scientist, discoveries & inventions MCQ section 2 Practice Questions Answers Test with Solutions & More Shortcuts

Answer: (d)

The invention of the first automatic car is more evolutionary than the result of a single invention. Frenchmen Louis-Rene Panhard and Emile Levassor are recognized for inventing the modern transmission in 1894, but it was Thomas J. Sturtevant of Boston, Mass., who designed the first automatic transmission in 1904.

In 1938, General Motors developed the first line of cars to sport automatic transmission — Oldsmobiles that offered “Hydra-Matic drive.” The cars were introduced to the public in 1940.

In 1941, Chrysler followed suit and introduced three different cars that offered their version of the automatic drive, “Vacamatic” (later called “Fluid Drive”). Automatic transmission was a fairly common option on most American cars by 1948.

Ford-O-Matic was the first automatic transmission widely used by Ford Motor Company.

Answer: (d)

The Gyroplane Laboratoire was an early helicopter. Its designer, Frenchman Louis Breguet, had already experimented with rotorcraft in 1909, however, he chose to concentrate on aeroplanes until the end of the 1920s.

In 1929 he announced a set of patents that addressed the flight stabilization of rotorcraft, and, in 1931, Breguet created the Syndicat d'Etudes de Gyroplane.

Answer: (a)

Answer: (d)

Systemic arterial blood pressure usually is measured using an instrument called a sphygmomanometer. This device consists of an inflatable rubber cuff connected by tubing to a compressible bulb and a glass tube containing a column of mercury.

The bulb is used to pump air into the cuff, and a rise in the mercury column indicates the pressure produced.

Answer: (a)

Vinod Dham is an inventor, entrepreneur and venture capitalist. He is popularly known as the Father of the Pentium chip, for his contribution to the development of highly successful Pentium Processors from Intel.

He is a mentor, advisor and investor; and sits on the boards of many companies including promising startups funded through his India based fund – Indo US Venture Partners, where he is the founding Managing Director.