NHPC-JE'21 CE: Daily Practices Quiz. 22-Nov-2021 |_00.1
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NHPC-JE’21 CE: Daily Practices Quiz. 22-Nov-2021

Know your strengths and practice your concepts with this quiz on NHPC JE Recruitment 2021. This quiz for NHPC JE Recruitment 2021 is designed specially according to NHPC Syllabus 2021.

Quiz: Civil Engineering
Exam: NHPC-JE
Topic: Miscellaneous

Each question carries 1 mark
Negative marking: 1/4 mark
Time: 8 Minutes

Q1. Separation of coarse aggregates form mortar during transportation is known as:
(a) Bleeding
(b) Creeping
(c) Segregation
(d) Shrinking

Q2. Piezometer is used to measure:
(a) Pressure in pipe, channels etc.
(b) Atmospheric pressure
(c) Very low pressure
(d) Difference of pressure between two points

Q3. On horizontal curve, if the pavement is kept horizontal across the alignment, then the pressure on the outer wheels will be …………..
(a) More than the pressure under inner wheels
(b) Less than pressure under inner wheels
(c) Equal to the pressure on inner wheels
(d) Zero

Q4. Two-way slab is supported on _________ edges of wall
(a) 4
(b) 3
(c) 2
(d) 1

Q5. The relation between coefficient of consolidation C_V, time factor T_V, drainage path d and time, t, is given by:
(a) C_V=〖T_v d〗^2/t
(b) C_v=(d^2 t)/T_v
(c) C_V=(tT_v)/d^2
(d) C_V=T_v/(td^2 )

Q6. The concentration of organic solids in water to be used in reinforced cement concrete
(a) 50 mg/L
(b) 100 mg/L
(c) 150 mg/L
(d) 200 mg/L

Solutions

S1. Ans.(c)
Sol. Segregation→ Separation of coarse aggregates from mortar during transportation is called segregation. Due to segregation voids in concrete increased and strength of concrete decreased.

S2. Ans.(c)
Sol. Piezometer is a device which is used to measure low pressure it can only measure pressure of liquid only and not able to measure for gas. It could not able to measure pressure below ambient I.e., vacuum pressure.

S3. Ans.(a)
Sol. On a horizontal curve, if the pavement is kept horizontal across the alignment, then the pressure on the outer wheels will be more than the pressure on inner wheels.

S4. Ans.(a)
Sol. ▭(ly/lx<2) (two-way slab)
⇒ In two-way slab, all four side of wall is fixed.

S5. Ans.(a)
Sol. We know-▭(T_v=(C_v t)/d^2 )
∴ ▭(C_v=(T_v d^2)/t)
T_V→Time factor
C_v→Coefficient of conslidation
d→ drainage path
t→ time.

S6. Ans.(d)
Sol. Concentration of organic solid in water not greater that 200 mg/l
Inorganic → 3000 mg/l
Sulphate → 400 mg/l
Chloride → 2000 mg/l (PCC) and 500 mg/l (RCC)
Suspended matter → 2000 mg/l

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