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Area 1 Eya > Part 1 > Flashcards

Part 1 Flashcards

1
Q

An engine that burns fuel inside the cylinder.

External combustion engine
Internal combustion engine
Sterling engine
None of the above

A

internal combustion engine

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2
Q

Part of engine that which slides up and down the cylinder and transmits power to the crankshaft.

Connecting rod
Cylinder block
Piston
Spark plug

A

Answer - Piston

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3
Q

Amount of power that the manufacturer specified for an engine.

Indicated horsepower
Brake horsepower
Rated horsepower
Belt horsepower

A

Answer – Rated Horsepower

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4
Q

Distance of movement piston from the top dead to the bottom dead center.

Stroke
Bore
Valve clearance
None of the Above

A

Answer - Stroke

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5
Q

Reduction of engine speed or flow of fuel.

Throttling
Clutching
Atomization
None of the above

A

Answer - Throttling

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6
Q

A device which uses fluid power to produce mechanical force and motion.

Governor
Accumulator
Actuator
None of the above

A

Answer - Actuator

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7
Q

A mechanical breaking up of fuel into spray droplets by high velocity of air passing through a jet.

Atomization
Carburetion
Turbo charging
None of the above

A

Answer - Atomization

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8
Q

A device that is used to actuate the throttle of an engine to increase its speed.

Governor
Accelerator
Actuator
None of the above

A

Answer - Accelerator

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9
Q

Usable power delivered by the engine

Indicated horsepower
Brake horsepower
Rated horsepower
None of the above

A

Answer – Brake horsepower

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10
Q

A device that meter the fuel air and mixes them into harmonious mixture before the mixture enters the combustion chamber of an engine.

Governor
Air injector
Carburetor
All of the above

A

Answer- Carburetor

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11
Q

A device that permits the flow of fuel and of burned gases in one direction only.

Check valve
Relief valve
Spark plug
None of the above

A

Answer – Check valve

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12
Q

An internal combustion engine that produces power in one revolution of the crankshaft.

Four stroke cycle engine
Two stroke cycle engine
Rotary engine
None of the above

A

Answer – Two stroke cycle

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13
Q

A device that provides ignition to a gasoline engine.

Flywheel
Fuel injector
Carburetor
Spark plug
None of the above
A

Answer – Spark plug

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14
Q

During the power stroke, which of the following valve is open?

Intake
Exhaust
Intake and exhaust
None of the above

A

Answer – None of the above

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15
Q

Number of spark plugs for 6 cylinder diesel engine

6
12
4
None of the above

A

Answer – None of the above (kasi diesel engine ay walang spark plugs)

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16
Q

The volume displaced by a piston in making upward and downward stroke.

Piston displacement volume
Clearance volume
Total volume
None of the above

A

Answer – Piston displacement volume

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17
Q

At the downward stroke of two-stroke cycle, which of the events are taking place.

Power & intake
Compression & exhaust
Power and exhaust
None of the above

A

Answer – None of the above

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18
Q

The ratio of the clearance volume from the total volume.

Compression ratio
Air fuel ratio
Bore stroke ratio
None of the above

A

Answer – Compression Ratio

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19
Q

Power transmitted to the pistons by the gas in the cylinder

Brake horsepower
Indicated horsepower
Drawbar horsepower
Flywheel horsepower

A

Answer – Indicated horsepower

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20
Q

Number of explosion of piston on a single cylinder, four stroke cycle engine in 100 revolution of the crankshaft.

100
50
25
None of the above

A

Answer – 50 explosions

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21
Q

A device that connects and disconnects power input to the power output.

Clutch
Gear
Pulley
None of the above

A

Answer – Clutch

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22
Q

The space when the piston is at the top dead center

Piston displacement volume
Clearance volume
Total volume
None of the above

A

Answer – Clearance volume

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23
Q

How many piston strokes are there in one revolution of a crankshaft.

One
Two
Four
None of the above

A

Answer - Two

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24
Q

Engine having fuel injected into the combustion chamber near the end of the combustion stroke and is ignited by heat of compression only.

Gasoline engine
Diesel engine
Steam engine
None of the above

A

Answer - Diesel

Pag diesel compression

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25
Number of times the exhaust valve opens in 2-stroke cycle engine running at 2000 rpm. 1000 2000 1500 None of the above
Answer – None of the above
26
What is the indicated horsepower, of a four-stroke, six-cylinder engine having a 4” bore and 4” stroke. The engine speed is 1500 rpm and the mean effective pressure is 80 psi. 35 hp 45 hp 52 hp None of the above
Answer – 45 hp
27
The sequence by which the cylinder delivers the power stroke. Ignition Firing order Flash point None of the above
Answer – Firing order
28
Engine that burns fuel outside the cylinder. Spark ignition engine External combustion engine Compression ignition engine None of the above
Answer – External combustion engine
29
At the intake stroke of a diesel engine, what come in? Fuel and air Fuel Air None of the above
Answer - Air
30
A device that creates ignition of fuel in a diesel engine. Spark plug Piston Carburetor None of the above
Answer - Piston
31
Two pistons running at the same time in the same direction but performing different strokes. Running mate Firing order Valve timing None of the above
Answer – Running mate
32
How many times the intake valve opens in 4 stroke-cycle engine running at 2000 rpm. 1000 2000 500 None of the above
Answer – 1000 times
33
Two-stroke six-cylinder-internal-combustion engine has a cylinder bore of 4 inches and a stroke of 4 inches. If the engine is running at a speed of 1500 rpm, what is the indicated horsepower of the engine? The mean effective stroke is 80 psi. 85 hp 92 hp 102 hp None of the above
Answer – 92 hp
34
Firing order of 4-cylinder engine. 1-2-3-4 1-3-4-2 1-2-4-3 None of the above
Answer – 1-3-4-2
35
A device which connects or disconnects engine crankshaft to the transmission box or driven machine. Differential gear Clutch Actuator None of the above
Answer: Clutch
36
Firing order for 6-cylinder engine straight and V-piston. 1-5-3-6-2-4 1-4-2-6-3-5 1-2-3-4-5-6 None of the above
Answer -
37
Firing order for 8-cylinder V piston 1-6-8-4-3-2-7-5 1-8-7-3-6-5-4-2 All of the above None of the above
Answer – All of the above
38
Engine mechanical efficiency. Brake hp over indicated hp Rated hp over indicated hp Friction hp over flywheel hp None of the above
Answer – Brake horsepower over indicated horsepower
39
Number of times the intake valve opens in a single-cylinder four-stroke cycle after completing 200 revolutions. 200 100 50 None of the above
Answer – 100 times
40
What is the mechanical efficiency of an engine having a brake horsepower of 8 hp and an indicated horsepower of 10 hp? ``` 20% 40% 60% 80% None of the above ```
Answer – 80%
41
Part of an engine that converts reciprocating motion into rotary motion. Crankshaft Piston Camshaft None of the above
Answer - Crankshaft
42
Engine system that reduces the temperature of the cylinder. Ignition System Carburetor System Cooling System None of the above
Answer – Cooling System
43
System of number indicating the ignition quality of diesel fuel. Octane rating Cetane rating Fuel index None of the above
Answer – Cetane rating
44
Ten-hp engine is equivalent to 7.46 kw 76.4 watt 0.746 kw None of the above
Answer – 7.46 kW
45
A substance that decreases the effect of friction and which is commonly obtained from petroleum products. Lubricant Gear oil Grease All of the above
Answer – All of the above
46
Gear oil is used for Engine Transmission box Hydraulic system All of the above
Answer – Transmission Box
47
Mean effective pressure for turbo-charge engine. 300 psi 200 psi 400 psi None of the above
Answer – 300 psi
48
Engine valve that allows the entrance of fuel. Exhaust valve Intake valve Check valve None of the above
Answer – Intake valve
49
Standard throttling adjustment of an engine. 1/3 ½ ¾ None of the above
Answer – 3/4
50
Mean effective pressure of an engine. 120 psi 200 psi 50 psi None of the above
Answer – 120 psi
51
Number of pistons for 6 cylinder four stroke gasoline engine. 3 6 9 None of the above
Answer – no piston kasi gasoline sya spark plugs ang meron sya
52
Fuel for compression ignition engine. Gasoline Kerosene LPG Diesel
Answer – diesel
53
A term used to describe the resistance of oil to flow. Viscosity Cetane Number Volume weight None of the above
Answer - Viscosity
54
The speed of the engine is automatically regulated by ______ Hand lever Governor Flywheel None of the above
Answer - Governor
55
Ignition timing for gasoline engine. 1-5 deg 5-10 deg 10-15 deg None of the above
Answer – 5 to 10
56
Ignition timing for diesel engine. 5-12 deg 17-19 deg 20-26 deg None of the above
Answer – 17-19 deg
57
A type of engine that completes power stroke in two revolution of the crankshaft. Four-stroke cycle engine Two-stroke cycle engine All of the above None of the above
Answer – four strokes cycle engine
58
A type of engine that completes power stroke in one revolution of the crankshaft. Four-stroke cycle Two-stroke cycle All of the above None of the above
Answer – two stroke cycle engine
59
An engine that produce more power per unit weight. Four-stroke cycle Two-stroke cycle All of the above None of the above
Answer – two-stroke
60
An engine which uses oil entirely as lubricant. Four-stroke cycle Two-stroke cycle All of the above None of the above
Answer – four stroke cycle
61
One horsepower can generate heat energy equal to 2455 BTU/hr 2545 BTU/hr 2445 BTU/hr None of the above
Answer – 2545 BTU/hr
62
An engine basically has Larger cylinder diameter than piston diameter Equal piston diameter than cylinder diameter Larger piston diameter than cylinder diameter None of the above
Answer: Larger cylinder diameter than piston diameter
63
A part of an engine which reduces vibration and stores energy. Spark plug Flywheel Piston None of the above
Answer - Flywheel
64
If a 4-cylinder, 2-stroke-cycle internal-combustion engine has 600 explosion per minute, what is the engine rpm. 125 rpm 150 rpm 200 rpm None of the above
Answer – 150 rpm
65
The indicated power of an engine is 69 horsepower. The brake horsepower is 54. What is the mechanical of engine efficiency? 69 % 78 % 59 % None of the above
Answer – 78%
66
The brake constant is 2 π R/c 2 π RN 2 π RFn/c None of the above
Answer – 2 π R/c
67
What is the brake constant value of dynamometer whose length of arm is equal to 1m? 0.082 sec/kg 0.82 sec/kg 2.8 sec/kg None of the above
Answer – 0.082 sec/kg
68
If a two-stroke 4-cylinder engine is running at 2000 rpm, the power stroke per minute of the engine is 4000 8000 2000 None of the above
Answer – 2000 strokes per min
69
Power available on human for useful work. 0.1 hp 0.5 hp 0.3 hp None of the above
Answer – 0.1 hp
70
Domesticated animals used as power for agriculture. Dairy animals Draft animals Game animals None of the above
Answer – Draft animals
71
A person is doing a work for 4 hours, what is the power developed by the person? 0.09 hp 0.13 hp 0.15 hp None of the above
Answer – 0.13 hp
72
Conversion of solid into combustible carbon monoxide through thermo-chemical reaction. Digestion Carbonization Gasification Pyrolysis
Answer - Gasification
73
Power generated from moving air. Wind power Hydropower Photovoltaic cell None of the above
Answer - Windpower
74
A gas produces putrefactive bacteria that breaks down organic material under airless condition consisting mainly of methane and carbon dioxide. Biofuel Biogas Gasifier LPG
Answer - biogas
75
Wind is moving at 4 meters per second. If the rotor area is 2 square meters, what is the wind power? 80 watts 125 watts 95 watts None of the above
Answer – 80 watts
76
Average power density of solar heat striking the earth surface. 1 kw/m2 0.89 kw/m2 0.58 kw/m2 None of the above
Answer – 0.89 kW/m2
77
A device that converts kinetic energy of the wind to mechanical power. Rotor Generator Motor None of the above
Answer - Rotor
78
A device that converts electricity to mechanical power. Rotor Generator Motor None of the above
Answer - Motor
79
A device that converts electricity to mechanical power. Rotor Generator Motor None of the above
Answer - Motor
80
A device that converts electricity from sunlight. Windpump Photovoltaic Generator None of the above
Answer - Photovoltaic
81
Wind machine that is used for lifting water. Aeropump Wind turbine WIndpump None of the above
Answer - windpump

Area 1 Eya (7 decks)

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