Test: I.C. Engines- 1

# Test: I.C. Engines- 1

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## 25 Questions MCQ Test Mechanical Engineering SSC JE (Technical) | Test: I.C. Engines- 1

Test: I.C. Engines- 1 for Mechanical Engineering 2023 is part of Mechanical Engineering SSC JE (Technical) preparation. The Test: I.C. Engines- 1 questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: I.C. Engines- 1 MCQs are made for Mechanical Engineering 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: I.C. Engines- 1 below.
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Test: I.C. Engines- 1 - Question 1

### If compression ratio of an engine working on Otto cycle is increased from 5 to 6, its air standard efficiency will increase by

Test: I.C. Engines- 1 - Question 2

### Carbonisation of coal consists of

Test: I.C. Engines- 1 - Question 3

### In a IC engine The ratio of Indicated work done to frictional losses is 4 : 3. The mechanical efficiency of the engine is

Test: I.C. Engines- 1 - Question 4

Mean effective pressure multiplied by swept volume per second gives.

Test: I.C. Engines- 1 - Question 5

Thermal efficiency of an Diesel cycle is given by

r = Compression ratio
r = Cut off ratio

Test: I.C. Engines- 1 - Question 6

Morse test is conducted on.

Test: I.C. Engines- 1 - Question 7

In diesel engine delay period means.

Test: I.C. Engines- 1 - Question 8

In S.I. engines supercharging will.

Test: I.C. Engines- 1 - Question 9

In C.I. engines injection advance makes knocking

Test: I.C. Engines- 1 - Question 10

A S. I. engine working on C.N.G does not require the following part.

Test: I.C. Engines- 1 - Question 11

For a 6- cylinder engine for evenness of torque firing order is

Test: I.C. Engines- 1 - Question 12

The ctance number of a mixure containing 60% ISO octane and 40% n - heptane is .

Test: I.C. Engines- 1 - Question 13

With increase in temperature of intake air, I.C. engine efficiency.

Test: I.C. Engines- 1 - Question 14

Which of the following engines deve lops maximum brake power

Test: I.C. Engines- 1 - Question 15

For same compression ratio and for same heat added

Test: I.C. Engines- 1 - Question 16

Piston compression rings are made of which of the following

Test: I.C. Engines- 1 - Question 17

Knocking tendency in SI engine reduces with increase in

Test: I.C. Engines- 1 - Question 18

The maximum limit of air fuel ratio for petrol is

Test: I.C. Engines- 1 - Question 19

Knocking in C.I. engine occurs during which stage of combustion.

Test: I.C. Engines- 1 - Question 20

In CI engine the Air fuel mixure is

Test: I.C. Engines- 1 - Question 21

The area inside an indicator diagram represents

Test: I.C. Engines- 1 - Question 22

The relationship between swept volume (Vs) clearance volume (Vc) and compression ratio (r) is

Detailed Solution for Test: I.C. Engines- 1 - Question 22

For calculating compression ratio you should know the swept volume and clearance volume of the engine cylinder. Then you can use the relation,

r= 1+(Vs/Vc).

Where, r- compression ratio, Vs- Swept Volume and Vc- Clearance Volume.

Test: I.C. Engines- 1 - Question 23

Octane no. of a fuel can be increased by adding

Test: I.C. Engines- 1 - Question 24

Methane burns with stoichiometric quantity of a air. The air fuel ratio by weight is

Test: I.C. Engines- 1 - Question 25

For determining ignition quality of CI engines The reference fuel used are:

## Mechanical Engineering SSC JE (Technical)

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## Mechanical Engineering SSC JE (Technical)

6 videos|97 docs|55 tests