Part 7 Flashcards
It is the filling up of water in the pump to evacuate the entrapped air through a vent and create a liquid seal inside the casing.
Feeding
Recharging
Priming
None of the above
Answer - Priming
The cylinder diameter of mechanical rice thresher is measured distance from _____?
The base of the threshing element passing through the shaft axis
The tip of the threshing element passing through the shaft axis
The outlet of the cylinder cover
None of the above
Answer - The tip of the threshing element passing through the shaft axis
The maximum moisture content of the grain to be used for testing mechanical thresher should be more than ____.
18 %
24 %
28 %
None of the above
Answer: 24 %
The grain straw ratio for samples to be used for testing rice thresher should not at a ranged of _____.
0.35 to 5.0
0.50 to 0.65
0.65 to 0.85
None of the above
Answer: 0.50 to 0.65
The minimum number of hours required in testing the rice thresher based on PAES is
0.5 hour
1 hour
2 hours
None of the above
Answer: 2 hours
When do you want to diagnose ignition and other electrical problems of an engine, a typical instrument to be used is
Compression tester
Oscilloscope
Dynamometer
None of the above
Answer: Oscilloscope
Engine power performance is measured using
Compression tester
Oscilloscope
Dynamometer
None of the above
Answer: Dynamometer
It is the device used to measure the state of battery charge of an engine.
Tachometer
Hydrometer
Ohmmeter
None of the above
Answer: Hydrometer
Gasoline engine power output can be increased by
Increasing the compression ratio
Increasing the fuel feeding
Reducing the load of the engine
None of the above
Answer: Increasing the compression ratio
A small mechanical blower installed in an engine to increase power output by forcing fuel charge under pressure in the cylinder.
Super charger
Soot blower
High pressure blower
None of the above
Answer: Super charger
It is a measure of the area in cubic inches above the piston when it is at a top of its stroke, compared to the area above the piston when it is at a bottom stroke.
Piston displacement
Compression ratio
Clearance volume
None of the above
Answer: Compression ratio
The compression ratio of an engine can be increased by
Installing connecting rod of greater length
Installing high dome piston
Installing crankshaft which has a crank pin throw of greater length
None of the above
Answer: None of the above
Air-fuel ratio for combustion for gasoline engine.
10 to 1
15 to 1
20 to 1
None of the above
Answer: None of the above
Air-fuel ratio of an engine under idling condition.
11 – 12.5 to 1
12.5 – 13.5 to 1
13.5 – 17.5 to 1
None of the above
Answer: 11 – 12.5 to 1
Air-fuel ratio of engine at full load
11 – 12.5 to 1
12.5 – 13.5 to 1
13.5 – 17.5 to 1
None of the above
Answer: 12.5 – 13.5 to 1
Premature explosion in the cylinder of a gasoline engine during the exhaust stroke.
Backlash
Backfire
Back pressure
None of the above
Answer: Backfire
A switching device of high voltage current in multiple cylinder engine which breaks primarily and secondary circuits.
Distributor
Contact point
Relay
None of the above
Answer: Distributor
It refers to any ring or washer providing a packing or seal between metal surface of an engine.
Oil ring
Grease
Gasket
None of the above
Answer: Gasket
It is the setting to give high voltage current to the spark plug in relation to the movement and position of the piston.
Idling
Ignition timing
Engine timing
None of the above
Answer: Ignition timing
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