Basic Electrical Engineering
Mahatma Gandhi Central University, Bihar
B.Tech Computer Science & Engineering
Semester 1 Examination, 2023
Basic Electrical Engineering (CSET3103)
Assessment Questions
Basic Electrical Engineering (CSET3103) - 2023
SECTION – A
(MULTIPLE CHOICE QUESTIONS for 5 Marks). Attempt all questions. Each question carries 1 mark.
- 1
Unit of sigma
- 2
How many electrons pass a fixed point in a 100 watt light bulb in 1 hour, if applied constant voltage is 120V?
- 3
Which statement is WRONG for RLC circuit
- 4
A transformer is a _____ device.
- 5
Phase sequence for negative value?
SECTION – B
Write briefly in 150 words (Short Answer Questions- 5 Marks). Attempt ANY TWO questions out of the followings. Each question carries 2.5 Marks.
- 1
Briefly describe basic electrical elements. Find the relation between power and basic electrical elements?
- 2
Find the current in Ω resistor using KCL
- 3
If a resistance of Ω and capacitor of 150 μFd are connected in series across 230V.
Calculate according to the Frequency = 50Hz
(a) Impedance
(b) Current
(c) Power factor
(d) Phase angle
(e) Power consumed
SECTION – C
Write in 300 Words (Long Answer Questions – 10 Marks) Attempt the questions having internal choice. Each question carries 5 marks.
- 1
Answer any ONE of the following
(a)Explain these:
(i) What is Transformer?
(ii) Define its working and construction.
(iii) Define the types of transformers.
OR
(b)Find the current flow in the circuit.
- 2
Answer any ONE of the following
(a)Find the power in the circuit across each element.
(i) Find the value of (ii) (iii) (iv) (v)
OR
(b)Write a short note on:
(A) LT switchgear (B) Fuse and its types (C) Switch fuse unit (D) MCB (E) MCCB