Applied Electrical B.Sc Question Paper : gujaratuniversity.org.in
University : Gujarat University
Degree : B.Sc
Department : Fire & Safety
Year : I
Subject :Applied Electrical
Document Type : Question Paper
Website : gujaratuniversity.org.in
Download Old/ Previous Question Paper :https://www.pdfquestion.in/uploads/gujaratuniversity.org.in/6919-SYBSC%20Applied%20Elect.%2041054.pdf
Applied Electrical Model Paper :
Second Year B. Sc. (Fire) Examination
April / May – 2003
Time : 3 Hours
Total Marks : 50
Related : Gujarat University Fire Fighting Equipment B.Sc Question Paper : www.pdfquestion.in/6917.html
Instructions :
(1) All questions are compulsory, each of 14 marks.
(2) Figures to the right indicate full marks of the questions.
(3) Non-programmable scientific calculators are permitted.
1 (a) Derive an equation of A-C series skt for 7
(i) Current (ii) Power factor
(iii) Power and also draw vector diagram for it.
(b) Find current through 6 W resistor by superposition 7 theorem.
1 (a) State and explain KCL and KVL. 3
(b) Explain Faraday’s Laws of electromagnetic Induction. 3
(c) Explain Law of Resistance. 3 (d) Define following : 5
(1) Power factor (2) R.M. S. value
(3) Dielectric strength (4) Potential Difference (5) Frequency.
2 (a) Explain types of circuit breaker in brief. 7
(b) Explain types of earthing in details. 7
2 (a) Explain construction and working principle of PMMC 7 Mater
(b) Explain importance of fuse and also explain types 7 of fuse in detail.
3 (a) Explain construction and working principle of 7 transformer and also give the types of cooling used for transformer.
(b) Give answers of following :
(1) What happen if D.C. supply is given to 1 transformer ?
(2) Which types of losses occur in transformer ? 2
(3) An ideal 50 Hz, core type transformer has 4 100 primary winding turns and 200 secondary
winding turns. The primary rated voltage is 220 V, if maximum permissible flux density is 1.2 wb/m2
(i) What should be the area of cross section iron core ?
(ii) Find secondary voltage.
3 (a) Derive e.m.f. equation of transformer. 7
(b) Explain the method for finding out transformer losses. 3
(c) Explain Buchhol 2 relay in detail. 2
(d) Find primary and secondary current in 1 kVA, 2
4 (a) Answer the following questions : 6
(1) Explain power distribution grid
(2) State advantages of HV transmission system.
(b) Write short note : 8
(1) Thermal power station (2) House wiring.
4 (a) Answer the following questions : 6
(1) Explain equipments used in Hydropower station.
(2) Explain D.C. generator with its working principle
(b) Write short note : 8
(1) Types of distribution systems
(2) Substation, equipments installed in it.
5 (a) What is static electricity ? How is it result into 7 fire ?
What should be done to reduce chances of fire ?
(b) Explain mechanism of lighting and protection used 7
5 (a) Explain electric traction with its types. 7
(b) Which equipments are used in electric traction ? Explain in brief.
English Compulsory :
Time : 3 Hours
Total Marks : 100
Instructions :
(1) This paper contains 6 questions.
(2) All are compulsory.
(3) Figures to the right indicate full marks of the questions.
1 Answer briefly any four of the following : 10
(1) What was Gradgrind’s plan regarding Sissy ? Why did he change his plan ?
(2) What options did Gradgrind offer to Cecillia ? Which did she choose ?
(3) What information about Louisa’s marriage did Mr. Harthouse extract from Tom ?
(4) What had happened to Blackpool’s wife ? How Rachael saved her ?
(5) What happened in the meeting between Stephen and Bounderby ?
(6) Why did Louisa come back to her father’s house ?
(7) How did Stephen die ?
(8) What was the end of the novel “Hard-Times” ?
2 (a) Write short notes on any two of the following : 10
(1) Mr. Bounderby
(2) Coketown
(3) Bank Robbery
(4) Mrs. Sparsit’s staircase.
2 (b) Answer any three of the following : 6
(1) Why did eagle fall on the sea ? How ?
(2) Why did the poet decide to move on form the woods suddenly ?
(3) What is the central idea of the poem “Night of the Scorpion” ?
(4) What is the poet attitude towards real life and art in “Ode on a Gracian Urn” ?
(5) What did the poet imagine about the reaper’s song ?
3 Read the following passage carefully and answer the 10 questions given below it :
Machines were made to be man’s servants. Yet he has grown so dependent on them that they have, to a great extent, become his masters. Already many men spend a gooddeal of their time in looking after and waiting upon machines. And the machines are very strict masters. If they do not get their meals, they refuse to work or may burst with anger, spreading ruin and destruction all round them. A lot of our time and energy are saved by machines. We should use this time and energy in being civilzed. Beingcivilized means making and liking beautiful things, thinking freely, living rightly and being fair to all. If we use more time and energy in being civilized, our civilization would be the greatest.
Questions :
(1) Why were machines made ?
(2) How have machines become our masters ?
(3) What is the chief benefit of machines ?
(4) What is meant by being civilized ?
(5) How would our civilization be the greatest ?
4 Write short essay on any one of the following : 10
(1) If I won a lottery
(2) Knowledge is power
(3) The most exciting day in my life
(4) Computer as a friend of mankind.
5 (a) Divide the following words into syllables : 3
(1) Switch
(2) balloon
(3) humiliation.
(b) Put emphasis on the right syllable in the following 3 words :
(1) Progress (verb)
(2) amount
(3) because.
(c) Do as directed : 4
(1) Will you prepare tea for me ? (Turn into request using “mind”)
(2) The students did not visit the book fair yesterday _________ ? (add the question tag)
(3) Will you lend me 100 rupees ? (Find out the verb “lend” is transitive or intransitive)
(4) She will prepare coffee for you. (Rewrite the sentence using “going to” form)
6 (a) Correct the following sentences : 4
(1) The copper is the useful metal.
(2) I am suffering by kidney trouble.
(3) I have borrowed the book from the library yesterday.
(4) The boy burst in tears.
(b) Fill in the blanks with appropriate verbs in the 4 brackets :
(1) While I _______ (cross) the road, my cap blew off.
(2) The police __________ the murderer yet. (not + find)
(3) It was clear that I _______ (judge) her wrongly.
(4) Look, the smoke _______ (come) out of the window.
(c) Fill in the blank with proper prepositions : 3
(1) I always travel _______ plane.
(2) Wine is injurious _______ health.
(3) Do not yield ________ temptation.
(d) Insert proper articles : 3
(1) I have forgotten ________ story which my grandmother told me.
(2) _______ more you go higher, _______ colder you feel.
(3) I have become _______ heir of my uncle’s property.