Question

What is the purpose of lever attachment used in dial indicators?

(a) Checking of parts

(b) Transfer motion at the right angle to the spindle

(c) Transfer motion at the 180 degree to the spindle

(d) Transfer motion at the 60 degree to the spindle

The question was asked in a national level competition.

This key question is from Working Mechanism of Dial Indicators in division Dial Indicators and Indicating Gauges of Engineering Metrology

Answer 1

Right option is (b) Transfer motion at the right angle to the spindle

The best I can explain: Lever attachments are very useful part in a dial indicator. The attachment transfers motion 90 degree directly to the indicator spindle. There is provision to avoid any type of errors caused due to play in bearings and wear.