AFCAT 2022 EKT – Mechanical Mock Test with Answers Key Free

Looking for AFCAT Mock Test EKT-Mechanical Mock test (For Technical Candidates)? . Get the mock test for AFCAT EKT-Mechanical Exam (For Technical Candidates) with answer key below . Air Force Common Admission Test (AFCAT) is conducted twice every year for those who wanted to join Indian Airforce . AFCAT EKT is a mandatory test for those who are willing to join technical duty .

AFCAT 2022 EKT - Mechanical Mock Test with Answers Key Free
AFCAT 2022 EKT – Mechanical Mock Test with Answers Key Free

AFCAT Engineering Knowledge Test (EKT) will be conducted for Technical Candidates of 150 marks (50 questions) in addition to the AFCAT Exam of 300 Marks (100 Questions) in online mode.Below we have provided the AFCAT EKT (ME) Branch mock test along with their answer key which is provided at the end . Here, candidates can attempt AFCAT EKT mock test of Mechanical (ME) Subject as per the latest exam pattern and AFCAT syllabus.

AFCAT EKT mock test will help you to understand the type of questions you will face in the actual exam . Giving mock test will help you to understand your weak areas which you need to improve before the actual exam .AFCAT EKT (ME) Mock test is very helpful to test your preparation level .

AFCAT 2022 EKT Mechanical Exam Mock Test with Answers Key Free

Instructions for Candidates: In Mock test their is total number of 50 Questions. For every correct answer you will get 3 marks and 1 marks will be deducted as negative marking for every wrong answer . No marks will be deducted for un-attempted answer . You will get 45 min for the test ,so attempt the mock test below 45 min . You can check your answers with the help of below answer key provided at the end .

Q1. If the centre of a circle is (-6, 8) and it passes through the origin, then equation to its tangent at the origin is

(a) 2y = x

(b) 4y = 3x

(c) 3y = 4x

(d) 3x + 4y = 0


Q2. The liquid is flowing separately through each of two pipes whose diameters are in the ratio of 2:1, if the ratio of the velocities of flow in the two pipes by 1:2, then the ratio of the amounts of the liquid flowing per sec through the pipe will be

(a) 2:1

(b) 1:1

(c) 4:1

(d) 1:8


Q3. If f(x) x +|x2 – 8| then the derivative of f(x) at x = 3 is

(a) 6

(b) 7

(c) 8

(d) -8


Q4. Given P(A) = 1/4, P(B)=1/3 and P(AUB)= 1/2. Value of P(A/B) is

(a) 1/4

(b) 1/3

(c) 1/6

(d) 1/7


Q5. The angle between two vectors a = i+2j-k and b = 2i+j+k is

(a) 30 deg

(b) 45 deg

(c) 60 deg

(d) 90 deg


Q6. Newton is unit of force. It is the unit in

(a) MKS system

(b) CGS system

(c) FPS system

(d) none of these


Q7. A Farad is defined as

(a) stat coulomb /volt

(b) coulomb/volt

(c) coulomb x volt

(d) stat coulomb x volt


Q8. Permeance of a magnetic circuit corresponds to the following quantity in electrical circuit

(a) conductivity

(b) resistivity

(c) conductance

(d) resistance


Q9. Hydrometer is an instrument for measuring

(a) relative humidity

(b) pressure of water

(c) volume of liquids

(d) specific gravity


Q10. Radioactivity is a property of

(a) atomic nuclei

(b) excited electron

(c) gamma rays

(d) ultraviolet light


Q11. A bar of length ‘L ‘ meters extends by ‘ l ‘mm under a tensile force of ‘P’. The strain produced in the bar is

(a) l/L

(b) 0.1 l/L

(c) 0.01 l/L

(d) 0.001 l/L


Q12. A rod is enclosed centrally in a tube and the assembly is tightened by rigid washers. If the assembly is subjected to a compressive load, then

(a) rod is under compression

(b) tube is under compression

(c) both rod and tube are under compression

(d) tube is under tension and rod is under compression


Q13. The shear force and bending moment are zero at the free end of a cantilever beam, if it carries a

(a) point load at the free end

(b) point load at the middle of its length

(c) uniformly distributed load over the whole length

(d) none of the above


Q14. The moment of resistance of a balanced reinforced concrete beam is based on the stresses in

(a) steel only

(b) concrete only

(c) steel and concrete both

(d) none of these


Q15. In a flange coupling, the flanges are coupled together by means of

(a) bolts and nuts

(b) studs

(c) headless taper bolts

(d) none of these


Q16. A transmission shaft includes

(a) counter shaft

(b) line shaft

(c) over head shaft

(d) all of these


Q17. A locking device in which the bottom cylindrical portion is recessed to receive the tip of the locking set screw, is called

(a) castle nut

(b) jam nut

(c) ring nut

(d) sawn nut


Q18. In a venturiflume, the flow takes place at

(a) atmospheric pressure

(b) gauge pressure

(c) absolute pressure

(d) none of these


Q19. The total pressure on the top of a closed cylindrical vessel completely filled up with a liquid is

(a) directly proportional to (radius)2

(b) inversely proportional to (radius)2

(c) directly proportional to (radius)4

(d) inversely proportional to (radius)4


Q20. When the Mach number is more than 6, the flow is called

(a) subsonic flow

(b) sonic flow

(c) super-sonic flow

(d) hyper-sonic flow


Q21. The discharge through a convergent mouthpiece is __________ the discharge through an internal mouthpiece of the same diameter and head of water.

(a) equal to

(b) one-half

(c) three fourth

(d) double


Q22. Which of the following statement is wrong?

(a) The spheroidising process is usually applied to high carbon tool steels which are difficult to machine

(b) In spheroidising process, the cementite in the granular form is produced in the structure of steel

(c) The annealing process causes complete recrystallisation in steels which have been severely cold worked and a new grain structure is formed

(d) none of the above


Q23. Duplex process of steel making is a combination of

(a) basic bessemer and acid open hearth processes

(b) acid bessemer and basic open hearth processes

(c) acid bessemer and acid open hearth processes

(d) basic bessemer and basic open hearth processes


Q24. The property of a material necessary for forgings, in stamping images on coins and in ornamental work, is

(a) elasticity

(b) plasticity

(c) ductility

(d) malleability


Q25. A ladder is resting on a smooth ground and leaning against a rough vertical wall. The force of friction will act

(a) towards the wall at its upper end

(b) away from the wall at its upper end

(c) downward at its upper end

(d) upward at its upper end


Q26. The slope on the road surface generally provided on the curves is known as

(a) angle of friction

(b) angle of repose

(c) angle of banking

(d) none of these


Q27. For any system of coplanar forces, the condition of equilibrium is that the

(a) algebraic sum of the horizontal components of all the forces should be zero

(b) algebraic sum of the vertical components of all the forces should be zero

(c) algebraic sum of moments of all the forces about any point should be zero

(d) all of the above


Q28. An open cycle gas turbine works on

(a) Carnot cycle

(b) Otto cycle

(c) Joule’s cycle

(d) Stirling cycle


Q29. When the gas is cooled at constant pressure,

(a) its temperature increases but volume decreases

(b) its volume increases but temperature decreases

(c) both temperature and volume increases

(d) both temperature and volume decreases


Q30. As per Charles’ law, the volume of a given mass of a perfect gas varies __________ as its absolute temperature, when the absolute pressure remains constant.

(a) directly

(b) indirectly

(c) no relation

(d) none of the above


Q31. In an extensive property of a thermodynamic system

(a) extensive heat is transferred

(b) extensive work is done

(c) extensive energy is utilised

(d) none of these


Q32. Rotary compressors are used for delivering

(a) small quantities of air at high pressures

(b) large quantities of air at high pressures

(c) small quantities of air at low pressures

(d) large quantities of air at low pressures


Q33. A rotary compressor is driven by an

(a) electric motor

(b) engine

(c) either (a) or (b)

(d) none of these


Q34. In a centrifugal compressor, an increase in speed at a given pressure ratio causes

(a) increase in flow

(b) decrease in flow

(c) increase in efficiency

(d) increase in flow and decrease in efficiency


Q35. A large clearance Volume in a reciprocating compressor results in

(a) reduced volume flow rate

(b) increased volume flow rate

(c) lower suction pressure

(d) lower delivery pressure


Q36. The effect of having excess camber is

(a) excessive steering alignment torque

(b) hard steering

(c) too much traction

(d) uneven tyre wear


Q37. If the air-fuel mixture ignites before the spark takes place at spark plug, the condition is called

(a) detonation

(b) ignition

(c) pre-ignition

(d) rumble


Q38. The diagram which shows the correct crank positions corresponding to the opening and closing of the valves, is known as

(a) indicator diagram

(b) axial force diagram

(c) valve timing diagram

(d) none of these


Q39. In value engineering, the term value refers to

(a) manufacturing cost of the product

(b) selling price of the product

(c) total cost of the product

(d) utility of the product


Q40. Production cost refers to prime cost plus

(a) factory overheads

(b) factory and administration overheads

(c) factory, administration and sales overheads

(d) factory, administration, sales overheads and profit


Q41. A systematic job improvement sequence will consist of

(a) motion study

(b) time study

(c) job enrichment

(d) all of these


Q42. Cast iron during machining produces

(a) continuous chips

(b) discontinuous chips

(c) continuous chips with built-up-edge

(d) none of these


Q43. A single point thread cutting tool should ideally have

(a) zero rake angle

(b) positive rake angle

(c) negative rake angle

(d) point angle


Q44. The cutting tool in a milling machine is mounted on

(a) spindle

(b) arbor

(c) column

(d) knee


Q45. One quick way to view the entire drawing area is to use the Zoom command by typing ________.

(a) type Z enter A enter

(b) type Z enter E enter

(c) type SHOWALL enter

(d) type ALL enter


Q46. When setting up a mechanical drawing in AutoCAD the drafter should set the units to ________.

(a) fractional

(b) decimal

(c) architectural

(d) metric


Q47. In a class B push-pull amplifier, the transistors are biased slightly above cut-off to avoid

(a) crossover distortion

(b) unusually high efficiency

(c) negative feedback

(d) a low input impedance


Q48. The depletion-mode MOSFET

(a) can operate with only positive gate voltages

(b) can operate with only negative gate voltages

(c) cannot operate in the ohmic region

(d) can operate with positive as well as negative gate voltages


Q49. Ailerons are used to control

(a) Yaw of aircraft

(b) pitch

(c) roll

(d) None of these


Q50. Stalling of the aerofoil occurs

(a) When the angle of attack is beyond critical angle of attack.

(b) When the angle of attack is less than critical angle of attack.

(c) Both A and B

(d) None of the above

AFCAT EKT Mechanical mock test answer key :

AFCAT EKT Mechanical Mock Test Answer Key
Question
Number
AnswerQuestion
Number
Answer
1B26C
2A27D
3B28C
4A29D
5C30A
6C31D
7B32D
8C33C
9D34D
10A35A
11D36D
12C37C
13C38C
14C39D
15A40A
16D41D
17C42B
18A43A
19C44B
20D45A
21D46B
22D47A
23B48D
24B49C
25D50A

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