6. When are revolution counters recommended for balanced indicator dials?

a. they are not recommended

b. when they are used as warning signal

c. when the number of divisions around the dial is greater than 10

d. when overrotation has occurred

7. Which of the following features is a metrological feature of dial indicators?

a. measured point

b. indicating hand

C. contact point

d. the dial

9. Which answer explains why increasing amplification could decrease sensitivity for comparator instruments?

a. Amplification doesn't actually decrease sensitivity, it just makes it harder to read.

b. Higher levels of amplification require increased force from the input signal.

c. Increased amplification reduces the precision of the instrument.

d. Higher amplification decreases the force of the input signal.

10. Discrimination, range, and amplification of dial indicators

a. need to be calibrated often

b. are independent and unaffected by design

c. are not as important as sensitivity and accuracy

d. are interrelated and determined by design

12. Which of the following statement regarding dial indicators is NOT correct?

a. In C-frame configuration they do not conform to Abbe's law.

b. They are the most important comparison instruments.

c. They must always be used in conjunction with a stand or holder.

d. Amplification is achieved by a rack and gearing plus pointer length.

13. Which of the following are considered the three elements of measurement?

a. distance, weight, volume

b. shape, position, time

c. precision, accuracy, reliability

d. time, mass, length

14. Which of the following statements regarding amplification is correct?

a. Micrometer's are generally limited to the smallest divisions reliably read with the human eye, discrimination of 1/64.

b. Amplification requires the use of a lens to increase the power of an instrument.

c. Vernier scales use a mechanical system to allow discrimination to be greatly increased.

d. Rule's generally have less discrimination than vernier's but greater precision.

15. In_________measurement, precision depends on the discrimination of the scale and the means for reading it.

16. The dial indicator measures change in_________

17. When the standard is part of the instrument,_______limits range.

18. _______is the minimum input that will result in a discernible change in output.