Question 1 25 pts
A simple gear train is formed by three gears on separate axles meshed together in
sequence. Gear A is powered by an electric motor. Gear A (25-teeth) meshes with gear B
(61-teeth), and gear B meshes with gear C (84-teeth). What is the total gear ratio (GR) of
the simple gear train? Write your answer in decimal form to the nearest tenth (0.0).

On a average work day more than work place firs are reorted

The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k