Topic 8 Quick Check OPS_330T

Question : Explain the concepts of lattice matched hetero-structure. Don’t copy other works. Sub:Optoelectronic  Dept: EEE

control systems

There is a linearity error in the following relationship: 10 8. 0. 0.0 0.5 1.0 1.5 2.0 Distance in (cm) True False Resistance (kohms) 2.

: A) Select the best answer from multiple choices: 1. The system ete-5 is: a. Linear, time invariant, casual. b. Non-linear, time invariant, non-casual. c. Non-linear, time varying, casual. d. Not all the above. 2. Noise can be reduced through: a. Increasing So. b. Increasing Si. c. Both (a) and (b). d. Note all the above.

Give the title proposal about renewable energy atleast 5 title Bachelor electrical engineering

Subject name: Electrical Power Distribution.

In the measurement of level in a tank using capacitive type level probe, the following data is given below. Find C1 and C2. (choose Process Fluid/Service as Grain of mustard seed). Sl.no radius of outer radius of inner cylinder/pipe cylinder/pipe(cm) (cm) (cm) Span Level of liquid Capacitance (C ) (h2) (cm) 1 4 2.48 920 570 C1 3 1.42 1400 1200 C2 Process Fluid/Service Dielectric Constant(E, ) Water 80 Hydrochloric Acid Coffee Beans 1.5 Grain of mustard seed 3.6 Skimmed milk powder 2.3 capacitance C1 capacitance C2 2.

Find the minimum size EMT raceway required to carry three (3) 500kcmil, three (3) 3/0AWG and two (2) #6 AWGconductors

If there is an entire row of zero in the Routh table, the system may be marginally stable. TRUE OR FALSE

57 AF Microsoft Word (Product Activation Failed) Table Tools References Mailings Review View Design Layout 12 AA Aa- =,=,年| AaBbCcDc AaBbCcDc AaBbC AaBbCc Ac = X, x' ab - 1 Normal I No Spaci.. Heading 1 Heading 2 Ti Font Paragraph Styles Q6. A line charging admittance of Y bus matrix is connected between two buses its affect at each bus is consider as Ofull O None of the above Half of the total Average

There are 144 fuel cells are joined in a series through interconnects.there will be 4 stacks having 36 cell in each stack.these stacks are then oragnised in series and parallel combination to form a single module to deliver required voltage and output power.this SOFCs module then combined with CHP system to get thermal . From this data answer the following questions. a)Calculate voltage losses of module?.this question is very compulsory. b)Electrical efficiency of module? C)Thermal efficiency when module combine with CHP system? D)Combined electrical and thermal efficiency? The input parameters of single cell are given below: Ocv=1.020 Current density=2250mA/cm2 Power density=850mw/cm2 Cell active area= 121cm2 Net power=15kw System fuel utilization=80% Operating temp=550°c Cell voltage=0.8v Power of single cell=103 watt.

27). 2 In the northeastern United States, in which direction does the needle of a magnetic compass point? OEast of geographic north O South of geographic north O North of geographic north West of geographic north 28) Inter-row spacing for a tilted rack array is determined by which factors? O Slope and voltage of modules O Sun angle and tilt of modules O Sun angle and voltage of modules O Rack manufacturer specifications 24) Which type of PV array mounting system is MOST common for a residential application with a sloped, south-facing roof? O Rack mount O Pole mount O Ballasted mount O Standoff mount 30) A specification requires the PV array for a stand-alone PV system to be sized to produce 1.25 times the average daily system load of 80 Ah when the irradiation recelved on the array is 4 peak sun hours. If the selected PV module has STC-rated maximum power current (Imp) of 5 A, how many parallel- connected strings of modules are required? 5 31 Which silicon solar cell manufacturing…

For answers in acronyms use all CAPITAL Letters. For short answer capitalized the first letter of each word/words unless indicated in the questions. For numeric value with unit, 1 space in between.

For the following activities, draw the network diagram and by using forward and backward pass, determine:- 1. Project duration. 2. Critical path. Preceding Duration Activity (day) 3 Act. A - -- A 4 C A 2 B E C 1 F C 2 D,E F,G G 4 H. 3

Explain the following for underdamped response of second order system. 1. Overshoot 2. Decay Ratio 3. Rise Time 4. Response Time.

Which of the following Surge Diverter use non-linear resistances in its fabrication? Rod - Gape SD. Lightning Arrester SD. Expulsion Tube SD. O All of the above.

The following problems refer to grounding requirements. Give the source of yourresponses. 1. If they are present, what items are required to be bonded together to form a groundingelectrode system?

-5.0000 -1.0000 + 1.0000i -1.0000 - 1.0000i The roots of the system characteristic equation are: * a) The system is stable. b) The system is unstable. c) The system is marginally (critically) stable.

System Stability   What are the criteria for determining the stability of a system?

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u.om/mod/quiz/attempt.php?atte p 498286&cmid%3D54604%#question-775336-20 ortal displacement sensor can also work with a non-conductive target if a piece of aluminum tape is fastened to it. O inductive sensor O eddy current sensor O potentiometer O differential transformer A PMMC instrument has internal resistance of 0.73 k2 and gives full scale deflection for 34 mA. The required resistance value of ohms. multiplier resistors for employing the meter as a multi range voltmeter for voltage range 68 V will be O 1270.00 O-230.00 O199.27 O 93116.68 Maxwell's bridge is accurate for the measurement coil inductance in milli Henry to several Henry range.

For the cct. Shown below calculate (for charging phase and discharging phase) (T) Write the equation of Vc Write the equation of ic Write the equation of VR For charging phase plot (on a graph paper) i. Vc ii. ic iii. VR iv. E 1 +27, 2 w RK

FIVE QUESTIONS ANSWER ALL Question 1 A cylindrical specimen of Aluminum having a diameter of 12.8 mm and a gauge length of 50.800 mm is pulled in tension. Use the load-elongation characteristics shown in the following table to complete Q1(a) through (f). Raw Data Load (N) Length (mm) 50.800 7330 50.851 15100 50.902 23100 50.952 30400 51.003 34400 51.054 38400 51.308 41300 51.816 44800 52.832 46200 53.848 47300 54.864 47500 55.880 46100 56.896 44800 57.658 42600 58.420 36400 59.182 a) Plot both the engineering stress versus engineering strain and true stress versus true strain curves on the same axis. EV[8] b) Compute the modulus of elasticity. EV[3] c) Determine the yield strength at a strain offset of 0.002. AN[3] d) Determine the tensile strength of this alloy. AN[2] e) Compute the modulus of resilience. AN[2] f) What is the ductility, in percent elongation? AN[2]

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con 84-8.7 Homework Please use the accompanying Excel data set or accompanying Text file data set when completing the following exercise. An article in the ASCE Journal of Energy Engineering ("Overview of Reservoir Release Improvements at 20 TVA Dams," Vol. 125, April 1999, pp. 1-17) presents data on dissolved oxygen concentration from streams below 20 dams in the Tennessee Valley Authority system. The sample mean from the observations is = 3.285 and the sample standard deviation is s = 2.126. Assume population is approximately normally distributed. Round your answers to 2 decimal places. (a) Calculate the 95% two-sided confidence interval on the mean oxygen concentration. i 2.52 ΣΗΣ i 4.05 (b) Calculate the 95% two-sided prediction interval on the dissolved oxygen concentration for the next stream that will be tested. i -0.98 i 7.55 (c) Find an interval that will contain 95% of the values of the dissolved oxygen concentration with 99% confidence. i -2.20 8.77 ) SUPPORT Statistical…

The ---_characteristi cs shows the relation between the generated e.m.f at no load and the field current. O a. internal b. non-magnetic C. external d. magnetic