RRB JE 2015-27-09-2015-3 RRB Question Paper

RRB JE 2015 Question Papers

RRB JE 2015-27-09-2015-3 RRB Questions

41.
As per Indian Standard specifications, concrete is designated into
A.
3 grades
B.
5 grades
C.
7 grades
D.
10 grades
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ANSWER :
C. 7 grades
42.
First class timber has an average life of
A.
Less than one year
B.
1 to 5 years
C.
5 to 10 years
D.
More than 10 years
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ANSWER :
C. 5 to 10 years
43.
Equation of continuity is based on the principle of conservation of
A.
Mass
B.
Energy
C.
Momentum
D.
Time
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ANSWER :
A. Mass
44.
The instrument used for accurate centering in plane table survey is
A.
Spirit level
B.
Alidade
C.
Plumbing fork
D.
Through compass
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ANSWER :
C. Plumbing fork
45.
A series of closely spaced contour lines represents a
A.
Steep slope
B.
Gentle slope
C.
Uniform slope
D.
Plane surface
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ANSWER :
A. Steep slope
46.
After storage, the strength of cement
A.
Decreases
B.
Increases
C.
Remains same
D.
May increase or decrease
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ANSWER :
A. Decreases
47.
The pointer of an indicating instrument should be
A.
very light
B.
very heavy
C.
either light or heavy
D.
neither light nor heavy
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ANSWER :
A. very light
48.
In majority of instruments, damping is provided by
A.
fluid friction
B.
spring
C.
eddy currents
D.
both spring and fluid friction
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ANSWER :
C. eddy currents
49.
An ammeter is a
A.
secondary instrument
B.
absolute instrument
C.
recording instrument
D.
integrating instrument
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ANSWER :
A. secondary instrument
50.
The function of shunt in an ammeter is to
A.
by pass the current
B.
increase the sensitivity of the ammeter
C.
increase the resistance of ammeter
D.
either increasing sensitivity of ammeter or by passing current
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ANSWER :
A. by pass the current