Lakshadweep Islands with the mainland through Optical Fibre Cable link. Which of the following statements is/are true? 1. The submarine optical fibre cable link will connect 11 islands of Lakshadweep with Kochi in mainland India. 2. The project will be executed in PPP mode through a joint venture of BSNL and RIL.