Concrete construction can either be done as cast-in-place concrete or precast concrete. Give three disadvantages of precast concrete.
What will be an ideal response?
(i) Cost of transportation is high because of the weight and size of components. (ii) Erection cost is high because of heavy elements. (iii) Precast construction involves complicated assembly using welding and lacks the monolithicity of cast-in-place concrete.
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Most transient suppression modules consist of an RC circuit that is designed to suppress coil voltage transients to approximately what percentage of the peak coil supply voltage?
a. 125% b. 200% c. 250% d. 300%
Mr. Ivanichek used a 24-foot-wide disk to disk 340 acres of wheat. He was able to disk 10.8 acres per hour with a total cost of $78.50 per hour.
a. How many hours did it take to do the disking? b. What did it cost to do the disking? c. What was the cost per acre?
During low-speed cruising with the 2006 Civic hybrid ________
A) No gasoline is consumed at all B) The electric engine alone can power the vehicle C) Both A and B D) Neither A nor B
People maintain their steady internal body temperature by:
A) Sunning ourselves on radiant surfaces. B) Producing exactly the amount of heat needed to maintain body temperature. C) Producing more internal heat than needed and expelling the extra heat. D) Adjusting our internal temperature to the surrounding conditions.