Mechanical Engineering CBT Mock Test - Set 23

Mechanical Mock Test - Set 23

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Today, all competitive exams are Multiple Choice Questions(MCQ) based examination system and the main factor is to answer each question in a prescribed time. So, practice as much as possible before the original test you are going to face.

Total number of Multiple Choice Question (MCQ) is 15 and time allotted for each question is 30 seconds. After the allotted time, the question will be marked as un-attempt.

Test Conducted by: ObjectiveBooks.com

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 Next Mock Tests:

Set 01

Set 02

Set 03

Set 04

Set 05

Set 06

Set 07

Set 08

Set 09

Set 10

Set 11

Set 12

Set 13

Set 14

Set 15

Set 16

Set 17

Set 18

Set 19

Set 20

Set 21

Set 22

Set 23

Set 24

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View Test Result:

01. In testing a material for endurance strength, it is subjected to
     (A) Static load
     (B) Dynamic load
     (C) Impact load
     (D) Completely reversed load
     Answer: Option D

02. In a vapour compression system, the condition of refrigerant before entering the expansion or throttle valve is
     (A) High pressure saturated liquid
     (B) Wet vapour
     (C) Very wet vapour
     (D) Dry vapour
     Answer: Option A

03. Which of the following property is desirable for materials used in tools and machines?
     (A) Elasticity
     (B) Plasticity
     (C) Ductility
     (D) Malleability
     Answer: Option A

04. A cycle consisting of two isothermal and two isentropic processes, is known as
     (A) Carnot cycle
     (B) Stirling cycle
     (C) Ericsson cycle
     (D) Joule cycle
     Answer: option A

05. In spring balances, the spring is used
     (A) To apply forces
     (B) To measure forces
     (C) To absorb shocks
     (D) To store strain energy
     Answer: Option B

06. When bevel gears having equal teeth and equal pitch angles connect two shafts whose axes intersect at right angle, then they are known as
     (A) Angular bevel gears
     (B) Crown bevel gears
     (C) Internal bevel gears
     (D) Mitre gears
     Answer: Option D

07. Which of the following when used in ordinary low carbon steels, makes the metal ductile and of good bending qualities?
     (A) Sulphur
     (B) Phosphorus
     (C) Manganese
     (D) Silicon
     Answer: Option C

08. The swaying couple is maximum or minimum when the angle of inclination of the crank to the line of stroke (θ) is equal to
     (A) 90° and 180°
     (B) 45° and 225°
     (C) 180° and 270°
     (D) 270° and 360°
     Answer: Option B

09. A reversible change in the atomic structure of the steel with a corresponding change in the properties is known as
     (A) Allotropic change
     (B) Recrystallization
     (C) Heat treatment
     (D) Precipitation
     Answer: Option A

10. In nitrated parts, the origins of the fatigue cracks will occur at
     (A) Surface
     (B) Just below the surface
     (C) Within the core
     (D) None of the above
     Answer: Option D

11. Which of the following is independent of sales forecast?
     (A) Productivity
     (B) Inventory control
     (C) Production planning
     (D) Production control
     Answer: Option A

12. The ratio of the increase in pressure in rotor blades to total increase in pressure in the stage is called
     (A) Pressure ratio
     (B) Pressure coefficient
     (C) Degree of reaction
     (D) Slip factor
     Answer: Option C

13. The cutting speed is minimum while machining _________ with a high speed steel tool.
     (A) Cast iron
     (B) Mild steel
     (C) Brass
     (D) Aluminium
     Answer: Option A

14. Lead is poured into the joint between two pipes. These pipes may be made of
     (A) Cast iron
     (B) Vitrified clay
     (C) Asbestos cement
     (D) Concrete
     Answer: Option A

15. Steam turbines are used for
     (A) Large marine propulsion
     (B) Electric power generation
     (C) Direct drive of fans, compressors, pumps
     (D) All of these
     Answer: Option D

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