Basic Electrical Engineering MCQ

Basic Electrical Engineering MCQ

1-What effect of electric current is used in electric motors?

(A) chemical effect

(B) magnetic effect

(C) heating effect

(D) shock effect

 

2-What does S.W.G. stands for?

(A) Standard Western Gauge

(B) Swiss Wire Gauge

(C) Swiss Western Gauge

(D) Standard Wire Gauge

 

3-Combination pliers are not used for

(A) cutting

(B) twisting

(C) hammering

(D) holding

 

4-Armouring is provided in the cable to safeguard against:

(A) moisture entry

(B) white ant

(C) bursting of failure

(D) mechanical damage

 

5-A source of e.m.f. is required in order to:

(A) prevent the escape of electrons

(B) insulate the electrons from the unbalanced atoms

(C) get the electrons into motion

(D) change the property of conductance into resistance

 

6-According to Fleming’s Left Hand Rule, the angle between the thumb, middle finger and forefinger must be

(A) 180° between any two

(B) right angle between any two

(C) all must be 45° apart

(D) mutually at right angle to each other

 

7-Luminous efficiency of a Fluorescent Tube is:

(A) 30 lumen/watt

(B) 40 lumen/watt

(C) 60 lumen/watt

(D) 80 lumen/watt

 

8-What is the unit of Magneto Motive Force?

(A) Volt

(B) Ampere

(C) Ampere-turns

(D) Weber

 

9-Whenever the magnetic flux linking with a conductor changes, an e.m.f. is induced in that conductor. The above statement is due to:

(A) Weber and Ewing’s law

(B) Faraday’s law of electrolysis

(C) Coulomb’s law

(D) Faraday’s law of electromagnetic induction

 

10-Which of the following is not a diamagnetic material?

(A) Air

(B) Water

(C) Glass

(D) Sulphur

 

ANSWERS:

1-(B), 2-(D), 3-(C), 4-(D), 5-(C), 6-(D), 7-(C), 8-(C), 9-(D), 10-(D)