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ITI Previous Papers Electrician (NSQF)

PREVIOUS YEAR PAPER
TRADE NAMEElectrician (NSQF)
TRADE TYPEEngineering
YEAR2
EXAM DATE2024-08-25
EXAM TIME15:00:17:00
Question Paper MOCK TEST

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TRADE THEORY

What is the formula for shunt field current Rsh of a DC shunt generator if VT Terminal voltage Eg = generated EMF?

  1. Ish = VT x Rsh
  2. Ish = Eg / Rsh
  3. Ish = Eg x Rsh
  4. Ish = VT / Rsh

How to compensate the de-magnetizing effect due to armature reaction in an alternator?

  1. Reducing the field excitation current
  2. Reducing the speed of alternator
  3. Increasing the field excitation current
  4. Increasing the speed of alternator

Which supply indicates by the colour of conductor exhibited on Red, Blue and Black?

  1. Single phase AC system
  2. Apparatus AC system 3 phase
  3. Supply AC system 3 phase
  4. Supply DC 3 wire system

What is the function of inverter?

  1. Convert pulsating DC into pure D.C
  2. Convert A.C to D.C
  3. Convert D.C to A.C
  4. Smoothening A.C sine wave

Which control system consumes very low power for motion control in AC and DC motors?

  1. Drives control
  2. Field control
  3. Voltage control
  4. Armature control

What is the purpose of output transformer in inverters?

  1. Step up input AC
  2. Step down input AC
  3. Step up AC from amplifier
  4. Step down AC from amplifier

Which type of DC armature winding has the front pitch (YF) greater than back pitch (YB)?

  1. Wave winding
  2. Progressive winding
  3. Retrogressive winding
  4. Lap winding

What is the name of the AC single phase motor as shown in the diagram?

  1. Universal motor
  2. Permanent capacitor motor
  3. Shaded pole motor
  4. Repulsion motor

What is the name of the test as shown in the figure?

  1. Open circuit test
  2. Shorted commutator test
  3. Grounded commutator test
  4. Drop test

What is the reason for effective utilisation of the conductor cross- sectional area in the transmission of DC as compared to AC?

  1. No heat loss
  2. No skin effect
  3. No power loss
  4. No corona loss

What is the formula to calculate the slip speed (Nslip) of 3 phase squirrel cage in induction motor?

What is the purpose of LCD on basic operator panel in D.C drive or A.C drive?

  1. Measure the speed
  2. Calculate the speed
  3. Monitor the parameter
  4. Detect the load current

What is the name of the generator as shown in the circuit?

  1. DC compound generator
  2. Separately excited DC generator
  3. DC shunt generator
  4. DC series generator

What is the purpose of PROG / DATA button in BOP of AC drive?

  1. To change the parameter setting
  2. To display the values of the frequency and current
  3. To display the direction of rotation forward / REV
  4. To store the entered data and show the factory stored data

Which insulating material belongs to class ‘B’ insulation?

  1. Leatheroid paper
  2. Cotton
  3. Bamboo
  4. Fiberglass

What is the minimum and maximum value of resistor with four colour bands of red, violet, orange and gold respectively?

  1. 25650Ω - 28350Ω
  2. 24700Ω - 27300Ω
  3. 23750Ω - 26250Ω
  4. 22400Ω - 33600Ω

Why the series field is short circuited at the time of starting in the differential compound motor?

  1. To decrease the back EMF
  2. To decrease the speed of motor
  3. To reduce the starting current
  4. To maintain the proper direction of rotation

Which condition is to be satisfied before parallel operation of an alternators?

  1. Rating must be same
  2. Stator impedance must be same
  3. Rotor impedance must be same
  4. Phase sequence must be same

What is the full form of PCB?

  1. Panel Control Board
  2. Printed Circuit Board
  3. Prevent Circuit Breaker
  4. Power Circuit Breaker

Which circuit breaker is used as a switch and protective device in the domestic wiring circuit?

  1. Miniature circuit breaker
  2. Air circuit breaker
  3. Earth Leakage circuit breaker
  4. Moulded case circuit breaker

What is the purpose of tapes in winding?

  1. Wrap the conductor
  2. Bind the coils
  3. Insulate exposed conductors
  4. Insulate slots

How pole pitch is measured in terms of slots in AC winding?

Which electronic circuit generates A.C signal without input?

  1. Filter circuit
  2. Oscillator circuit
  3. Amplifier circuit
  4. Rectifier circuit

What is the name of the substation that all equipment of substation is installed within the station building?

  1. Outdoor substation
  2. Indoor substation
  3. Pole mounted substation
  4. Plinth mounted substation

What is the purpose of thermal over load relay in control panel?

  1. Protect the motor from over loading
  2. Switching ON/OFF the circuit
  3. Control the circuit based on time delay
  4. Protect the circuit from earth fault

What is the purpose of pole shoe in DC generator?

  1. Increase the air gap
  2. Minimize the magnetic losses
  3. Increase the field strength
  4. Spread out flux uniformly in the air gap

Which speed is called as synchronous speed in 3 phase induction motor?

  1. No load speed
  2. Full load speed
  3. Relative speed between stator and rotor
  4. Rotating magnetic field speed

What is the advantage of on-line UPS over offline UPS?

  1. Works with transition problems
  2. It gives variable output frequency
  3. Supplies constant power output
  4. Free from change over and transition problems

Which is the main application of SCR?

  1. Amplifier
  2. Multi vibrators
  3. Speed control of motors
  4. Oscillators

Which method of speed control can give two or more fixed synchronous speeds in the 3 phase motor?

  1. By changing applied frequency
  2. By rotor rheostat control
  3. By changing the applied voltage
  4. By changing the number of stator poles

Which type of motor is used for small table fan?

  1. Shaded pole motor
  2. Capacitor start capacitor run motor
  3. Universal motor
  4. Repulsion motor

Which method is used to control the speed of 3 phase induction motor from stator side?

  1. By changing the applied frequency
  2. By rotor rheostat control
  3. By injecting emf in rotor circuit
  4. By injecting frequency in rotor circuit

When the two lamps become bright and one lamp become dark during paralleling of two alternators?

  1. Voltages and frequencies are equal
  2. Voltages and phase sequence are equal
  3. Terminal voltages are equal
  4. Both the alternators supplies same frequency

What is the function of the timer in automatic star delta starter?

  1. Switch OFF at pre set time
  2. Trip at over load
  3. Switch ON at pre set time
  4. Change from star to delta

What is the input ripple frequency (Fin) of full wave rectifier?

  1. Fin = 2 Fin
  2. Fin = ½ F
  3. Fin = √2 Fin
  4. Fin = Fin

Why the pre heating is necessary for the rewounded AC motors before varnishing?

  1. To dry out the moisture in the windings
  2. To dry out the varnish quickly in winding
  3. To decrease the insulation resistance value
  4. To easy flow of varnish in the winding

How the control circuit voltage for a contactor are selected?

  1. As per rated current
  2. As per supply voltage
  3. As per the type of supply
  4. As per no volt coil rating

What is the condition for the maximum efficiency of a DC generator?

  1. Eddy current loss is equal to hysteresis loss
  2. Variable losses is less than constant losses
  3. Variable losses is equal to constant losses
  4. Variable losses is more than constant losses

WORKSHOP CALCULATION SCIENCE

What is the name of a booklet, the rates of various terms are indicated?

  1. Price bunch
  2. Price bank
  3. Price tag
  4. Price catalogue

What is the formula for (a-b)2?

  1. a2 + 2ab + b2
  2. -a2 - 2ab - b2
  3. a2 - 2ab + b2
  4. a2 - 2ab - b2

What is the formula for amx an?

  1. am-n
  2. am+n
  3. amn
  4. n.am

What is the term used for the method of calculating various quantities and expenditure on a particular job or process?

  1. Plan
  2. Specification
  3. Drawing
  4. Estimation

Which is used to reduce the friction in machine parts?

  1. Lubricants
  2. Kerosene
  3. Petrol
  4. Water

What is the purpose of a lubricant?

  1. To increase friction
  2. To increase the pressure
  3. To reduce friction
  4. To reduce pressure

ENGINEERING DRAWING

Which is ball peen hammer?

What is the name of the symbol?

  1. Loud speaker
  2. Microphone
  3. Dynamic microphone
  4. Condenser microphone

Identify the wave form.

  1. Sine wave
  2. Square wave
  3. Triangle wave
  4. Saw-tooth wave

Identify the symbol for direct and alternating current.

Which device is used to start and stop a motor?

  1. Slip ring
  2. Starter
  3. Rotor
  4. Stator

Which of the following is AC ammeter?

EMPLOYABILITY SKILLS

Magnificent, sharp, lengthy, bright, - are examples of ______

  1. nouns
  2. pronouns
  3. describing words
  4. action words

A Beautyparlor staff follows environment friendly actions by means of _______

  1. using plastic cups.
  2. using plastic gloves.
  3. reusing the consumable items.
  4. using non plastic materials, disposing wastes in an environment friendly way.

While applying for a job, important information should mension in the covering letter is ______

  1. salary expectations.
  2. education details.
  3. reasons of suitable for the role.
  4. hobbies.

When your team's project is unsuccessful, what will you do as a leader?

  1. Blame the team for the failure
  2. Ignore the team members
  3. Encourage learning from mistakes
  4. Scold them

Fill up the blanks with suitable words so as to become a meaningful sentence.

  1. are, next
  2. are, next to
  3. is, next
  4. is, next to

If you want to apply for jobs through Naukri.com, what you will do?

  1. Match the skills with the job description
  2. Apply to all the jobs listed
  3. Ignore the job descriptions
  4. Select all the cities where jobs are available

How does design thinking help solve problems?

  1. By guessing solutions randomly
  2. By understanding what people need and improving solutions
  3. By trusting on personal assumptions
  4. By following a strict process

What are some resource related problems in a workplace?

  1. More space for less machines
  2. Shortage of materials and space
  3. Less operators
  4. Electricity

While working in a project, you understand that you did a mistake. What should you do?

  1. Ignore the mistake and continue working
  2. Blame team members for the mistake
  3. Tell your boss about the mistake
  4. Wait for someone else to find out your mistake

If a teammate is struggling to complete their assigned task, what should you do?

  1. Ignore their struggle and focus on your own tasks
  2. Offer to help and support them to complete their task
  3. Complain to the superior about their lack of contribution
  4. Criticize them for not being efficient

Which among the following is not an Online payment application?

  1. Instagram
  2. BHIM UPI
  3. Google Pay
  4. Banking Applications

You have an Instagram page for jewellery business. What should you do to connect with viewers?

  1. Share daily updates about your business as Stories on social media
  2. Post dance reels
  3. Post cooking videos
  4. Post about a T.V. show you like

Learning a new skill to do fundamentally the same nature of task is called _______

  1. Reskilling
  2. Technician
  3. Upskilling
  4. Semi-skilled

Important skills required for the future of work is _______

  1. Master internet skills.
  2. Learn making reels and TikTok videos.
  3. Avoid learning new skills.
  4. Avoid building professional relationships.

Which is an example of a self-employment?

  1. Driving for a taxi company
  2. Working full-time at a company
  3. Teaching subjects or skills as a personal tutor
  4. Being a student at a university

_________ is an activity where students who finished their studies from institute and come to talk to the present students.

  1. Conference
  2. Campus interview
  3. Alumni Engagement
  4. Job mela

What is a job portal?

  1. A building where you go to find work
  2. A website where companies post jobs and people can search and apply for them
  3. A special room where job interviews happen online
  4. A place where you can play games and talk to friends

What are some advantages of informal communication at the workplace?

  1. Helps people work together better
  2. Makes people talk less
  3. Creates a strict environment at work
  4. Makes things more official at work

While making a business plan, which is not required to mention?

  1. Business idea
  2. Personal interests and hobbies
  3. Future growth strategies
  4. Startup costs

An entrepreneurial mindset means to _______

  1. not taking any risk
  2. identify opportunities and Use them for your benefit
  3. not setting any goal
  4. think only about profit

What is the main purpose of the Skill India Digital Platform?

  1. To provide financial assistance for job seekers
  2. To offer offline training programs
  3. To promote international job opportunities
  4. To facilitate online learning and skill development

If a co-worker asks for a support with a task, proper way of responding is _________

  1. sure, I can help. What do you need?
  2. i am too busy right now.
  3. ask, you don't even know this much?
  4. send a formal request via email.

Which is an 'App' based Gig economy, helps people in part time job?

  1. Home catering
  2. Permanent employee
  3. Independent contractor
  4. Swiggy

What describes "Human Resources" in a furniture manufacturing company?

  1. its profit
  2. its products
  3. its sales record
  4. its employees

When a machine operator suddenly face a problem, and quickly finds another way to do the work is called as ______

  1. Integrity
  2. Honesty
  3. Adaptability
  4. Sincerity

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