Refrigeration AC (RAC) Theory 1st Year - ITI Nimi Mock Test (All Topics)

Mock Test for Refrigeration and AC Theory - ITI 1st Year 

This test designed to help ITI students prepare for NIMI-based Refrigeration and A.C. Theory First Year exams. It includes all topics practice questions, explanations, and is aligned with the latest curriculum of  Ncvt.

Included Topics

1. Fitting and Sheet metal
2. Electrical and Electronics
3. Welding
4. Basic Refrigeration
5. Refrigerator direct cool
6. Frost free and Inverter refrigerator
7. Compressor and Motor
8. Condenser, Drier and expansion valve
9. Thermal insulation and Window A/C
10. Split A/C (Wall, Floor and Ceiling)

Test Format:

• 4 options per question
• 1 mark for each correct answer
• No negative marking
• Time limit for one question is 60 seconds
• Language Options: English, Hindi, Marathi, Bangali, Tamil, Telugu, Gujarati and Punjabi

Sample Questions:

• Total Questions: 5
• Language: English
• Topic: Basic Refrigeration

Q1. Which compressor dome handles high pressure and high temperature vapour?

1. Semi hermetic reciprocating compressor
2. Open type reciprocating compressor
3. Hermetic reciprocating compressor
4. Hermetic rotary compressor

Q2. What is the reason for contraction of water while heating at 0°C temperature?

1. Above critical temperature
2. Below critical temperature
3. Above critical pressure
4. Below critical pressure

Q3. What is the capacity of doing work?

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

Q4. What is the effect of pressure of a gas when temperature is kept constant?

1. Varies inversely with volume
2. Varies proportionally with volume
3. No changes with volume
4. Equal to the volume

Q5. Which preventive measure should be done after pinching?

1. Brazing
2. Gas charging
3. Leak testing
4. Vacuuming