Wipro Digital
10+ Peddlr Philippines Interview Questions and Answers
Q1. What are the difgerent wavelengths at which optical fibre communication takes place and Which gives the better performance and Why?
Optical fibre communication takes place at different wavelengths, with some providing better performance than others.
Optical fibre communication can take place at various wavelengths, including 850 nm, 1310 nm, and 1550 nm.
The 850 nm wavelength is commonly used for short-distance communication, such as within buildings or data centers.
The 1310 nm wavelength is often used for medium-distance communication, such as metropolitan area networks.
The 1550 nm wavelength is typically ...read more
Q2. What are timers im Microprocessor amd how can you trigger them?
Timers in microprocessors are hardware components that measure and control time intervals. They can be triggered by external events or programmed instructions.
Timers in microprocessors are used for various purposes such as generating accurate time delays, measuring time intervals, and controlling the execution of tasks.
They are typically implemented as hardware registers that count clock cycles or external events.
Timers can be triggered by external events, such as a signal ch...read more
Q3. What are interrupts in Microprocessor?
Interrupts in microprocessors are signals that temporarily halt the normal execution of a program to handle a specific event or request.
Interrupts are used to handle time-critical events or to interface with external devices.
They allow the microprocessor to respond to external stimuli without constantly checking for them.
Interrupts have different priority levels and can be masked or enabled/disabled.
Examples of interrupts include keyboard input, timer events, and hardware err...read more
Q4. What is fundamental principle of OPAMP?
The fundamental principle of an operational amplifier (OPAMP) is to amplify the difference between the input voltages.
OPAMP amplifies the voltage difference between its two input terminals
The output voltage of an OPAMP is proportional to the difference between the input voltages
OPAMP has a high gain and high input impedance
The input terminals of an OPAMP draw negligible current
OPAMP operates in a closed-loop configuration to achieve desired amplification
Q5. What are the Losses in Optical fibre?
Losses in optical fibre include attenuation, dispersion, and bending losses.
Attenuation is the reduction in signal strength as it travels through the fibre.
Dispersion is the spreading of the signal due to different wavelengths traveling at different speeds.
Bending losses occur when the fibre is bent too tightly, causing signal loss.
Other losses include splice losses, connector losses, and modal noise.
Q6. What are Servo motors?
Servo motors are devices that convert electrical signals into precise mechanical motion.
Servo motors are commonly used in robotics and automation systems.
They consist of a motor, a control circuit, and a feedback mechanism.
Servo motors are capable of rotating to a specific angle and maintaining that position.
They are often used in applications that require accurate positioning, such as robotic arms or camera gimbals.
Servo motors can be controlled using pulse width modulation ...read more
Q7. What is PWM?
PWM stands for Pulse Width Modulation. It is a technique used to control the amount of power delivered to a device by varying the width of the pulse of a periodic signal.
PWM is commonly used in electronic devices to control the speed of motors or the brightness of LEDs.
It works by rapidly switching a signal between ON and OFF states at a fixed frequency.
The ratio of the ON time to the total period is called the duty cycle, which determines the average power delivered.
By adjus...read more
Q8. Working of Optical fibre.
Optical fiber is a technology that uses thin strands of glass or plastic to transmit data as pulses of light.
Optical fibers are made of a core, cladding, and a protective outer layer.
Light signals are transmitted through the core of the fiber by bouncing off the cladding due to total internal reflection.
Fiber optic cables can transmit data over long distances with minimal loss of signal strength.
They are used in telecommunications, internet connections, cable television, and ...read more
Q9. Is this good insurance policy for employees?
It depends on the specifics of the policy.
What is the coverage amount?
What is the deductible?
Are pre-existing conditions covered?
What is the cost to employees?
What is the network of providers?
What is the policy on maternity leave?
Is there a wellness program?
Q10. What is marketing
Marketing is the process of creating, communicating, delivering, and exchanging offerings that have value for customers, clients, partners, and society at large.
Marketing involves identifying customer needs and wants
Developing products or services to meet those needs
Promoting those products or services to potential customers
Selling the products or services to customers
Building and maintaining relationships with customers
Analyzing market trends and adjusting strategies accordi...read more
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