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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 DATE2023-07-15
EXAM TIME15:00:17:00
Question Paper MOCK TEST

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TRADE THEORY

Which is sensed by TEV in response to heat load variation?

  1. Evaporating temperature
  2. Sub cool in liquid line
  3. Discharge temperature
  4. Super heat in suction line

Which component these symbols represent?

  1. Motor
  2. Overload protector
  3. Capacitor
  4. Relay

What is the resistance level of start winding in a refrigerator’s compressor motor?

  1. Low resistance
  2. Medium resistance
  3. High resistance
  4. Zero resistance

Which AC connects the indoor evaporator unit with outdoor condenser unit through a wall hole of 7cm diameter?

  1. Industrial air-conditioner
  2. Window air-conditioner
  3. Split air-conditioner
  4. Central air-conditioner

What is the name of component symbolized?

  1. DIAC
  2. Capacitor
  3. Transistor
  4. SCR

What is the name of process that changes the used refrigerant to new product?

  1. Manufacture
  2. Recover
  3. Recycle
  4. Reclaim

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

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

Which is the point angle of a twist drill used for zinc alloy?

  1. 90o
  2. 118o
  3. 100o
  4. 125o

What is the type of condenser used in direct cool refrigerator?

  1. Tube in tube
  2. Wire mesh
  3. Shell and tube
  4. Fin and tube

What is the advantage of sealed system compared to open type system?

  1. No shaft seal is required
  2. Any refrigerant can be used
  3. Cylinder lubrication is easier
  4. Mechanical efficiency is greater

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

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

How the ability of a conductor is called if it induces the voltage in the same conductor?

  1. Conductance
  2. Resistance
  3. Capacitance
  4. Self inductance

Which method is used to connect the swaged joint in copper tubes?

  1. Fusion welding
  2. TIG welding
  3. Lead soldering
  4. Silver brazing

Which type of evaporator is used in window air conditioner?

  1. Fins and tube
  2. Plate and tube
  3. Fins and plate
  4. Bare tube

What is the name of the soldering tool?

  1. Soldering gun
  2. Soldering iron
  3. Blow lamp
  4. Pot and ladle

Which component secures the hose with regulator union in gas welding set?

  1. Steel wire
  2. Hose clamp
  3. Fibre clip
  4. Iron chain

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

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

Which safety device is used for compressor motor in window air conditioner?

  1. Over load protector
  2. Running capacitor
  3. Starting capacitor
  4. Relay

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

  1. Evaporator outlet
  2. Accumulator
  3. Sensor clamp
  4. Capillary tube

What is the type of refrigeration system?

  1. Mechanical compression
  2. Vapour absorption
  3. Steam - jet
  4. Water vapour

What is the part marked as X?

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

What is the part marked as X?

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

What is the temperature maintained in the refrigerator freezer?

  1. - 45oC
  2. - 15oC
  3. 0oC
  4. - 65oC

Where the refrigerant vapour is compressed in scroll compressor?

  1. Between fixed and orbiting scrolls
  2. Crank and connecting rod
  3. Eccentric and cylinder
  4. Fixed and reciprocating scroll

Which type of diode is used for communication circuits?

  1. Switching diode
  2. Rectifier diode
  3. Zener diode
  4. Signal diode

What is the part marked as X?

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

What is the desirable property of POE lubricant?

  1. Miscible with HFCs
  2. Toxic gas produced during brazing
  3. Hygroscopic
  4. Forms acid with moisture

Which meter indicates the true power directly in an electrical circuit?

  1. Ammeter
  2. Watt meter
  3. Volt meter
  4. Ohm meter

What is the name of active component used in electronic circuit?

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

What is the component used in liquid line of refrigerator?

  1. Filter drier
  2. Condenser
  3. Compressor
  4. Evaporator

What is the ozone depleting potential of R134a Refrigerant?

  1. 1
  2. 2
  3. 3
  4. 0

Which factors produce work?

  1. Force and distance
  2. Time and distance
  3. Force and power
  4. Force and time

Which application uses the capillary tube expansion device?

  1. Commercial AC plants
  2. Hospital IAQ systems
  3. Industrial ice plants
  4. Domestic RAC units

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

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

What is the cooling capacity of 0.5 TR in BTU / hr?

  1. 12000
  2. 6000
  3. 24000
  4. 18000

What is the flame temperature range of oxy acetylene gas flame?

  1. 1800oC to 2200oC
  2. 3100oC to 3300oC
  3. 2400oC to 2700oC
  4. 2700oC to 2800oC

Which type of expansion device is used in frost free refrigerator?

  1. Automatic expansion valve
  2. Float valve
  3. Capillary tube
  4. Thermostatic expansion valve

What is the part marked as X in flaring set?

  1. Chamfer
  2. Flaring yoke
  3. Flaring block
  4. Wing nut

WORKSHOP CALCULATION AND SCIENCE

What is the boiling point of water?

  1. 212oC
  2. 0oC
  3. 100oC
  4. 32oC

What are fundamental units?

  1. Length, Mass, Area
  2. Length, Mass, Volume
  3. Length, Pressure, Volume
  4. Length, Mass, Time

How many watts for 1 horse power in British system?

  1. 726 watts
  2. 736 watts
  3. 756 watts
  4. 746 watts

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

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

Which metal contains iron as a major content?

  1. Bronze metal
  2. Brass metal
  3. Ferrous metal
  4. Zinc

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

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

ENGINEERING DRAWING

Identify the name of tool?

  1. Cutting plier
  2. Aviation shear
  3. Hawk-billed shear
  4. Double cutting shear

Which drawing dimension is correct as per IS standard?

Identify the conventional symbol of material?

  1. Glass
  2. Water
  3. Concrete
  4. Asbestos

Identify the name of instrument?

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

Which single stroke inclined letter 'A' is correct as per IS standard?

Identify the name of tool?

  1. Open end spanner
  2. Ring spanner
  3. Adjustable spanner
  4. Combination spanner

EMPLOYABILITY SKILLS

Women are soft-spoken and forgiving….

  1. gender stereotype
  2. sometimes
  3. always false
  4. always true

When you speak to a person, you need to _______

  1. Stare at the person
  2. Look at the person in a friendly manner
  3. Look at the floor
  4. Look away from the person

Which investment is considered for deciding the status of manufacturing enterprises?

  1. Working capital
  2. Plant and machinery
  3. Salary of employees
  4. Building and land

Which one is a social networking site?

  1. Lotus notes
  2. Mozilla
  3. Outlook express
  4. Face book

Needs, wants, luxury correct examples are….

  1. i) need-eating out ii) want-house to live iii) luxury-costly phone
  2. i) need-house to live ii) want-eating out iii) luxury-costly phone
  3. i) need- costly phone ii) want- eating out iii) luxury- house to live
  4. i) need-costly phone ii) want- house to live iii) luxury-eating out

Which one is an exclamatory sentence?

  1. It is a beautiful house.
  2. Your house is beautiful.
  3. What a beautiful house it is!
  4. Is it a beautiful house?

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

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

Which one is a web browser?

  1. Hot mail
  2. Internet explorer
  3. Face book
  4. Outlook express

Which of these is not an online job search platform?

  1. LinkedIn
  2. Glassdoor
  3. Snapchat
  4. Indeed

____ tab is used to insert charts, graphs, images and page number into a word file.

  1. Formatting tab
  2. Insert tab
  3. Standard tab
  4. Review pane

Which one is NOT a storage device?

  1. USB flash drive
  2. Video tape
  3. Memory card
  4. Printer

Computer network that spans a regional, national or global area is called __________

  1. CAN
  2. LAN
  3. MAN
  4. WAN

People from all religions or no religions are treated equally means……

  1. religious
  2. democratic
  3. non secular
  4. secular Country

Which among the following is not an Online payment application?

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

….. is a brief statement about purpose and principles of the Constitution.

  1. The Preamble
  2. Unit
  3. Syllabus
  4. Module

Which one of the following is a good office etiquette?

  1. One should dress formally
  2. One should not be punctual to work
  3. One should litter one’s work place
  4. One should have fancy mobile ring tone

In which orientation, the text is printed width wise?

  1. Portrait
  2. Landscape
  3. Width
  4. Margin

Which one is an output device of the computer?

  1. Keyboard
  2. MIC
  3. Mouse
  4. Printer

Which one is a search engine?

  1. Flicker
  2. Hotmail
  3. Face book
  4. Google

Pronunciation refers to___________.

  1. punctuation
  2. consonant
  3. production of sound
  4. diphthong

The expansion of WAN is ___________

  1. Wide Area Name
  2. Web Aided Network
  3. Web Assigned Name
  4. Wide Area Network

Which of these is the full form of SWOT?

  1. Speak Work Openly Together
  2. Strong World Olympic Team
  3. Special Wellness Organization Theme
  4. Strength Weakness Opportunity Threat

Spread sheets are saved with extension___________

  1. .mp3
  2. .doc
  3. .xls
  4. .pdf

Which one is 3P’s of public speaking?

  1. Perfection, Performance, Painstaking
  2. Prepare, Practice, Perform
  3. Possess, Present, Practice
  4. Publish, Pleasant, Perfect

Choose the odd word.

  1. please
  2. paper
  3. sorry
  4. thanks

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