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MCQ Questions for CBSE Class 12 with Answers
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Maintenance & Testing of Electrical Equipments Gate & PSU MCQ...
1.
Which task should be part of a hardware maintenance routine?
Review security updates.
Update virus definition files.
Adjust the monitor for optimum resolution.
Check for and secure any loose cables.
2.
What is part of creating a preventive maintenance plan?
documenting the details and frequency of each maintenance task
performing hardware upgrades
discarding all replaced parts
performing a forensic audit of security breaches
3.
CLAMP METER is allows measurement of the current in a conductor without the need to make physical contact with it, or to disconnect it for insertion through the probe.
True
False
4.
All are belong to the electrical testing equipment except,
Voltmeter
Ammeter
Thermometer
Wattmeter
5.
A device that measures the amount of electric energy consumed by a residence, a business, or an electrically powered device.
Watt meter
Ammeter
Clamp Meter
Energy Meter
6.
An electrical device with jaws which open to allow clamping around an electrical conductor.
Multimeter
Wattmeter
Clamp Meter
Voltmeter
7.
OSCILLOSCOPE is used for converting non electrical signals such as vibration or sound into voltages and then displays the results.
True
False
8.
A user reports that images on a computer display are distorted. The technician sends an intern to look at the problem. What could the technician tell the intern to check first that does not involve hardware replacement or disassembly?
display settings
LCD backlight adjustment
work desk stability
electrical interference
9.
ELECTROMAGNETIC WATTMETERS are used for measurement of utility frequency and audio frequency power, other types are required for radio frequency measurements.
True
False
10.
Current clamps are typically used to read the magnitude of DIRECT CURRENT and, with additional instrumentation, the phase and waveform can also be measured.
True
False
11.
A basic electronic device or instrument used to measure voltage or electrical potential difference between two points in electrical circuits is known as,
Voltmeter
Ammeter
Wattmeter
Clamp meter
12.
An employee reports that the antivirus software cannot obtain updates. The support technician notices that the license for the software has expired. The technician adds a new license to the software and completes the update service. What should the technician do next?
Record the new license number in the log.
Download advanced antivirus software from another vendor.
Run a full virus scan on the computer.
Review the Event Viewer for the date and time that the last software update was performed.
13.
An electronic instrument used to measure the three basic electrical characteristics: voltage, current & resistance.
Power meter
Voltmeter
Wattmeter
Multimeter
14.
The testing equipment used to detect faults in the operation of electrical devices by creating stimulus signals and capture responses from electrical devices under test is known as Electrical Test Equipment.
True
False
15.
An electrical instrument that measures electrical resistance is known as,
Resistance reading
Ohmmeter
Ammeter
Wattmeter
16.
Which are belongs to the different types of ammeters.
Moving-coil
Moving magnet
Moving iron
All of the above
17.
An instrument for measuring the electrical power in watts of any given circuit.
Ammeter
Voltmeter
Wattmeter
Clamp Meter
18.
Which of the following is NOT a purpose of documenting the information that is obtained from the customer in the work order?
to create a centralized database of possible problems with solutions
to use the information for marketing purposes
to keep track of parts that are ordered
to use the information to aid in solving the problem
19.
A measuring instrument which is used to measure the electric current in a circuit is known,
Voltmeter
Ammeter
Wattmeter
Resistance reading
20.
An employee reports that each time a workstation is started it locks up after about 5 minutes of use. What is the most likely cause of the problem?
The hard disk is failing.
The RAM is malfunctioning.
The CPU experiences overheating.
The power supply fails to provide adequate voltage and current.
21.
A type of voltmeter measures an unknown input voltage by converting the voltage to a digital value by using a converter and then displays the voltage in numeric form.
Digital Voltmeter
Analog Voltmeter
22.
During the process of testing a theory of several probable causes to a problem, which should be tested first?
the easiest and most obvious
those chosen by random selection
the most complex and difficult to diagnose
those the customer believes to be the most important
23.
An electronic test instrument that constantly observes varying voltage signals as a two dimensional plot of one or more signals as a function of time.
Oscilloscope
Megger Meter
Ohmmeter
On of the above
24.
After a new PCIe video card is added, the computer seems to boot successfully but it will not display any video. The computer was working properly before the new video card was installed. What is the most likely cause of the problem?
The monitor cable is faulty.
The saved CMOS settings are set to use the built-in video adapter.
The PC does not have enough RAM to support the new video card.
The new video card is not compatible with the CPU in the PC.
25.
A web designer installed the latest video editing software and now notices that when the application loads, it responds slowly. Also the hard disk LED is constantly flashing when the application is in use. What is a solution to solve the performance problem?
replacing the hard disk with a faster model
upgrading to a faster CPU
replacing the video card with a model that has a DVI output
adding more RAM
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