Challenger App

No.1 PSC Learning App

1M+ Downloads
The stadia tachometry was discovered by James Watt in the year

A1670

B1770

C1870

D1990

Answer:

B. 1770


Related Questions:

The time required for 1 KW electric heater to raise the temperature of 10 litres of water through 10°C is :
The vertical distance a point above the datum is called:
For making 100m^3 of C.C 1:11/2:3 the broken required is:
The lower edge of the sloping surface of a roof is called
The following sights are taken on a turning point