1000+ Engineering Mechanics MCQ Questions and Answers Pdf - 2

Question: 6

Which one of the following is wrong in the list of assumptions for the analysis of pin jointed truss?

(A) Ends of members are pin connected

(B) Loads act vertically

(C) Self weighted neglected

(D) Load acts at joint only

Ans: B

Loads act vertically

Question: 7

The angles between the two forces to make their resultant a minimum and a maximum are respectively

(A) 0° and 180°

(B) 90° and 0°

(C) 180° and 90°

(D) 180° and 0°

Ans: D

180° and 0°

Question: 8

Which one of the following is fundamental law of forces?

(A) Parallelogram law

(B) Lami's theorem

(C) Polygonal law

(D) Triangle law

Ans: A

Parallelogram law

Question: 9

The coefficient of friction depends upon

(A) The shape of contact area

(B) The area of contact

(C) The roughness of the surface

(D) All of the above

Ans: C

The roughness of the surface

Question: 10

Compared to static friction, dynamic friction is

(A) Depending upon the value of coefficient of friction it may be more or less

(B) Same

(C) Less

(D) More

Ans: C

Less

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