name: de jesus, loralo james t. id: b\n14. fo...

name: de jesus, loralo james t. id: b\n14. for voltages above 600 v, the minimum insulation resistance shall be\n a. 1,000,000 ohms per kilovolt rating c. 500,000 ohms per kilovolt rating\n b. 2,000,000 ohms per kilovolt rating d. 1,500,000 ohms per kilovolt rating\n15. cabinets and cutout boxes shall be deep enough to allow the closing of the doors when _ ampere branch - circuit panelboard switches are in any position; when combination cutout switches are in any position or when other single - throw switches are opened as far as their construction will permit.\n a. 15 c. 70\n b. 30 d. 100\n16. a car starts from rest and moves with a constant acceleration of 6 m/s². what is the speed of the car after 4 s?\n a. 18 m/s c. 24 m/s\n b. 35 m/s d. 55 m/s\n17. in a computer, what is the name of the high - speed memory used?\n a. cache c. ram\n b. hard disk d. bios\n18. the amount of property in which a willing buyer will pay to a willing seller for the property when neither one is under the compulsion to buy nor sell is called _ value.\n a. market c. fair\n b. goodwill d. second - hand\n19. what technique a manager must use if he decides to absorb the risk in the project?\n a. create buffer in the form of management reserve c. use a different supplier\n b. buy insurance d. use a different technology\n20. encryption can provide all of the following features of information systems security except _.\n a. integrity c. confidentiality\n b. privacy d. authenticity\n21. buying insurance is a form of\n a. risk reduction c. risk elimination\n b. risk absorption d. risk sharing\n22. which of the following are used in designing and documenting complex processes or programs that help to visualize what is going on and thereby help the viewer to understand a process or algorithm?\n a. networks c. diagrams\n b. flowcharts d. charts\n23. the part of the software that is not the user interface is called _.\n a. application semantics c. application framework\n b. intrinsic semantics d. controller semantics\n24. a ball is dropped from a height of 60 m above ground. how long does it take to hit the ground?\n a. 5.5 s c. 3.5 s\n b. 2.1 s d. 1.3 s\n25. the disconnecting means of a hermetic - type refrigerator compressor shall have an ampacity of at least _ of the name plate full load current.\n a. 125% c. 115%\n b. 100% d. 80%\n26. in epira, what refers to the energy resources that do not have an upper limit on the total quantity to be used?\n a. renewable energy distribution c. power development resources\n b. renewable energy resources d. renewable energy supplies\n27. each cycle of an engine gains 120 j of heat from fuel and does 30 j of work. what is the efficiency of engine?\n a. 25% c. 22%\n b. 28% d. 30%\n28. which of the following is a quasiequilibrium process?\n a. compression of air in a cylinder c. combustion\n b. a balloon bursting d. mixing paint in a can

Answer

16. # Explanation: ## Step1: Recall the velocity - acceleration formula $v = v_0+at$ Here, the car starts from rest, so $v_0 = 0\ m/s$, $a = 6\ m/s^2$ and $t = 4\ s$. ## Step2: Substitute the values $v=0 + 6\times4$ $v = 24\ m/s$ # Answer: There is no correct option provided in the given choices for this question. 24. # Explanation: ## Step1: Use the free - fall equation The equation for the height of a free - falling object is $h=v_0t+\frac{1}{2}gt^2$. Since the ball is dropped ($v_0 = 0\ m/s$), the equation simplifies to $h=\frac{1}{2}gt^2$. We know $h = 60\ m$ and $g\approx9.8\ m/s^2$. ## Step2: Solve for $t$ $t=\sqrt{\frac{2h}{g}}=\sqrt{\frac{2\times60}{9.8}}\approx\sqrt{12.24}\approx 3.5\ s$ # Answer: c. 3.5 s 27. # Explanation: ## Step1: Recall the efficiency formula for an engine The efficiency $\eta$ of an engine is given by $\eta=\frac{W}{Q_h}\times100\%$, where $W$ is the work output and $Q_h$ is the heat input. Here, $W = 30\ J$ and $Q_h=120\ J$. ## Step2: Calculate the efficiency $\eta=\frac{30}{120}\times 100\%=25\%$ # Answer: a. 25%