RS Quiz - Apr 22

The function of a washer is to

• Provide cushioning effect

• Provide smooth bearing surface

• Absorb shocks and vibration

• Provide smooth surface in place of rough surface

What is the function of gasket?

• A toroidal or 'doughnut shaped' seal used as a mechanical seal in every machine requiring fluid containment.

• Static (stationary) seals between two flat surfaces

• Moving seals between two flat surface

• All of the above

In optical fiber communications, the signal source is _____ waves.

• Light

• Infrared

• Radio

• Very low frequency

An operating environment has many high-voltage devices. What would be the best medium of transmission?

• The atmosphere

• Twisted-pair cable

• Optical fiber

• Coaxial cable

What does the “blind area” of pulse modulated radars mean?

• Blind area is when target is out the range of the antenna while it is still firing its transmitting wave.

• Blind area is when target is within the range of the antenna and not firing transmitting wave.

• Blind area is when target is out the range of the antenna and not firing transmitting wave.

• Blind area is when target is within the range of the antenna while it is still firing its transmitting wave.

What are the two main types of radar system categories?

• Detection and Ranging radar

• Military and Air Traffic Control radar

• Air Navigation and Ship Navigation radar

• Pulse Modulation and Continuous Wave radar

The target detected by a Pulse Radar System can be indicated on a display as ___?

• Bright spot or Blip

• Blip or Square pulse

• Square pulse or Bright spot

• None of the above

The frequency of microwave signals range from

• 1GHz to 30GHz

• 1GHz to 300GHz

• 1GHz to 100GHz

• 100GHz to 300GHz

The FMCW radar altimeter determines altitude by measuring the

• Doppler Shift Frequency

• Difference between the transmitter frequency and received echo frequency

• Atmospheric Air Pressure

• Time difference between the transmitted pulse and echo pulse

What is the purpose of Safety Data Sheet?

• Provides health and safety information about products, substances or chemicals that are classified as hazardous substances or dangerous goods.

• Provides health information about products, substances or chemicals that are classified as hazardous substances or dangerous goods.

• Provides safety information about products, substances or chemicals that are classified as hazardous substances or dangerous goods.

• Provides health and safety information about products, substances or chemicals that are not classified as hazardous substances or dangerous goods.