Electrician First Year Online CBT Exam MCQs In English-01
1. What is the ability of the wire to carry current when the temperature rises
(A) No change
(B) The wire can carry more current
(C) current can bear less
(D) The wire cannot carry the current
Answer - (C)
2. The semi-charged battery has a relative density
(A) 800 to 1000
(B) 1150 to 1200
(C) 1250 to 1280
(D) None of the above
Answer - (C)
3. Germanium is electrical
(A) conductor
(B) insulator
(C) semiconductor
(D) None of the above
Answer - (C)
4. What is the magnetic field left in an iron magnet after it is removed from the magnetic field?
(A) electromagnet
(B) Magnetic spill
(C) Electromagnetism
(D) Residual magnetism
Answer - (D)
5. Which is the waste disposal method, which produces heat
(A) Recycling
(B) Fertilize
(C) incineration
(D) waste compaction
Answer - (C)
6. The voltage measured between a phase and a neutral is called
(A) line voltage
(B) phase voltage
(C) High voltage
(D) Low voltage
Answer - (B)
7. What is the condition for achieving maximum efficiency from transformer
(A) Copper loss> Iron loss
(B) Copper loss <Iron loss
(C) Copper loss = Iron loss
(D) Copper loss = vortex current loss
Answer - (C)
8. Which metal wire is used for earthwork
(A) Aluminum
(B) galvanized iron
(C) Eureka
(D) Silicon Steel
Answer - (B)
9. An arc bulb consists of electrodes used
(A) Tungsten
(B) nichrome
(C) Eureka
(D) Carbon
Answer - (D)
10. What does the shape of the B-curve (hysteresis loop) of a substance represent?
(A) Reluctance of substance
(B) field intensity of matter
(C) Magnetic characteristics of matter
(D) Drawing power of magnetic material
Answer - (C)
You are studying - Electrician Educations
11. Which of the following non-metals is a conductor of electricity
(A) Bakelite
(B) Tungsten
(C) graphite
(D) None of the above
Answer - (C)
12. Which of the following electronic devices is used to convert AC to DC
(A) Oscillator
(B) Rectifier
(C) cell
(D) Battery
Answer - (B)
13. The value of resistance will be equal to
(A) voltage X current
(B) current / voltage
(C) voltage / current
(D) None of the above
Answer - (C)
14. Which feature of magnet is shown
(A) directional feature
(B) induction characteristic
(C) Saturated feature
(D) Pole present characteristic
Answer - (A)
15. Which device is used for oil testing of transformer
(A) multimeter
(B) Techometer
(C) Oil testing kit
(D) Standard Wire Gauge
Answer - (C)
16. Which switch is used to turn on or off the three phases simultaneously?
(A) One way switch
(B) ICDP switch
(C) ICTP Switch
(D) rotary switch
Answer - (C)
17. When a joint is made on any wire, the value of the mechanical and electrical strength of the wire decreases in place of the joint. Is to overcome this deficiency
(A) Insulation tape is used
(B) Insulation tape is used with soldering
(C) welding is used
(D) ALL OF THE ABOVE
Answer - (B)
18. Which technique is used to control corrosion of metal surface
(A) Anodic protection
(B) Cathodic protection
(C) Electrolytic protection
(D) Stable electrical safety
Answer - (B)
19. What energy is found in a dry cell
(A) mechanical energy
(B) Electromagnetic energy
(C) Electrical energy
(D) Chemical energy
Answer - (D)
20. If the distance between two charges is half, then the force between it is
(A) half
(B) One fourth
(C) double
(D) four times
Answer - (D)