NOCTI Practice Questions and Answers

A civil engineer is best suited to... a. develop a new model of a car b. study atmospheric pollutants c. investigate the mechanics of bridges and roads d. perform pipe stress analysis - Answer- c. investigate the mechanics of bridges and roads Which of the following is the earliest example of engineering? a. Archimedes screw b. moving assembly line c. Gutenberg press d. cloth weaving loom - Answer- a. Archimedes screw Which of the following is an example of an inexhaustible energy source? a. natural gas b. wind c. nuclear d. coal - Answer- b. wind A video game company would like to test a new game controller design. Which of the following would be the best way for them to start testing the comfort and effectiveness of the controller? a. sample b. prototype c. scale model d. mockup - Answer- b. prototype The branch of engineering that combines physical science, life science, mathematics, and economics to processes that convert raw materials into more valuable forms is called ___________ engineering. a. chemical b. industrial c. mechanical d. electrical - Answer- a. chemical The main components of the engineering design process include identifying, defining, selecting, implementing, and... a. evaluating b. enhancing c. deconstructing d. debating - Answer- a. evaluating Using Ohm's Law, how much current is going through the following circuit? 15.5 volts 5 Ohms resistance a. 7.75 amps b. 3.1 amps c. 77.5 amps d. 31.0 amps - Answer- b. 3.1 amps Which step of problem solving helps to determine if a certain product is of value? a. identify possible solutions b. identify the problem c. evaluation d. implementation - Answer- c. evaluation Tom wants to research how materials and parts move through his plant in order to see where and how the company may be able to increase productivity. This is the study of... a. waste spending analysis b. mechanical engineering c. production flow d. operation management - Answer- c. production flow What is the cubic area of an object that is 5 feet long, 2.5 feet wide, and 3.5 feet tall? a. 52.25 ft2 b. 47.50 ft3 c. 43.75 ft2 d. 43.75 ft3 - Answer- d. 43.75 ft3 In the engineering design process, stating the problem is the ____________ step. a. third b. first c. second d. fourth - Answer- b. first The proper second step to refine a potential product is a. modify b. retest c. build product d. test - Answer- d. test What does the symbol below stand for? x̄ a. mean b. reciprocal c. standard deviation d. sum of - Answer- a. mean Using the information given, determine the break-even point. Fixed costs = $35,000 Variable cost per unit = $1,500 Unit price = $2,000 a. 125 units b. 70 units c. 50 units d. 35 units - Answer- b. 70 units The core concepts of technology are... a. technical writing, ethical behavior, and critical thinking b. skillful research, ethical behavior, and critical thinking c. skillful research, cooperative groups, and critical thinking d. skillful research, ethical behavior, and cooperative groups - Answer- b. skillful research, ethical behavior, and critical thinking Which of the following formulas is used to determine the area of a circle? a. A = L x W x H b. A = 1/2bh c. A = πr^2 d. A = 2πr - Answer- c. A = πr^2 In order to reduce friction between a work piece and a cutting site, ____________ is used. a. cutting fluid b. simulated wood c. a power saw d. a dull blade - Answer- a. cutting fluid A steel container weighing 90 pounds has a coefficient of friction equaling 0.61. How much force is required to move this box on a dry and clean surface? a. 33.3 pounds b. 54.9 pounds c. 75.3 pounds d. 115 pounds - Answer- b. 54.9 pounds The ability of a material to be stretched into a longer, thinner shape is called a. malleability b. conductivity c. hardness d. ductility - Answer- d. ductility Which of the following materials would be most appropriate for the housing of a corrosion-resistant valve on a scuba diving tank? a. aluminum b. lead c. brass d. iron - Answer- c. brass Twin brothers on opposite sides of the yard throw identical snowballs at each other. The snowballs were both traveling upward at a 45-degree angle and both were traveling at 25 mph. At what angle, relative to the flat ground of the yard, is the new combined snowball traveling immediately after the collision? a. 45 degrees b. 60 degrees c. 90 degrees d. 30 degrees - Answer- c. 90 degrees Which of the following drawing methods would generate a three-view drawing? a. orthographic b. cabinet oblique c. cavalier oblique d. isometric - Answer- a. orthographic The planning step of the design process involves a. building a mockup b. testing prototype c. evaluating feedback from testers d. list needed materials - Answer- d. list needed materials When working with tools and machines, ____________ is/are always required. a. supervision b. certification c. steel toed boots d. personal protective equipment - Answer- d. personal protective equipment When using a drill press to drill a hole near one end of a ruler, a. securely clamp the workpiece in a vise b. hold it firmly with the left hand c. securely clamp the workpiece in a V-block d. make sure the long end of the workpiece is to the right of the user - Answer- a. securely clamp the workpiece in a vise Juan and Evelyn are on a teetertotter. The teeter-totter is 15 feet long. Juan weighs 150 pounds, and Evelyn weighs 100 pounds. How far away from Juan should the fulcrum be placed to balance the teetertotter? a. 3 feet b. 6 feet c. 10 feet d. 9 feet - Answer- b. 6 feet A critical component of a drill press is the a. hold-down clamp b. drive belt c. chuck key d. motor cover - Answer- b. drive belt Critical thinking skills would best be applied to which of the following? a. forming an opinion on artificial intelligence b. determining how many customers are happy with a product c. choosing the cheapest vendor for a part d. calculating what size hydraulic cylinder to use in a project - Answer- a. forming an opinion on artificial intelligence Which of the following is a characteristic of effective communication? a. creativity b. leadership c. education d. open discussion - Answer- d. open discussion Strong technical communication skills would be most helpful for which of the following tasks? a. updating the user interface for an automated teller machine (ATM) b. developing an advertising campaign for an electronic children's toy c. designing a more comfortable computer mouse d. writing a repair manual for a commercial printing press - Answer- d. writing a repair manual for a commercial printing press Many factors are taken into account when choosing members of an engineering team. Which of the following is most important when ass