AER1217S2022outline_handout

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…

Question 7

(c) Draw a circuit diagram to represent a TN-C-S earthing system and briefly explain its advantages and disadvantages.   (d) Briefly explain how to estimate the height of air termination of a lightning protection system network using the rolling sphere method and protection angle method. (e) Briefly explain what is meant by Ground Potential Rise (GPR) and explain why an animal like cow would not be adequately protected against GPR.   Note : answer all or else dnt attempt the question

The system having ±0.5% of F.S.D if the full scale deflection is 50 units, then accuracy is _____ a. ±0.25 b. ±1 c. ±0 d. ±0.5

Equation (1) represents the characteristic equation of a digital control system. By using Jury test, the values of the three elements in the third row are: Q(z) = z' - 1.25z - 1.375z -0.25 %3D

Is Microwave Oven an open loop or closed loop system? Write the reason for your answer. For the Microwave Oven system, draw a simple block diagram with the name of input, output and control system used

Using the notation scheme for defining manipulator configurations, draw diagrams of the following robots. Label each joint in the diagram. (i) TVR:TR (ii) VROT:R

Q1\ A) Give the correct the answers (Choose 1. Absorption loss is caused by: (a) Insufficient stirring of the ingredients during manufacture. (b) Changes in the density of the fiber due to uneven rates of cooling. (c) Microscopic cracks in the cladding which allows leakage of the vacuum in the core. (d) Impurities in the fiber. 2. Bending losses: (a) always result in breakage of the fiber. (b) can be caused by microbends and macrobends. (c) are used to detect the length of fiber on a drum. (d) are caused by the difference in the operating temperature of the core compared with the cladding on active fibers. 3. No material could have a refractive index of: (a) 1.5 (b) 1.3 (c) 1.1 (d) 0.9 (a) If the refractive index of the core of an optic fiber was 1.47 and that of the cladding was 1.44, the cone of acceptance would have an angle of approximately: 17.19° (b) 72.82° (c) 78.4° (d) 34.36°

A solenoid relay is operated from a DC supply. The gap forces may be taken as parallel and the permeability of the ferromagnetic paths as very high. The air gap length is 2mm. Determine the air gap area in cm^2 which produces an acting force upon the armature of 0.3997N ?   I need the answer as soon as possible

The maximum electrical trade size of intermediate conduit is a.) 150 mm b.) 125 mm      c.)  200 mm      d.) 100 mm