Test Your EQ
— Issue #151
Each month, Test Your EQ presents
some basic engineering problems for you to test
your Engineering Quotient. What's your EQ?
|
Problem 1—Which
of the following are legitimate parts of a URL?
• protocol
• username
• password
• host
• port
• path
• parameter
• query
• fragment
Answer
Problem 2—Which
parts of a URL are used by the client (browser), and which
parts are used by the server?
Answer
Problem 3—An
analog signal channel carries frequencies from 1 to 11
kHz. What is the minimum frequency at which signals from
this channel must be sampled? What is the sampling interval
T in this case?
Answer
Problem 4—Suppose
that the SNR of this channel is 8:1. What is the maximum
number of bits per second that this channel can theoretically
carry?
Answer
Problem 5—Can
an induction motor (e.g., squirrel-cage type) be used
as a generator?
Answer
Problem 6—What
is "lithotripsy"? What is the shape of the sound reflector
used and why is it shaped that way?
Answer
Problem 7—Why
does this reconstruction of a 20-kHz sine wave sampled
at 44.1 kHz show ripple in its amplitude? 
Answer
Problem 8—Assume
you can make a cigarette out of six cigarette stubs. If
you are given 36 cigarettes, how many cigarettes can you
smoke?
Answer
Published February 2003
Previous
Month
