# SC and ST fiber optics cable connectors represent

23 views
SC and ST fiber optics cable connectors represent

(1) Synchronous Channel & Synchronous Terminal (2) Subscriber Channel & Synchronous Terminal (3) Synchronous Channel and Straight Tip (4) Subscriber Channel and Straight Tip

## Related questions

What is max data capacity for optical fiber cable?  (1) 10 mbps (2) 100 mbps (3) 1000 mbps (4) 10000 mbps

An optical fiber cable laid underground has developed a discontinuity at a distance d from the source end. The fault can be located using the instrument  (a) Optical spectrum Analyzer (OSA) (b) Optical Time Domain Reflectometer (OTDR) (c) Optical Power Meter (OPM) (d) Laser Diffractometer (LD)

Main advantage of fiber optic cable over co-axial cable is

In a fiber-optic cable, which phenomenon occurs for signal to propagate along the inner core:  A) Modulation B) Reflection C) Refraction D) All of the above

Fibre optics have maximum segment  A) 500 m B) 200 m C) 100 m D) 2000 m

How many bits are required to represent one nibble ?

Alternating voltages and currents are represented by straight line with an arrow to represent the magnitude and direction. This representation is called

The input to a coherent detector is DSB-SC signal plus noise. The noise at the detector output is:  (1) The in-phase component (2) The quadrature-component (3) Zero (4) The envelope

A generating st ation has a maximum, demand of 20 mW, load factor of 60%, a plant capacity factor of 50% and a plant Use factor of 72%. What is the reserve capacity of the plant, if the plant, while running as per schedule, were fully loaded?

How rating of main switch and cable is selected for Industrial Installation.

In air-core cable the surge voltage travels approximately at the speed of light and a cable of 100m length gives a delay of a. 0.666μsec b. 0.333μsec c. 1.555μsec d. 1μsec

A cable has inductance of 0.22 mH per kilometer and capacitance of 0.202 µF per kilometer. The surge impedance of the cable is (a) 50 Ω (b) 42 Ω (c) 33 Ω (d) 28 Ω

A single core lead sheathed cable with two dielectrics of permittivity 4 and 3, respectively, are subjected to same maximum stress. If the conductor diameter is 1.5 cm, the outer diameter of the first dielectric is (A) 1.125 cm (B) 1.5 cm (C ) 2 cm (D) 8 cm

As we know when there is a joint in optical fiber then there will be some loss then this loss be minimized by  a. Using index matching fluid in the gap b. Making V-grooved splicing c. Both (a)and (b) d. Making carefully polishing

How many watt-hours represent 65 W used for 18 h? A.11.7 Wh B.1,170 Wh C.11,700 Wh D.117,000 Wh

Which of the following voltage is used represent binary '1' in digital circuits .   1.0 V 2. 15 V 3. +5 V 4. 25 V

What does the Poynting vector represent ?  (A) Electromagnetic fields (B) Power density (C) Power (D) Energy

What does the shunt resistance component in the equivalent circuit of an Induction motor represent ? (A) Windage and frictional loss only (B) Core losses only (C) Core, windage and frictional loss (D) Copper losses in rotor

Minimum number of bits required to represent maximum value of given analogue signal with 0.1% accuracy is: a. 8 bits b. 9 bits c. 10 bits d. 12 bits

Which of this represent the half-time constant?  a) 0.693 T b) 0.504 T c) 0.876 T d) 0.450 T

Which of these represent short in a series circuit?  a) Increase in resistance b) Increase in current c) Increase in voltage d) Increase in conductance

Light is confined within the core of a simple optical fiber by:  (1) Refraction. (2) Total internal reflection at the outer edge of the cladding. (3) Total internal reflection at the core cladding boundary. (4) Reflection from the fiber's plastic coating.

In optical fiber, absorption loss peak occurs at wavelength (in nm) of about  A) 80 B) 1050 C) 1380 D) 1600

Modal dispersion problem in optical fiber is less in  A) Step index single mode fiber B) Step index multimode fiber C) Graded index multimode fiber D) Fiber with V number > 20

State functions of ; i) Cable box ii) Guard wire iii) Shackle insulator iv) Stay wire used in service connection

Capacitance grading of cable implies A) grading according to capacitance of cables per kilometer length B) cables using single dielectric in different concentrations C) use of dielectrics of different permeabilities D) capacitance required to be introduced at different length to counter the effect of inductance

A cable has an insulation of relative permittivity 2. If the insulation is replaced by one of relative permittivity 4, then capacitance of the cable (a) is doubled (b) is halved (c) remains unchanged (d) is reduced

Which cable connects the subscriber telephone to the nearest end office in the local loop.  a. Coaxial b. Fiber-optic c. Twisted-pair d. Both (b) and (c)

In a 3-phase extra-high voltage cable, a metallic screen around each core insulation is provided to  (a) Facilitate heat dissipation (b) Give mechanical strength (c) Obtain longitudinal electric stress (d) Obtain radial electric stress

If the insulation resistance of a cable of length 10 km is 1 mega ohm, its insulation resistance for 50 km length will be

The velocity of travelling wave through a cable of relative permittivity 36 is

A single core cable is designed to work for a single phase system with a peak voltage of 220 kV. The maximum permissible stress in the dielectric is not to exceed 20 kV/mm. For economical size, the overall core diameter of the cable is (A) 28.2 mm (B) 26.4 mm (C) 24.4 mm (D) 22.0 mm

When 7/0.029 V.I.R cable is carrying 20 A, a drop of 1 V occurs every 12 m. The voltage drop in a 100 m run of this cable when it is carrying 10 A is nearly  (a) 4.2 V (b) 3.2 V (c) 1.2 V (d) 0.42 V

RJ 45 UTP cable has _____cables. A. 2 Pairs B. 3 Pairs C. 4 Pairs D. 5 Pairs

A megger is to measure insulation resistance of a cable. The cable should be connected to   (a) Battery (b) DC supply (c) AC supply (d) No supply

Minimum distance of underground cable from the foundation of building should be   (a) 100 cm (b) 50 cm (c) 10 cm (d) 5 cm

An Oil-filled cable has a working stress of ___________ kV/mm.  (A) 10 (B) 12 (C) 13 (D) 15

The ‘sheath’ in a cable is used to:  (A) provide strength (B) provide proper in ui ,tion (C) prevent moisture ro entering the cable (D) avoid chances of rust on strands

What is the power factor of a cable of loss angle “ө”?  (A) sin ө (B) cos ө (C) tan ө (D) Independent of ө