SEM 4 JULY 17 FITTER
V-block (vee locators) are used for clamping as well as locating when faces are inclined uptp:-
a)30* b) 12* c) 9* d) 3*
Gun metal is an alloy of copper:
a) Tin and Zinc c) Zinc and Nickel b) Lead and Zinc d) Lead and Nickel
Brass in an alloy of
a) Copper and Tin e) Copper and Zinc b) Lead and Tin d) Copper and Silver
TQM is meant to satisfy _
a) Shareholders c) People in the organization b) Consumers d) All of these
Which one of the following thread forms on bolts and nuts is meant for general fastening
a)V thread b) Square thread c) Knuckle threads d) Acme threads
A tab washer is used for
a) Self -locking c) Avoiding vibration b) Locking the nuts d) Fastening vibration work
Electroplating is done on jobs to resist corrosion. Which pole of a D.C supply is connected to the work in electroplating process?
a) Positive pole b) Positive terminal post c) Negative pole d) Negative terminal post
Which material is used for joining CI pipe?
a) Brass c) Lead b) Tin d) Corrosion
The brass used making the joint in brazing for soldering material is ......................
a) Flux b) Borax c) Spelter d) Soft soldering
Which type of key is used for coupling a pulley with a shaft?
a) Square key b) Woodruff key c) Gib head key d) Flat saddle key
Which one of the following reason in responsible for shearing of rivet in a riveted joint?
a) Diameter of the rivet is too small b) Diameter of the rivet is too large
c) Thickness of plates vary d) Pitch of the holes is too small
Viscosity is an internal property of a fluid, it is a measure of its resistance to :-
a) Current b) Light c) Sound d) Flow
The storage space of a fluid is called................
a) Strainer c) Plug b) Reservoir d) Pump
In a pneumatic system, a sensor serves the purpose of .....................
a) Transmission b) Control c) Feedback d) Storage
Typical locating device for cylindrical job used in jigs and fixtures are
a) Drill jigs b) V-block c) Mandrels d) Angle plate
A jig is a device used for_.
a) Holding the workpiece b) Guiding the tool
c) Loosening the workpiece d) Holding the workpiece and guide the tool
In a vee belt the angle between the side is.....................
a)10 degree b) 20 degree c) 30 degree d) 40 degree
The function of a washer is..................
a) To fill the axial gap c) To absorb shock and vibrations
b) To provide cushioning effect d) To provide bearing area
What joint is used for temporary pipe line?
a) Expansion joint b) Flange joint c) Screwed joint d) Collar joint
Which pipe is used for interior work?
a) Steel pipe c) Wrought iron pipe b) PVC pipe d) Lead pipe
Name the part marked 'x' shown in figure.
a) Stuffing box c) Gland nut b) Bonnet. d) Metal disk holders
Soldering iron are made of copper because..........................
a) It is heavy
c) It is thermal expansion is more
b) It is a bad conductor of heat
d) It is good conductor of heat
Which type of thread is used for power screws?
a) Metric b) Knuckle c) Square d) BSW
Which nonferrous metal tensile strength can be increased by hammering or rolling?
a) Lead b) Copper c)Tin d)Zinc
Which type of knot is used to joins two pieces of rope of equal diameters?
a) Slip knot b) Bowline knot c) Square knot d) Sheep shank knot
Belt slips reason is__
a) Less tension c) High starting torque b) Pulsating load d) Shock load
Name the rivet head used for heavy fabrication work,
a) Flat head b) Pan head c) Snap head d) Mushroom
To put off class 'B' fire the type of fire extinguisher used_
a) Dry powder b) Foam type c) Carbondioxide d) Jet of water
In a riveted joint the plates are placed end-to-end and jointed through cover plates. This
joint is called_
a) Lap joint b) Butt joint. c) Edge joint d) Corner joint '.
In a riveted joint the edges of plates are simply laid over each other and riveted.
This joint is called__.
a) Lap joint b) Butt joint c) Edge joint d) Corner joint
Which flux is used for soldering?
a) Zinc chloride c) Hydro chloric acid b) Ammonium Chloride d) All of these
In the process of soldering, you have noticed solder not sticking to sufficiently heated
copper soldering bit when rubbed over solder bar. What step do you take to overcome the
a) Pre- heat the solder b) Clean the bit thoroughly
c) Change the soldering bit shape d) Rub the bit over solder for longer period
Oil fire extinguished by _
a) Putting water on it
c) Soda acid extinguisher
b) Foam extinguisher
d) None of these
The best way of avoiding accident is by_.
a) Doing work in ancient way
b) Doing work in one's own way
c) Observing safety rules related to job, machine and workplace
d) Using safety equipment
In case of electric fire, which one of the following should not use_
a) Put water on it b) Use sand or clay
c) Use C.T.C. extinguisher d) Use dry chemical powder
Name the type of jig in which a base plate is not available,
a) Plate jig b) Box jig c) Trunnion jig d) Latch jig
An accident is_.
a) Unplanned event b) Non-controlled event
c) Undesirable event d) All of these
The included angle for the V belt is usually in degrees .............
a) 10 to 20 c) 30 to 40 b) 20 to 30 d) 60 to 80
The standard taper of pin
Best conductor of heat and electricity is
a) Nickel c) Chromium b) Copper d) Aluminium
Melting temperature range of soft solder_. :
a) 150-350 °c b)600-900°c
c) 500-600 °c d) None of these
Medium solder contains .
a) 37% lead and 63% tin b) 50% lead and 50% tin
c) 70% lead and 50% tin d) None of these ..
"Cyaniding" and "Nitriding" are two methods of_.
a) Hardening b). Case hardening
c) Tempering d) Normalising
Case hardening is a method of producing hard skin on the surface of
a) High-carbon steel parts b) Cast iron (heavy parts)
c) Low-carbon steel parts d) Alloy steel parts
Radial distance of a gear tooth from the pitch circle to the top of the tooth is known as: -
a) Addendum b) Dedendum
c) Module d) Pitch
The rolling contact bearings are known as
a) Thick lubricated bearings
c) Thin lubricated bearings
b) Plastic bearings
d) Antifriction bearings
The purpose of lubrication
a) To reduce friction
c) Transfer heat produced
b) To reduce wear
d) All of these
When close the pipe end is required fitting of_
a) Plug b) Cap
c) Socket d) Tee
For shaft in parallel and rotating in same direction the belt drive used
a) Open b) Cross
c) Diagonal d) None of these
The size of gear is usually
a) Pressure angle
c) Diametrical pitch
b) Circular pitch