Live Mock Test Mechanical Engineering - Set 09

Mechanical Mock Test - Set 09

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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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View Test Result:

01. Steam exhaust from high pressure turbine is reheated in
     (A) Boiler drums
     (B) Superheater tubes
     (C) Economiser
     (D) A separate coil located in convection path
     Answer: Option D

02. The rolling contact bearings are known as
     (A) Thick lubricated bearings
     (B) Plastic bearings
     (C) Antifriction bearings
     (D) Thin lubricated bearings
     Answer: Option C

03. Head developed by a centrifugal pump is
     (A) Proportional to diameter of impeller
     (B) Proportional to speed of impeller
     (C) Proportional to diameter and speed of impeller
     (D) None of the above
     Answer: Option C

04. The ideal efficiency of a Brayton cycle without regeneration, with increase in pressure ratio will
     (A) Increase
     (B) Decrease
     (C) Remain unchanged
     (D) Increase/decrease depending on application
     Answer: Option A

05. The period during which the cam follower remains at rest, when cam moves, is known as
     (A) Constant period
     (B) Fixed period
     (C) Dwell period
     (D) Idle period
     Answer: Option C

06. The operation of producing grooves around the periphery of a cylindrical or conical workpiece is called
     (A) Profile milling
     (B) Gang milling
     (C) Saw milling
     (D) Helical milling
     Answer: Option D

07. A pulley and belt in a belt drive form a
     (A) Cylindrical pair
     (B) Turning pair
     (C) Rolling pair
     (D) Sliding pair
     Answer: Option B

08. The wires in wire rope are subjected to
     (A) Tensile stress
     (B) Tensile and bending stresses
     (C) Shear stress
     (D) Crushing stress
     Answer: Option B

09. The routing function in a production system design is concerned with
     (A) Manpower utilization
     (B) Quality assurance of the product
     (C) Machine utilization
     (D) Optimizing material flow through the plant
     Answer: Option C

10. The parts of circular cross-section which are symmetrical about the axis of rotation are made by
     (A) Hot forging
     (B) Hot spinning
     (C) Hot extrusion
     (D) Hot drawing
     Answer: Option B

11. Which of the following statement is correct as regard to water wheels?
     (A) They have slow speeds
     (B) They are suitable even for low water heads
     (C) They give constant efficiency, even if the discharge is not constant
     (D) All of the above
     Answer: Option D

12. Compression member tends to buckle in the direction of
     (A) Axis of load
     (B) Any direction in a plane perpendicular to axis of load
     (C) Least radius of gyration in a plane perpendicular to axis of load
     (D) None of the above
     Answer: Option C

13. Which of the following refrigerant has the maximum ozone depletion potential in the stratosphere?
     (A) Ammonia
     (B) Carbon dioxide
     (C) Sulphur dioxide
     (D) Fluorine
     Answer: Option D

14. A localized compressive stress at the area of contact between two members is known as
     (A) Tensile stress
     (B) Bending stress
     (C) Crushing stress
     (D) Shear stress
     Answer: Option C

15. The diameter of internal flue tubes in a Lancashire boiler compared to its shell is
     (A) One-half
     (B) One-third
     (C) Two-fourth
     (D) Two-fifth
     Answer: Option D

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