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WorksheetsCâu Hỏi Trắc Nghiệm Tàu Điện Mỏ
Total questions: 60
Worksheet time: 33mins
When the electric train is working, if the wheel slips, the operator must:
shift the main gear to '1' and use the sand system.
shift the reverse gear to 'O' and then shift the main gear.
shift the main gear to 'maximum' and use the sand system.
shift the main gear to 'maximum' and use the brake system.
Before operating the electric train, the operator must check:
oil, grease.
battery, control unit.
engine, signals, brakes.
mechanical part, electrical part.
When the battery train is running in normal working mode, to stop the train, just:
shift the main gear to 'O' and use the mechanical brake.
reverse brake, mechanical brake.
shift the reverse gear to 'O' and use the mechanical brake.
shift the main gear to 'O' and use the electric brake.
When wanting to change the working direction of the electric train, the operator must:
shift the main gear to 'O' and then shift the reverse gear.
turn the reverse gear to 'O' and then shift the main gear.
simultaneously turn the reverse gear and the main gear.
brake, turn the main gear to 'O'.
When the electric train is working, if the wheel slips, the operator must:
shift the main gear to '1' and use the sand system.
shift the reverse gear to 'O' and then shift the main gear.
shift the main gear to 'maximum' and use the sand system.
shift the main gear to 'maximum'.
When the electric train is working normally, the operator wants to stop the train using the mechanical brake but is prohibited from:
using the reverse gear.
cutting off the power supply.
simultaneously using the mechanical brake and electric brake.
using the brake before shifting the main gear to 'O'.
When adjusting the mechanical brake of the electric train, the number of steering wheel turns to brake the train safely is:
2 to 2.5 turns.
2.5 to 3 turns.
less than 1.5 to 2 turns.
1 to 1.5 turns.
How many batteries does the CDXT-5 electric train have?
46
48
47
49
How many motors does the CDXT-5 electric train have?
1
3
2
4
The CDXT-5 electric train is used in the underground mine for transporting:
coal, rocks, ore.
materials, people.
ore, rocks, people.
coal, rocks, ore, materials, people.
The CDXT-5 electric train uses a power source:
AC 220V
DC 275V
AC 380V
DC 96V
The CDXT-5 electric train uses brakes:
electric.
mechanical.
pneumatic.
hydraulic.
The moving part of the CDXT-5 electric train includes:
Reduction box, electric motor, wheel.
Reduction box, electric motor, rail wheel.
Reduction box,
The moving part of the battery electric train CDXT-5 includes:
Reduction box, electric motor, tire.
Reduction box, electric motor, rail wheel.
Reduction box, electric motor, track wheel.
Reduction box, pneumatic motor, rail wheel.
The electric motor of the battery electric train CDXT-5 is a type of direct current excitation motor:
Parallel.
Series.
Mixed.
Independent.
The battery electric train CDXT-5 is protected by:
Fuse.
ABP circuit breaker.
Thermal relay.
Voltage drop relay.
When operating at rated mode, how are the power supply and two motors connected?
Power supply in series, motor in parallel.
Power supply in series, motor in series.
Motor in parallel, power supply in series.
Power supply in parallel, motor in series.
When the control lever on the main tang is switched to number 3, which contacts will close for the battery electric train CDXT-5?
1,3,4,6
1,3,5,6
1,4,5,6
1,5,6,7
When the control lever on the main tang is switched to number 5, which contacts will close for the battery electric train CDXT-5?
1,3,4,5,6,7,8
1,3,4,5,7
1,4,5,6,7
1,3,4,5,7,8,9
When the control lever on the main tang is switched to number 6, the speed of the battery electric train CDXT-5 is:
Slowest.
Fastest.
Not running.
Normal.
The controller of the battery electric train CDXT-5 is used to:
Change speed, reverse the direction of the train.
Change speed, electric brake.
Electric brake, reverse the direction of the train.
Change speed, electric brake, reverse the direction of the train.
The electrical part of the battery electric train CDXT-5 includes:
Reversing tang, electric motor, battery box.
Controller, electric motor, battery box, resistor, lighting.
Controller, electric motor, power take-off.
Main tang, electric motor, battery box.
The battery electric train CDXT-5 uses a reduction box …
Two levels.
Three levels.
Five levels.
Four levels.
In the schematic diagram of the battery electric train CDXT-5, 1ZD and 2ZD are:
Lighting.
Motor.
Resistor.
Capacitor.
In the schematic diagram of the battery electric train CDXT-5, 1D is:
Lighting.
Motor.
Resistor.
Capacitor.
When contacts 1,3,4,6,10,14,11,15 close, the two motors of the battery electric train CDXT-5 are working in mode:
Motors in series, power supply in parallel.
Motors in parallel, power supply in series.
Motors in parallel, power supply in parallel.
Motors in series, power supply in series.
When contacts 1,3,4,5,7,10,14,11,15 close, the two motors of the battery electric train CDXT-5 are working in mode:
Motors in series, power supply in parallel.
Motors in parallel, power supply in series.
Motors in parallel, power supply in parallel.
Motors in series, power supply in series.
The adhesion weight of the battery electric train CDXT-5 is:
5 tons.
3 tons.
4.5 tons.
8 tons.
The pulling force of the battery electric train CDXT-5 is:
6.82 KN.
7.24 KN.
6.68 KN.
7.48 KN.
The battery electric train CDXT-5 uses a motor with a power of how much:
5 kW.
7.5 kW.
What is the power of the battery-powered electric train CDXT-5?
5 kW
7.5 kW
5.5 kW
7 kW
The details 2,3,5 are respectively:
reversing gear, brake steering wheel, battery
controller, driver's seat, battery
controller, brake steering wheel, battery
reversing gear, driver's seat, battery
What is the distance between the two wheels of the battery-powered electric train CDXT-5?
900mm
800mm
950mm
850mm
The details 8,9,10 are respectively:
cockpit, driver's seat, lighting
cockpit, lighting, driver's seat
driver's seat, cockpit, cockpit
driver's seat, cockpit, cockpit
When contact 2 is closed, contacts 1 and 3 are open, what is the voltage of the power supply of the electric train CDXT-5?
U = 96V
U = 48V
U = 275V
U = 220V
What is the method for adjusting the speed of the electric train CDXT-5?
Change resistance, voltage.
Change voltage, resistance, magnetic flux.
Change resistance, magnetic flux.
Change resistance, magnetic flux, current.
What does the controller of the electric train CDXT-5 consist of?
9 main contact points, 8 reversing contact points.
8 main contact points, 9 reversing contact points.
17 main contact points, 8 reversing contact points.
9 main contact points, 17 reversing contact points.
When contacts 7 and 5 are closed, and 6 is open, what mode are the two motors of the battery-powered electric train CDXT-5 working in?
Both motors work in parallel.
Only motor number 1 works.
Both motors work in series.
Only motor number 2 works.
What is the rated voltage of the rectifier cabinet ZBC 90/280?
250V
260V
270V
280V
What is the input frequency of the rectifier cabinet ZBC 90/280?
50Hz
60Hz
220Hz
45Hz
The rectifier cabinet ZBC 90/280 is used to charge...
the battery of the electric train.
the electric train with a parrot.
the rectifier of the electric train.
the transformer of the battery-powered electric train.
How does the rectifier cabinet ZBC 90/280 cool?
water.
cooling oil.
fan.
heat sink.
What are the charging current and voltage adjustment modes of the rectifier cabinet ZBC 90/280?
remotely.
on-site.
manual and automatic.
continuously.
What is the input voltage of the rectifier cabinet ZBC 90/280?
127V/220V
220V/380V
380V/660V
660V/1140V
What is the output frequency of the rectifier cabinet ZBC 90/280?
50 Hz
60Hz
0 Hz
75 Hz
What is the rated current of the rectifier cabinet ZBC 90/280?
70A
80A
90A
100A
The voltage of the charging source is ... times the voltage of the battery:
< 1.4
> 1.5
= 1.5
> 1.6
Proceed to charge the battery of the battery-powered electric train CDXT-5:
What is the connection of the positive terminal of the CDXT-5 battery?
Connect the positive terminal of the battery to the positive terminal of the cabinet, and the negative terminal of the battery to the negative terminal of the cabinet.
Connect the positive terminal of the battery to the amplifier, and the negative terminal of the battery to the negative terminal of the cabinet.
Connect the positive terminal of the battery to the positive terminal of the cabinet, and the negative terminal of the battery to the voltage coil.
Connect the positive terminal of the battery to the amplifier, and the negative terminal of the battery to the voltage coil.
The battery of the electric train is a component used to store energy:
Provide direct current for the electric train motor.
Provide alternating current for the electric train motor.
Increase the adhesive weight for the train.
Adhere to the train, providing electricity for the electric train motor.
The battery used for electric trains is of the type:
Alkaline.
Acid.
Acid, alkaline.
Basic oxide.
The battery used for electric trains has basic components:
Negative plate, positive plate, shell, insulating plate between the plates.
Negative plate, positive plate, bottom, shell.
Negative plate, positive plate, shell, alkaline solution.
Negative plate, positive plate, shell, acid solution.
The method of charging the electric train battery:
Continuous charging, intermittent charging.
Intermittent charging, cyclic charging.
Continuous charging, cyclic charging.
Cyclic charging, solution charging.
How many continuous cycles does a new electric train battery or a battery after repair need to be charged?
1 to 2
2 to 3
3 to 4
4 to 5
The continuous charging method for batteries is:
Constant charging current, with breaks in between.
Constant charging current, with no breaks in between.
Constant charging voltage, with no breaks in between.
Variable charging current, with no breaks in between.
The intermittent charging method for batteries is a method where the charging current can change with breaks in one cycle, but the total time of the stages ... the specified time of one cycle.
equals
must be greater than
must be less than
must be less than or equal to
The power of the charging source must be greater than ... times the power of the battery.
1.2
1.3
1.4
1.5
To ensure the rated voltage supplied to the electric train motor battery, connect:
Many batteries in series to form a set.
Many batteries in parallel to form a set.
A mixture of many batteries to form a set.
Many types of batteries to form a set.
When preparing the solution to pour into the battery, one must:
Pour water into the solution and then pour it into the battery.
Pour the solution into the water and then pour it into the battery.
Pour both the solution and water into the battery at the same time.
Pour water into the battery and then pour the solution into it.
Before allowing the electric train to run, the operator must carefully observe the surroundings and do what to ensure safety?
Signal.
Start the train.
Release the mechanical brake.
Let the train run.
