AXIAL TENSILE STRESS 4. TRANSVERSE SHEAR STRESS SELECT THE CORRECT...
3. Axial tensile stress
4. Transverse shear stress
Select the correct answer using the codes given below
(a) 1, 3 and 4
(b) 2, 3 and 4
(c) 1, 2 and 3
(d) 1, 2 and 4
IES-2. Ans. (d)
IES-3.
Match List I with List II and select the correct answer using the codes
given below the lists:
[IES-1995]
List
I
List
II
A. Crank shaft
1. Supports the revolving parts and transmits torque.
B. Wire shaft
2. Transmits motion between shafts where it is not possible
to effect a rigid coupling between them
C. Axle
3. Converts linear motion into rotary motion
D. Plain shaft
4. Supports only the revolving parts.
Codes: A
B
C
D
A
B
C
D
(a)
3
2
1
4
(b)
4
2
3
1
(c)
3
2
4
1
(d)
1
4
2
3
IES-3. Ans. (c)
IES-4.
The bolts in a rigid flanged coupling connecting two shafts transmitting
power are subjected to
[IES-2002]
(a) Shear force and bending moment (b) axial force.
(c) Torsion and bending moment
(d) torsion
IES-4. Ans. (a) The bolts are subjected to shear and bearing stresses while transmitting
torque.
Introduction Friction clutchesIES-5.
Which one of the following is not a friction clutch? [IES-2003]
(a) Disc or plate clutch
(b) Cone clutch
(c) Centrifugal clutch
(d) Jaw clutch
IES-5. Ans. (d)
IES-6.
Which one of the following pairs of parameters and effects is not correctly
matched?
[IES-1998]
(a) Large wheel diameter ………..Reduced wheel wear
(b) Large depth of cut ………...Increased wheel wear
(c) Large work diameter ………...Increased wheel wear
(d) Large wheel speed ………..Reduced wheel wear
IES-6. Ans. (d)
IES-7.
Two co-axial rotors having moments of inertia I
1
, I
2
and angular speeds ω
1
and
ω
2
respectively are engaged together. The loss of energy during
engagement is equal to
[IES-1994]
2
ω − ω
2I I
2
2
I I
I
I
1 2
1
2
1 1
2 2
(a)
(
)
(
)
+
2 I
I
+
(d)
−
(c)
(
)
+
(b)
(
)
1
2
IES-7. Ans. (c)
Design of Friction Drives
S K Mondal’s
Chapter 2
IES-8.
Which of the following statements hold good for a multi-collar thrust
bearing carrying an axial thrust of W units? [IES-1996]