Asynchronous counters are commonly referred to as ____ counters.
A. decade
B. up-down
C. ripple
D. parallel
Answer: C
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Which of the following has a cup and a cone?
A. ball-thrust bearing B. angular-contact bearing C. taper-roller bearing D. stave bearing liner
What is a potential production impact of improper valve lineup?
A) Cross contamination B) Out of specification material C) Decomposition of material D) Added cost for cleanup
A recent attempt to circumnavigate the world in a balloon used a helium-filled balloon whose volume was 7240 m3 and surface area was 1800 m2. The skin of this balloon is 2 mm thick and is made of a material whose helium diffusion coefficient is 1 × 10?9 m2/s. The molar concentration of the helium at the inner surface of the balloon skin is 0.2 kmol/m3 and the molar concentration at the outer surface is extremely small. The rate at which helium is lost from this balloon is
(a) 0.26 kg/h (b) 1.5 kg/h (c) 2.6 kg/h (d) 3.8 kg/h (e) 5.2 kg/h
Rotational force is referred to as ____.
a. momentum b. inertia c. friction d. torque