Practice Test: Question Set - 36
1. The buckling load will be maximum for a column, if
- (A) One end of the column is clamped and the other end is free
- (B) Both ends of the column are clamped
- (C) Both ends of the column are hinged
- (D) One end of the column is hinged and the other end is free
2. A flanged pipe joint will be a leak-proof joint, if the circumferential pitch of the bolts is (where d = Diameter of bolt hole)
- (A) Less than 20d
- (B) Greater than 30d
- (C) Between 20d and 30d
- (D) Equal to inside diameter of pipe
3. Which of the following is an anti-friction bearing?
- (A) Journal bearing
- (B) Pedestal bearing
- (C) Collar bearing
- (D) Needle bearing
4. For low and moderate speed engines, the cam follower should move with
- (A) Uniform velocity
- (B) Simple harmonic motion
- (C) Uniform acceleration and retardation
- (D) Cycloidal motion
5. The diameter of the rivet hole is usually __________ the nominal diameter of the rivet.
- (A) Equal to
- (B) Less than
- (C) More than
- (D) None of these
6. When a machine member is subjected to torsion, the torsional shear stress set up in the member is
- (A) Zero at both the centroidal axis and outer surface of the member
- (B) Maximum at both the centroidal axis and outer surface of the member
- (C) Zero at the centroidal axis and maximum at the outer surface of the member
- (D) Maximum at the centroidal axis and zero at the outer surface of the member
7. The root angle of a bevel gear is equal to
- (A) Pitch angle - addendum angle
- (B) Pitch angle + addendum angle
- (C) Pitch angle - dedendum angle
- (D) Pitch angle + dedendum angle
8. Which of the following statement is wrong?
- (A) The solid length of a spring is the product of total number of coils and the diameter of the wire
- (B) The spring index is the ratio of mean diameter of the coil to the diameter of the wire
- (C) The spring stiffness is the load required per unit deflection of the spring
- (D) The pitch of the coil is the axial distance between adjacent coils in the compressed state
9. Which of the following bearing is preferred for oscillating conditions?
- (A) Double row roller bearing
- (B) Taper roller bearing
- (C) Angular contact single row ball bearing
- (D) Needle roller bearing
10. The usual proportion for the width of key is (where d = Diameter of shaft or diameter of hole in the hub)
- (A) d/8
- (B) d/6
- (C) d/4
- (D) d/2
11. A hollow shaft will transmit a __________ torque than a solid shaft of the same mass and same material.
- (A) Smaller
- (B) Greater
- (C) Medium
- (D) None of these
12. The groove angle of the pulley for rope drive is usually
- (A) 20°
- (B) 35°
- (C) 45°
- (D) 60°
13. The diameter of knuckle pin in a knuckle joint is usually taken as (where d = Diameter of the rod)
- (A) 0.5 d
- (B) 0.8 d
- (C) d
- (D) 1.2 d
14. The centrifugal tension in the belt
- (A) Increases the power transmitted
- (B) Decreases the power transmitted
- (C) Has no effect on the power transmitted
- (D) Is equal to maximum tension on the belt
15. A woodruff key is
- (A) A tapered key with head at one end
- (B) Fitted in pairs at right angles
- (C) Capable of tilting in a recess milled out in the shaft
- (D) All of the above