1
GATE PI 2017
Numerical
+2
-0
In a calendar year, the demand forecast of motorbikes for the month of june is $$200.$$ The actual demand of motorbikes for the month of June and July are $$300$$ and $$350,$$ respectively. If single exponential smoothing method with smoothing constant $$0.7$$ is used, then the demand forecast for the month of August is ___________.
2
GATE PI 2017
MCQ (Single Correct Answer)
+1
-0.3
In gas tungsten arc welding process, the material coated on pure tungsten electrode to enhance its current carrying capacity is
A
Titanium
B
Manganese
C
D
Thorium
3
GATE PI 2017
MCQ (Single Correct Answer)
+2
-0.6
A solid circular shaft is subjected to a bending moment $$M$$ and torque $$T$$ simultaneously. Neglecting the effects of stress concentration, the equivalent bending moment is expressed as
A
$${1 \over 2}\left( {M + \sqrt {{M^2} + {T^2}} } \right)$$
B
$$\left( {{M \over 2} + \sqrt {{M^2} + {T^2}} } \right)$$
C
$${1 \over 2}\left( {M + \sqrt {{M^2} + 4{T^2}} } \right)$$
D
$$\left( {{M \over 2} + \sqrt {{M^2} + 4{T^2}} } \right)$$
4
GATE PI 2017
MCQ (Single Correct Answer)
+2
-0.6
A pair of spur gears with $${20^ \circ }$$ full-depth involute teeth is used to transmit $$3.5$$ $$kW$$ of power. The pinion rotates at $$700$$ $$rpm$$ and has pitch circle diameter of $$100$$ $$mm.$$ Assuming a single pair of teeth in contact, the total force acting on a gear tooth (in $$kN$$) is
A
$$0.347$$
B
$$0.954$$
C
$$1.016$$
D
$$1.302$$
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