SLTC TEST PAPER 2025/2026 QUESTIONS AND SOLUTION
RATED A+
✔✔RESISTANCE IS MEASURED IN UNITS CALLED - ✔✔OHMS
✔✔VOLTAGE AFFECTS MANY THINGS LIKE - ✔✔1. AMOUNT OF INSULATION
NEEDED
2.SEPARATION REQUIRED BETWEEN LINE CONDUCTORS
3.SAFE WORKING PRACTICES
4.TYPES OF TOOLS NEEDED
✔✔RATE OF 1 JOULE OF WORK IN 1 SECOND IS THE BASIC UNIT OF POWER
AND IS CALLED - ✔✔WATT
✔✔1 HP IS EQUIVALENT TO HOW MANY WATTS - ✔✔746
✔✔746 WATTS IS EQUIVALENT TO HOW MANY KILOWATTS - ✔✔0.746
✔✔THE RELATIONSHIP BETWEEN CURRENT, VOLTAGE, AND RESISTANCE WAS
DESCRIBED IN A FORM COMMONLY REFERRED TO AS - ✔✔OHM'S LAW
✔✔ON THE POWER WHEEL 'E' IS WHAT - ✔✔VOLTAGE
MEASURED IN VOLTS (V)
✔✔ON THE POWER WHEEL 'I' IS WHAT - ✔✔CURRENT
MEASURED IN AMPERES (A)
✔✔ON THE POWER WHEEL 'R' IS WHAT - ✔✔RESISTANCE
MEASURED IN OHMS
✔✔ON THE POWER WHEEL 'P' IS WHAT - ✔✔POWER
MEASURED IN WATTS (W)
✔✔POWER IS DEFINED AS - ✔✔THE RATE AT WHICH WORK IS DONE
✔✔ONE WATT IS DEFINED AS - ✔✔AMOUNT OF POWER PRODUCED WHEN ONE
VOLT CAUSES ONE AMPERE OR CURRENT TO FLOW
✔✔POSITIVE VOLTAGE CAUSES CURRENT TO FLOW IN WHICH DIRECTION -
✔✔AWAY FROM THE GENERATING STATION
✔✔NEGATIVE VOLTAGE CAUSES CURRENT TO FLOW IN WHICH DIRECTION -
✔✔FLOW TOWATRDS THE GENERATING STATION
, ✔✔THREE THINGS NEEDED TO PRODUCE ALTERNATING CURRENT - ✔✔1.
CONDUCTOR
2.MAGNETIC FIELD
3. RELATIVE MOTION BETWEEN THE TWO
✔✔POLARITY IS WHAT - ✔✔DIRECTION OF CURRENT FLOW BETWEEN
POSITIVE AND NEGATIVE VOLTAGE
✔✔STRENGTH OF THE VOLTAGE PRODUCED DEPENDS ON THREE PRIMARY
FACTORS - ✔✔1. NUMBER OF TURNS IN THE COIL OF THE WIRES
2. STRENGTH OF THE MAGNETIC FIELD
3. SPEED AT WHICH THE MAGNETIC LINE OF FLUX PASS THROUGH THE COIL
✔✔SINE WAVE IS DEFINED AS - ✔✔A GRAPHICAL REPRESENTATION OF WHAT
IS HAPPENING TO THE VOLTAGE IN AN AC CIRCUIT OVER A PERIOD OF TIME
✔✔AMPLITUDE IS DEFINED AS - ✔✔THE MAXIMUM VALUE OF CURRENT OR
VOLTAGE.
REPRESENTED BY EITHER OF THE TWO 'PEAKS'
THIS VOLTAGE IS ALSO REFERRED TO AS THE 'PEAK VOLTAGE' CAN BE
EITHER POSITIVE OR NEGATIVE (WHICH +/- REFER TO DIRECTION OF FLOW)
✔✔A SINE WAVE HAS A VALUE OF 0 HOW MANY TIMES - ✔✔3
0/180/360
✔✔FREQUENCY IS MEASURED IN - ✔✔HERTZ
✔✔DEGREE IN SEPARATION BETWEEN EACH PHASE - ✔✔120
✔✔NUMBER OF TIMES A SINE WAVE PATTERN OCCURS IN ONE SECOND IS
KNOWN AS - ✔✔FREQUENCY
✔✔RMS IS FOUND BY MULTIPLYING THE PEAK AMPLITUDE BY - ✔✔O.707
0.707XPEAK
✔✔HOW MANY WIRES IN A DELTA SYSTEM - ✔✔3
NO NUETRAL
DELTA NEEDS HELP
✔✔HOW MANY WIRES IN A WYE SYSTEM - ✔✔4
WITH NUETRAL
WYE STANDS ALONE
RATED A+
✔✔RESISTANCE IS MEASURED IN UNITS CALLED - ✔✔OHMS
✔✔VOLTAGE AFFECTS MANY THINGS LIKE - ✔✔1. AMOUNT OF INSULATION
NEEDED
2.SEPARATION REQUIRED BETWEEN LINE CONDUCTORS
3.SAFE WORKING PRACTICES
4.TYPES OF TOOLS NEEDED
✔✔RATE OF 1 JOULE OF WORK IN 1 SECOND IS THE BASIC UNIT OF POWER
AND IS CALLED - ✔✔WATT
✔✔1 HP IS EQUIVALENT TO HOW MANY WATTS - ✔✔746
✔✔746 WATTS IS EQUIVALENT TO HOW MANY KILOWATTS - ✔✔0.746
✔✔THE RELATIONSHIP BETWEEN CURRENT, VOLTAGE, AND RESISTANCE WAS
DESCRIBED IN A FORM COMMONLY REFERRED TO AS - ✔✔OHM'S LAW
✔✔ON THE POWER WHEEL 'E' IS WHAT - ✔✔VOLTAGE
MEASURED IN VOLTS (V)
✔✔ON THE POWER WHEEL 'I' IS WHAT - ✔✔CURRENT
MEASURED IN AMPERES (A)
✔✔ON THE POWER WHEEL 'R' IS WHAT - ✔✔RESISTANCE
MEASURED IN OHMS
✔✔ON THE POWER WHEEL 'P' IS WHAT - ✔✔POWER
MEASURED IN WATTS (W)
✔✔POWER IS DEFINED AS - ✔✔THE RATE AT WHICH WORK IS DONE
✔✔ONE WATT IS DEFINED AS - ✔✔AMOUNT OF POWER PRODUCED WHEN ONE
VOLT CAUSES ONE AMPERE OR CURRENT TO FLOW
✔✔POSITIVE VOLTAGE CAUSES CURRENT TO FLOW IN WHICH DIRECTION -
✔✔AWAY FROM THE GENERATING STATION
✔✔NEGATIVE VOLTAGE CAUSES CURRENT TO FLOW IN WHICH DIRECTION -
✔✔FLOW TOWATRDS THE GENERATING STATION
, ✔✔THREE THINGS NEEDED TO PRODUCE ALTERNATING CURRENT - ✔✔1.
CONDUCTOR
2.MAGNETIC FIELD
3. RELATIVE MOTION BETWEEN THE TWO
✔✔POLARITY IS WHAT - ✔✔DIRECTION OF CURRENT FLOW BETWEEN
POSITIVE AND NEGATIVE VOLTAGE
✔✔STRENGTH OF THE VOLTAGE PRODUCED DEPENDS ON THREE PRIMARY
FACTORS - ✔✔1. NUMBER OF TURNS IN THE COIL OF THE WIRES
2. STRENGTH OF THE MAGNETIC FIELD
3. SPEED AT WHICH THE MAGNETIC LINE OF FLUX PASS THROUGH THE COIL
✔✔SINE WAVE IS DEFINED AS - ✔✔A GRAPHICAL REPRESENTATION OF WHAT
IS HAPPENING TO THE VOLTAGE IN AN AC CIRCUIT OVER A PERIOD OF TIME
✔✔AMPLITUDE IS DEFINED AS - ✔✔THE MAXIMUM VALUE OF CURRENT OR
VOLTAGE.
REPRESENTED BY EITHER OF THE TWO 'PEAKS'
THIS VOLTAGE IS ALSO REFERRED TO AS THE 'PEAK VOLTAGE' CAN BE
EITHER POSITIVE OR NEGATIVE (WHICH +/- REFER TO DIRECTION OF FLOW)
✔✔A SINE WAVE HAS A VALUE OF 0 HOW MANY TIMES - ✔✔3
0/180/360
✔✔FREQUENCY IS MEASURED IN - ✔✔HERTZ
✔✔DEGREE IN SEPARATION BETWEEN EACH PHASE - ✔✔120
✔✔NUMBER OF TIMES A SINE WAVE PATTERN OCCURS IN ONE SECOND IS
KNOWN AS - ✔✔FREQUENCY
✔✔RMS IS FOUND BY MULTIPLYING THE PEAK AMPLITUDE BY - ✔✔O.707
0.707XPEAK
✔✔HOW MANY WIRES IN A DELTA SYSTEM - ✔✔3
NO NUETRAL
DELTA NEEDS HELP
✔✔HOW MANY WIRES IN A WYE SYSTEM - ✔✔4
WITH NUETRAL
WYE STANDS ALONE
