Strength of Materials Test Questions

Q.  According to maximum strain energy theory, failure of material due to complex stresses occurs when total stored energy per unit volume at a point ___________

a. reaches the value of yield point
b. reaches the value of strain energy stored per unit volume at yield point
c. reaches the value of strain energy stored per unit volume at elastic limit
d. exceeds total strain energy caused by uniaxial stress at elastic point


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  Which of the following belts is used when axes of two shafts are perpendicular and intersecting?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Friction ply used in multiple-ply belts is made of ___________
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Two pulleys of an open belt drive A and B transmit power of 100 kW from pulley A running at 1000 r.p.m to pulley B at 500 r.p.m. If diameter of pulley A is 150 mm and 3% is the slip at operating conditions then what is the diameter of pulley B? (Assume thickness of belt = 12 mm)
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  A flat belt pulley has centre distance between two pulleys as 1000 mm. If diameters of two pulleys are 600 mm and 300 mm, what is the length of belt?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  What is the shear stress in fluid per unit velocity gradient called as?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Which of the following is not a property of lubricants?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Mass of ___________ required to neutralize one gram of lubricating oil is called as neutralization number.
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Which of the following gear tooth failures is/are induced when maximum Hertz contact stress on gear tooth surface exceeds surface endurance strength of tooth?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  What is Scuffing?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Angle made by ________ with axis of rotation is called as helix angle.
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  What is the minimum face width required for a helical gear which has helix angle of 23° and normal module of 7?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  To avoid interference the minimum number of teeth required on helical pinion decreases as helix angle ________
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Which of the following statements is/are true?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  A bevel gear has pitch circle diameters of pinion and gear as 20 mm and 40 mm respectively. What is the face width of bevel gear? (m =module)
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  What is the pitch line velocity if pinion has pitch circle diameter of 35 mm and rotates at 1000 r.p.m transmitting power of 250 kW to the gear?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  A bevel gear made of steel pinion and steel gear has dynamic factor C equal to __________
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  A straight bevel gear is manufactured by cutting process and maximum tangential force of 12000 N acts on it. What is the effective load acting between meshing teeth if pitch line velocity is 130 m/s?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  A deep groove ball bearing rotating at 1200 r.p.m. is subjected to radial and an axial force of 2000 N and 1500 N respectively. What will be the basic dynamic capacity of bearing if 20,000 hours is the rating life? (Consider radial factor = 0.55, Thrust factor = 2 & application factor = 1.5?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Load acting on bearing in its plane of rotation is called as __________
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Which of the following elements is not used as a roller in roller bearings?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts