Machine Design A bolt of uniform strength can be developed by Keeping the core diameter of threads equal to the diameter of unthreaded portion of the bolt None of these Keeping the core diameter smaller than the diameter of the unthreaded portion Keeping the nominal diameter of threads equal to the diameter of unthreaded portion of the bolt Keeping the core diameter of threads equal to the diameter of unthreaded portion of the bolt None of these Keeping the core diameter smaller than the diameter of the unthreaded portion Keeping the nominal diameter of threads equal to the diameter of unthreaded portion of the bolt ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the belt is transmitting maximum power, the belt speed should be (Where, m = mass of belt per meter (kg/m) and Pmax = maximum permissible tension in belt (N)) √(Pmax / 3m) √(Pmax / 2m) √(Pmax / m) √(3m /Pmax) √(Pmax / 3m) √(Pmax / 2m) √(Pmax / m) √(3m /Pmax) ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a boundary lubricated bearing, there is a __________ of lubricant between the journal and the bearing. Thin film Thick film Either A or B None of these Thin film Thick film Either A or B None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which of the following statement is wrong for a connecting rod? The most suitable section for the connecting rod is T-section The connecting rod will be equally strong in buckling about X-axis and Y-axis, if Ixx = 4 Iyy If Ixx > 4 Iyy, the buckling will occur about Y-axis If Ixx < 4 Iyy, the buckling will occur about X-axis The most suitable section for the connecting rod is T-section The connecting rod will be equally strong in buckling about X-axis and Y-axis, if Ixx = 4 Iyy If Ixx > 4 Iyy, the buckling will occur about Y-axis If Ixx < 4 Iyy, the buckling will occur about X-axis ANSWER DOWNLOAD EXAMIANS APP
Machine Design When two non-intersecting and non-coplanar shafts are connected by gears, the arrangement is known as Bevel gearing Helical gearing Spiral gearing Spur gearing Bevel gearing Helical gearing Spiral gearing Spur gearing ANSWER DOWNLOAD EXAMIANS APP
Machine Design The efficiency of a square threaded screw is maximum if the helix angle is equal to(Where φ = Angle of friction) 45° - φ 45° - φ/2 90° - φ 45° + φ/2 45° - φ 45° - φ/2 90° - φ 45° + φ/2 ANSWER DOWNLOAD EXAMIANS APP
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