Mechanical Engineering CBT Mock Test - Set 15

Mechanical Mock Test - Set 15

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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. The root angle of a bevel gear is equal to
     (A) Pitch angle - addendum angle
     (B) Pitch angle + addendum angle
     (C) Pitch angle - dedendum angle
     (D) Pitch angle + dedendum angle
     Answer: Option C

02. The area under the temperature-entropy curve (T - s curve) of any thermodynamic process represents
     (A) Heat absorbed
     (B) Heat rejected
     (C) Either (A) or (B)
     (D) None of these
     Answer: Option C

03. Larger than 15° side cutting edge angle
     (A) Increases tool life
     (B) Decreases tool life
     (C) Produces chipping and decreases tool life
     (D) Results in excessive stress concentration and greater heat generation
     Answer: Option C

04. In forced circulation steam boilers, the force is applied
     (A) To draw water
     (B) To circulate water
     (C) To drain off the water
     (D) All of these
     Answer: Option B

05. In a partial journal bearing, the angle of contact of the bearing with the journal is
     (A) 120°
     (B) 180°
     (C) 270°
     (D) 360°
     Answer: Option A

06. Eye bolts are used for
     (A) Foundation purposes
     (B) Absorbing shock and vibrations
     (C) Transmission of power
     (D) Lifting and transportation of machines and cubicles
     Answer: Option D

07. The maximum shear stress in spring wire is induced at
     (A) Inner surface of the coil
     (B) Outer surface of the coil
     (C) Central surface of the coil
     (D) End coils
     Answer: Option A

08. In a gear having involute teeth, the normal to the involute is a tangent to the
     (A) Pitch circle
     (B) Base circle
     (C) Addendum circle
     (D) Dedendum circle
     Answer: Option B

09. The leakage in a refrigeration system using Freon is detected by
     (A) Halide torch
     (B) Sulphur sticks
     (C) Soap and water
     (D) All of these
     Answer: Option A

10. PERT stands for
     (A) Programme Estimation and Reporting Technique
     (B) Process Estimation and Review Technique
     (C) Programme Evaluation and Review Technique
     (D) Planning Estimation and Resulting Technique
     Answer: Option C

11. Two coplanar couples having equal and opposite moments
     (A) Balance each other
     (B) Produce a couple and an unbalanced force
     (C) Are equivalent
     (D) Cannot balance each other
     Answer: Option D

12. The stiffness of spring is,
     (A) Deflection per unit of axial force
     (B) Force per unit cross-sectional area of spring
     (C) Ratio of mean coil diameter to wire diameter
     (D) Force required to produce unit deflection
     Answer: Option D

13. In a watch, the spring is used to store strain energy. This energy is released
     (A) To stop the watch
     (B) To run the watch
     (C) To change the time
     (D) All of these
     Answer: Option B

14. The type of spring used to achieve any linear or non-linear load-deflection characteristic is
     (A) Spiral spring
     (B) Non-ferrous spring
     (C) Belleville (coned disk) spring
     (D) Torsion spring
     Answer: Option C

15. In an ideal gas turbine plant, it is assumed that the compression and expansion processes are
     (A) Isothermal
     (B) Isentropic
     (C) Polytropic
     (D) None of these
     Answer: option B

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