# Mechanical Engineering MCQ

31-Euler’s formula is applicable for which type of columns?

(A) Weak columns

(B) Long columns

(C) Short columns

(D) Strong columns

32- Which of the following relation is a mathematical expression of Grashof’s law? S, L, P and Q denote length of the smallest, longest and other two links respectively.

(A) L+P < S+Q

(B) L+S < P+Q

(C) L+S > P+Q

(D) L+P = S+Q

33- The property of a material due to which it resists fracture caused by impact load is called as

(A) Resilience

(B) Toughness

(C) Stiffness

(D) Hardness

34- Transfer box is used in

(A) Front wheel Drive automobiles

(B) Rear wheel Drive automobiles

(C) Four wheel Drive automobiles

(D) Two wheeled automobiles

35- Which of the following materials is the best example of Amorphous material?

(A) Silver

(B) Brass

(C) Mica

(D) Glass

36- What will be the controlling force curve in case of spring controlled governors?

(A) A zigzag line

(B) Hyperbolic

(C) Parabolic

(D) Straight line

37- Which one of the following is a flexible coupling?

(A) Sleeve coupling

(B) Flange coupling

(C) Bushed pin type coupling

(D) Split muff coupling

38- Peaks and valleys of surface irregularities are called

(A) Asperities

(B) Waves

(C) Perspectives

(D) Manifolds

39- What is the purpose of using auto-collimator?

(A) To measure small angular differences.

(B) To measure flatness.

(C) To measure concavity.

(D) To check surface linearity.

40- The wet bulb depression is zero, when relative humidity is equal to

(A) Zero

(B) 0.5

(C) 0.75

(D) 1