A. Z
B. T
C. Tn
D. W
Tungsten, or wolfram, is a chemical element with the symbol W and atomic number 74. The name tungsten comes from the former Swedish name for the tungstate mineral scheelite, tung sten or “heavy stone”.
The fan was invented in 1882 by Schuyler Skaats Wheeler. A few years later, Philip Diehl mounted a fan blade on a sewing machine motor and attached it to the ceiling, inventing the ceiling fan, which he patented in 1887.
A. 1.008
B. 0.55
C. 0.184
D. 1.637
A. CO is 1.25 times faster than CO2
B. CO is 3.75 times faster than CO2
C. CO is 1.25 times faster than CO
D. Both diffuse at the same rate
A. Communication
B. Weaving
C. Food indudtry
D. None of these
Optical fibers are used most often as a means to transmit light between the two ends of the fiber and find wide usage in fiber-optic communications, where they permit transmission over longer distances and at higher bandwidths (data transfer rates) than electrical cables.
A. Thrombosis
B. Fibrosis
C. Agglutination
D. None
Lactometer is a type of Hydrometer which is used to measure the specific gravity of _________?
A. Honey
B. Water
C. Milk
D. olive oil
E. None of these