Basic electrical engineering test for btech 1st and 2nd semester

This test completely based on Exam pattern and Syllabus, So give this test and Improve your preparations! Wish you very all the best!

Q.1 How many cycles will an AC signal make in 2 Seconds of it's frequency is 100Hz?

(A) 50

(B) 100

(C) 150

(D) 200

Q.2 Pure inductive circuit?

(A) consume some power on average

(B) doesn't take Power at all from a line

(C) takes power from the line during some during other part of the cycle part of the cycle and then returns back to it

(D) none of the above

Q.3 The time constant for RL circuit is?

(A) RC

(B) LR

(C) RL

(D) R/L

Q.4 Which of the elements in the following is not bilateral?

(A) resistor

(B) inductor

(C) capacitor

(D) transistor

Q.5 The condition for maximum efficiency in a transformer is?

(A) the core losses should be equal to friction and windage losses

(B) the copper losses equal to mechanical losses

(C) the core losses equal to copper losses

(D) the copper losses should be equal to half of the core losses

Q.6 The unit of magnetic flux density is?

(A) wb/m

(B) wb/m square

(C) A/m square

(D) AT

Q.7 For domestic wiring purpose, how are circuits connected?

(A) straight

(B) series

(C) parallel

(D) serial

Q.8 If 20,30 and 50 ohm's are connected in data collection, then what are it's equivalent values ( in ohm's) in Star connection?

(A) 6, 10, 10

(B) 6, 10, 5

(C) 15, 15, 10

(D) 6, 15, 15

Q.9 The maximum power will be transferred from a?

(A) the source impedance is half of the load impedance

(B) the source impedance is equal to the load impedance

(C) the source impedance is twice that of the load impedance

(D) the source impedance and load impedance both must be zero

Q.10 The time contestant of RC circuit is?

(A) 1/Rc

(B) R/C

(C) 1/Re

(D) RC