Machine Design - Study Mode

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[#516] Basic shaft is one

(A) Whose upper deviation is zero

(B) Whose lower deviation is zero

(C) Whose lower as well as upper deviations are zero

(D) Does not exist

Correct Answer

(A) Whose upper deviation is zero

[#517] Which of the following statement is wrong?

Correct Answer

(D) The pitch of the coil is the axial distance between adjacent coils in the compressed state
(F) The V-belt drive is used with large center distance
(L) According to I.B.R., the thickness of butt strap shall not be less than 5 mm
(N) A key is subjected to tensile stresses

[#518] Aircraft body is usually fabricated by

(A) Welding

(B) Pre-casting

(C) Riveting

(D) Casting

Correct Answer

[#519] The property of a material which enables it to resist fracture due to high impact loads is known as

(A) Elasticity

(B) Endurance

(C) Strength

(D) Toughness

Correct Answer

(D) Toughness

[#520] A self locking screw has

(A) Fine threads

(B) Course threads

(C) Coefficient of friction is greater than tangent of load angle

(D) Hole for inserting split pin