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SUB SWITCH BOARD

Professional Development

10 Qs

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Assessment

Quiz

Other, Instructional Technology

Professional Development

Practice Problem

Hard

Created by

Yusnezawati Azizan

Used 11+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Keterangan dibawah adalah skim perlindungan yang

perlu diadakan untuk sesuatu pepasangan sebuah

sub papan suis kecuali

Perlindungan arus rosak ke bumi (Earth Fault protection)

Perlindungan penurunan voltan (Under Voltage)

Perlindungan pembezalayanan jarak (Distance)

Perlindungan arus lampau (Over current)

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Pilih keterangan pengujian pusingan fasa (phase rotation test) yang betul pada bas-bar sub papan suis voltan rendah

R-Y-B, Y-R-B, B-Y-R

R-Y-B, B-R-Y, B-Y-R

R-B-Y, Y-R-B, B-Y-R

R-Y-B, Y-B-R, B-R-Y

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Pilih alat-alat kawalan utama keselamatan yang terdapat pada sub papan suis.

I Alat suis.

II Pemutus litar

III Alat perlindungan arus lebih

IV Alat perlindung arus bocor dan rosak kebumi

I, & III

I, II & III

II, III & IV

I, II, III & IV

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Alat perlindungan pelantik automatik yang biasa dipasang pada ‘Moulded Case Circuit Breaker’ (MCCB) ialah:-

I Geganti arus lebih (O/C Relay)

II Geganti kerosakan Bumi (E/F Relay)

III Thermal & Magnetic tripping

IV Megnatic-hydraulic tripping

I, & III

I, II & III

II, III & IV

I, II, III & IV

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Sesebuah papan suis utama voltan rendah akan dilengkapi dengan :-


i. lampu penunjuk

ii. jangka arus

iii. alatubah arus

iv. jangka volt

i sahaja

i dan ii sahaja

ii, iii dan iv sahaja

semua di atas

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Pemutus Litar Udara (ACB) biasanya mendapat bekalan masukan dari :-

ACB yang lain

Step Up transformer

Step down transformer

Current transformer (alatubah arus)

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Sebuah alatubah arus tercatat nilai 15VA. Apakah yang dimaksudkan dengan nilai tersebut ?

nilai rintangan alatubah arus

nilai kuasa bagi alatubah arus

nilai galangan bagi alatubah arus

nilai beban tanggungan bagi alatubah arus

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