GENERAL ENGINEERING KNOWLEDGE – MEO CLASS 4 MMD PAPER

21. Steel is an alloy of iron carbon and alloying components what is the carbon content?
    1. Less than 1 %
    2. Less than 2%
    3. Greater than 2%
    4. Any % of carbon

ANS.: B

22. Tube in air compressors, self compensating for expansion (if multi choice include coil tube also)
    1. Straight line tube
    2. U tube
    3. Coil tube
    4. Floating tube

ANS.: B

23. ­­­­­­­­­­­­­­­­­­­­­­­­­­­­___________ boiler feed pumps is used in modern ships
    1. Reciprocating pump
    2. Hele shaw pump
    3. Multistage centrifugal pump
    4. Single stage centrifugal pump

ANS.: C

24. The actuator of ballast valve in duct keel in port to carry deballast open best practice
    1. Interchange from another valve.
    2. Manually operated
    3. Leave the tank full and ask for shore assistance.
    4. Portable pump through manhole.

ANS.: B

25. Crude oil or crude oil+ballast water of same specific gravity ________ current in pump with same discharge pressure
    1. More
    2. Less
    3. Same
    4. Does not depend

ANS.: C

26. Protection of zinc protective coating is good at
    1. 50 degree Celsius
    2. 65
    3. 90
    4. 115

ANS.: B

27. Which of the following anodes in an ICCP can be used for comparatively higher current densities :-
    1. Zinc
    2. Silicon
    3. Lead , silver
    4. Platinized titanium

ANS.: D

28. Effective suction/SOOT blowing of exhaust gasket
    1. Minium chance of suction fire
    2. Increase efficiently
    3. Minimum heavy corrosion and leading tube failure
    4. All the above

ANS.: D

29. High chloride of boiler water is caused by
    1. Leaking tube of exhaust steam condenser
    2. Excessive steam leak resulting high
    3. Poor quality of boiler make up water
    4. All the above

ANS.: D

30. Hot work onboard
    1. Switch alarm
    2. Keep fire extinguisher
    3. Standby person
    4. All the above

ANS.: D

31. Exhaust gas boiler fire suitable measures
    1. Frequent suit blowing
    2. Increase engine speed to blow suite
    3. Stop cooling water circulation to avoid leakages
    4. None of the above

ANS.: D

32. In RT flex engine which of the following comment of main engine made redundant
    1. Fuel p/p
    2. Starting air v/v
    3. Starting air distributor
    4. Auxiliary blower

ANS.: A

33. Scale Formation in FWG evaporator side –
    1. increase in shell temp
    2. heat transfer impaired
    3. production affected
    4. ALL OF THE ABOVE

ANS.: D

34. Refer cooling tubes act as self-cooling & expansion by
    1. Straight tube
    2. U tube
    3. Spring tube

ANS.: C

35. Which of the following is an important requirement for proper functioning of sacrificial anode system?
    1. Good Insulation between anodes and ship’s hull
    2. Good electrical continuity between anodes and ship’s hull
    3. Providing protection of anodes from being painted over during hull painting
    4. Presence of an insulating material between anode and the cathode

ANS.: B

36. Which of the following is an important requirement for proper functioning of sacrificial anode system? (MCQ)
    1. Good Insulation between anodes and ship’s hull
    2. Good electrical continuity between anodes and ship’s hull
    3. Providing protection of anodes from being painted over during hull painting
    4. Presence of an insulating material between anode and the cathode

ANS.: 2,3