Building structures quiz questions with correct answers 2024

Two main categories under which all buildings loads may be classified are - answer-Gravity, lateral Which of the following loads can be estimated with the greatest certainty - answer-dead loads In which of the following roofs will you need to consider the effect of rain loads - answer-Any roof with a parapet The highest wind speeds are usually obtained in - answer-tornadoes A reinforced concrete beam measures 12in x 24in in cross section. If the density of reinforced concrete is 150lbs/ft3 the weight of the beam is - answer-300lbs/ft If columns are spaced at 40ft center in one direction and 25ft in other direction. Tributary area is - answer-1000 sf Which gives greater warning before failure? - answer-Ductile material Low carbon (mild) steel is a. an elastic material b. a plastic material c. an elastic-plastic material d. none of the above - answer-c. an elastic-plastic material. The primary purpose of longitudinal steel bars in a reinforced concrete beam is to overcome the weakness of concrete in tension - answer-True The horizontal blocking in wood studs helps prevent - answer-buckling of studs What does USCS mean - answer-Unified soil classification system According to the USCS what do the OH designation - answer-Organic high plasticity According to the USCS what do the MW designation mean - answer-Silt well graded Dewatering of an excavation, as described in this text, can be done by the - answer-Well pointed method Soil in its situ state is referred to as - answer-Bank material Cohesive soils are those in which the dry soil particles tend to separate from each other when mixed with a small amount of water. - answer-B. False Top-down construction has the disadvantage of having to complete all lower level excavation prior to erecting the building - answer-False The standard penetration test (SPT) is used in non-cohesive soils to determine the N value - answer-False Thumb Penetration Test is used to estimate the compressive strength of cohesive soils - answer-True Capillary is the movement of water within a soil while Permeability is the rise of water above the ground water table against the pull of gravity - answer-False Which of the following systems is designed to carry the vertical load of the structure - answer-piling Settlement of foundations causes stresses in the structural frame of the building when the settlement is - answer-Large and uniform over the entire foundation area Drilled piers transfer building loads mainly by end bearing, while piles do so by both end bearing and skin friction. - answer-B. False The process used to increase bearing capacity of a drilled caisson/pier is called - answer-Belling If two or more piles are located at the same bearing area they must be connected by an - answer-Pile/pier cap The purpose of in a frost protected shallow foundation is to reduce the loss of interior heat - answer-False A posttensioned concrete slab on ground foundation does not require control joints - answer-True A raft foundation is a shallow foundation system. - answer-True Which of the following foundations systems does not extend generally uninterrupted for the entire footprint of the building - answer-Pier or pile In a deep foundation system, foundation settlement is generally larger than in a shallow foundation system - answer-False Maintaining proper water content and temperature of concrete until it has hydrated properly is called curing - answer-True To achieve high early strength in concrete type IV Portland cement should be used - answer-False A type of concrete admixture used to increase the setting time is called a retarder - answer-True The depth of a control joint should be half the thickness of the slab - answer-False The primary components of raw materials for Portland cement do not include - answer-Fly ash Concrete should reach its designed strength within ________ days - answer-28 Which of the following does not add to the plastic shrinkage cracking or concrete - answer-Cold weather The main difference between a jump form systems and slip form system is the use of - answer-Yokes A #5 reinforcing bar is _______ in diameter - answer-5/8" ACI is the organization that oversees concrete formwork standards. What does ACI stand for - answer-American concrete institute