An old-school mechanical device consisting of sliding rules and scale markers used by engineers to calculate multiplication and trigonometry via logarithmic scales is a: MCQ with Answer and Explanation
An old-school mechanical device consisting of sliding rules and scale markers used by engineers to calculate multiplication and trigonometry via logarithmic scales is a:
A. Digital Calculator
B. Difference Engine
C. Slide Rule
D. Abacus Unit
Answer: Option C
Solution (By JKSSB Mock Tests)
The Slide Rule is an early analog mechanical calculating device that uses physical alignment lengths on logarithmic scales to perform math.
Which historical mechanical device featured a grid of sliding beads on wires and was split into a top section ('Heaven') and a bottom section ('Earth')?
Explanation:
Traditional Chinese abacuses (Suanpan) feature a structural upper deck ('Heaven') and a lower deck ('Earth') for positional base-5 arithmetic.
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