Left-hand threads are cut by:
A) Using a standard tool and setting the compound 29.5 degrees to the left of the operator
B) Using a left hand threading die as these threads cannot be made on an ordinary lathe
C) Turning the tool upside down, reversing the rotation of the spindle and moving the tool from left to right
D) Making a right hand thread and turning it end for end
A
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When using site-layout instruments, the readouts for angular measurements are typically expressed in _____.
a. degrees Celsius b. delta values c. decimal fractions d. degrees, minutes, and seconds
The ____________________ is a combination of two semiconductor devices: the thermistor and the varistor.
Fill in the blank(s) with the appropriate word(s).
Higher-tolerance part means that there is greater variation in the dimensions among several examples of the same part.
Answer the following statement true (T) or false (F)
The basic approach to testing D/A converters is to ________
A) single-step the device through its full input range while checking the output with a DMM B) check the output with zero input and then full input. The output of the converter should extend from zero to its maximum value. If so, then everything in between can be assumed to be operating properly C) apply the correct input to the analog terminal and then check to see if the proper binary code exists on the digital inputs D) apply a sequence of binary codes covering the full range of the input to the input while observing the output on an oscilloscope. The output should consist of a linear stairstep ramp