Q.326 Calculate torque developed by the 3-phase, 5 H.P, 4-pole induction motor runs at 1500 rpm A. 23.5 N-m B. 22 N-m C. 0 N-m D. 10 N-m Ans.: C Q.327 Which of the following breaking method save energy? A. Read More …
Category: ELECTRICAL ENGINEERING
ELECTRICAL ENGINEERING MCQ_20
Q.311 To find the most accurate values for resistance and inductance of the transmission line A. End condenser configuration is used B. Pi configuration is used C. T configuration is used D. Distributed parameters configuration is used Ans.: D Q.312 Read More …
ELECTRICAL ENGINEERING MCQ_19
Q.296 Fast excitation system of the generator will… A. improve the voltage control B. improve the power factor C. improve the reactive power control D. improve the dynamic stability Ans.: D Q.297 The z matrix of 2 port network is Read More …
ELECTRICAL ENGINEERING MCQ_18
Q.281 Two heaters, rated at 500W 250 V each are connected in series across a 250v, 50 Hz mains. The total power drawn from the supply wound be_____watt. A. 500 B. 250 C. 1000 D. 125 Ans.: B Q.282 The Read More …
ELECTRICAL ENGIENERING MCQ_17
Q.266 IF the voltage is increased by n times, the size of the conductor would A. increase by n times B. reduce by 1/n times C. increase by n^2 times D. reduce by 1/n^2 times Ans.: D Q.267 The semiconductors Read More …
ELECTRICAL ENGINEERING MCQ_16
Q.251 The operating time of a fuse is about A. 0.002 sec. B. 1 sec. C. 0.8 sec D. 1.5 sec. Ans.: A Q.252 A 5° C rise in temperature is observed in a conductor by passing a current. When Read More …
ELECTRICAL ENGINEERING MCQ_15
Q.236 The most commonly used material for insulators of overhead lines is A. porcelain B. Glass C. Steatite D. none of the above Ans.: A Q.237 Sag is provided in overhead lines so that A. Safe tension is not exceed Read More …
ELECTRICAL ENGINEERING MCQ_14
Q.221 The distribution transformer is rated in A. KW B. KVAR C. KVA D. none of the above Ans.: C Q.222 A circuit breaker, under normal conditions, should be inspected A. every day B. every week C. every month D. Read More …
ELECTRICAL ENGINEERING MCQ_13
Q.206 Air blast circuit breaker is used for A. Short duty B. Over currents C. Repeated duty D. Intermittent duty Ans.: C Q.207 _______ has zero temperature co-efficient of resistance A. Carbon B. Aluminium C. Porcelain D. Manganin Ans.: D Read More …
ELECTRICAL ENGINEERING MCQ_12
Q.191 If three 10 µF capacitors are connected in parallel, the net capacitance is A. 10/3 µF B. 30 µF C. 3/10 µF D. 60 µF Ans.: B Q.192 The main purpose of performing open circuit test on a transformer Read More …