Engineering Quiz

Which one of these layers is not defined by the OSI model of network communication?

• TCP/IP

• Application

• Physical

• Presentation

• Data Link

1)        What is the closed loop transfer function G(s) of a system with a first order plant and solely proportional control where: K = DC gain K p = proportional constant t = time constant s = Laplace Domain operator

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When does an ISO 10725 accredited laboratory issue a calibration certificate?

• Only when a piece of customer equipment is out of calibration

• Each time the lab checks the calibration of a piece of customer equipment

• Every five years

• When the equipment is brand new and calibrated for the first time

• None of the above

You want to install a new pulsed radar level transmitter in your old liquid storage tank. You know that the tank is constantly being filled and emptied of fluid, which creates large ripples on the surface. In addition, the top is not flat, so you are concerned about misalignment of the antenna relative to the surface of the liquid after you install it. What frequency range should you select for the

•    6 – 11 Gigahertz

•    29 – 85 Gigahertz

   

•   24 – 29 Gigahertz

• 75 – 85 Gigahertz

Which of these items below will decrease the flow rate of fluid flowing through the intravenous tube?

• Decreasing the viscosity of the fluid flowing through the tube.

• Increasing the differential pressure between the pump and the patient's vein back pressure.

• Increasing the flow resistance of the restrictor in place at the injection site.

• Increasing the inner diameter of the tube.

Which one of these semiconductor processes is unique to MEMS construction?

• Deep layer micromachining

• Isotropic wet etching

• Dry Etching

• Targeted micromachining

• Bulk micromachining

Which one of these methods of wire bonding cannot possibly be done using aluminum wire?

• Thermocompression

• Thermosonic

• Wedge

• Ultrasonic

• Ball

Why is aluminum wire used for wire bonding of power electronic circuits?

• Aluminum wire has the correct resistivity

• Copper wire has too low a resistivity

• Gold wire is too soft

• Gold wire is too expensive

• Gold wire has too high a resistivity

Which process can be used to perform both ball bonding and wedge bonding?

• Compression

• Thermosonic

• Thermocompression

• Ultrasonic

• Glass to Metal Sealing

What is the purpose of the faceted mirror in the IR motion detector?

• It prevents visible light from hitting the pyroelectric sensor

• It prevents stray IR rays from hitting the pyroelectric sensor

• It reflects the IR rays into the pyroelectric sensor

• It reflects the IR rays into the piezoelectric sensor