The purpose of Block 4 in Figure 16-2 is to ________
A) maintain a constant output current when the load current changes
B) make sure that the fuse will not blow
C) adjust the output voltage to the correct ac value
D) keep the dc output voltage constant as the load changes
D
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Which of the following results when the blower is arranged to blow air into the combustion chamber?
a. induced draft b. reduced draft c. forced draft d. primary air
Animal health technologists work side by side with _____
a. entomologists c. veterinarians b. microbiologists d. ecologists
This is an example of a sensing operation during the process of work-handling in a robot manipulator. Strain gauges can be used to measure the force acting on the object and are mounted on the fingers of a gripper. Strain gauges 2 & 3 are attached inside of the finger. Strain gauges 1 & 4 are attached to the outside of the finger.
When the object is grasped, gripping force causes strain gauges 2 & 3 to stretch and 1 & 4 to compress. The resistance of the gauges 2 & 3 increase, while the resistance of gauges 1 & 4 decrease. Suppose the strain gauges are used as force-sensors, what is the bridge output when there is no gripping force? What is the output voltage for a gripping force that causes a strain of 3000 µm?
(Let us assume the supply voltage to be 12V. Strain gauges have unstrained resistance of 1000?.Use the formula, 
What will be an ideal response?
What is the time constant in an RC integrating circuit if a 22 k? resistor is in series with a 0.02 ?F capacitor?
A) 0.44 s B) 0.044 ms C) 0.044 ?s D) 0.44 ms