How much power (roughly) a light-emitting diode can couple into an optical fiber?

The product of either force of couple with the arm of the couple is called

A

Resultant couple

B

Moment of the forces

C

Resulting couple

D

Moment of the couple

'Utilities' in a chemical process plant includes compressed air, steam, water, electrical power, oxygen, acetylene, fuel gases etc. Utility costs for ordinary chemical process plants ranges roughly from __________ percent of the total product cost.

A

1 to 5

B

10 to 20

C

25 to 35

D

35 to 45

At what value of crank angle (roughly), no flow of water from or into the air vessel takes place in case of a double acting reciprocating pump?

A

40° and 140°

B

45° and 60°

C

90° and 80°

D

20° and 120°

Cotton fiber is a -Fiber?

A

Seed fiber

B

leaf fiber

C

best fiber

D

fruit fiber

DWDM is the technology for boosting transmission capacity of optical fiber cable. What is the elaboration of DWDM?

A

Dual Work Dense Multiplexing

B

Double Wavelength Decrease Multiplexing

C

Dense Wavelength Division Multiplexing

D

None of Above

Optical fiber carries data at the speed of light as it is made of

A

UTA (Ultra thin aluminum)

B

Copper

C

Titanium

D

Bundle of reflecting glass

Fiber optical cable is used for?

A

LAN

B

in an office

C

telephone lines data connectivity amoong the branches of offices

D

None of the above

কোনটি অপটিক্যাল ফাইবার ক্যাবলের সবচেয়ে ভিতরের উপাদান? (Which one is the innermost component of the optical fiber cable?

A

ক্ল্যাডিং (Cladding)

B

কোর (Core)

C

জ্যাকেট (Jacket)

D

বাফার (Buffer)

Optical fiber cable - এ তথ্য আদান -প্রদানের মাধ্যমে হলো-

A

বিদ্যুৎ

B

আলাে

C

ইলেক্ট্রো -ম্যাগনেটিক ওয়েভ

D

বিদ্যুৎ ও আলো উভয়ই

Optical Fiber কী?

A

সরু তার

B

ধাতব তার

C

সরু ধাতব তার

D

সরু কাচ তন্তু

How much power (roughly) a light-emitting diode can couple into an optical fiber?

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