NPCIL Stipendiary Trainee Maintainer Electrician Advanced Paper 2019

NPCIL Stipendiary Trainee Maintainer Electrician Advanced Paper | NPCIL Stipendiary Trainee Electrician Category II (ST/TM) Paper 2019 at Rawatbhat Rajasthan Site

In India, mains Supply voltage used for domestic electric appliances is _________volt.
(a) 110
(b) 48
(c) 220
(d) 5

Single phase induction motor is made self-start by using _________
(a) Resistance
(b) Capacitor
(c) Inductor
(d) Semi-Conductor

Which of following is used for short circuit protection of electrical circuit ?
(a) Resistance
(b) Overload Relay
(c) Contactor
(d) Fuse

The unit of capacitance is ____________
(a) Amprere
(b) Farad
(c) Hennery
(d) Volt

___________electrolyte is used in lead acid battery.
(a) NaOH
(b) H2SO4
(c) HCl
(d) LiSO4

What is the voltage rating of single dry cell (Zinc-Carbon)
(a) 1.5 Volt
(b) 2.2 Volt
(c) 2.4 Volt
(d) 3.6 Volt

The equivalent resistance of three resistances, each of 3 ohm connected in parallel, will be _______Ohm.
(a) 3
(b) 6
(c) 9
(d) 1

How many minimum diodes are required in full wave bridge rectifier ?
(a) 1
(b) 3
(c) 4
(d) 8

Which one of the following is NOT an insulator ?
(a) Mica
(b) Graphite
(c) Plastic
(d) Porcelain

Which of the following electrical machine has highest efficiency ?
(a) Synchronous Motor
(b) DC motor
(c) Induction motor
(d) Transformer

What parameter does not change from input to output of a Power transformer ?
(a) current
(b) voltage
(c) frquency
(d) All of these

The squirrel cage induction motor has _______slip ring.
(a) 0
(b) 2
(c) 3
(d) 1

___________wire is used to prepare electrical heater.
(a) Steel
(b) Copper
(c) Nichrome
(d) Aluminium

A region around a stationary electric charge has ___________
(a) Electric and magnetic field
(b) Electric field
(c) Magnetic field
(d) Gama field

Which induction motor will be the largest in size ?
(a) 45 kW, 2975 RPM
(b) 45 kW, 1475 RPM
(c) 45 kW, 975 RPM
(d) All are equal size

Which one of the following is NOT a part of transformer ?
(a) Tank
(b) Conservator
(c) Radiator
(d) Exciter

Solar panel uses ______plate for electricity generation.
(a) Iron
(b) Copper
(c) Photo voltaic
(d) Zinc

Capacity of battery is expressed in ___________
(a) kWh
(b) kW
(c) AH
(d) HP

A switch is always connected in series with ___________
(a) neutral wire
(b) phase wire
(c) ground wire
(d) any where