The 74LS85 is
A) a 4-bit magnitude comparator. B) a full-adder.
C) a half-adder. D) a 4-bit adder.
A
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Asphalt shingles are generally laid in _______.
A) double coverage with a 2-in. overlap between the top and the bottom shingles. B) single coverage with a 5-in. overlap between the top and the bottom shingles. C) triple coverage with no headlap. D) double coverage with a 2-in. headlap between the top and the bottom shingles. E) none of the above.
Which of the following is the least likely to cause an engine noise?
A) Cracked exhaust manifold B) Vacuum leak C) Carbon on the pistons D) Loose accessory drive belt
During a busy hour, the number of calls per hour for each of the 12 cells of a cellular cluster is 2220, 1900, 4000, 1100, 1000, 1200, 1800, 2100, 2000, 1580, 1800 and 900. Assume that 75% of the car phones in this cluster are used during this period and that one call is made per phone.
(a) Find the number of customers in the system. (b) Assuming the average hold time of 60 seconds, what is the total Erlang value of the system? (c) Find the reuse distance D if R = 5 km.
What could cause a fuel-injected engine to run on (diesel) after the vehicle is turned off?
What will be an ideal response?