Question Set 194

31.

The effective stress in wire ropes during normal working is equal to the stress due to

A.	axial load plus stress due to bending
B.	acceleration/retardation of masses plus stress due to bending
C.	axial load plus stress due to acceleration/retardation
D.	bending plus stress due to acceleration/retardation

Answer: Option A

32.

When the length of the journal is equal to the diameter of the journal, then the bearing is said to be a

A.	short bearing
B.	long bearing
C.	medium bearing
D.	square bearing

Answer: Option D

33.

A connecting rod should be

A.	strong in buckling about X-axis
B.	strong in buckling about Y-axis
C.	equally strong in buckling about X-axis and Y-axis
D.	any one of the above

Answer: Option C

34.

According to I.B.R., the efficiency of a triple riveted butt joint with double straps of unequal width (5 rivets per pitch length) should be

A.	45 to 60%
B.	63 to 70%
C.	70 to 83%
D.	80 to 90%

Answer: Option D

35.

When two non-parallel or intersecting but coplaner shafts are connected by gears, the arrangement is known as bevel gearing.

A.	Correct
B.	Incorrect

Answer: Option A

36.

According to Indian standards, a bolt thread of 6 mm size of coarse pitch and with allowance on the threads and normal tolerance grade is designated as

A.	M6
B.	M8
C.	M6 - 8d
D.	M8 - 6d

Answer: Option C

37.

According to maximum normal stress theory, the maximum normal stress in the shaft is

A.
B.
C.
D.

Answer: Option C

38.

When a beam of rectangular cross-section of width b and depth d, is subjected to a shear force F, the maximum shear stress induced will be

A.
B.
C.
D.

Answer: Option B

39.

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

Answer: Option B

40.

A steel containing __________ 0.8% carbon is known as hypo-eutectoid steel.

A.	equal to
B.	less than
C.	greater than

Answer: Option B