Welcome to your MEO Class 4 - MOTOR Test 6
Click NEXT to start your TEST
1
In a naturally aspirated diesel engine, the volume of air intake is directly related to engine
2
For a 2 stroke engine with exhaust ports—
3
Sticking of diesel engine piston compression rings may be caused by-
4
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting-
5
Which of the bearings listed are most widely used for the main and connected rod bearings of a diesel engine?
6
Multiple concentric valve springs are often used with diesel engine valves to
7
Before starting a diesel engine using an attached lube oil pump, the engineer should
8
One advantage of vacuum feed type cylinder lubricators over the liquid sight type is-
9
ME scavenge air temperature is adjusted by
10
Using a MECC oil of high TBN can cause—
11
During extremely cold weather, while starting an engine, it turns too slowly and fails to start. This problem is most likely the result of
12
For a ME which has a 5 micron fuel filter, a homogenizer ( omega fire ) is usually fitted –
13
Diesel engine main and connecting rod precision bearings are made in halves. Each half exceeds one-half the bearing circumference by a small amount. The small amount is termed
14
Fuel oil penetration into the cylinder of a diesel engine is
15
The maximum amount of liner wear occurs at—
16
In the preheater before purifier the recommended heavy oil preheat is-
17
When exessive fuel dilution is noted in the lube oil, the oil should be-
18
If the main propulsion diesel engine governor works irregularly with a jerking motion, a possible cause can be-
19
Cooling water pumps driven by direct reversing diesel engines are usually of the straight impeller vane type -pump with a concentric housing to
20
Which of the bearings listed is most widely used for main and connecting rod bearings of modern diesel engines?
21
In a bypass filtering system for a medium or high speed diesel engine, the lube oil bypassing the filter
22
For a main engine fuel system which has a 5 micron filter ,a super decanter is usually fitted—
23
Prolonged operation of a diesel engine with a closed cooling water system, at lower than normal designed temperatures can –
24
How are hydraulic valve lash adjusters on diesel engine rocker arm assemblies lubricated?
25
ME LO inlet temperature should be—
26
The piston rod scraper box incorporated in a single acting two-stroke/cycle, crosshead diesel engine serves to
27
Which of the following statements best describes the operational characteristics of an isochronous governors?-
28
You see white smoke coming from the ME funnel stack, this could be
29
Motor vessels usually have an independent lube oil system each for the main engine and main reduction gears because
30
For low sulphur 380 cst fuels the TBN of MECC oil should be in the region of—
31
Heat exchangers are most commonly found in a small auxiliary diesel engine
32
The proper location for journal bearing oil grooves is
33
In a diesel engine, the main bearings are used between the
34
The scavenge air high temperature set point for 2 stroke ME is
35
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?
36
An emergency diesel generator cooling system is equipped with an automotive type thermostat. If the thermostat bellows loses its charge, the thermostat will
37
Crankcase explosions of main engines can be due to-
38
A diesel engine using lube oil with too high a viscosity will exhibit
39
Directional intake ports in diesel engines are used to
40
If there is air in the fuel oil filter, the compression and re expansion of air will—
41
Which of the following methods is normally used to lubricate bearings in a small high-speed diesel engine?
42
When using a high TBN MECYL oil and suddenly the ship has to use low sulphur 380 cst HO in the ME, due to SECA area entry—
43
The crank angles of a 2 stroke engine are—
44
The ME jacket FW cooling outlet temperature is
45
Which of the following cannot be removed from fuel oil by centrifuging in the purifier and micro-filtration
46
Exhaust temp of one ME cylinder high could mean
47
When fuel is injected late into a diesel engine cylinder
48
Theoretical perfect combustion in a diesel engine yields by-products of
49
Which of the listed bearing installations is subjected to swinging motion?
50
Pre combustion chambers, air cells, and energy cells in high-speed, small bore diesel engines all serve to increase-
