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WorksheetsProject Technical Electronics Hardware & Embedded System
Total questions: 50
Worksheet time: 25mins
1.Which instrument is commonly used to measure electrical resistance?
Oscilloscope
Spectrum Analyzer
Multimeter
Power Supply
2.What is the purpose of a heat sink in electronic circuits?
To increase circuit speed
To dissipate excess heat from components
To store electrical energy
To act as a fuse
3.The Unit of Resistance, Inductance ,Capacitance and Electric Current respectively are ?
Ohm,Henry,Farad and Ampere
Henry,Farad,Ampere and Resistance
Resistivity,Henry,Capacitance and Ampere
Ohm,Tesla,Farad and Ampere
4.What is a good tempreture for Soldering ?
200°C - 350 °C
75°C - 150 °C
450°C-800°C
10°C-25°C
5.which of these can be used as a switch ?
Diode
Bipolar Junction Transistor
Resistor
Capacitor
6.Full form of LDR is
Light Diode Resistor
Light Dependent Resistor
Light Defined Resistor
Light Dielectric Resistor
7.Multimeter can be used to measeure
AC Voltage and Current
DC Voltage and Current
Resistance
All of these
8.What is the function of a desoldering pump?
To heat up solder
To remove excess solder from joints
To apply solder paste
To clean flux residue
9.What does an oscilloscope primarily measure?
Time Domain Voltage waveforms
Temperature
Resistance
Inductance
10.What happens if a multimeter is set to the current mode and placed across a voltage source?
It measures voltage correctly
It creates a short circuit and may damage the mete
It measures resistance
It shows zero reading
11.What is the function of the trigger control in an oscilloscope?
Adjusting voltage range
Adjusting the display brightness
Stabilizing repeating waveforms for clear display
Measuring power consumption
12.What does the time base control on an oscilloscope adjust?
The amplitude of the waveform
The horizontal scaling of the time axis
The frequency of the signal
The power supply voltage
13.What is the function of a rectifier?
Convert AC to DC
Convert DC to AC
Regulate voltage
Increase signal strength
14.What does LED stand for?
Light Emitting Display
Light Emitting Diode
Long Emitting Diode
Low Energy Device
15.What is the full form of PCB?
Printed Circuit Board
Printed Copper Board
Printed Circuit Base
Power Circuit Board
16.What does AC stand for in electrical terms?
Alternating Current
Ampere Current
Anode Current
Active Current
17.Which device is used to step up or step down voltage levels?
Capacitor
Resistor
Transformer
Transistor
18.What is the main function of a fuse in a circuit?
Protect against overcurrent
Enhance current flow
Increase voltage levels
Convert AC to DC
19.Which component stores energy in a magnetic field?
Capacitor
Inductor
Diode
Transistor
20.V = IR is derived from which law ?
Ohm's Law
Kirchhoff’s Law
Faraday’s Law
Newton’s Law
21.Which of these materials is a good conductor of electricity?
Rubber
Wood
Plastic
Copper
22.What is the function of a battery in a circuit?
Stores energy
Reduces voltage
Provides electrical energy
Stops electricity
23.What is the function of a switch in a circuit?
Stores energy
Breaks or connects the circuit
Increases current
Slows down current
24.Which of this software can be used to create a word document ?
MS Word
Visual Basic
Auto CAD
MS power point
25.Which of this device is not an IC
555 Timer
LM741
LM358
LED Bulb
26.Which of these consume most electrical power ?
100 W Bulb
150 W Fan
2 KW Heater
20 W LED
27.which of these can used for data storage ?
HardDisk
Keyboard
Printer
Mouse
28.What is the full for of IC ?
Integerated Chip
Integerated Circuit
Inter Connect
Internal Circuit
29.Select the largest value of Current ?
0.01 milli Ampere
100 pico Ampere
100 nano ampere
10000 micro ampere
30.What is the primary goal of laboratory management?
Increasing staff workload
Ensuring efficiency, accuracy, and safety
Reducing laboratory personnel
Avoiding documentation
31.Which of the following is NOT a key aspect of lab management?
Personnel training
Budgeting and cost control
Ignoring safety protocols
Equipment maintenance
32.What is the role of a laboratory manager?
Only performing experiments
Overseeing daily operations, safety, and compliance
Avoiding lab inspections
Purchasing unnecessary equipment
33.Which of these factors is critical for lab productivity?
Disorganized workspace
Efficient workflow management
Lack of training
Avoiding safety procedures
34.What is the purpose of a standard operating procedure (SOP) in a lab?
To provide step-by-step guidelines for performing tasks correctly
To increase paperwork only
To replace all forms of lab training
To make work more complicated
35.What should be done if an equipment failure occurs?
Ignore it and continue using it
Report it and follow maintenance protocols
Discard the equipment without checking
Use makeshift repairs without approval
36.What is the recommended method to dispose of electronic waste (e-waste) in a laboratory?
Throw it in a regular trash bin
Burn it in an open area
Follow e-waste recycling protocols
Store it indefinitely in the lab
37.How often should safety training be conducted in a laboratory?
Only when a new employee joins
Annually or as needed based on risks
Never, once trained it's enough
Only during inspections
38.What is the best way to prevent cross-contamination in a lab?
Using shared containers for different samples
Cleaning workspaces and tools regularly
Ignoring hygiene practices
Mixing chemicals to save storage space
39.Why is risk assessment important in lab management?
To delay research activities
To identify and mitigate hazards before they cause accidents
To create unnecessary work for employees
To avoid using safety equipment
40.What is the main purpose of laboratory inventory management?
Keeping track of equipment and supplies for efficient lab operation
Increasing costs by ordering excess materials
Storing chemicals without proper labeling
Ordering supplies randomly
41.What is the best way to manage laboratory reagents efficiently?
Storing them without any labeling
Keeping an up-to-date inventory log
Ordering only when stock runs out completely
Mixing similar-looking chemicals to save space
42.What is a good practice for handling perishable laboratory supplies?
Using first-in, first-out (FIFO) system
Ignoring expiry dates
Storing everything in the same condition
Not tracking stock levels
43.What is an MSDS (Material Safety Data Sheet)?
A document that provides safety information about chemicals
A sheet for ordering supplies
A certificate of instrument calibration
A type of experiment log
44.Which of the following is NOT a good inventory management practice?
Conducting regular stock checks
Labeling chemicals and reagents properly
Ordering excessive quantities without planning
Keeping track of expiration dates
45.What is a barcoding system used for in inventory management?
Tracking and organizing lab inventory efficiently
Making lab work more complicated
Increasing manual data entry errors
Replacing safety procedures
46.Why is it important to maintain an inventory database?
To ensure accurate stock tracking and reduce waste
To add unnecessary administrative work
To keep supplies hidden from others
To increase laboratory costs
47.How can labs reduce waste in inventory management?
Ordering only what is needed and following proper storage practices
Discarding materials frequently
Keeping expired chemicals for future use
Ignoring stock control
48.What is the best way to ensure hazardous materials are stored properly?
Following safety guidelines and using proper storage containers
Storing them randomly with other materials
Keeping them in any available container
Ignoring safety data sheets
49.How often should inventory records be updated?
Only once a year
Whenever a material is used, received, or disposed of
Never, once recorded it stays the same
Only during external audits
50.What is the main purpose of laboratory documentation?
Ensuring traceability, compliance, and accuracy in lab operations
Increasing paperwork without benefits
Making lab tasks more difficult
Avoiding responsibility for results
