ECET EEE Model Paper-1 Part3

 

1. The material for armouring on cable is usually

A. Steel tape
B. Galvanized steel wire
C. Any of the above
D. None of the above

Answer : Any of the above
Explanation:-

2. Short circuit currents are due to

A. Single phase to ground faults
B. Phase to phase faults
C. Two phase to ground fault
D. Any of the above

Answer : Any of the above
Explanation:-

3. Copper as conductor for cables is used as

A. Annealed
B. Hardened and tempered
C. Hard drawn
D. Alloy with chromium

Answer : Annealed
Explanation:-

4. Which of the parameter can be neglected for short line

A. Inductance
B. Capacitance
C. Resistance
D. Reactance

Answer : Capacitance
Explanation:-

5. In thermo couples which of the following pairs is commonly used

A. Copper-constantan
B. Alumina-tin
C. Silver-German silver
D. Iron-steel

Answer : Copper-constantan
Explanation:-

6. Arc is a circuit breaker is interrupted at

A. Zero current
B. Maximum current
C. Minimum voltage
D. Maximum voltage

Answer : Zero current
Explanation:-

7. A pure semi conductor under ordinary conditions behaves like

A. A conductor
B. An insulator
C. A magnetic material
D. None of the above

Answer : An insulator
Explanation:-

8. A fuse in a motor circuit provides protection against

A. Over load
B. Short circuit and overload
C. Open circuit
D. None of the above

Answer : Short circuit and overload
Explanation:-

9. Thermistors find use in which of the following

A. In thermometry
B. In measurement of microwave power
C. As a thermal relay
D. All of the above

Answer : All of the above
Explanation:-

10. Laminations of armature core are generally made of

A. Cast iron
B. Carbon
C. Silicon steel
D. Stainless steel

Answer : Silicon steel
Explanation:-