(a) Dynamometer
(b) Moving iron repulsion
(c) Moving iron attraction
(d) Permanent magnet moving coil
Answer-(c)
Answer-(c)
2. How influence error exists on measuring instruments?
(a) Careless handling by user
(b) Temperature and vibrations
(c) Wrong design of instrument
(d) Wrong positioning of instrument
3. How to identify nonlinear scale in a measuring instrument?
(a) Distance between graduations are equal
(b) Zero on the scale is on the right hand side
(c) Distance between graduations are not equal
(d) Crowded graduations in the beginning on scale
Answer-(d)
4. Which factor depends on the accuracy of a series type ohmmeter
(a) Condition of battery
(b) Limiting resistance
(c) Zero adjustment resistor
(d) Permanent magnet moving coil
Answer-(a)
5. Why the megger pointer rests anywhere on the scale in ideal condition?
(a) No provision for controlling torque
(b) Due to leakage current of current coil
(c) Due to leakage current of pressure coil
(d) Due to the influence of permanent magnet
Answer-(a)
6. Why two diametrically opposite holes are drilled in the aluminium disc of energy meter?
(a) Prevents friction error
(b) Prevents creeping error
(c) Correct the speed error
(d) Correct the phase angle error
Answer-(b)
7. Which property of material is essential to make shunt resistance?
(a) Low specific resistance
(b) High specific resistance
(c) High temperature coefficient
(d) Negligible temperature coefficient
Answer-(d)
8. What is the permissible load on lighting and fan sub circuit as per BIS?
(a) 800W
(b) 1600W
(c) 1200 W
(d) 3000 W
Answer-(a)
9. What is the recommended voltage drop between point of commencement of supply to the consumer end as per BIS?
(a) 3%
(b) 4%
(C) 5%
(d) 6%
Answer-(a)
10. Which is the general electrical wiring accessories?
(a) DPIC main switch
(b) Appliance connector
(c) Three pin socket 16 A
(d) Edison screw type holder
11. Which material is used as the fusing element in HRC fuses?
(a) Aluminium
(b) Silver alloy
(c) Bare copper
(d) Tinned copper
12. Which formula is used to calculate fusing factor ( Ff)
(a) Ff=(Rated current )/(minimum fusing current)
(b) Ff= (Minimum fusing current )/(Rated current )
(c) Ff= (Maximum fusing current )/(Rated current )
(d) Ff = (Rated current )/(Maximum fusing current)
13. What is the advantage of tree system of wiring?
(a) Easy fault finding
(b) Uniform voltage distribution
(c) Less chances of break down
(d) Length of cable required is less
14. What is the type of wiring?
(a) Hostel wiring
(b) Tunnel wiring
(c) Godown wiring
(c) Corridor wiring
15. Which switches are used to control one lamp from three different places?
(a) Two numbers two way switches
(b) Three numbers two way switches
(c) One intermediate and one two way switches
(d) One intermediate and two numbers two way switches
16. What is the height from floor the distribution boards can be fixed us per BIS?
(a) 2 meters
(b) 2.5 meters
(c) 3 meters
(d) 3.5 meters
17. Where does the service connection wires from electricity board is connected in a domestic installation main as per IE rule?
(a) IC cut out
(b) Main switch
(c) Energy meter
(d) Distribution board
18. What is the name of the conduit accessory?
(a) Solid bends
(b) Solid elbow
(c) Inspection bend
(d) Inspection elbow
19. Why PVC bushings are used at metal conduit terminations?
(a) Get a smooth finishing
(b) Restrict the entry of insects
(c) Protect the cable from damage
(d) Protect the threading from damage
20. What is the name of conduit saddle?
(a) Saddle hospital
(b) Combined spacer bar saddle
(c) Saddle spacer bar two way
(d) Combined spacer bar saddle
21. What is the fault in domestic wiring if test lamp gives dim light if tested between phase and earthed metallic body?
(a) Open circuit fault
(b) Earth leakage fault
(c) Short circuit between conductors
(d) Short circuit between conductor and earth
22. How to minimize condensation or sweating in a conduit system of wiring?
(a) Increase the cable size
(b) Increase the gauge of conduit
(c) Increase the length of conduit
(d) Drained and ventilate the conduit outlet properly
23. What is the name of the part marked as 'x'?
(a) Bayonet cap
(b) Edision screw cap
(c) Small bayonet cap
(d) Small edision screw cap
24. What is the purpose of capacitor connected across the bimetals in tube lamp starter ?
(a) For quick pick up of lighting
(b) To increase the life of lamp
(c) To increase the starting voltage
(d) To eliminate radio interference effect
25. Why the high pressure metal halide lamp outer jacket is made of borosilicate glass?
(a) To give clear white light
(b) To increase the efficiency
(c) To withstand external climates
(d) To reduce the ultra violet radiation
26. Which network covering is limited to 1 km only?
(a) Internet
(b) LAN (Local area network)
(c) WAN (Wide area network)
(d) MAN (Metropolitan area network)
27. Which network protocol is used to provide bidirectional interactive text oriented communication facility?
(a) UDP
(b) FTP
(c) SMTP
(d) Telnet
28. Which is the radio frequency modem?
(a) ADSL modem
(b) Internal modem
(c) Wireless
(c) Standard modem
29. Which alpha numeric notation used for AC system apparatus as per NE code?
(a) A, B, C, N
(b) X, Y, Z, N
(c) U, V, W, N
(d) L1, L2, L3, N
30. Which switch knob position is illustrated?
(a) Two way switch
(b) Intermediate switch
(c) Multi position switch
(d) One way switch two poles
31. What is the symbol represents?
(a) Table fan
(b) Ceiling fan
(c) Bracket fan
(d) Exhaust fan
32. Which formula is used to calculate the diversity factor?
(a) Diversity factor =(Installed load)/(Maximum actual load )
(b) Diversity factor=(Maximum actual load )/(Installed load)
(c) Diversity factor= (Installed load )/(Minimum actual load )
(d) Diversity factor =(Minimum actual load )/(Installed load )
33. How domestic PVC cable insulations are graded?
(a) Volt
(b) Watt
(c) Ampere
(d) Mega ohm
34. Which formula is used to calculate voltage drop in AC single phase two wire circuits?
(a) (IR )/2
(b) 2IR
(c) √(2IR )
(d) I2R
35. How much voltage may vary from the declared voltage for the HT consumers as per
IF rules?
(a) 3%
(b) 5%
(c) 7.5%
(d)12.5%
36. What is the purpose of test button in ELCB?
(a) Trip OFF
(b) Switch ON
(c) Cut of ELCB from circuit
(d) Increase the sensing current
37. Which term refers for a group of four insulated conductors in telephone cables?
(a) Pair
(b) Quad
(c) Layer
(d) Marker pair
38. Which material is used for telephone overhead conductors?
(a) ACSR
(b) Aluminium
(c) Annealed copper
(d) Cadmium copper
39. Which type of charging method is used to charge the inverter battery?
(a) Boost charge
(b) Initial charge
(c) High input voltage
(d) High output voltage
40. Which protection polyester capacitor is used in UPS?
(a) Overload
(b) Lightning
(c) High input voltage
(d) High output voltage
41. What is the name of the part marked 'x'?
(a) Insulation
(b) Copper wire
(c) Copper mesh
(d) Outside insulation
42. Which type of pump is illustrated?
(a) Jet pump
(b) Centrifugal pump
(C) Submersible pump
(d) Reciprocating pump
43. What is the defect in water pump if it runs with more noise?
(a) Suction lift is too high
(b) Damaged ball bearing
(c) Delivery head is too high
(d) Wrong direction of rotation
44. What is the colour code to be followed to a DC supply system at mid wire as per BIS?
(a) Red, Blue, Black
(b) Red, Black, Green
(c) Red, Yellow, Black
(d) Yellow, Blue, Green
45. Which type of material is used for harnessing of cables?
(a) G.I
(b) Cotton
(c) Plastic
(d) PVC/Nylon
46. Which is an input device in computer?
(a) Scanner
(b) Speakers
(c) Printer
(d) Multimedia projector
47. Which memory chip can be erased and rewritten without removing it from the computer?
(a) ROM
(b) PROM
(c) EPROM
(d) EEPROM
48. Which is the domain name extension for biz?
(a) Represents network
(b) Represents organization
(c) Represents small business
(d) Represents information/resources
49. Which is the formatting shortcut for center alignment of text?
(a) Ctrl+ J
(b) Ctrl+ U
(c) Ctrl+ L
(d) Ctrl+ E
50. Which indicates the proper function of SMPS?
(a) LED indication
(b) Functioning of CPU
(c) Blinkering of monitor
(d) Power supply fan must run
Answer-(b)
(a) Aluminium
(b) Silver alloy
(c) Bare copper
(d) Tinned copper
Answer-(b)
(a) Ff=(Rated current )/(minimum fusing current)
(b) Ff= (Minimum fusing current )/(Rated current )
(c) Ff= (Maximum fusing current )/(Rated current )
(d) Ff = (Rated current )/(Maximum fusing current)
Answer-(b)
(a) Easy fault finding
(b) Uniform voltage distribution
(c) Less chances of break down
(d) Length of cable required is less
Answer-(d)
(b) Tunnel wiring
(c) Godown wiring
(c) Corridor wiring
Answer-(b)
(a) Two numbers two way switches
(b) Three numbers two way switches
(c) One intermediate and one two way switches
(d) One intermediate and two numbers two way switches
Answer-(d)
(a) 2 meters
(b) 2.5 meters
(c) 3 meters
(d) 3.5 meters
Answer-(a)
(a) IC cut out
(b) Main switch
(c) Energy meter
(d) Distribution board
Answer-(c)
(b) Solid elbow
(c) Inspection bend
(d) Inspection elbow
Answer-(d)
(a) Get a smooth finishing
(b) Restrict the entry of insects
(c) Protect the cable from damage
(d) Protect the threading from damage
Answer-(c)
(b) Combined spacer bar saddle
(c) Saddle spacer bar two way
(d) Combined spacer bar saddle
Answer-(c)
(a) Open circuit fault
(b) Earth leakage fault
(c) Short circuit between conductors
(d) Short circuit between conductor and earth
Answer-(b)
(a) Increase the cable size
(b) Increase the gauge of conduit
(c) Increase the length of conduit
(d) Drained and ventilate the conduit outlet properly
Answer-(d)
(b) Edision screw cap
(c) Small bayonet cap
(d) Small edision screw cap
Answer-(a)
(a) For quick pick up of lighting
(b) To increase the life of lamp
(c) To increase the starting voltage
(d) To eliminate radio interference effect
Answer-(d)
(a) To give clear white light
(b) To increase the efficiency
(c) To withstand external climates
(d) To reduce the ultra violet radiation
Answer-(d)
(a) Internet
(b) LAN (Local area network)
(c) WAN (Wide area network)
(d) MAN (Metropolitan area network)
Answer-(b)
(a) UDP
(b) FTP
(c) SMTP
(d) Telnet
Answer-(d)
(a) ADSL modem
(b) Internal modem
(c) Wireless
(c) Standard modem
Answer-(c)
(a) A, B, C, N
(b) X, Y, Z, N
(c) U, V, W, N
(d) L1, L2, L3, N
Answer-(c)
(b) Intermediate switch
(c) Multi position switch
(d) One way switch two poles
Answer-(b)
(b) Ceiling fan
(c) Bracket fan
(d) Exhaust fan
Answer-(d)
(a) Diversity factor =(Installed load)/(Maximum actual load )
(b) Diversity factor=(Maximum actual load )/(Installed load)
(c) Diversity factor= (Installed load )/(Minimum actual load )
(d) Diversity factor =(Minimum actual load )/(Installed load )
Answer-(d)
(a) Volt
(b) Watt
(c) Ampere
(d) Mega ohm
Answer-(a)
(a) (IR )/2
(b) 2IR
(c) √(2IR )
(d) I2R
Answer-(b)
IF rules?
(a) 3%
(b) 5%
(c) 7.5%
(d)12.5%
Answer-(d)
(b) Switch ON
(c) Cut of ELCB from circuit
(d) Increase the sensing current
Answer-(a)
(a) Pair
(b) Quad
(c) Layer
(d) Marker pair
Answer-(b)
(a) ACSR
(b) Aluminium
(c) Annealed copper
(d) Cadmium copper
Answer-(d)
(a) Boost charge
(b) Initial charge
(c) High input voltage
(d) High output voltage
Answer-(c)
(a) Overload
(b) Lightning
(c) High input voltage
(d) High output voltage
Answer-(b)
(b) Copper wire
(c) Copper mesh
(d) Outside insulation
Answer-(c)
(b) Centrifugal pump
(C) Submersible pump
(d) Reciprocating pump
Answer-(d)
(a) Suction lift is too high
(b) Damaged ball bearing
(c) Delivery head is too high
(d) Wrong direction of rotation
Answer-(b)
(a) Red, Blue, Black
(b) Red, Black, Green
(c) Red, Yellow, Black
(d) Yellow, Blue, Green
Answer-(a)
(a) G.I
(b) Cotton
(c) Plastic
(d) PVC/Nylon
Answer-(d)
(a) Scanner
(b) Speakers
(c) Printer
(d) Multimedia projector
Answer-(a)
(a) ROM
(b) PROM
(c) EPROM
(d) EEPROM
Answer-(d)
(a) Represents network
(b) Represents organization
(c) Represents small business
(d) Represents information/resources
Answer-(c)
(a) Ctrl+ J
(b) Ctrl+ U
(c) Ctrl+ L
(d) Ctrl+ E
Answer-(d)
(a) LED indication
(b) Functioning of CPU
(c) Blinkering of monitor
(d) Power supply fan must run
Answer-(d)
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