What kind of rotatory shaft will be required for counting 10 in up and down order if the speed is 1x. The shaft should be capable of tracking each count of 10. Draw the shaft and also draw the timing diagram for up/down counting. How much up/down counting is possible with 2x speed, illustrate with the help of a Timing Diagram.

Briefly describe how statistical process control improves industrial production.

Design a state machine to recognize if a binary string contains any occurrence of the sequence “10101”. Is it possible to design this state machine with less states? By using Finite State machine designer.

http://madebyevan.com/fsm/

Ten thyristors are used in a string to withstand a de voltage of Vs = 15 kV. The maximum leakage current and recovery charge differences of thyristors are 10 mA and 150µC, respectively. Each thyristor has a voltage sharing resistance of R = 56 kΩ and capacitance of C1 = 0.5 µF. Determine the

1. Maximum steady-state voltage sharing, V_DS(max);
2. Steady-state voltage derating factor;
3. Maximum transient voltage sharing, V_DT(max); and
4. Transient voltage derating factor

Design 4-bit odd number synchronous count-down counter showing BCD output through a 7-segment display using J-K flip flop and logic gates with Active LOW RESET pin to the existing circuit so that when RESET pin is enabled, the counter counts from the beginning

Types and function for power generating stations.

What are the major 3 transistor innovations in recent 15 years and related device performance improvement? What is the physics to limit continuously downscaling and ends Moore’s law? What are the 2 major reasons to continuously scale down?

1# Charge flow in battery is from?

A ) Anion to Cation B) Anion to Cathode C) Anode to Cathode D) Positive Electrode to Negative Electrode

2# Which of these is a set of Decimals and Indices?

A) Stack B) Queue C) FIFO D) Array

3# 4 bits in a system how many Modules?

A) 4 B) 10 C) 24 D) 16

4# What is the Micro strip antenna ?

a. Antenna which is used in electronic circuits
b. Antenna which is used in embedded circuits
c. It is small antenna
d. It is large antenna

5# Incandescent Lamp flickering can be noticed in case of
a. Voltage increasing
b. Voltage decreasing
c. Frequency increasing d. Frequency decreasing

A requirement to sense glass bottles leaving an automatic washer on a production line conveyor belt has been notified to you. The output from the sensor is to be of binary form, i.e. logical 1 when the part is present and logical 0 when no part is present. It is also necessary to ensure that a change of sensor state occurs closer to the sensor when a bottle approaches than when it moves away. The switching distance will lie between 5 and 20 mm. The production line is for food products and the environment is clean and maintained at a temperature of 15°C. Bottles will pass the sensor at the rate of 10 every second. There is no requirement for protection from contact with objects but it must be proof against water drips.

(a) Recommend a suitable sensor and justify your recommendation. Sketch a diagram that shows the functional blocks within the sensor and explain each function.

(b) Would the recommended sensor be suitable if a change was made from glass to plastic bottles?

How can we increase the emission efficiency of a LED. Explain with the aid of a band diagram

Describe an example of a process which would be better controlled using fuzzy logic instead of traditional binary logic. Address its advantages and identify potential drawbacks.

An environmentally progressive small manufacturer in South Dakota has observed that her gas bill in February (the coldest month of the year) is usually about $900 (for space heating only). She uses a large natural gas space heater whose efficiency is known to be about 89%. She is considering upgrading to a furnace that uses a water source heat-pump with a coefficient of performance of 4.2. The heat-pump operates on 240 VAC electricity. Furthermore, she plans to install a wind turbine to generate enough electricity to power the new heat pump. The turbine will be connected to lead-acid batteries, each 12 VDC, but connected in strings of 5 batteries in series. In planning the wind turbine system, to choose an appropriate turbine and tower height, she needs to estimate the daily DC load that the wind turbine system would need to supply to the inverter on the ground. The inverter’s efficiency (in converting 60 VDC to 240 VAC) is 91%. Estimate the daily DC load (in Wh per day) as input to the inverter to power the heat-pump (for an average day in February). Put a box around this final estimate. By the way, her natural gas costs $6.25/mcf and the energy content of the gas is about 1030 btu/ft³. The electricity she is currently using costs $0.095/kWh.

Construct the root locus for k>0 for the linear control system with the following characteristic equation s^3+3*s^2+(K+2)*s+5K=0

b) Using Routh criteria find the range of K to keep the system stable

Provide a circuit diagram and explanation for controlling a linear actuator using an Arduino. How can you provide more power to the motor than Arduino can handle?