What does OMB stand for?
A. Optical media board
B. Organization of medical biologist
C. Optical medium board
D. Optimum main board

1 Answer

Answer :

A. Optical media board

Related questions

Description : Which of the following contributes to the broadening of laser emission bandwidth? a. Doppler shift of moving atoms and molecules b. Amplification within the laser medium c. Coherence of the laser light d. Optical pumping of the laser transition

Last Answer : a. Doppler shift of moving atoms and molecules

Description : The core of the optical fiber has ______. A. A medium index of refraction B. A lower index of refraction than the cladding C. A lower index of refraction than air D. A higher index of refraction than the cladding

Last Answer : D. A higher index of refraction than the cladding

Description : What is the role of the Office of Management and Budget (OMB)?

Last Answer : to manage the federal government’s budget

Description : A radio communications link is to be established via the ionosphere. The maximum virtual height of the layer is 100 km at the midpoint of the path and the critical frequency is 2 MHz. The distance between stations is 600 ... optimum working frequency? A. 6.32 MHz B. 2.1 MHz C. 5.4 MHz D. 1.8 MHz

Last Answer : C. 5.4 MHz

Description : What is the optimum reverberation time at 500 Hz for a cinema? A. 0.8 – 1.2 sec. B. 0.9 – 1.3 sec. C. 0.6 – 0.8 sec. D. 0.45 – 0.55 sec.

Last Answer : A. 0.8 – 1.2 sec.

Description : What is the optimum volume per person of rooms for speech? A. 2.8 B. 3.1 C. 4.2 D. 5.1

Last Answer : A. 2.8

Description : To obtain the most reliable sky wave propagation the ____ should be used. A. Lowest useable frequency (LUF). B. Maximum useable frequency (MUF). C. Optimum useable frequency (OUF). D. Critical frequency

Last Answer : C. Optimum useable frequency (OUF).

Description : For a cinema, the optimum volume per person required is A. 3.1 B. 2.8 C. 7.1 D. 4.2

Last Answer : A. 3.1

Description : What is the optimum reverberation time at 500 to 1000 Hz of an auditorium? A. 0.9 to 1.1 s B. 1.4 to 1.6 s C. 1.5 to 1.6 s D. 1.6 to 1.8 s

Last Answer : D. 1.6 to 1.8 s

Description : The main benefit of light-wave communications over microwaves or any other communications media is a. Lower cost b. Better security c. Wider bandwidth d. Freedom from interference

Last Answer : c. Wider bandwidth

Description : Which of the following is not part of the optical spectrum? a. Infrafed b. Ultraviolet c. Visible color d. X-rays

Last Answer : d. X-rays

Description : Which of the following is used as an optical receiver in fiber optics communications a. APD b. Tunnel diode c. Laser diode d. LED

Last Answer : a. APD

Description : Which of the following is used as an optical transmitter on the Fiber Optical Communications? a. APD b. LSA diode c. PIN diode d. LED

Last Answer : d. LED

Description : Is a non-coherent light source foe optical communications system. a. ILD b. LED c. APD d. PIN Diode

Last Answer : b. LED

Description : What is a specific path the light takes in an optical fiber corresponding to a certain angle and number of reflection a. Mode b. Grade c. Numerical Aperture d. Dispersion

Last Answer : a. Mode

Description : The bandwidth of optical fiber a. 900MHz b. 900PHz c. 900THz d. 900EHz

Last Answer : c. 900THz

Description : Is the different angle of entry of light into an optical fiber when the diameter of the core is many times the wavelength of the light transmitted. a. Acceptance angle b. Modes c. Sensors d. Aperture

Last Answer : b. Modes

Description : The core of an optical fiber has a a. Lower refracted index than air b. Lower refractive index than the cladding c. Higher refractive index than the cladding d. Similar refractive index with the cladding

Last Answer : c. Higher refractive index than the cladding

Description : What optical source radiates light uniformly in all directions? A. Isotropic source B. Lambertian source C. Voltage source D. Ideal source

Last Answer : B. Lambertian source

Description : What is the insertion loss of connector type splices for a single mode optical fiber? A. 0.51 dB B. 0.49 dB C. 0.31 dB D. 0.38 db

Last Answer : D. 0.38 db

Description : One of the following is referred to as a major component of an optical time domain reflectometer A. Pulse generator and vertical plate B. Laser and horizontal plate C. Pulse generator laser D. Vertical and horizontal plate

Last Answer : C. Pulse generator laser

Description : One of the following stands for SONET acronym in telecommunication A. System optical network B. Simple operation network C. Synchronous optical network D. System operating network

Last Answer : C. Synchronous optical network

Description : What law does a light traveling in air optical fiber follow? A. Millman B. Snell’s C. Maxwell D. Huygen

Last Answer : B. Snell’s

Description : A device that reduces the intensity of light in fiber optics communication systems. A. Reducer B. Quality factor C. Optical attenuator D. Compressor

Last Answer : C. Optical attenuator

Description : A non-coherent light source for optical communications system. A. PIN Diode B. ILD C. APD D. LED

Last Answer : D. LED

Description : The different angles of entry of light into an optical fiber when the diameter of the core is many times the wavelength of the light transmitter is known as ________. A. refraction B. sensor C. mode D. emitter

Last Answer : C. mode

Description : The objective of energy management is ____ A. To achieve and maintain optimum energy procurement and utilization throughout the organization B. To minimize the energy cost without affecting production and quality C. To minimize the environmental effects D. All of the above

Last Answer : All of the above

Description : The minimum angle of incidence at which the light ray may strike the interface of two media and result in an angle of refraction of 90 degrees or greater. ∙ A. optimum angle ∙ B. angle of refraction ∙ C. refracted angle ∙ D. critical angle

Last Answer : D. critical angle

Description : The key electronic component in a communications satellite is the A. telemetry equipment B. on-board computer C. command and control system D. transponder

Last Answer : D. transponder

Description : Which conference in the ITU-structure does the telecommunication standardization bureau report? A. World telecommunication standardization conference B. ITU-development sector C. Radio regulation board D. The secretary general

Last Answer : A. World telecommunication standardization conference

Description : When can a corporation or association incorporated under the Philippine laws and with foreign investors be granted radio station license? A. When 60% of the capital is owned by Filipino citizens B. ... of the board is a Filipino D. When the president of the corporation/association is a Filipino

Last Answer : A. When 60% of the capital is owned by Filipino citizens

Description : Which of the following is the basic component of a communications satellite receiver? A. On-board computer B. Reflector C. Telemetry D. Transponder

Last Answer : D. Transponder

Description : According to RA 9292, how many days after the board exam the results will be released? A. Within 5 days B. Within 15 days C. Within 20 days D. Within 3 days

Last Answer : B. Within 15 days

Description : How many nominees per position of the Electronics Engineering Board are nominated by IECEP to PRC? A. 3 B. 5 C. 4 D. 6

Last Answer : B. 5

Description : Who will appoint the chairman and 2 members of the board of Electronics Engineering? A. The Senate President B. The President C. The Supreme Court D. The Commission on Appointment

Last Answer : B. The President

Description : One of the following is not among the major components required on board ship under the global maritime distress and safety system. A. On board radio facilities B. Radio operator telegraphy onboard C. Shore base facilities D. Radio personnel on board

Last Answer : B. Radio operator telegraphy onboard

Description : ECE Board Exam April 1997 Sound intensity is given as A. df/dP B. dE/dp C. dA/dP D. dP/dA

Last Answer : D. dP/dA

Description : Background noise is the same as the C. Thermal noise D. Gaussian noise 24. ECE Board Ex

Last Answer : A. Impulse noise

Description : ECE Board Exam November 1996 What is the applied power if a thermal RF wattmeter is connected to a transmitter through a variable attenuator? The wattmeter reads 84 mW when 15 dB of attenuation is used. A. 4.656 watts B. 2.656 watts C. 3.656 watts D. 2.856 watts

Last Answer : B. 2.656 watts

Description : ECE Board Exam November 1996 What is the applied power if a thermal RF wattmeter is connected to a transmitter through a variable attenuator? The wattmeter reads 84 mW when 15 dB of attenuation is used. A. 4.656 watts B. 2.656 watts C. 3.656 watts D. 2.856 watts

Last Answer : A. PAM

Description : ECE Board Exam November 1996 The loss in signal power as light travels down a fiber is A. attenuation B. propagation C. absorption D. scattering

Last Answer : A. attenuation

Description : ECE Board Exam March 1996 TACAN is a navigational aid providing ___________. A. bearing and distance indication B. speed and height indication C. bearing and weather information D. instrument-landing glide paths

Last Answer : A. bearing and distance indication

Description : ECE Board Exam March 1996 What is the purpose of the receiver's squelch circuit? A. To overcome fluctuations in the level the RF signal arriving at the receiver antenna B. To prevent ... signals D. To prevent amplified noise from reaching the loudspeaker during the absence of an incoming signal

Last Answer : D. To prevent amplified noise from reaching the loudspeaker during the absence of an incoming signal

Description : ECE Board Exam March 1996 Which of the following pulse modulation systems is analog? A. Delta B. Differential PCM C. PWM D. PCM

Last Answer : C. PWM

Description : ECE Board Exam March 1996 A type of an underground antenna is a/an __________ antenna. A. Hertz B. isotropic C. parabolic D. Marconi

Last Answer : A. Hertz

Description : ECE Board Exam March 1996 What is the reference tone level for dBm? A. -82 dBm B. -85 dBm C. -67 dBm D. -90 dBm

Last Answer : D. -90 dBm

Description : ECE Board Exam March 1996 Communications code is ____________. A. eight bits per character B. agreed upon in advance between sender and receiver C. the same in all modern computers D. either seven or eight bits per character

Last Answer : B. agreed upon in advance between sender and receiver

Description : ECE Board Exam March 1996 What is the transmission rate of a system for transmitting the output of a microcomputer to a line printer operating at a speed of 30 lines/minute? Assume that the line printer has 8 bits ... and prints out 80 characters/line. A. 800 bps B. 400 bps C. 320 bps D. 640 bps

Last Answer : C. 320 bps

Description : ECE Board Exam March 1996 The method of generating FM used by broadcasting station is A. direct B. all of these C. indirect D. insertion

Last Answer : C. indirect