Explain why Linux is becoming a preferred operating system?

Assessment of gait in elderly

Smart home

Dhani Ram is a 67 years old person living in Delhi for past 20 years in a local slum. He was earning his daily living by doing odd jobs as head leader in and around whole sale markets. For the last couple years he has been suffering from severe pain in his limbs and is unable to do as much and get work every day. At times he experiences breathing difficulties. He lives with his wife and son. His son is also an unskilled daily wage worker. In the pandemic period his earning were severely affected. Of late it has become difficult for Dhani Ram to make his two ends meet and take care of his family's cscntial needs. The son has also started drinking alcohol and started misbehaving with his parents. He wonders if the government can help him in his old age by giving him some monthly allowance to afford him dignity. How do you think he can be helped. Elaborate on the scheme with

Mr. X 70 years old is a diabetic on only one oral hypoglycaemic agent and is regular with his check ups. His HbAlc done last month is 7.5%. His Mini mental state examination (MMSE) reports good cognitive functions. He goes for a brisk walk everyday for 45 minutes. Mention the physical tests that can be performed on him and the reference results.

Explain the WAE layer of WAP architecture. Write any four uses of WAP.

Justify the need of standard network protocols and describe the various layers of OSI model

Differentiate between a Router and a Gateway.

Write down the instructions involved in adding three numbers X, Y, Z and storing the result in memory location D.

In an optical fibre the refractive index of core is 1.53 and that of cladding is 1.49. Calculate the critical angle and acceptance angle when the fibre is immersed in glycerine. Refractive index of glycerine is 1.47.

Explain with the help of a neat diagram the setup to measure VSWR.

What is the role of blanking and sync pulses in a TV signal? How are these pulses incorporated with the video signal?

In a transmitter the final stage class C amplifier is supplied with 18 V de supply. Calculate what equivalent Rioad the transistor must see, in order to produce an RF output of 15 W. If the transmitter is to be connected to an antenna with 50 2 load impedance, design and draw an L network to provide required match.

If five video signals are to be transmitted on a TDM system using PAM, what is the minimum sampling frequency required? What will be the quiet time between the samples from two consecutive channels?

Describe the process of call handling in mobile telephony.

Design and draw a circuit, with discrete electronic devices used as keys, to implement an FSK generator which gives out frequency o for binary value 0 and fi for binary value 1.

An amplitude modulated carrier wave is viewed on an oscilloscope screen. The maximum amplitude is 50V and minimum amplitude is 8V. Calculate the percentage modulation index. What is the amplitude of unmodulated carrier wave?

Explain, how the gain is increased by an antenna array.

A plane wave is described by an electric field

Ε = 180 cos108 (2t-100y).

What is its i) frequency in Hz, ii) wave number, iii) phase velocity, iv) wavelength and v) direction of propagation?

Describe the noises originating in various circuit components of a communication system.