NCVT ALL INDIA TRADE TEST PAPER FEB 2016 SEM 4 PART 2

1) The fire triangle in fire hazards is identified as .............. 

fuel, oil, and waste

fuel, oxygen, and vapour

fuel, burning and solid

fuel, oxygen, and heat

Correct answer

fuel, oxygen, and heat

2) A master gauge is ...................... 

used by all mechanics

used by masters

a standard gauge for checking the accuracy of gauges used on shop floors

a gauge used by the experienced technician

Correct answer

a standard gauge for checking the accuracy of gauges used on shop floors

3) In a ‘V’ belt the angle between the side is ............ 

10°

20°

30°

40°

Correct answer

40°

4) Name the fixed type foundation bolt that is usually forged and filled up with lead and cement? 

Rag bolt

Eyebolt

bent type bolt

Ordinary bolt

Correct answer

Rag bolt

5) Which type of crowbar is easier to handle and the point will fit into a narrow gap? 

Short crowbar

Long crowbar

Single-ended crowbar

Double ended crowbar

Correct answer

Short crowbar

6) Which is used to provide a decorative and corrosion resistant coating on aluminum and its alloy? 

Cladding

Galvanizing

Anodizing

Tinning

Correct answer

Anodizing

7) What is the function of Dog clutch? 

It can only be engaged when two elements of the clutch are stationary

It can be engaged progressively when one or both the elements are rotating

When the speed is reduced the clutch opens by itself

The contact force is produced by springs

Correct answer

It can only be engaged when two elements of the clutch are stationary

8) The use of traveling wall crane is ............ 

it allows the load to move horizontally to or from the box

it allows the load to move in three directions

endless chains

two separate chains

Correct answer

it allows the load to move in three directions

9) The sensitiveness of the spirit level depends upon the ..................... 

size of the bubble

length of the glass tube

type of liquid filled in the glass tube

the curvature of the glass tube

Correct answer

the curvature of the glass tube

10) In which clutch, the pressure plate is used? 

Multiple plate clutch

Overriding clutch

Dog clutch

Centrifugal clutch

Correct answer

Multiple plate clutch

11) Name the belt drive shown in the figure. 

Stepped drive

Right angled drive

Open belt drive

Cross belt drive

Correct answer

Open belt drive

12) Generally, solder is an alloy of ................... 

antimony and tin

copper and tin

lead and tin

zinc and tin

Correct answer

lead and tin

13) Aluminum is extracted from the ore ................ 

aluminium oxide

magnetite

bauxite

pyrite

Correct answer

bauxite

14) Best conductor of heat and electricity is ........... 

aluminum

copper

nickel

chromium

Correct answer

copper

15) Which of the following is the non-metallic anti-corrosion treatment? 

Enameling

Colorizing

Sheradising

Cladding

Correct answer

Enameling

16) Which of the following fire extinguishing agent is suitable for a live electrical fire? 

Water

Carbon dioxide

Carbon tetrachloride

Foam

Correct answer

Carbon dioxide

17) In braze welding, the filler rod melting point is .............. 

above 450°C

above 550°C

above 600°C

above 650°C

Correct answer

above 650°C

18) Which metal can be joined by soldering and brazing more easily than aluminum? 

Zinc

Silver

Chromium

Copper

Correct answer

Copper

19) Which pipe wrench is used for holding large diameter of a pipe? 

Allen wrench

Pipe wrench

Strap wrench

Chain wrench

Correct answer

Chain wrench

20) The belt slips, due to ....... 

pulsating load

misalignment

less tension

high starting torque

Correct answer

pulsating load

21) Taper keys are rectangular cross section. They have a taper of ................ 

1: 100 on the thickness

1: 90 on the thickness

1: 80 on the thickness

1: 70 on the thickness

Correct answer

1: 100 on the thickness

22) The standard size of ‘V’ belt from section ‘D’ nominal top width is ........... 

22 mm

17 mm

38 mm

32 mm

Correct answer

32 mm

23) The error in squareness can be accurately determined by using a ........ 

cylinder square and slip gauge

try square and slip gauge

try square and feeler gauge

beveled edge try square

Correct answer

cylinder square and slip gauge

24) The spirit level is used for checking the level of the machine when .............. 

lifting the machine

shifting the machine

erecting the machine

grouting the machine

Correct answer

erecting the machine

25) What is the function of a soldering iron in the soderìng process? 

Melt the metal

Melt the solder

Cool the metal

Cool the metal

Correct answer

Melt the solder