2016 FITTER THEORY SEM-IV
11 Which
of the following parameters
influence
the axial feed rate in
centreless grinding?
a)
Regulating wheel diameter
b) Angle
between the axes of grinding
and
regulating wheels
c) Speed
of the regulating wheel
d) All of
these
Answer:- d)
All of these
12. Hydraulic
oil is compressible
a) Not at
all
b) Very
much
c) Very
Little
d) None
of these
Answer:- c)
Very Little
13. Power
= Torque x .................
a) Velocity
a) Velocity
b) RPM
c) Force
d) Area
Answer:- b)
RPM
14. .... is
prime mover in hydraulic system.
a) Oil
b)
Electric Motor
c) Pipe
d)
Impeller
Answer:- b)
Electric Motor
15. Power
of Pump = .............. x
Volume
flow rate.
a)
Velocity
b) RPM
c) Force
d)
Pressure
Answer:- d)
Pressure
16. 1 HP
= ................ W
a) 746
a) 746
b) 1000
c) 100
d) 764
Answer:- a)
746
17. Which
flat belt drive system has
two
pulleys mounted on driven shaft
and one
pulley on driving shaft?
a)
Multiple belt drive
b) Cone
pulley drive
c) Fast
and loose pulley drive
d) None
of these
Answer:- )
Fast and loose pulley drive
18. Which
of the following statements
are false
for belt drives?
i) Belt
drive is used in applications
having constant speed dnve
ii) Belt
drives can be used at extremely
high speeds
iii) Belt
drives have low power
transmitting capacity
iv) Belt
drives need continuous lubrication
a) (i)
& (ii)
b) (i),
(ii) & (iii)
c) (ii),
(iii)&(iv)
d) (i),
(ii) & (iv)
Answer:- d)
(i), (ii) & (iv)
19. Determine
power rating of an electric
motor if
it runs at 1440 r.p.m and line shaft
transmits
torque of 75 Nm. Assume
Reduction
ratio = 1.6 .................
a) 10.36 kW
b) 11.3kW
c) 7.068 kW
d) 9.12kW
Answer:- c) 7.068 kW
20. In
simple gear trains the direction of
rotation
of driven gear is opposite to the
direction of rotation of driving gear
direction of rotation of driving gear
only if
...................
a) Even number of idler gears are present
a) Even number of idler gears are present
b) Odd
number of idler gears are present
c) Any number of idler gears are present
c) Any number of idler gears are present
d) None
of these
Answer:- a)
Even number of idler gears are
present
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