Test 5 General Electrical Engineering

Test 5 General Electrical Engineering

1_______ is used to measure the flow of air around aeroplane 

A. Anemometer. 
B. Venturimeter. 
C. Orifice. 
D. nucleus.Answer

2 Relative permittivity can be measured by _______ bridge 

A. Wheatstone. 
B. Hays. 
C. Desauty. 
D. Schering.Answer

3 There is a ________ between two nodes of signal flow graph 

A. link. 
B. branch. 
C. tree. 
D. none of the abovAnswer

4 What is the phase difference between two windings of A.C servomotor ? 

A. 30°. 
B. 60°. 
C. 90°. 
D. 120°.Answer

5 Which of the following logic circuits is the fastest? 

A. RTL. 
B. DTL. 
C. TTL. 
D. All have same speed.Answer

6 Which of the following is not a transmission medium? 

A. Telephone lines. 
B. Coaxial cables. 
C. Modem. 
D. Microwave systems.Answer

7 In a RC phase shift oscillator, the minimum number of R-C networks to be connected in cascade will be 

A. one. 
B. two. 
C. three. 
D. four.Answer

8 A three phase 400 V, 6 pole, 50 Hz, squirrel cage induction motor is running at a slip of 5%. The speed of stator magnetic field with respect to rotor magnetic field and speed of rotor w.r.t stator magnetic field are

A. zero , - 50 rpm. 
B. zero, 950 rpm. 
C. 1000 rpm, - 50 rpm. 
D. 1000 rpm, 950 rpm.Answer

9 A 400 V, 50 Hz, 30 Hp, three phase IM is drawing 50 A current at 0.8 p.f lagging. The stator and rotor copper losses are 1.5 KW and 900 W respectively. The friction and windage losses are 1050 W and core losses are 1200 W. The air gap power of the motor will be 

A. 23.06 kW. 
B. 24.11 kW. 
C. 25 kW. 
D. 26.21 kW.Answer

10 What is the rms value of the voltage waveform shown in Figure ?
diagram-for-mcq

A. 200 /p V. 
B. 100 /p V. 
C. 200 V. 
D. 100 V.Answer