Technician A says primary vibration is created by the slight differences in the inertia of the pistons between top dead center and bottom dead center. Technician B says secondary vibration is a strong low-frequency vibration caused by the movement of the piston traveling up and down in the cylinder. Who is right?
A) Technician A only
B) Technician B only
C) Both technicians A and B
D) Neither technician A nor B
D
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The illumination from a point source 4 ft. above a surface is 100 foot-candles, and the surface is normal to the source. What will be the illumination level if the surface is tilted 45°?
A) 50 foot-candles. B) 100 foot-candles. C) 71 foot-candles.
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The R-value of a concrete tilt-up wall is 1.20. What is its R-value considering air-to-air heat transfer through it?
What will be an ideal response?
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_____ estimates are prepared from completed drawings and specifications.
a. Change order b. Field c. Detailed d. Resource
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Leaf springs typically accompany MacPherson strut suspensions.
Answer the following statement true (T) or false (F)
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