ENGINEERING CAREER AND STUDY MATERIALS

Question #1. Electrical machines having a power output upto about 750 W may be called_______machines. (a) small size (b) medium size (c) large size (d) any of the above Answer: (a) small size Question #2. A good control system has all the following features except (a) good stability (b) slow response (c) good accuracy (d) sufficient power handling capacity Answer: (b) slow response Question #3. The type 0 system has ______ at the origin. (a) simple pole (b) net pole (c) no pole (d) two poles Electrical Engineering questions and answers for competitive exams Electrical Engineering Questions Electrical engineering Question Answers Electrical Engineering Question Answers- Nov 2018 Electrical Engineering Question Answers Electrical Engineering Question Answers (e) none of the above Answer: (c) no pole Question #4. A direct current can be measured by (a) a D.C. potentiometer directly (b) a D.C. potentiometer in conjunction with a volt ratio box (c)...

Question #1. In D.C. machines, ir order to prevent excessive distortion of field form by the armature reaction, the field mmf must be made (a) equal to that of armature mmf (b) less in comparison with the arma¬ture mmf (c) large in comparison with the arma-ture mmf (d) none of the above Answer: (c) large in comparison with the arma-ture mmf Question #2. For measurements on high voltage capacitors, the suitable bridge is (a) Wein bridge (b) Modified De Santy's bridge (c) Schering bridge (d) Any of the above (e) None of the above Answer: (c) Schering bridge Question #3. A signal other than the reference input that tends to affect the value of controlled variable is known as (a) disturbance (b) command (c) control element (d) reference input Answer: (a) disturbance Question #4. By which of the following methods the temperature rise of windings and other parts may be determined ? (a) Thermometer method (6) Resistance method

Question # 1. signal will become zero when the feedback signal and reference signs are equal. (a) Input (b) Actuating (c) Feedback (d) Reference Answer: (b) Actuating Question # 2. The distance between the starts of two consecutive coils measured in terms of coil sides is called (a) front pitch (b) winding pitch (c) commutator pitch (d) back pitch Answer: (b) winding pitch Question # 3. In a D.C. machine the number of brush arms is _____ the number of poles. (a) less than (b) greater than (c) equal to (d) none of the above Answer: (c) equal to Question # 4. The phase lag produced by transportation relays (a) increases linearly with frequency (b) is inverseh'proportional to frequency (c) is independent of frequency (d) decreases linearly with frequency Answer: (a) increases linearly with frequency Question # 5. _____ instruments are those which measure the total quantity of electricity delivered in a particular time. (a) Absolute (b) ...

1. In ________ machines, the size of the shaft is decided by the critical speed which depends on the deflection of the shaft. (a) small (b) medium (c) large (d) any of the above. Answer: (c) large 2. Materials exhibiting zero value of resistivity are known as ______ . (a) conductors__ (b) superconductors (c) insulators (d) semiconductors Answer: (b) superconductors 3. A control system in which the control action is somehow dependent on the output is known as (a) Open system (b) Semiclosed loop system (c) Closed loop system (d) None of the above Answer: (c) Closed loop system 4. Which of the following methods does not take into account the maximum temperature rise under variable load conditions ? (a) Method of average losses (b) Equivalent current method