72 lines
2.8 KiB
Markdown
72 lines
2.8 KiB
Markdown
G6B – Analog and digital integrated circuits (ICs); microwave ICs (MMICs); display devices; RF connectors; ferrite cores
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- [[G6B01]] (C)
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What determines the performance of a ferrite core at different frequencies? #card
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- A. Its conductivity
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- B. Its thickness
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- C. The composition, or “mix,” of materials used
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- D. The ratio of outer diameter to inner diameter
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- [[G6B02]] (B)
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What is meant by the term MMIC? #card
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- A. Multi-Mode Integrated Circuit
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- B. Monolithic Microwave Integrated Circuit
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- C. Metal Monolayer Integrated Circuit
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- D. Mode Modulated Integrated Circuit
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- [[G6B03]] (A)
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Which of the following is an advantage of CMOS integrated circuits compared to TTL integrated circuits? #card
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- A. Low power consumption
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- B. High power handling capability
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- C. Better suited for RF amplification
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- D. Better suited for power supply regulation
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- [[G6B04]] (C)
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What is a typical upper frequency limit for low SWR operation of 50-ohm BNC connectors? #card
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- A. 50 MHz
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- B. 500 MHz
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- C. 4 GHz
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- D. 40 GHz
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- [[G6B05]] (D)
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What is an advantage of using a ferrite core toroidal inductor? #card
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- A. Large values of inductance may be obtained
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- B. The magnetic properties of the core may be optimized for a specific range of frequencies
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- C. Most of the magnetic field is contained in the core
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- D. All these choices are correct
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- [[G6B06]] (D)
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What kind of device is an integrated circuit operational amplifier? #card
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- A. Digital
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- B. MMIC
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- C. Programmable Logic
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- D. Analog
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- [[G6B07]] (A)
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Which of the following describes a type N connector? #card
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- A. A moisture-resistant RF connector useful to 10 GHz
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- B. A small bayonet connector used for data circuits
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- C. A low noise figure VHF connector
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- D. A nickel plated version of the PL-259
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- [[G6B08]] (D)
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How is an LED biased when emitting light? #card
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- A. In the tunnel-effect region
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- B. At the Zener voltage
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- C. Reverse biased
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- D. Forward biased
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- [[G6B09]] Question Removed (section not renumbered)
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- [[G6B10]] (A)
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How does a ferrite bead or core reduce common-mode RF current on the shield of a coaxial cable? #card
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- A. By creating an impedance in the current’s path
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- B. It converts common-mode current to differential mode current
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- C. By creating an out-of-phase current to cancel the common-mode current
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- D. Ferrites expel magnetic fields
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- [[G6B11]] (B)
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What is an SMA connector? #card
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- A. A type-S to type-M adaptor
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- B. A small threaded connector suitable for signals up to several GHz
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- C. A connector designed for serial multiple access signals
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- D. A type of push-on connector intended for high-voltage applications
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- [[G6B12]] (C)
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Which of these connector types is commonly used for low frequency or dc signal connections to a transceiver? #card
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- A. PL-259
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- B. BNC
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- C. RCA Phono
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- D. Type N
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