Mechanical Engineering - Machine Design

1. 

If a bearing is designated by the number 305, it means that the bearing is of

A. light series whose bore is 5 mm
B. light series whose bore is 25 mm
C. medium series whose bore is 5 mm
D. medium series whose bore is 25 mm

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

2. 

Tapered roller bearings can take

A. radial load only
B. axial load only
C. both radial and axial loads and the ratio of these being less than unity
D. both radial and axial loads and the ratio of these being greater than unity

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

3. 

In order to remove internal stresses produced by hardening the steel, the process usually adopted is

A. tempering
B. annealing
C. normalising
D. spheroidising

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

4. 

A pressure vessel is said to be a thin shell, if the ratio of wall thickness to its diameter is equal to 1/10.

A. Yes
B. No

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

5. 

A bolt of uniform strength can be developed by

A. keeping the core diameter of threads equal to the diameter of unthreaded portion of the bolt
B. keeping the core diameter smaller than the diameter of the unthreaded portion
C. keeping the nominal diameter of threads equal to the diameter of unthreaded portion of the bolt
D. none of the above

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

1 2 3 4 5 6 7 8 9 10 Next »