Welcome to your MEO Class 4 - MOTOR Test 5
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1
If the feed pump for an auxiliary boiler fails to deliver the feed water to the boiler, the cause may be
2
An increase in the air inlet manifold pressure of a diesel engine will result in a/an
3
On small diesel engines, a noticeable decrease in the time interval between the replacement of the lube filter cartridge indicates –
4
Which of the following condition may need to be reduced when operating a large, low-speed, main propulsion, diesel engine at low loads?-
5
Concerning diesel propelled vessels, the astern power is to provide for continues operation astern
6
Proper operation of the main engine reduction gear set requires the operator to monitor
7
Maximum lube system operating pressure for a diesel engine is normally regulated by a/an
8
Which bearing half will receive the greatest load in a two-stroke/cycle diesel engine?
9
Lubricating oil systems for diesel engine journal bearings are usually lubricated by which of the following types of lubricating oil systems?
10
The amount of fuel injected in a particular time, or degree, of crankshaft rotation is termed
11
Fuel droplets injected into a diesel engine cylinder must have adequate penetration to
12
A port-and-helix fuel injection pump having upper and lower plunger helixes is designed to
13
A naturally aspirated diesel engine at full throttle will have an intake manifold pressure
14
Before starting a diesel engine using an attached lube oil pump, the engineer should
15
When lighting off an auxiliary boiler, which of the problems listed could cause the burners to sputter?
16
Which of the following actions takes place in the control circuit of an automatically fired auxiliary boiler when the desired steam pressure is obtained?
17
When the prime movers of two paralleled generators, equipped with mechanical-hydraulic governors, are operating within their designed range, the unit with the least amount of speed drop will
18
Maintaining the lowest possible scavenging air temperature at all times is not recommended due to the possibility of the
19
Which of the following statements is true concerning an oil cooler?
20
Clearance volume scavenging in a turbocharged, four-stroke/cycle diesel engine is accomplished
21
Subtracting the return flow meter reading from the supply flow meter reading on a boiler equipped with a return flow fuel oil system, determines the amount of oil ____________.
22
A large, low-speed, main propulsion diesel engine uses sea water to directly cool the
23
Which of the following devices is normally provided to prevent oil starvation in a diesel lubrication system utilizing the "full flow" principle?
24
The nuts of main bearings, connecting rod bolts and all other moving parts are to be secured by
25
Friction, engine wear, and oil consumption in a diesel engine are directly related to the
26
Which of the following statements is correct regarding grades of pipe?
27
In a normally operating diesel engine, the main source of lubricating oil contamination in the crankcase is a result of the –
28
The duration of fuel injection developed by an individual port-and-helix fuel injection pump, is determined by the –
29
When may the crankcase ventilation pipes or oil drain pipes of two or more engines be connected?
30
The rate of fuel injection in a diesel engine cylinder depends primarily on
31
Which of the following conditions can cause above normal air temperature to develop in the intake manifold of a four-stroke/cycle, turbocharged, diesel engine?
32
When the lower edge of the spiral begins to uncover the release port in a jerk pump, the
33
Telescopic pipes to the piston of a large slow-speed main propulsion diesel engine are designed to prevent __________.
34
A closed freshwater cooling system is commonly used with marine diesel engines because the –
35
The crankcase of many diesel engines are kept under a slight vacuum by the ______________.
36
The output pressure of a diesel engine lube oil pump is regulated by a/an
37
An individual injection pump is designed for variable beginning and constant ending of injection. For diesel engines operating at constant speeds, the start of injection will
38
One function of the fuel pump delivery check valve is to
39
Trunk-type diesel engine pistons are most effectively cooled by heat
40
Which of the following conditions can cause above normal air temperature to develop in the intake manifold of a four-stroke/cycle, turbocharged, diesel engine?
41
The light and medium fuels utilized in internal combustion engines provide a source of
42
The valve cam slope angle determines the –
43
One advantage of hydraulic clutches over mechanical clutches in diesel engine installations is –
44
Maximum lube oil system pressure is normally controlled by
45
A large change in ambient temperature, or using an oil of a viscosity different than the one recommended by the manufacturer in a mechanical hydraulic governor, will result in the need to adjust the
46
Which of the following statements describes the unchecked growth of microbiological organisms within a fuel system?
47
Fuel oil is injected into the cylinder of a four-stroke/cycle diesel engine during the
48
Some diesel engines are fitted with a thermometer in the cooling water outlet from each cylinder. If the cooling water temperature from all cylinders begins to rise above normal, you should suspect –
49
The total starting air capacity required for reversible main engines is to be sufficient for a least
50
Proper lubrication of the main bearings is more easily obtained in a single acting four-stroke/cycle diesel engine than a single acting two-stroke/cycle diesel engine because
