BOILERMAKER 3 || Questions with complete answers.

Gate valves should not be used to _____. correct answers throttle flow The main advantage of using gate valves instead of globe valves is that the gate valves ________. correct answers have less flow restriction Which of the following valves is a rotary action valve? correct answers Ball Which of the following valves is easily adapted to multiport construction? correct answers Plug A globe valve that closes against the direction of fluid flow is said to be _____ . correct answers Flow-to-open One disadvantage of the globe valve is ______. correct answers high head loss on the downstream side A simpler version of the globe valve is the _______. correct answers angle valve Which valve's discharge conditions are so favorable that many control valves are based on it? correct answers Angle A needle valve may be used when an application requires_____. correct answers fine adjustment of flow Safety valves are commonly installed_____ correct answers vertically Relief valves are normally used in liquid services. correct answers True A swing check valve requires a counterweight if used_____ correct answers in a vertical flow In a swing check valve, the amount that the disc is open is determined by the_____ correct answers volume of liquid moving through the valve Why are ball check valves recommended for use in lines in which the fluid pressure changes rapidly? correct answers Lack of noise Which type of gear operator is used to connect parallel shafts? correct answers Spur-gear operator The teeth on each gear of a bevel-gear operator are angled to what degree so that they will mesh with the teeth of a mating gear? correct answers 45 degrees The chain used on a chain operator is brought to within what distance of the working floor level? correct answers 3 feet