Electrical Engineering Multiple Choice Solved Questions-2021
The following Multiple Choice Electrical Engineering Questions are useful for those who are searching new government jobs in Public Sector and private sector companies. these questions are commonly asked during Electrical Engineers Recruitment written test or Online computer examinations. The Answers are provided below each questions for your easy learning.
Question No. 1. The density of hydrogen is _____ times the density of air.
(a) 0.07
(b) 1.5
(c) 2.5
(d) 3.5
Answer: Option: a
Question No. 2. A series generator can self-excite
(a) only if the load current is zero
(b) only if the load current is not zero
(c) irrespective of the value of load current
(d) none of the above
Answer: Option: b
Question No. 3. The terminal voltage of a series generator is 150 V when the load current is 5 A. If the
load current is increased to 10 A, the terminal voltage will be
(a) 150 V
(b) less than 150 V
(c) greater than 150 V
(d) none of the above
Answer: Option: : c
Frequently Asked Electrical Engineering Question
(a) conduction
(b) convection
(e) radiation
(d) any ofthe above
Answer: Option: b
Electrical Engineering Multiple Choice Solved Questions
voltage
(a) will be less than 250 V
(b) will always be 250 V
(c) may be greater or less than 250 V
(d) none of the above
Answer: Option: cQuestion No. 6. The essential condition for parallel operation of two D.C. generators is that they have
‘(a) same kW rating
(b) the same operation r.p.m.
(c) the same drooping voltage charac-teristics
(d) same percentage regulation
Answer: Option: c
(a) to increase the series flux
(b) to increase the generated e.m.f.
(c) to reduce the combined effect of ar-mature reaction of both the machines
(d) so that the two identical machines will pass approximately equal currents to the load
Answer: Option: d
Question No. 8______is extensively used for those portions of magnetic circuit which carry steady flux
and need superior mechanical properties ?
(a) Grey cast-iron
(b) Cast steel
(c) High carbon steel
(d) Stainless steel
Ans: b
(a) 100% regulation
(b) infinite regulation
(c) 50% regulation
(d) 1% regulation
Answer: Option: d
Question No. 10. In a D.C. generator the critical resistance can be increased by
(a) increasing its field resistance
(b) decreasing its field resistance
(c) increasing its speed
(d) decreasing its speed
Answer: Option: c