Comparators - Multiple Choice Questions and Answers

Comparators - Multiple Choice Questions and Answers Points : comparators, measuring instruments, mechanical engineering, metrology, mechanical technology, mcqs, evaluation, judgment, gauging, rating, consideration, analysis, examination, workup, test, review, objective type question and answer, multiple choice questions and answer Multiple Choice Questions and Answers 1. Pick up the correct statement. A comparator:
(a) Needs to be calibrated
(b) Need not be calibrated
(c) Contains a calibrated scale
(d) Is highly accurate over its complete measuring range.

2. The microscope had been in use since early century of:
(a) Seventeenth
(b) Eighteenth
(c) Nineteenth
(d) Twenteenth

3. It has small number of moving parts:
(a) Optical comparator
(b) Electrical comparator
(c) Pneumatic comparator
(d) All of the above

4. Electrical comparators are also known as:
(a) Mechanical measuring system
(b) Pneumatic measuring system
(c) Electro-mechanical measuring system
(d) Vertical caliper

5. Which of the following instruments is most accurate:
(a) Mechanical comparator
(b) Optical projector
(c) Slip gauge
(d) Vertical caliper

6. Optical gauge works on the principle of:
(a) Reflection
(b) Refraction
(c) Interference of light rays
(d) Polarization

7. Which comparator utilizes the principle of a button spinning on a loop of string:
(a) Optical comparator
(b) Zeiss comparator
(c) Aramson comparator
(d) None of the above

8. A comparator for its working depends on:
(a) Optical devices
(b) Accurately calibrated scale
(c) Determining zero error of scale correctly
(d) Comparison with standard such as slip gauges

9. For general use the measuring tip of comparator should be:
(a) Sphercial
(b) Flat
(c) Conical
(d) Concave

10. Eden-Rolt comparator is a popular instruments:
(a) Measurement of slip gauges
(b) Calibration of slip gauges
(c) Measurement of linear movement
(d) Measurement of angles