175. Main components of the engine to regulate speed is the ?

174. What is the purpose of the dehydrator in refrigeration?

153. Which of the following determines the measure gap between the face of the burner atomizer tip nut and the diffuser plate?

147. Which of the following statement is correct relative to distillation plant operations?

104. The capacity of a rotary pump, when operated at a constant speed, will decrease with an increase in the pump?

180. Why should hydraulic cranes be properly warmed- up before they are used?

103. To keep the movement of the rudder closely in step with the steering wheel, which of the devices listed, when used on an electro hydraulic steering gear ?

196. Part of centrifugal disc purifier use to hold discs in place and directs the flow of dirt liquid to the bottom then to the disc as the oil flow

134. One of the routine tasks onboard maintenance for Gas turbine is mainly of daily visual checks of the running engine. What are you going to execute after a fix number of operating hours to remove any salt deposits on the compressor?

110. What is the importance of the control box of a differential gear system in a steering gear system ?

178. One of the routine tasks onboard maintenance for Gas Turbine is mainly of daily visual checks of the running engine. What are you going to execute after a fix number of operating hours to remove any salt deposits on the compressor?

120. Strainer is commonly used in hydraulic system in order to ?

185. If you hear a crankling sound coming from a salt water centrifugal pump casing, the most probable cause of the noise would be ?

129. What action would you take to perform the most important rule for the safe operation of a boiler?

155. Why is thin tipping design procedure is used in modern reaction turbines?

186. The capacity of a rotary pump, delivering a constant viscosity fluid, will decrease when the discharge pressure is increased, due to?

131. Inspection of a low pressure gear pump for cavitation will usually be indicates by wear pattern?

158. Labyrinth seals used to reduce leakage around a turbine shaft are constructed of ______.

168. How is constant steam pressure maintained?

105. Fluctuations in the pressure and temperature of the steam supplied to the first effect of a low pressure submerged tube distilling plant will cause______.

164. A squeking sound occurring from within an operating reciprocating air compressors is an indication of?

128. If the fixed orifice in the evaporator steam supply line were to be removed, the steamed pressure reducing valve located upstream would ________.

140. Which of the following components is the primary shaft emerging out of the engine? It directly receives the rotational motion from the crankshaft and rotates at the maximum velocity in high speed engines.

161. What is the reason why fuel is heated before atomizing is to?

136. What is the cause of excessively low air pressure occuring in the intercooler of a reciprocating air compressors?

162. Which of the listed conditions is responsible for causing the gland leak off steam from a propulsion turbine to pass through the gland exhaust condenser?

182. If a reciprocating air compressors has a knock occuring in frequency with its operating RPM, the cause is probably _____.

190. Main engine lube oil sump tank is located?

116. What is the characteristic of a one ton air conditioning system?

197. Which of the items listed below is normally describe a ventilating fan?

127. Prior to starting, the purpose of turning over a main propulsion diesel engine with the cylinder test cocks open, is to?

130. How do you control freshwater heating temperature in the evaporator side of a Fresh Water Generator?

139. Increasing the speed of a centrifugal pump will result in an increase in the pump capacity . Another means of increasing the total head pressure of a centrifugal pump is to increase the?

160. An internally mixed steam atomizer requires which of the following compared to a return flow oil burner system?

111. Which of the following components is the primary shaft emerging out of the engine .It directly receives the rotational motion from the crankshaft and rotates at the maximum velocity in high speed engines.

138. During injection, the cam nose of the camshaft will push up the plunger of the pump, forcing the fuel to the?

125. Which of the following is the primary purpose of heaters in pressurized fuel oil system?

137. While overhauling a jerk-type pump and the pump plunger must be replaced. What other part must also be replaced?

113. Which of the following cases listed below should soot blowing be applied to avoid soot fires?

150. What type of pump is used in the steering gear of modern ship?

126. Which of the following would result if the temperature of the fuel to the burners is too low?

135. What causes carbon deposits in the fuel heater?

177. Most fuel injection nozzles are opened by?

149. Some engines are using auxillary electrically driven blowers which is continuously running during manuevering and automatically cut- off if the scavenge air pressure reaches______ load.

200. Irregular feeding or surging of the feedwater supply to a low pressure distilling plant may be attributed to ______.

166. An oil mist detector is used to detect an oil mist formation in the diesel engine crankcase. Which of the following causes oil mist formation?

167. The bore of a diesel engine describes the ?

156. In a refrigeration system, the amount of superheat absorbed by the refrigerant is adjusted at the_____'

107. Which combination of the main shaft segments listed below, that are located furthest from the main engine are connected by the inboard stern tube shaft coupling?

118. The average pressure exerted on a piston during each power stroke is termed ________.

142. How does a quick closing valve operate?

151. What is the possible cause of fuel oil accumulation in boiler casing is?

117. The dehydrator of a refrigeration system is located?

143. If the boiler fires are extinguished by water contamination in the fuel oil, you should FIRST?

148. How many fuel oil heaters are required for main engine operation?

144. How is viscosity of fuel in the atomizer can be reduced?

115. If the flow of water from the centrifugal pump is allowed to be stopped by closing the discharge valve while the pump continues to run for an extended period, which of the following will occur?

114. What is the use of a steam control valves installed in the auxillary exhaust line?

188. Which of the following statement is correct when a piston is said to be at top dead center?

159. Visual inspection of a fuel injector valve, removed during overhaul, shows heat discoloration of the lower end of the valve. This is an indication of_______.

145. In an engine operation what is the effect called that describes the unstable operations of the governor that will not maintain a steady state condition?

122. The function of a centrifugal pump double volute casing to ?

179. Boiler safety valves are set not to go above maximum operating pressure of higher than?

109. Which of the following is the direction of the recirculating valve of a boiler return flow of fuel system when firing a cold boiler ?

133. What part of the boiler provides water circulation to the waterwall tubes ?

189. The purpose of the six-way valve used in an electro- hydraulic steering system is to____.

193. Why diesel engine lubricating oil need more purification compare with the lubricating oil in a gas turbine?

165. The function of seal cages , or lantern rings installed in the centrifugal pump stuffing boxes, is to _______.

163. Parts of the pump used to maintain the alignment of the pump are?

112. The firing rate of boiler using steam atomization is indicated by the?

192. When turbine rotor shafts extend through the casing , an external source of sealing steam is used in conjunction with labyrinth packing to _______.

181. In a main propulsion turbine installation, the condensate pump initially discharges to the ______.

152. Gas turbine uses a cycle that includes intake, compression, expansion and exhaust. Which of the following are you going to use to best explain the complete cycle.

171. Which equipment must be tested NOT more than 12 hours prior to getting underway from a port when the voyage is to be of 48 hours or greater duration?

121. The working principle of an engine is the conversion of ?

124. What precaution should be observed to prevent damage of the service pump when warming up the fuel system to the boiler is to?

194. Which of the following is the reason for installing settling tanks in the fuel oil system?

173. The purpose of the diffuser in a boiler burner assembly is to ______.

123. Distortion of the spray pattern of a nozzle or injector maybe indicated by a /an ?

170. Which of the following is the result of excessively high fuel oil temperature?

198. Which of the following terms is used to identify the pressure of the liquid?

169. How will you know the firing rate boiler using steam atomization indicated?

146. The possible cause why lube oil pumps fail to build up discharge pressure could be that the?

106. The temperature of the refrigerant in the evaporator coil defends mostly upon the _____.

183. The range of values around a set point of a measures variable where " no action" occurs in an automatic flow controller is called:

195. Why is it necessary to transfer fuel oil to the settling tanks?

199. If you were operating a centrifugal water service pump with worn wearing rings, the ________.

102. A salinity indicating system functions on the basic principle of measuring the______

187. The measure of the amount of salt present in water is called?

184. Passages are drilled at the diesel engine crankshaft in order to provide lubricating oil in the ?

108. A distorted spray pattern from a fuel injector can cause a diesel engine to have ?

101. Air leaking into a flash type distilling plant could occur through ______

157. If turbine rotor shafts extend through the casing, what external source of sealing steam is used in conjunction with labyrinth packing?

191. What is the most important rule for the safe operation of a boiler ?

154. Most of the fuel injection pumps will then closed after injection because they are fitted with a ?

176. The high pressure side of the refrigeration systems starts from the?

172. In the boiler combustion control system, when the demand for steam is increased_______

132. Integral water jacket liners use O-rings near the bottom of the liner. These O-rings serve to?

141. The greatest decrease in the temperature of a refrigerant is at the _______.

118. Cylinder oil is used for ?