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ITI Previous Papers REFRIGERATION AND AIR CONDITIONING TECHNICIAN(NSQF)

PREVIOUS YEAR PAPER
TRADE NAMEREFRIGERATION AND AIR CONDITIONING TECHNICIAN(NSQF)
TRADE TYPEEngineering
YEAR1
EXAM DATE2023-07-13
EXAM TIME09:00:11:00
Question Paper MOCK TEST

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TRADE THEORY

What is the part marked as X in welding blow pipe?

  1. Oxygen inlet connection
  2. Handle
  3. Neck pipe with nozzle
  4. Mixing chamber

What is the name of part marked as X in snips?

  1. Black
  2. Bolt
  3. Handle
  4. Stops

What is the energy of a body by virtue of its position?

  1. Potential energy
  2. Electrical energy
  3. Wind energy
  4. Kinetic energy

Which gas is produced by the chemical reaction of carbide and water?

  1. Oxygen
  2. Acetylene
  3. Nitrogen
  4. Carbon dioxide

What is the name of component?

  1. DIAC
  2. TRIAC
  3. FET
  4. SCR

What is the component used in frost free refrigerator?

  1. Over load protector
  2. PTC relay
  3. Defrost heater
  4. Evaporator fan motor

Which control device is used to maintain the room air temperature?

  1. Thermostat
  2. Selector switch
  3. OLP
  4. Relay

What is the test pressure of condenser coils during manufacture?

  1. 250 psig
  2. 150 psig
  3. 450 psig
  4. 350 psig

Which refrigerant blend is highly flammable?

  1. HCFC
  2. CFC
  3. HFC
  4. HC

Which is a positive displacement compressor?

  1. Centrifugal compressor
  2. Scroll compressor
  3. Water pump
  4. Oil pump

What is the process of accumulation of ice on the surface of evaporator?

  1. Frosting
  2. Evacuating
  3. Melting of frost
  4. Defrosting

How the refrigerants are classified based on heat absorption by latent and sensible heat?

  1. Organic and inorganic
  2. Halocarbons and hydrocarbons
  3. Zeotropic and azeotropic
  4. Primary and secondary

Which component defrosts in frost free refrigerator?

  1. Capillary tube
  2. Thermostat
  3. Bulb
  4. Heater

What is the temperature set in thermostat that stops the compressor motor?

  1. Cut out
  2. Differential
  3. Cut in
  4. Range

What is the rate of doing work?

  1. Duty
  2. Force
  3. Velocity
  4. Power

What is the name of part marked as X in outside micro meter?

  1. Lock nut
  2. Barrel
  3. Spindle
  4. Steel frame

What is the angle of the tip of centre punch?

  1. 120o
  2. 30o
  3. 60o
  4. 90o

Which valve is closed during compression stroke in reciprocating compressor?

  1. Discharge valve
  2. Suction valve
  3. Service valve
  4. Liquid line valve

Which operation is in progress with capacitor?

  1. Testing
  2. Discharging
  3. Cleaning
  4. Charging

What is the use of capacitor in PSC operated induction motor?

  1. Decrease the power factor
  2. Improve the power factor
  3. Decrease the starting torque
  4. Cancel the starting torque

What is the part marked as X?

  1. Condenser
  2. Muffler
  3. Evaporator
  4. Discharge line

Which control opens the compressor motor circuit in the event of continuous overload?

  1. Thermostat
  2. Bimetal strip
  3. Fusible plug
  4. Spring loaded relief valve

What is the component marked as X in refrigerator?

  1. Evaporator
  2. Fin type condenser
  3. Compressor
  4. Capillary

Where the dehydrator is installed in a refrigeration system?

  1. Capillary line
  2. Suction line
  3. Liquid line
  4. Discharge line

Which type of insulating material is used for making ice box to cool beverages?

  1. Thermocol
  2. Fibre glass
  3. Glass wool
  4. Tar felt

What is the capacity of doing work?

  1. Force
  2. Power
  3. Energy
  4. Work

Which refrigerant is used in domestic refrigerator?

  1. R 32
  2. R 407 c
  3. R 22
  4. R 134 a

What is the category of R 407c refrigerant?

  1. Azeotropes
  2. Organic
  3. Zeotropes
  4. Inorganic

What is the component used in refrigerator wiring?

  1. Over load protector
  2. Defrost heater
  3. PTC relay
  4. Evaporator fan motor

Which insulating material is poured as liquid?

  1. Poly Urethane Foam (PUF)
  2. Cork Board
  3. Wood Shave
  4. Glass Wool

What is the diameter of liquid line used with 5 TR if the suction line is 7/8” OD by up flow?

  1. 1/2” OD
  2. 5/16” OD
  3. 3/4” OD
  4. 3/8” OD

Which is used to clean the condenser fins of a refrigerator?

  1. Fin comb
  2. Painting brush
  3. Diluted acid
  4. Soap solution

Which operation is progressed on the job?

  1. Reaming
  2. Drilling
  3. Marking
  4. Tapping

What is the name of instrument used to check high resistance?

  1. Wattmeter
  2. Voltmeter
  3. Megger
  4. Ammeter

What is the unit of heat in M.K.S system?

  1. KV (Kilo Volt)
  2. B.T.U (British thermal unit)
  3. K.W (Kilo Watt)
  4. K.Cal (Kilo Calorie)

What is the type of induction motor?

  1. Single phase induction motor
  2. Squirrel cage induction motor
  3. Slip ring induction motor
  4. DC motor

What is the part marked as X?

  1. Fan
  2. Condenser
  3. Blower motor
  4. Blower

Which winding of compressor motor is directly connected across voltage relay coil?

  1. Main winding
  2. Starting winding
  3. Running winding
  4. Auxiliary winding

WORKSHOP CALCULATION AND SCIENCE

What is the ratio of power output to power input?

  1. Work
  2. Energy
  3. Acceleration
  4. Efficiency

Which property of metal has its power of returning to its original shape after the applied force is released?

  1. Elasticity
  2. Plasticity
  3. Malleability
  4. Tenacity

What is termed as the quantity of matter contained in a body?

  1. Volume
  2. Specific gravity
  3. Density
  4. Mass

How many millimetres are there in 1 inch?

  1. 2.54 mm
  2. 2.45 mm
  3. 25.4 mm
  4. 24.5 mm

Which one is heat insulator?

  1. Brass
  2. Thermocol
  3. Aluminium
  4. Copper

What is known for the temperature at which any solid melts into liquid?

  1. Latent heat of fusion
  2. Melting point
  3. Latent heat of vaporisation
  4. Boiling point

ENGINEERING DRAWING

Identify the conventional symbol of material?

  1. Glass
  2. Wood
  3. Concrete
  4. Steel

Which drawing dimension is correct as per IS standard?

Identify the name of instrument?

  1. Set square
  2. French curve
  3. ' T ' square
  4. Protractor

What is the trimmed size of A4 sheet?

  1. 594 x 841
  2. 148 x 210
  3. 841 x 1189
  4. 210 x 297

Identify the name of prism?

  1. Square prism
  2. Hexagonal prism
  3. Triangular prism
  4. Rectangle prism

Compass used to draw for___.

  1. circle
  2. square
  3. triangle
  4. rectangle

EMPLOYABILITY SKILLS

Which one is a “Don’t” of information security?

  1. Take backup data of your PC periodically
  2. Encrypt laptop hard drive and mobile devices
  3. Disclose password to anyone
  4. Use hard to guess passwords

What does 'M' stand for in SMART goal?

  1. Measurable
  2. Manageable
  3. Memorable
  4. Meaningful

Choose the correct tense of the verb. “I __________music when I was child”

  1. will learn
  2. am learning
  3. learnt
  4. learn

Today's weather is going to be _________________.

  1. Warm
  2. Hopeful
  3. Urgent
  4. Blue

Which device is used to connect telephone line to a PC?

  1. Modem
  2. Hard disk
  3. Printer
  4. Monitor

___________ are the abilities and qualities you have as a person that helps you grow well in life and career.

  1. Opportunities
  2. Personal weaknesses
  3. Threats
  4. Personal Strengths

Noise, physical discomfort of hotness or coldness comes under _________

  1. language barrier
  2. environment barrier
  3. culture barrier
  4. perception barrier

In MS Paint, which extension is not supported _________

  1. .doc
  2. .jpeg
  3. .png
  4. .gif

Curriculum vitae is also known as ___________ .

  1. circular
  2. leave application
  3. job application form
  4. resume

Which one is a web based accounting?

  1. BUSY
  2. WINGS
  3. TALLY
  4. Software designed for modern business

What does 'A' in SMART stand for?

  1. Action
  2. Ambitious
  3. Awareness
  4. Achievable

Feedback helps to __________.

  1. Improve the service
  2. Modify the process or system
  3. Meet customer satisfaction better
  4. All of the above

Which one is a brain of computer?

  1. Hard disk
  2. CPU
  3. Keyboard
  4. Monitor

Fill in the blank with suitable place preposition. “My house is ___________the third floor”

  1. in
  2. under
  3. at
  4. on

Which of the following websites are not popular for finding jobs?

  1. Sheroes.com
  2. Naukri.com
  3. Twitter.com
  4. LinkedIn.com

Which of these is an essential step in the problem solving process?

  1. To think deeply about the problem
  2. To follow your instinct
  3. To gather and analyze data
  4. To report the problem to a higher-up

A software application used to enable computer users to locate and access web page is called ___________

  1. web server
  2. website
  3. web browser
  4. email

Which one is NOT a benefit of the role playing?

  1. Builds confidence
  2. Develops listening skill
  3. Develops boredom
  4. Develops creative problem-solving skill

Which of the following is not true?

  1. Only ask relevant questions
  2. Ask each customer the same set of questions.
  3. Establish trust by focusing on customer needs and not on your product.
  4. Ask the questions with a genuine focus on understanding your customer in order to meet their needs

What is the full form of GST?

  1. Goods and Service Tax
  2. Good and Sales Tax
  3. Great Service Tax
  4. Great Sales Tax

Which one is a barrier to speaking?

  1. Nervousness
  2. Lack of time
  3. Poor listening
  4. Reluctant to read

The expansion of RAM is __________

  1. Random Access Memory
  2. Read Access Memory
  3. Read Octet Machine
  4. Random Access Machine

Values are………

  1. Motivates our attitude and action
  2. very costly
  3. all have same value
  4. not punctual

Which among these are not good manners while travelling by public transport?

  1. Follow the instructions of the cabin manager.
  2. Push back our seat without checking with the person on the back seat
  3. Speak in a low voice.
  4. Be polite to fellow passengers and staff.

Which one is a cyber crime?

  1. Sending email
  2. Online purchasing
  3. Chatting with friends
  4. Online gambling

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