Machine Design - Study Mode

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[#416] Creep in belt is due to

(A) Material of the belt

(B) Material of the pulley

(C) Uneven extensions and contractions due to varying tension

(D) All of the above

Correct Answer

(C) Uneven extensions and contractions due to varying tension

[#417] The spring mostly used in gramophones is

(A) Helical spring

(B) Conical spring

(C) Flat spiral spring

(D) Volute spring

Correct Answer

(C) Flat spiral spring

[#418] In designing a connecting rod, it is considered like __________ for buckling about X-axis.

(A) Both ends hinged

(B) Both ends fixed

(C) One end fixed and the other end hinged

(D) One end fixed and the other end free

Correct Answer

(A) Both ends hinged

[#419] In designing a connecting rod, it is considered like __________ for buckling about Y-axis.

(A) Both ends hinged

(B) Both ends fixed

(C) One end fixed and the other end hinged

(D) One end fixed and the other end free

Correct Answer

(B) Both ends fixed

[#420] Tensile strength of a mild steel specimen can be roughly predicted from following hardness test

(A) Brinell

(B) Rockwell

(C) Vickers

(D) None of the above

Correct Answer

(A) Brinell