Technical MCQ & Objective Questions
In today's competitive educational landscape, mastering the "Technical" subject is crucial for students preparing for school and competitive exams. Practicing MCQs and objective questions not only enhances your understanding but also boosts your confidence in tackling important questions during exams. Engaging with practice questions helps solidify concepts, making it easier to score better in assessments.
What You Will Practise Here
Fundamental concepts of mechanics and thermodynamics
Key formulas related to electrical circuits and systems
Definitions of important technical terms and principles
Diagrams illustrating key technical processes and systems
Theory areas covering electronics and communication
Problem-solving techniques for technical applications
Analysis of case studies relevant to technical scenarios
Exam Relevance
The "Technical" subject is a significant component of various examinations, including CBSE, State Boards, NEET, and JEE. Questions often focus on applying theoretical knowledge to practical situations, with common patterns including multiple-choice questions that test both conceptual understanding and problem-solving skills. Familiarity with these patterns through practice can greatly enhance your exam performance.
Common Mistakes Students Make
Misinterpreting technical terms and definitions
Overlooking the importance of units and conversions in calculations
Failing to apply theoretical concepts to practical problems
Rushing through diagrams without understanding their significance
FAQs
Question: How can I improve my performance in Technical MCQs?Answer: Regular practice with objective questions and understanding the underlying concepts will significantly enhance your performance.
Question: Are there specific resources for Technical objective questions with answers?Answer: Yes, many educational platforms, including SoulShift, provide curated practice questions tailored for exam preparation.
Don't wait any longer! Start solving practice MCQs today to test your understanding and prepare effectively for your exams. Your success in mastering "Technical" concepts is just a question away!
Q. In a combinational circuit, what is the primary function of multiplexers?
A.
To perform arithmetic operations
B.
To select one of many inputs
C.
To store data
D.
To invert signals
Show solution
Solution
Multiplexers are used to select one of many input signals and forward the selected input to a single output line.
Correct Answer:
B
— To select one of many inputs
Learn More →
Q. In a combinational logic circuit, what is the primary function of multiplexers?
A.
To perform arithmetic operations
B.
To select one of many inputs
C.
To store data
D.
To invert signals
Show solution
Solution
Multiplexers are used to select one of many input signals and forward the selected input to a single output line.
Correct Answer:
B
— To select one of many inputs
Learn More →
Q. In a common emitter BJT configuration, what is the phase relationship between the input and output signals?
A.
In phase
B.
Out of phase
C.
No phase relationship
D.
Dependent on frequency
Show solution
Solution
In a common emitter configuration, the output signal is inverted, meaning it is out of phase with the input.
Correct Answer:
B
— Out of phase
Learn More →
Q. In a common-emitter BJT configuration, what is the phase relationship between input and output?
A.
In phase
B.
Out of phase
C.
No phase relationship
D.
Dependent on frequency
Show solution
Solution
In a common-emitter configuration, the output is 180 degrees out of phase with the input.
Correct Answer:
B
— Out of phase
Learn More →
Q. In a common-source FET amplifier configuration, what is the phase relationship between the input and output signals?
A.
In phase
B.
Out of phase
C.
No phase relationship
D.
Dependent on frequency
Show solution
Solution
In a common-source configuration, the output signal is inverted, meaning it is out of phase with the input signal.
Correct Answer:
B
— Out of phase
Learn More →
Q. In a comparator circuit, what happens when the non-inverting input voltage exceeds the inverting input voltage?
A.
The output goes low
B.
The output goes high
C.
The output remains unchanged
D.
The output oscillates
Show solution
Solution
When the non-inverting input voltage exceeds the inverting input voltage, the output of the comparator goes high.
Correct Answer:
B
— The output goes high
Learn More →
Q. In a database, what does a 'foreign key' do?
A.
Links two tables together
B.
Identifies a unique record
C.
Stores large amounts of data
D.
Indexes a table for faster access
Show solution
Solution
A foreign key links two tables together by referencing the primary key of another table.
Correct Answer:
A
— Links two tables together
Learn More →
Q. In a database, what does ACID stand for?
A.
Atomicity, Consistency, Isolation, Durability
B.
Atomicity, Concurrency, Integrity, Durability
C.
Atomicity, Consistency, Isolation, Data integrity
D.
Atomicity, Consistency, Isolation, Distribution
Show solution
Solution
ACID stands for Atomicity, Consistency, Isolation, and Durability, which are the key properties of transactions in a database.
Correct Answer:
A
— Atomicity, Consistency, Isolation, Durability
Learn More →
Q. In a DBMS architecture, what does the term 'data independence' refer to?
A.
The ability to change the data structure without affecting the application
B.
The ability to access data from multiple sources
C.
The ability to store data in different formats
D.
The ability to secure data from unauthorized access
Show solution
Solution
Data independence refers to the ability to change the data structure without affecting the applications that use the data.
Correct Answer:
A
— The ability to change the data structure without affecting the application
Learn More →
Q. In a differential amplifier configuration, what does the operational amplifier amplify?
A.
The average of the input signals
B.
The difference between the input signals
C.
The sum of the input signals
D.
The square of the input signals
Show solution
Solution
A differential amplifier configuration amplifies the difference between the input signals.
Correct Answer:
B
— The difference between the input signals
Learn More →
Q. In a differential amplifier configuration, what is the output voltage proportional to?
A.
The difference between two input voltages
B.
The sum of two input voltages
C.
The average of two input voltages
D.
The product of two input voltages
Show solution
Solution
In a differential amplifier configuration, the output voltage is proportional to the difference between two input voltages.
Correct Answer:
A
— The difference between two input voltages
Learn More →
Q. In a differential amplifier, what is the significance of the resistor values?
A.
They determine the input impedance
B.
They set the common-mode gain
C.
They affect the differential gain
D.
They stabilize the output voltage
Show solution
Solution
In a differential amplifier, the resistor values directly affect the differential gain, which is the ratio of the output voltage to the difference between the input voltages.
Correct Answer:
C
— They affect the differential gain
Learn More →
Q. In a discrete-time signal, what does the term 'aliasing' refer to?
A.
Loss of signal strength
B.
Distortion of the signal due to insufficient sampling
C.
The process of filtering a signal
D.
The conversion of a signal from analog to digital
Show solution
Solution
Aliasing occurs when a signal is sampled at a rate lower than twice its highest frequency, causing different signals to become indistinguishable.
Correct Answer:
B
— Distortion of the signal due to insufficient sampling
Learn More →
Q. In a distributed database, what is the purpose of data replication?
A.
To ensure data consistency across all nodes
B.
To reduce the size of the database
C.
To increase the complexity of the system
D.
To eliminate the need for backups
Show solution
Solution
Data replication in a distributed database ensures data consistency across all nodes by maintaining copies of the same data in multiple locations.
Correct Answer:
A
— To ensure data consistency across all nodes
Learn More →
Q. In a FET, what does the gate voltage control?
A.
The drain current
B.
The source voltage
C.
The gate current
D.
The output power
Show solution
Solution
In a FET, the gate voltage controls the drain current, allowing for modulation of the current flow.
Correct Answer:
A
— The drain current
Learn More →
Q. In a first-order RC circuit, what happens to the voltage across the capacitor after 5 time constants?
A.
It is at 100% of V0
B.
It is at 63.2% of V0
C.
It is at 86.5% of V0
D.
It is at 50% of V0
Show solution
Solution
After 5 time constants, the voltage across the capacitor in a first-order RC circuit is effectively at 100% of the supply voltage V0.
Correct Answer:
A
— It is at 100% of V0
Learn More →
Q. In a full adder, how many inputs does it have?
Show solution
Solution
A full adder has three inputs: two significant bits and one carry-in bit.
Correct Answer:
C
— 3
Learn More →
Q. In a half adder, what does the sum output represent?
A.
Carry out
B.
Logical AND
C.
Logical OR
D.
XOR of inputs
Show solution
Solution
The sum output of a half adder represents the XOR of the two input bits.
Correct Answer:
D
— XOR of inputs
Learn More →
Q. In a half-wave rectifier, what happens to the negative half of the AC signal?
A.
It is amplified
B.
It is blocked
C.
It is inverted
D.
It is passed through
Show solution
Solution
In a half-wave rectifier, the negative half of the AC signal is blocked by the diode.
Correct Answer:
B
— It is blocked
Learn More →
Q. In a JFET, what is the effect of increasing the gate-source voltage (Vgs)?
A.
Increases the drain current
B.
Decreases the drain current
C.
Has no effect on the drain current
D.
Increases the gate current
Show solution
Solution
Increasing the gate-source voltage (Vgs) in a JFET decreases the drain current due to the depletion region widening.
Correct Answer:
B
— Decreases the drain current
Learn More →
Q. In a monostable 555 timer circuit, what happens when the trigger pin is activated?
A.
The output goes high for a short duration
B.
The output remains low
C.
The output oscillates
D.
The timer resets
Show solution
Solution
When the trigger pin is activated, the output of a monostable 555 timer goes high for a short duration.
Correct Answer:
A
— The output goes high for a short duration
Learn More →
Q. In a monostable 555 timer, what determines the duration of the output pulse?
A.
The supply voltage
B.
The value of the timing resistor and capacitor
C.
The trigger signal duration
D.
The output load
Show solution
Solution
The duration of the output pulse in a monostable 555 timer is determined by the values of the timing resistor and capacitor.
Correct Answer:
B
— The value of the timing resistor and capacitor
Learn More →
Q. In a MOSFET, what does the term 'threshold voltage' refer to?
A.
The maximum voltage the device can handle
B.
The voltage at which the device turns off
C.
The minimum gate voltage required to create a conducting channel
D.
The voltage drop across the drain-source terminals
Show solution
Solution
The threshold voltage is the minimum gate voltage required to create a conducting channel in a MOSFET.
Correct Answer:
C
— The minimum gate voltage required to create a conducting channel
Learn More →
Q. In a multiplexer, what is the role of the select lines?
A.
To determine the output based on input values
B.
To store data
C.
To provide power
D.
To control timing
Show solution
Solution
Select lines in a multiplexer determine which input line is connected to the output.
Correct Answer:
A
— To determine the output based on input values
Learn More →
Q. In a multiuser database environment, what is a deadlock?
A.
A situation where two transactions are waiting for each other to release locks
B.
A method of data encryption
C.
A type of database backup
D.
A way to optimize queries
Show solution
Solution
A deadlock occurs when two transactions are waiting for each other to release locks, preventing both from proceeding.
Correct Answer:
A
— A situation where two transactions are waiting for each other to release locks
Learn More →
Q. In a multiuser database environment, what is a potential problem that can arise?
A.
Data redundancy
B.
Data inconsistency
C.
Data isolation
D.
Data normalization
Show solution
Solution
Data inconsistency can arise in a multiuser database environment when multiple users update the same data simultaneously.
Correct Answer:
B
— Data inconsistency
Learn More →
Q. In a multiuser database environment, what is the role of a DBMS?
A.
To manage user interfaces
B.
To provide data storage and retrieval services
C.
To perform data analysis
D.
To create reports
Show solution
Solution
The primary role of a DBMS in a multiuser environment is to manage data storage and retrieval services efficiently.
Correct Answer:
B
— To provide data storage and retrieval services
Learn More →
Q. In a non-inverting op-amp configuration, what is the relationship between the input and output voltages?
A.
Vout = Vin
B.
Vout = Vin + Vref
C.
Vout = Vin * (1 + Rf/Rin)
D.
Vout = Vin / (1 + Rf/Rin)
Show solution
Solution
In a non-inverting op-amp configuration, the output voltage is given by Vout = Vin * (1 + Rf/Rin).
Correct Answer:
C
— Vout = Vin * (1 + Rf/Rin)
Learn More →
Q. In a non-inverting op-amp configuration, what is the relationship between the input and output voltage?
A.
Vout = Vin
B.
Vout = Vin + Vref
C.
Vout = Vin * (1 + Rf/Rin)
D.
Vout = Vin / (1 + Rf/Rin)
Show solution
Solution
In a non-inverting configuration, the output voltage is given by Vout = Vin * (1 + Rf/Rin).
Correct Answer:
C
— Vout = Vin * (1 + Rf/Rin)
Learn More →
Q. In a parallel circuit with a diode, if the diode is forward-biased, it will:
A.
Block current
B.
Allow current to flow
C.
Short-circuit the circuit
D.
Increase the total resistance
Show solution
Solution
A forward-biased diode allows current to flow through it, affecting the overall current in the parallel circuit.
Correct Answer:
B
— Allow current to flow
Learn More →
Showing 61 to 90 of 1509 (51 Pages)
